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Heat shrink tubing is a plastic sleeve made of polyolefin that shrinks and deforms to a predetermined size when subjected to heat. It is placed over wires or jumpers and heated with a heat source to completely cover and conform to the surface of the cables. Through this processing method, insulation, waterproofing, and insulation cable characteristics can be achieved, providing protective performance and enhancing appearance. Advantages of heat shrink tubing: High temperature resistance and corrosion resistance: Heat shrink tubing has the characteristics of high temperature resistance and corrosion resistance, which can maintain stability in harsh environments, ensuring the stability and long-term reliability of speaker jumper wires.Prevention of short circuits and electrical faults: Heat shrink tubing can effectively isolate conductive parts, prevent contact between different cables from causing short circuits or other electrical faults, and improve the safety of the speakers.High tensile strength: The surface of the heat shrink tubing is smooth, highly wear-resistant, and has good tensile strength, which can prevent damage to the speaker jumper wires from external pulling or twisting.Environmentally friendly materials: Our heat shrink tubing is made of environmentally friendly materials, non-toxic, odorless, and free of harmful substances, safe to use.Wide range of applications: Heat shrink tubing is suitable for the protection and repair of various speaker jumper wires, meeting the needs of cables of different specifications and shapes, and has strong versatility. How to correctly use heat shrink tubing Choosing the right size: When using heat shrink tubing, it is essential to select the appropriate size to ensure complete coverage of the speaker jumper wires, leaving some extra length to avoid incomplete coverage or being too tight.Preheating and heating: Before installing the heat shrink tubing, you can preheat it with a hairdryer or other heating tools, then slide it over the speaker jumper wires, and use the heating tool again to heat the heat shrink tubing until it tightly fits the cables.Cooling and fixing: After installation, let the heat shrink tubing cool naturally to ensure it is securely fixed on the jumper wires. Avoid pulling or squeezing it forcefully to prevent affecting its effectiveness.Regular inspection: It is recommended to regularly check the status of the speaker jumper wires and heat shrink tubing. If there is any damage or looseness, replace or repair it promptly to maintain the good condition of the speaker cables. Actually, the function of heat shrink tubing is far more than just that. If needed, you can also place your own logo on it, and then use a heat gun to fix and shrink it, which is simple and convenient. Note: Sinbosen speaker cables are not sold separately, they are only provided as a service to customers who purchase speakers.

What is a treble membrane? The speaker treble membrane is an important component in the speaker, which is responsible for producing high-frequency sounds. The treble diaphragm is usually a membrane or a vibrator covered by a membrane. Its vibration generates high-frequency sound waves to complete the distribution and reproduction of sound in various frequency bands in the speaker. The main function of the treble diaphragm is to convert electrical signals into sound, where the treble diaphragm requires smaller mass and higher stiffness in order to vibrate in a high frequency range. These characteristics allow the tweeter membrane to produce clear, bright high-frequency audio effects. Common treble membrane materials include: Silk/silk membrane: Silk membrane is one of the common tweeter materials, which can provide soft and clear sound at high frequencies.Polyester film (plastic film): Polyester film is another common tweeter material that can provide good high-frequency response and sound quality.Ceramic Diaphragm: Ceramic diaphragms provide more accurate and detailed treble performance due to their hardness and rigidity.Aluminum or magnesium alloy membrane: Aluminum or magnesium alloy membrane is used in some high-end speakers because of its light weight and high stiffness, which can provide a wider high-frequency response range.Titanium membrane: Titanium membrane is usually used in some professional audio equipment because of its light weight and high strength, which performs well in the high frequency range. The treble membrane plays a vital role in the speaker or speaker system. It is responsible for reproducing high-frequency audio signals so that the listener can hear the treble parts and details in the music. It is an important part of the speaker. If it burns out after being used for a period of time, don’t worry, because it is a consumable product and can be replaced and inspected in time. The main functions of the treble membrane: Reproduction of high-frequency audio signals: The treble diaphragm is the component of the speaker system responsible for reproducing high-frequency audio signals. It can vibrate to produce high-frequency sound waves, allowing the speaker to emit high-pitched tones that are perceptible to the human ear.Complete audio spectrum: The treble diaphragm works together with a bass unit (such as a woofer or midrange unit) so that the speaker system can cover the entire audio spectrum. The treble membrane is responsible for reproducing the high frequencies in the music, thereby presenting a complete and balanced sound to the listener's ears.Sound quality and detailed performance: The performance of the treble membrane directly affects the sound quality and detailed performance of the speaker. A high-quality treble membrane can accurately reproduce high-frequency details in music, including the treble part of musical instruments, the clarity of vocals, and other high-frequency sound effects.Sound field positioning and sense of space: The treble part plays a key role in sound field positioning and sense of space. Through the high-frequency information reproduced by the treble membrane, the listener can perceive the position and direction of the sound source in space, thus enhancing the immersion and reality of the music.Balance of the speaker system: The treble diaphragm works together with other audio units in the speaker (such as the midrange unit and woofer unit) to coordinate and produce a balanced sound output. A good treble membrane design can ensure the balance and coordination of the entire speaker system in different frequency bands, providing a more natural and realistic music experience.

Sinbosen D series digital power amplifier is 1U ultra-thin, novel in appearance, lightweight, has a high-definition LCD screen and real-time temperature display. It can be connected to speakers and is suitable for various occasions such as touring performances and bars.The wide voltage of 90V-270V makes it suitable for almost every country and widely used. The stable and reliable 2Ω driving capability is perfect for line array speaker systems.Among them are the D4-2000 (DSP) that can be used with line array speakers and the high-power amplifier D2-4200 that is perfect for subwoofers, bringing reliable sound.D series power amplifiers can be selected with or without DSP modules. The DSP amplifier adopts German ALLDSP system. Available for Windows, Mac and iOS systems. The following is a comparison table of product limiting setting parameters of D series DSP amplifiers： Remind: During adjust the limiter value of the DSP， when the yellow indicator light of the power amplifier does not light up,  then the value is correct. Contact Sinbosen Sitio web: http://www.sinbosen.com/Whatsapp: https://api.whatsapp.com/send?l=en&phone=8613342806188Facebook: https://www.facebook.com/sinbosenamplifier/Correg electronico: sales7@sinbosen.com D4-2000 DSP 2000W @8ohms Class D Professional Audio Amplifier D4-2000 dsp software control 4 channel 2 ohms stable 4760W high power amplifier professional for full range,line array speaker! D4-3000 DSP Professional High Power 4 channel Digital Amplifier D4-3000 dsp software control 4 channel 2 ohms stable 6500W high power amplifier professional for full range,line array speaker! D2-3500 DSP 2 Channel 2 ohms Professional Stage Digital Audio Power Amplifier Digital amp have become the trend of the entire industry and frequently appear on the large stage!D series also born for this! D2-4200 DSP 4200W @8ohms High Power Subwoofer Amplifier D2-4200 dsp software control 2 channel D series 2 ohms stable 8500W high power amplifier professional for stage performance!

Gallium nitride power tube is a new type of electronic component that is very suitable for some audio applications that require high performance, high efficiency and high power output. Sinbosen has also applied this material to its D series digital power amplifiers, making the performance more stable, reducing noise, and bringing a better sound experience. At present, all the D series digital amplifiers shipped by Sinbosen domestically have been upgraded to gallium nitride materials. However, there are still a few digital amplifiers made of non-gallium nitride materials left in overseas warehouses. Please pay attention to the distinction when placing orders. Non-GaN GaN Silicon MOSFETs have historically been the switching transistor of choice for Class D systems. Although their amplifiers were more efficient, they were plagued by heavy distortion due to imperfect switching, high on-resistance, and very high stored charge. These charges dissipate power and cause ringing, resulting in greater distortion. Limitations of silicon MOSFETs in audio equipment: High switching losses: When a MOSFET turns on or off, it experiences a brief period of high power consumption. These switching losses reduce efficiency and increase heat. In Class D audio systems, high switching losses reduce output power and overall system efficiency.Bandwidth Limited: The switching performance of silicon MOSFETs limits the switching frequency of the output power stage. This limitation reduces efficiency and output power.Thermal limitations: Silicon MOSFETs generate significant amounts of heat in high-power Class D audio systems. To overcome this limitation, many designers use large heat sinks, which increases the size, weight, and cost of the system.Gate drive constraints: The gate drive voltage must be fast and accurate to ensure efficient switching. In Class D audio systems, the limitation of gate drive is that the gate turns on slowly, thereby reducing efficiency and increasing distortion. What is GaN semiconductor? Gallium nitride (GaN) is a very hard, mechanically stable binary III/V direct band gap semiconductor. GaN-based power devices are significantly superior to silicon-based devices due to higher breakdown strength, faster switching, higher thermal conductivity and lower on-resistance. Why do audio devices use gallium nitride materials? GaN devices can operate at high temperatures above 200°C, can carry higher energy density, and are more reliable; the larger bandgap width and insulation destruction electric field reduce the on-resistance of the device, which is beneficial to improving the overall energy efficiency of the device; The fast electron saturation speed and high carrier mobility allow the device to operate at high speed. Advantages of audio amplifiers using gallium nitride devices: Faster switching speed: Gallium nitride devices have higher electron mobility than silicon devices and therefore switch faster than traditional silicon MOSFETs, reducing switching losses and improving overall efficiency. Higher switching frequencies allow more precise control of the output waveform, resulting in lower distortion, higher fidelity, higher bandwidth and faster transient response.Lower on-resistance: Because gallium nitride devices have a wider bandgap than silicon devices, GaN FETs have significantly lower on-resistance and conduction losses compared to traditional silicon MOSFETs, resulting in lower power consumption and achieve higher output power. This allows amplifiers to be more efficient, require less cooling and be smaller in size.Reduced component count: Designs using GaN devices with higher switching frequencies can use fewer, lower-cost external components compared to traditional silicon-based designs, simplifying amplifier design and reducing overall cost.Lower distortion: GaN FETs have lower parasitic capacitance and inductance, reducing distortion and improving overall fidelity.Smaller form factor: GaN devices are smaller than silicon devices at the same performance specifications, allowing for smaller, more compact amplifier designs.

What do speaker power and sensitivity mean? Power: The power of a speaker refers to the maximum power output it can withstand. Usually expressed in units of watts (W). Higher power means the speaker can produce stronger sound over a wider volume range. When choosing the speaker power suitable for your scene, you need to consider the size and purpose of the venue. Generally speaking, larger performance venues may require higher wattage speakers, while smaller scenes may require lower wattage speakers. Sensitivity: The sensitivity of a speaker refers to the sound level that the speaker can produce when receiving the same input power. It is usually expressed in units of decibels (dB). Higher sensitivity means the speaker can produce higher sound levels with lower input power. When choosing speaker sensitivity, you need to consider the noise level of the venue and the volume of the desired sound. To choose the speaker power and sensitivity that suits your scenario, you need to consider the following factors: Venue size: Large venues may require speakers with higher power to ensure coverage and volume requirements. Smaller venues may be suitable for lower powered speakers.Purpose: The power and sensitivity of a speaker also depend on its purpose. For example, concerts and large events often require high-power and high-sensitivity speakers, while smaller performances and conference rooms can use speakers with lower power and sensitivity.Volume requirements: Determine the volume level of the required sound to determine whether the selected speaker power can meet the requirements. For example, loud music performances often require high-powered speakers to produce sufficient volume.Sound quality requirements: Not only do you need to consider power and sensitivity, but you also need to ensure that the speakers you choose can provide the required sound quality. Higher power does not necessarily mean better sound quality, so it's important to fully evaluate and listen to the speaker's performance and sound quality. Take Sinbosen speakers as an example KA-1KA-2KA-3KA208 Type 3-way,dual 15" line array 3-way,dual 12" line array 2-way,dual 12" line array 2-way,dual 8" line array Power Handling LF:2X600W, MF:600W, HF:220W LF: 2 x 500W MF:320W HF: 160 W LF: 2 x 500 W HF: 140 W LF: 450 W HF: 80 W Maximum SPL 149 dB 147 dB 143 dB 142 dB KA-1 and KA-2 have high volume output and carrying capacity, and can provide powerful and deep bass performance. Ideal for large indoor and outdoor events such as concerts, concerts, large-scale performances, etc. It can meet the music needs of the scene and ensure that the music has extensive and strong coverage at the event site.KA-3 and KA208 line arrays have smaller output capabilities and sensitivity, and are suitable for some small and medium-sized indoor and outdoor activities, such as small parties and performances, etc., bringing a better live sound experience. Sinbosen High-grade pa speaker dual 15 inch 3 ways line array speakers outdoor professional event KA-1 made of waterproof, temperature-resistant, high-quality sound materials, and some humanized details are added! Sinbosen High-grade pa speaker dual 12 inch 3 ways line array speakers outdoor professional event KA-2 made of waterproof, temperature-resistant, high-quality sound materials, and some humanized details are added! Sinbosen High-grade speaker dual 12 inch 2 ways line array speakers outdoor professional event KA-3 made of waterproof, temperature-resistant, high-quality sound materials, and some humanized details are added! KA208 Line array dual 8 inch passive speaker pa system KA208 Line array dual 8 inch passive speaker pa system

What is the AES/EBU input function of audio? AES/EBU input is a digital audio input interface used to transmit digital audio signals between audio devices. AES/EBU is a standard that stands for Audio Engineering Society/European Broadcasting Union. AES/EBU interfaces usually use XLR connectors and use balanced differential signaling. This kind of interface can be found in professional audio fields, such as audio workstations, digital audio processing equipment, digital mixers, and digital audio recording equipment.In the AES/EBU input, the digital audio signal is transmitted differentially through two independent wires, carrying the normal phase and reverse phase signals respectively. This transmission method helps reduce interference and improve the anti-interference ability of the signal. Advantages of audio equipment using the AES/EBU interface: High-quality digital audio transmission: The AES/EBU interface provides high-quality digital audio transmission, suitable for professional audio production and recording. Through differential signal transmission, it can provide a higher signal-to-noise ratio and lower distortion, allowing the audio signal to maintain high fidelity during transmission.Anti-interference performance: Using balanced differential transmission, the AES/EBU interface has good anti-interference performance against electromagnetic interference (EMI) and radio frequency interference (RFI). This enables audio signals to be transmitted more reliably in complex electromagnetic environments and reduces the impact of external interference on audio quality.Standardization and interoperability: The AES/EBU interface is an international standard, which means devices that comply with the standard can connect to each other and users can expect good interoperability between them. This standardization promotes more seamless integration between audio equipment from different manufacturers.Supports multiple sample rates and resolutions: AES/EBU interfaces typically support multiple sample rates and bit depths, making them suitable for a variety of audio applications, from high-fidelity music recording to professional film production.Reliability and Stability: The AES/EBU interface is designed to provide reliable digital audio transmission. By using standards recognized by the professional audio industry, this interface delivers stable, consistent performance, reducing the risk of signal interruption and distortion.Flexibility: The design of the AES/EBU interface allows connections between different audio devices, providing audio system flexibility. This allows users to build multi-channel audio systems while maintaining high-quality digital audio transmission. Sinbosen product model with AES/EBU input function: LA12XSinbosen product models with AES input function: new DSP amplifiers, such as DSP-10Q, DSP-20Q, etc. Website: http://www.sinbosen.com/Whatsapp: https://api.whatsapp.com/send?l=en&phone=8613342806188Facebook: https://www.facebook.com/sinbosenamplifier/Correg electronico: sales7@sinbosen.com

What are the advantages of polyurethane paint? Polyurethane paint is a high-performance coating that has strong weather resistance and can withstand the erosion of ultraviolet rays and climate changes. It has good chemical resistance and can resist acid, alkali, and corrosive chemicals. It has strong wear resistance and can withstand friction and abrasion. It has good water resistance and is suitable for humid environments. It has high adhesion and can tightly bond with various substrates. It has good workability and is easy to apply to form a smooth coating. These advantages make polyurethane paint widely used in the fields of construction, automotive, marine, industrial equipment, and more. Why do speakers use polyurethane paint? Firstly, polyurethane paint has excellent durability, which can protect the speaker's casing, resist scratches, wear and chemical corrosion, and extend the lifespan of the speaker. Secondly, the high glossiness and color stability of polyurethane paint can enhance the appearance and visual effects of the speaker, giving it better quality and attractiveness. Additionally, using polyurethane paint on speakers can also provide waterproofing, protecting the internal electronic components from moisture and liquid damage. Lastly, polyurethane paint offers a wide range of color choices, allowing manufacturers to design personalized speaker appearances according to market demand and consumer preferences. What are the advantages of using polyurethane paint for speakers? ●Good wear resistance and durability, able to resist scratches, abrasion, and chemical corrosion in daily use, protecting the speaker casing from damage and extending the lifespan of the speaker.●Specially formulated polyurethane coatings for the surface of speakers, including noble and elegant surface granules, with strong decorative effects, and customizable colors for personalized equipment.●Prevents color fading and surface yellowing caused by sunlight radiation. Especially for outdoor speakers, as they are more susceptible to sun exposure.●Excellent moisture and dust resistance, preventing moisture, dust, and other pollutants from entering the interior of the speaker, protecting internal electronic components from damage and ensuring stable sound quality of the speaker. Is polyurethane paint environmentally friendly? Polyurethane paint is a coating that is solvent-free or has low volatile organic compound (VOC) emissions, resulting in lower emissions of volatile organic compounds during use. Additionally, polyurethane paint typically does not contain lead, heavy metals, or other harmful substances, making its impact on the environment and health relatively small. How to protect the polyurethane paint finish of the speaker？ Avoid exposing the speaker to strong sunlight to prevent color fading and surface discoloration. Secondly, regularly clean the speaker to prevent dust and dirt from damaging the paint finish. Also, be careful to avoid using cleaning agents that contain acidic or corrosive ingredients to prevent damage to the coating.

Have some questions about Sinbosen amplifiers? Which amplifiers can be used for 2ohms? Among all Sinbosen power amplifier series, only the D series can be used for 2ohms. Many customers use FP series and K series at 2ohms, which will cause overload and overheating of the power amplifier, which may cause damage to the output stage and other circuit components of the power amplifier. The design and specifications of the power amplifier are usually determined based on a specific load impedance to ensure its stable operation and the safety of the protection circuit. If the load impedance is lower than the minimum impedance specified by the power amplifier, the power amplifier will not be able to effectively control the flow of current to the load. Can I use a subwoofer with the K series? The K series power amplifiers are Sinbosen's low-power digital power amplifiers. The most powerful one is the K4-1700. Many customers think that 1700 watts can drive a subwoofer, but in fact they cannot connect a subwoofer. If the output power of the power amplifier is too small to meet the requirements of the subwoofer, it will cause the internal circuit of the power amplifier to be short-circuited or damaged. So be sure to note that all Sinbosen K series cannot be connected to a subwoofer. If your speakers are subwoofers, please buy other series of power amplifiers, such as high-power DS-20Q, DS-22Q and D series D4-3000, D2-4200, etc. What is the difference between K series power amplifiers and D series power amplifiers? Both series are Sinbosen's best-selling digital power amplifiers, but the biggest difference between the K series power amplifiers and the D series power amplifiers is that the D series power amplifiers can be used for 2ohms, while the K series power amplifiers cannot be used for 2ohms. The sound of D series will be stronger than that of K series, so the subwoofer can be pushed with high power. The K series has a very high cost performance and is suitable for line array and full-range speakers. Both series of power amplifiers can be used as DSP power amplifiers with the same power, directly connected to speakers and computer control parameters. Which places are Sinbosen amplifiers suitable for? Sinbosen is a professional manufacturer of stage audio equipment, specializing in providing amplifiers, speakers and other audio equipment for some large-scale performances. It can be used in stage performances, bars, large living rooms, weddings, churches and other music venues. In addition to power amplifiers, what other products does Sinbosen have? In addition to amplifiers, Sinbosen also provides professional stage speakers (including line array speakers and subwoofers), microphones, processors and other audio equipment. If you need a set of stage speakers to prepare for your event, you can also send a request and Sinbosen will provide a complete solution to save you time. If you have some other questions about Sinbosen, please contact the Sinbosen team and we will answer you as soon as possible.

JT-08, VT-08 and YT-08 are three professional stage line array speakers launched by Sinbosen. Constructed with high-quality compact birch shell, first-grade Russian birch plywood and multi-layer spray-on polyurea waterproof coating, high-quality imported neodymium magnetic speakers with multi-layer weatherproof finish to withstand the most demanding portable applications. Delivers excellent sound quality, coverage and reliability. These three line arrays are completely different. In terms of size, the JT-08 (dual 12-inch line array) is the largest, followed by the VT-08 (dual 10-inch line array), and the YT-08 (dual 8-inch line array) is the smallest. In terms of appearance, the back of the JT-08 is completely different from the other two line arrays, and the side handles are also different, making it easy to distinguish. On the other hand, the VT-08 and YT-08, apart from the difference in size, have very similar designs. It is difficult to differentiate them by placing their front and back views together, so it is necessary to find their differences in detail. Detail 1 VT-08 has an aluminum plate on the upper panel, but YT-08 does not. Detail 2 VT-08 has 3 small holes, YT-08 only has 2 small holes JT-08 is a compact line array speaker with a precision-designed interlocking mechanism for convenient and fast line array arrangement and high-efficiency dynamic sound projection. Suitable for small to medium-sized application scenarios, including concerts, stage performances, and conferences.VT-08 is a medium-sized line array speaker with high power output, which can provide larger audio coverage, balanced sound quality and wide dynamic range. Suitable for large-scale indoor and outdoor events, such as music festivals, sports events and large-scale performances.YT-08 is a lightweight and portable medium-sized line array speaker. It is small in size and light in weight, making it easy to carry and install quickly. The unique cam mechanism and tilt angle options allow the speaker to be easily installed in various positions. Suitable for application scenarios that require more flexible installation and portability. JT-08  VT-08 YT-08 ConfigurationLarge format 3-way line array loudspeaker High performance 3-way passive line array loudspeaker High performance 2-way passive line array loudspeaker Frequency response (-5 dB standard)48 Hz - 17 kHz 48 Hz - 17 kHzHz 54 Hz - 19 kHz Maximum SPL145dB142dB139 dBNominal impedance6 Ω (LF) / 12 Ω (MHF)8 Ω8 ΩSplay angle settings0 - 7° (1° increment)0° - 14° (1° increment)0° - 14° (1° increment)Components2 x 12" driver / 1 x 10" driver2 x 1.4" exit compression driverpassive crossover network2 x 10"   neodymium driver / 1 x 8" driver2 x 1.4" exit compression driver2 x 8" driver with neodymium magnet1.4" exit compression driverpassive crossover networkConnections2 x NLT4 F/Moptional 2 x EP5 or 2 x NL82 x NLT4 F/Moptional 2 x NL42 x NLT4 F/Moptional 2 x NL4 or 2 x EP5Dimensions (H x W x D)360 x 1100 x 570 mm14.2 x 43.3 x 22.4"310 x 700 x 460 mm12.2 x 27.5 x 18"257 x 630 x 375 mm10 x 24.8 x 14.8" Weight60 kg/132 lb 34 kg/75 lb 20 kg/44 lb Related Products Sinbosen High quality 3-way double 12 inch line array speaker loudspeaker outdoor professional event High quality neodymium magnetic horn, housing waterproof, sunscreen, anti-corrosion wear-resistant coating. 3 way dual 10 inch audio line array speaker VT-08 is coated with polyurea paint, which is waterproof, high temperature resistant. Dual 8 inch 2-way passive line array speaker professional Professional 2-way passive neodymium magnetic outdoor stage performance event line array speakers.

What is the gain of a speaker? Gain is used to amplify the signal entering the audio device circuit, and the process of adjusting the gain value is used to adjust the strength of the input signal in the preamp section. Generally speaking, the higher the gain, the louder the sound, but it is also prone to noise and distortion. What is the function and impact of Gain? 1. Volume controlGain can be seen as the "knob" for audio signals, allowing us to control the volume of the audio signal. This is useful for balancing the volume of different audio sources and adjusting the output of the sound system according to different environmental needs.2. Dynamic range managementThe dynamic range of an audio signal refers to the difference between the maximum and minimum amplitudes in the signal. By adjusting the Gain, we can expand or shrink the dynamic range of the audio signal, thereby affecting the expressiveness and realism of music or movies.3. Balancing multi-channel systemsIn a multi-channel sound system, each speaker typically plays a specific frequency range or channel. Properly adjusting the gain of each speaker can balance the sound performance of the entire system, ensuring that the outputs of each speaker match each other and maintain good sound balance and equilibrium.4. Signal-to-noise ratioThe setting of gain also affects the signal-to-noise ratio of the sound system. Setting the gain too high may increase the system's noise level relative to the signal, affecting the performance of the signal-to-noise ratio. Therefore, it is important to balance the signal strength and noise level in gain adjustment to achieve the best signal-to-noise ratio effect. Note: If the gain is set too high, the signal-to-noise ratio will decrease, resulting in more prominent background noise. It can also cause clipping distortion due to current output limitations. These phenomena are commonly referred to as overload or overloading. If the system operates in an overloaded state for a long time, it will shorten the lifespan of the equipment and increase the failure rate. Therefore, we cannot use gain as a measure of volume. Tips for Properly Adjusting Gain: 1. Balance input signals: Before adjusting the gain, ensure that the volume of all input signals is balanced. This will prevent certain signals from being too prominent or going unnoticed.2. Understand input and output signals: Prior to adjusting the gain, understand the strength of the audio input signals and the power requirements of the speakers. Based on the signal strength and requirements, choose an appropriate gain setting.3. Start with a lower gain setting: Set the gain to a lower initial value to avoid excessive gain. This will prevent overload and distortion before increasing the gain. Begin with the initial value and gradually increase the gain while monitoring the output sound of the speakers in real-time.

What are the different configurations for the KA15 line array? 2-way 15-inch line array KA15 utilizes advanced acoustic technology to provide realistic sound reproduction, enhancing music, speeches, and sound effects. With high sound pressure levels, it meets the demands of large audiences while maintaining clear and low distortion sound. It offers a wide audio coverage range, capable of covering audience areas, ensuring every listener can enjoy relatively even sound. The adjustable angle allows for customization according to specific venue requirements. This makes it suitable for various applications, whether indoor or outdoor. Installing the KA15 line array speakers on both sides of the stage provides even sound distribution, meaning that the audience can hear relatively consistent sound quality throughout the coverage area. This helps ensure that there are no obvious dead spots or areas of excessive amplification. Hanging them on the sides of the stage minimizes the use of stage space to the maximum extent. This provides more freedom of space for performers and other equipment, and reduces the complexity of equipment placement. The configuration of 1+1 is easier to transport and set up, making it particularly suitable for occasions that require frequent movement of sound systems. At the same time, it integrates the components of the sound system into a smaller space, reducing the footprint of the system. The KA21 subwoofer is usually portable, and the KA15 line array speaker is relatively lightweight, making it easier to carry and install. When used in combination, the KA15 line array speaker and the KA21 subwoofer can achieve deeper and stronger bass response. By suspending the KA15 on the KA21, the sound source is closer to the ground, reducing the impact of floor reflections on sound quality. This can help improve the clarity and resolution of the sound. The KA15 is stacked on top of the KA21, and the combination of two KA21 subwoofers and the KA15 provides a deeper and more powerful bass effect, enhancing the low-frequency response of the sound system. This helps achieve a more even distribution of sound, reducing dead spots or areas with uneven sound in the audio system. The audience will be able to enjoy a more consistent sound throughout the coverage area. This setup allows for higher sound output and a larger sound coverage range, making it suitable for large events and occasions that require powerful sound.

The A15 Focus and Wide enclosures are made of high-quality Baltic birch plywood and birch plywood to ensure maximum acoustic and mechanical integrity. The use of curved wood technology combined with thickness optimization greatly reduces weight and ensures that the cabinets are sturdy and acoustically optimized. Each enclosure features ergonomic handles, bottom ground rails, matching top tracks, and corner protectors to protect the side panels during transportation. The A15 products can be combined for hanging or stacking to form vertical or horizontal line sources, or used individually as configurable directional point sources. The highly versatile series includes the A15 Focus and A15 Wide passive 15-inch systems with unique coverage patterns. The combination of A15 Focus and A15 Wide can be flown or stacked to form a vertical line source. The A15 Focus can also be used individually as a configurable direct point source for front fill or delay applications that require narrow coverage. The A15 can accommodate almost any audience geometry and offers two options for shell coverage (10° or 30°). Panflex allows users to configure the waveguide directivity (70°, 110°, or 90° asymmetrical) and a range of vertical or horizontal deployment accessories. The main difference between A15 focus and A15 wide is the vertical coverage angle. 10° Vertical Coverage Angle:Narrow coverage range: A 10° vertical coverage angle means that the sound from the speaker will be highly concentrated in the vertical direction, covering only a very narrow area.Suitable for long-distance projection: A 10° angle is suitable for situations where the sound needs to be accurately projected to a distant target, such as outdoor concerts or stadiums.30° Vertical Coverage Angle:Wider coverage range: A 30° vertical coverage angle means that the sound from the speaker will have a wider dispersion in the vertical direction, covering a broader area.Suitable for close-range use: A 30° angle is suitable for occasions where a wider area needs to be covered, such as small concerts, conference rooms, or indoor events. The appropriate vertical coverage angle depends on the specific needs of the venue. A narrower angle is suitable for situations that require long-distance projection and precise sound positioning, while a wider angle is suitable for situations that require coverage of a broader area. The selection of the appropriate line array speaker is typically based on the characteristics of the venue and the requirements of the event, in order to ensure that the audience receives the best sound quality and coverage range. A15 FOCUS  A15 WIDE Description 2-way passive constant curvature WST 10° 2-way passive constant curvature WST 30° Usable bandwidth (-10 dB) 41 Hz - 20 kHz 42 Hz - 20 kHz Maximum SPL1 144 dB 141 dB Nominal directivityEnclosure: 10°Panflex: 70°/110° symmetric or 90° asymmetricEnclosure: 30°Panflex: 70°/110° symmetric or 90° asymmetricTransducersLF: 1 × 15"neodymium cone driverHF: 1 × 3" diaphragm neodymium compression driverNominal impedance8 ΩConnectorsIN: 1 × 4-point speakONLINK: 1 × 4-point speakONRigging and handlingFlush-fitting two-point rigging system2 handles, 8 corner stops and 2 ground runnersCabinetPremium grade Baltic beech and birch plywoodRigging componentsHigh grade steel with anti-corrosion coatingWeight (net)35 kg/77 lb33 kg/73 lb

As one of the core components of audio equipment, capacitors play a vital role in power amplifiers. Capacitors can filter and store electrical signals of different frequencies, effectively improving the audio performance of the power amplifier. Good capacitor selection can reduce the total harmonic distortion of the power amplifier, improve the signal-to-noise ratio, suppress power supply interference, etc., and ensure the accurate transmission of audio signals. Advantages of Nichicon capacitors:Nichicon capacitors are well known in the industry for their excellent quality and reliability. The following are several significant advantages of Nichicon capacitors when used in power amplifiers:- High durability: Nichicon capacitors undergo strict quality control and testing and have excellent durability, able to maintain stable performance under long-term use and high temperature environments.- Low ESR and low distortion: Nichicon capacitors have low equivalent series resistance (ESR), which can reduce the output resistance of the power amplifier and reduce the distortion of the power amplifier output, providing a purer and more realistic audio signal.- Wide frequency response characteristics: Nichicon capacitors have excellent performance and stable capacitance values in different frequency ranges, and can accurately transmit various audio signals to ensure high fidelity of sound quality. Advantages of NCC capacitors:NCC Capacitors, another well-respected manufacturer, also provides excellent capacitor selection for power amplifiers. The following are several characteristics of NCC capacitors:- High-quality materials: NCC capacitors use high-quality dielectric and metal foil to ensure high stability and reliability of the product.- Low ESR and low distortion: NCC capacitors have low equivalent series resistance (ESR) and distortion, providing excellent sound quality and audio resolution.- Diversified product series: NCC capacitors provide a variety of types and specifications of products to meet the needs of different power amplifier applications. Advantages compared with other ordinary capacitors:Compared with ordinary capacitors, Nichicon and NCC capacitors have obvious advantages in the following aspects:- Better quality and signal transmission: Nichicon and NCC capacitors use high-quality materials, which can transmit audio signals more accurately and provide higher fidelity sound performance.- Lower distortion and noise: Nichicon and NCC capacitors have low ESR and low distortion characteristics, which can effectively reduce the distortion and noise of the power amplifier, providing a clearer and more realistic sound quality experience.- Better durability and stability: Nichicon and NCC capacitors have undergone strict quality control and testing, have high durability and stability, and can maintain excellent performance under long-term use and harsh environments.- Wider adaptability: Nichicon and NCC capacitors provide diversified product series and specifications to meet the needs of different power amplifier applications. Whether it is audio equipment or stage sound systems, you can find suitable capacitor solutions.

Complete audio system solutions for new customers Q1: Do you plan to use the sound system indoors or outdoors? A1: This question is very important for choosing a suitable sound system, because the indoor and outdoor environments have a great impact on the transmission and diffusion of sound. Indoor environments may require more control and balance, while outdoor environments require greater output and dispersion. Please tell us your usage scenario so that we can provide you with a more accurate solution. Q2: Do you have any special requirements for sound quality? A2: Some customers attach great importance to sound quality and may want high-fidelity sound quality or professional-grade audio equipment. Please let us know your sound quality, power, and feature requirements so we can find the perfect sound system for you. Q3: Approximately how many people attend your performance or how big is the venue? A3: The number of performers or the size of the venue has a great impact on the choice of sound system. Please tell us approximately how many people will be attending the show or the size of the venue so we can provide you with a suitable sound system that ensures clarity and dispersion of the music. We can also provide you with more precise solutions based on various parameters of the site, such as sound absorption and reflection characteristics. Q4: Do you need to divide the sound system into multiple groups? A4: If you plan to use a line array sound system, grouping may be necessary. Please tell us your needs, we will determine the number of groupings of the sound system according to your requirements, and ensure that the number of hanging parts meets your requirements. We can also supply other types of sound systems to suit different layouts and installation needs. Q5: When is your performance approximately? A5: The time of your performance is critical to scheduling your sound system purchase or rental. Please let us know when your show is scheduled so we can provide you with a suitable solution to ensure your sound system is delivered and installed in the time you need. We can also provide you with technical support and supporting services to ensure your performance goes smoothly. Q6: Do you have any limitations on the budget range of your sound system? A6: Budget is an important consideration and we need to understand the scope of your investment in the sound system. Please tell us your budget range so we can provide you with a solution that fits your budget. We will work hard to provide high quality sound systems and related equipment within your budget. D2-4200 DSP 4200W @8ohms High Power Subwoofer Amplifier D2-4200 dsp software control 2 channel D series 2 ohms stable 8500W high power amplifier professional for stage performance! Sinbosen FP20000Q 4000 watt 4 channel professional bass power amplifier dual 18 inch subwoofer One FP20000q amplifier can use with 4 pcs 18-inch subwoofer Perfect bass sound quality Light and durable, easy to carry. Double 18 inch subwoofer KS28 super bass for outdoor indoor event The KS28 takes bass performance to a whole new level. Frequency band below 25Hz with excellent low frequency resolution. Dual 10 inch line array and active 18 inch subwoofer speaker system 3pcs KA10 line array and 1pc KA18 18 inch subwoofer.