FAQ about Power Amplifier

To protect the rights of customers, Sinbosen conducts electromagnetic vibration testing on each amplifier before shipment. Electromagnetic vibration testing is a test method used to evaluate the reliability and durability of products in a vibration environment. It tests the structural strength and functional stability of the product by simulating various vibration conditions that the product may encounter during transportation, installation and use. Working Principle Electromagnetic vibration testing is usually performed using an electromagnetic vibration tester. The device generates vibrations through electromagnetic force and transmits the vibrations to the vibration table. The vibration table is used to place the product to be tested, and the product is vibrated by the movement of the vibration table. The core component of the electromagnetic vibration tester is the electromagnetic exciter. When current passes through the coil, a magnetic field is generated around it, which interacts with the permanent magnet in the vibration table to generate a torque, thereby driving the vibration table to reciprocate. Purpose Evaluate equipment performance: Through electromagnetic vibration testing, the performance of the power amplifier under electromagnetic interference and mechanical vibration environments can be comprehensively evaluated, including audio output quality, signal stability, and equipment stability, etc., providing an important basis for product performance evaluation. Discover potential problems: During the test, potential problems that may occur in the power amplifier under electromagnetic interference and vibration environments, such as insufficient electromagnetic compatibility and loose structural connections, can be discovered, and improvements and optimizations can be made in a timely manner to improve product quality and reliability. Guide product design and improvement: The test results can provide guidance for product design and improvement, helping engineers understand the performance of power amplifiers in different environments, thereby optimizing circuit design, improving structural layout, enhancing electromagnetic shielding, etc., and improving the overall performance of the product. Ensure product compliance: Through electromagnetic vibration testing that complies with relevant standards, ensure that the power amplifier products meet market access requirements, can successfully pass safety certification and quality inspections, enter the market for sales, and meet the needs of consumers and professional stages. Importance Ensure equipment reliability: Stage amplifiers are subject to various electromagnetic interferences during use, such as wireless signals, radiation from other electronic devices, etc. Electromagnetic vibration testing can simulate these interference environments, detect the performance of the amplifier under electromagnetic interference, and ensure that it will not fail or degrade due to electromagnetic interference in actual use, thereby ensuring the reliability of the equipment. Improve sound quality stability: Electromagnetic interference may affect the transmission and processing of audio signals of the amplifier, resulting in problems such as sound quality distortion and increased noise. Through electromagnetic vibration testing, the sound quality performance of the amplifier under electromagnetic interference can be detected to ensure that it can provide stable sound quality output in various electromagnetic environments and meet the high requirements of professional stage for sound quality. Extend equipment life: Vibration testing can simulate the mechanical vibration that the amplifier may encounter during transportation, installation and use, and detect the stability and durability of its structure. Through vibration testing, the weak links of the equipment under vibration environment can be found and improved, thereby extending the service life of the equipment. Comply with safety standards: Electromagnetic vibration testing is an important part of amplifier safety testing, and complies with relevant international and national standards, such as IEC 62368-1, etc. It is a necessary step to ensure product safety and compliance. Through testing, the safety performance of the amplifier can be ensured in various electromagnetic environments and vibration conditions, avoiding safety accidents caused by electromagnetic interference or structural failure. Providing customers with high-quality products and services has always been Sinbosen's purpose and pursuit. We firmly believe that good products should be recognized by customers and achieve win-win cooperation with customers.

Single-phase and three-phase are two common power supply methods in power systems. The main difference between them lies in the number of phases of the power supply and the phase of the voltage. Single-phase: A single-phase power supply system contains only one AC phase and is usually used for home and small commercial electricity. In a single-phase system, the voltage and current have only one phase, that is, there is only one AC waveform. A single-phase power supply system usually uses two wires, one is the phase line (also called "live wire" or "live wire"), and the other is the neutral line (also called "zero line"). A single-phase power supply system can provide a voltage of 220V (mainland China, Europe, etc.) or 110V (United States, Japan, etc.). Three-phase: A three-phase power supply system contains three AC phases, and the phase angle between each phase differs by 120 degrees. In a three-phase system, the voltage and current have three phases, and the waveforms of each phase are staggered by 120 degrees from each other. Three-phase power supply systems usually use four wires, three of which are phase wires (also called "live wires" or "live wires", corresponding to three phases), and the other is a neutral wire (also called "zero wire"). The three-phase power supply system can provide a voltage of 380V/220V (mainland China, Europe, etc.) or 208V/120V (USA, etc.). The three-phase power supply system is usually used for industrial and commercial electricity because the three phases can balance the load, which can provide greater power and higher efficiency. The three-phase power system is usually used in industrial and commercial scenes that require high power, but sometimes in some specific cases, it is necessary to convert three-phase electricity into single-phase electricity for use by specific equipment. The three-phase power supply can be converted to single-phase power supply by connecting the appropriate winding configuration of the transformer. Specifically, any two phases of the three-phase transformer can be connected together as a common neutral line, and the remaining third phase is output as a single-phase power supply. In this way, the original three-phase electricity is converted into single-phase electricity. Three-phase electricity contains three phases, and there is a time difference between the voltages of each phase. Single-phase electricity has only one phase. In some application scenarios, the device may only need a single-phase power supply, or one phase of the three-phase power supply may have a voltage difference with the other two phases, and a separate power supply process is required. In this case, the conversion from three-phase to single-phase becomes particularly important. The following is the connection method of Sinbosen LA cabinet LAS4+8 three-phase to single-phase

Neutrik Interface is a series of professional connectors and interface products produced by Neutrik, focusing on providing high-quality connection solutions in the fields of audio, video, lighting, power supply and data transmission. Advantages of Nutrek interface Exquisite craftsmanship and excellent quality: Neutrik audio connectors are world-renowned for their exquisite craftsmanship and excellent quality. From material selection to manufacturing, every link is strictly controlled to ensure that each product can meet the highest standards.Excellent sound quality and true sound restoration: Neutrik audio connectors use advanced transmission technology and high-quality materials to ensure that the audio signal can maintain a high degree of purity and stability during transmission. Whether it is the clear and bright high frequency or the deep and powerful low frequency, it can be perfectly restored.Wide compatibility: Neutrik audio connectors can easily adapt to various audio devices and interfaces with their wide compatibility. Whether it is professional recording studios, live performances, radio and television or home theaters, you can find suitable products to meet your needs.Innovative design and industry leadership: Neutrik has always been at the forefront of audio connection technology, constantly exploring and innovating. Its unique design concept and advanced manufacturing process not only improve the performance and quality of the product, but also set a new benchmark for the entire audio connector industry.Durability and reliability: Durability and reliability are core features of Neutrik interfaces. They are designed to withstand daily wear and tear in professional use and provide a stable connection.Professional audio interface: The XLR interface provided by Neutrik is a professional audio interface commonly used in high-end audio equipment and high-end microphones such as condenser mics. The XLR interface uses a balanced analog audio transmission method, which can offset interference signals to obtain high-quality analog signals.Locking mechanism: For example, Neutrik's XLR interface uses a locking device, which makes the connection quite reliable. It is generally used to connect microphones to sound cards or speakers, which can ensure the stability of the connection better than ordinary interfaces.Anti-interference ability: Balanced transmission interfaces such as XLR use two channels to transmit signals with the same voltage and opposite phases. The receiving device subtracts the two sets of signals, and the interference signals are offset, thereby obtaining a high-quality analog signal. As an electronic product with many parts and complex circuit design, the selection of accessories is crucial. As a professional audio equipment company, Sinbosen aims to produce high-quality audio equipment, so it chose the internationally renowned brand Nutrex interface to provide better quality assurance.

As an important part of the power amplifier, the power amplifier board may be damaged for various reasons and need to be replaced. The following are some reasons that may cause damage to the power amplifier board: Device aging or damage: After long-term use, the high-power tubes, field-effect tubes, power filter capacitors and thermistors on the power amplifier board may cause electrolyte overflow, burst or breakdown due to aging, causing damage to the power amplifier board. Power supply problem: Unbalanced load of each phase of the power supply line or problems with the power supply line itself may cause the power amplifier to overheat or overload, thereby damaging the power amplifier board. Input signal problem: The input signal is too large or there are distortion problems, such as noise interference, signal attenuation, etc., which will cause the power amplifier to be unable to receive normal audio signals, resulting in output distortion or distortion. Feedback circuit problem: The feedback circuit is an important part of the power amplifier. If there is a problem with the feedback circuit, such as component damage, poor line connection, etc., the power amplifier will not work properly, resulting in output distortion or distortion. Overheating or overload: When the power amplifier is overheated or overloaded, the possible reasons include power supply problems, improper heat dissipation design or excessive input signals. Frequency drift or instability: When the power amplifier has frequency drift or instability, possible reasons include component aging, capacitor or inductor failure, feedback network problems, etc. Electromagnetic interference: The 220V AC power supply is not clean or the amplifier itself has poor filtering, which may cause noise problems, thus affecting the normal operation of the amplifier board. Poor contact: The signal line has poor contact, especially the microphone line, which is prone to poor internal contact due to frequent shaking, causing noise and AC noise. Sinbosen FP series is one of the hot-selling product series, sold to many countries and customers. If the Sinbosen FP series amplifier you purchased is damaged due to other operations and needs an amplifier board, the following is the operation engineering of replacing the amplifier board of the FP series amplifier: Firstly, Take out all of screws on the amplifier board. Secondly, Put the insulation material under the board to avoid short circuit. Distinguish each channel board. A B C D channel Take out the insulation paper There is two more screws on the B and D amplifier board Thirdly, Take out 4pcs cables and one pcs white cable Now our engineer demo for the D channel board replacement Look, Take out 4pcs cables and one pcs white cable Put some tins on four pcs points. Connect with cables by soldering machine. Screw in two pcs screws Important! Put the insulation paper back! Connect with the White cable. Screw in other screws

LA8 LA12X DSP power amplifier wired connection DSP software steps Step 1: Insert the Ethernet cable Step 2: Find the IPv4 address on the computer For example, in the image below, the IPv4 address of this computer is 169.254.5.161 Remember this number, and enter the first 7 digits into the software. Step 3: Enter the IP address into the software. The first 7 digits are the same as the computer. Pay attention to the last three digits, which can be any number between 0-250, but must be different from the last three digits of the computer. Step 4: Enter the password: admin, and you will be successfully connected. Other supplements: If you need to set different input and output signals, there are two common settings below that can be saved to the computer. Setting one: 2 input signals, 4 output signals. Setting 2: 4 input signals, 4 output signals Saving method: Preset - Save - Export - Import

1. Input interface XLR interface: used to receive balanced signals, usually used to connect microphones or other professional audio equipment. Has good anti-interference ability. TRS interface: balanced audio input, can be used to connect musical instruments or audio equipment, with triode connector. RCA interface: usually used to connect unbalanced audio equipment, such as consumer-grade CD players. 2. Preamplifier Operational amplifier (Op-Amp): used to increase the gain of weak signals (such as from microphones or instruments) and increase signal strength. Low-noise types (such as NE5532, OPA2134, etc.) are usually used. Filter circuit: can contain high-pass and low-pass filters to remove unnecessary frequencies. 3. ADC/DAC (Analog-to-Digital Converter/Digital-to-Analog Converter) ADC: In some designs, the input analog signal is converted to a digital signal for subsequent digital processing. DAC: After digital processing, the signal is converted back to an analog signal to drive the speaker. 4. Power amplifier section Power transistor: MOSFET (field effect transistor): high efficiency, fast switching response, suitable for high frequency applications, capable of handling high current. IGBT (insulated gate bipolar transistor): usually used for higher power applications, with superior voltage control capabilities. Drive circuit: PWM (pulse width modulation) module: used to control the switching of power transistors to ensure efficient conversion and minimum distortion. 5. Output transformer (in some designs) Output transformer: may be used in the design to match the output impedance of the power amplifier with the input impedance of the speaker to improve energy transfer efficiency. 6. Output interface Speakon interface: designed for audio equipment, providing safe and reliable connection, commonly used in professional audio systems. Banana plug: commonly used to connect speakers, can be inserted into the output of the speaker, simple to handle, often used in education and laboratory environments. 7. Power supply section Switching power supply module: efficient conversion of AC to DC, often used in TD class amplifiers, because they can provide the necessary power output while maintaining a small size. Filter capacitor: usually use large capacity low ESR capacitors to reduce the high frequency noise of the power supply and provide stable voltage. 8. Heatsink Heat sink: Many amplifier designs include aluminum heat sinks to increase surface area for efficient heat dissipation. Fans: In high power output situations, electric fans provide additional air circulation to help dissipate heat in a timely manner. 9. Protection circuits Short circuit protection: Once a short circuit condition is detected, the output is automatically cut off to protect the amplifier and speakers. Overload protection: Gain is reduced or output is shut down when the power is too high to avoid damage. Temperature monitoring: Temperature sensors can monitor the internal temperature of the amplifier and automatically adjust the power or shut down when overheating. 10. Indicator lights and control panel LED indicator lights: used to indicate power status, signal input status, protection status, etc. Control knobs: usually include gain control, EQ adjustment and selector switches, etc., which can be used to adjust audio parameters. 11. Housing Aluminum alloy housing: light and strong, can prevent electromagnetic interference (EMI) and mechanical damage, while providing good heat dissipation. Internal layout: Reasonable layout of circuit boards and components to reduce signal interference and improve maintainability.

The D series is Sinbosen's best-selling digital amplifier. This series of amplifiers has 2 Ohm stability, wide voltage, uses gallium nitride power tubes, 90V-270V wide voltage operation, can adapt to harsh power grid environments, standby sleep mode, power saving and durability. However, different models of the D series use different capacitor brands. D4-1500, D4-2000, D4-3000 use NIPPON CHEMI-CON Capacitor; D2-4200, D2-3000, D2-3500 use Nichicon Capacitor or NIPPON CHEMI-CON Capacitor; D4-1300 uses Taiwanese capacitors. What are the advantages of Japanese Black Diamond capacitors? Low Equivalent Series Resistance (ESR): Black Diamond capacitors have very low ESR, which helps improve the efficiency and performance of circuits. High Ripple Current Capability: They can handle higher ripple currents, which is particularly important for power supply and amplifier circuits. High Stability: They demonstrate excellent stability and reliability under different temperature and frequency conditions. Excellent Sound Quality: Particularly suitable for audio equipment, they can significantly improve sound quality and are the ideal choice for high-fidelity audio systems. What are the advantages of Nichicon capacitors? High reliability: Nichicon capacitors are known for their high reliability and are suitable for various harsh working environments. High performance: Nichicon capacitors have excellent electrical performance, suitable for high-frequency circuits, power supplies, etc. Long lifespan: High-quality design and materials ensure the long lifespan of the capacitors. Environmentally friendly: Nichicon is committed to producing products that meet environmental standards and reduce environmental impact. Excellent temperature characteristics: Able to operate stably in a wide temperature range, suitable for various industrial and consumer electronic applications. What are the advantages of Taiwanese capacitors? Diversity: Covering various types and specifications of capacitors to meet different application needs. High performance: Superior electrical performance suitable for high-frequency circuits, power supplies, etc. Long lifespan: High-quality design and materials ensure the long lifespan of capacitors. Cost-effective: Typically have a high cost-performance ratio while maintaining high quality. Environmentally friendly: Producing products that meet environmental standards to reduce impact on the environment. Good capacitors can significantly improve the sound quality of stage amplifiers by efficient filtering, coupling, and frequency response adjustments, reducing noise and distortion, and providing clearer, purer, and more stable audio output. Therefore, no matter which model of the Sinbosen D series you choose, it can bring a good sound experience to the stage. D4-3000 Class D amp digital power amplifier 6500W 2 ohms stable 4 Channel Class D Digital power amplifier,Mini 1U size. Suit for Top speaker, full range speaker,Line array speaker. Sinbosen D4-2000 2 ohm stable 4400 watts 4 channels digital 1u digital power amplifier 4 channels class d 1u digital amplifier D4-2000 professional power amplifier. 2 ohms stable amplifier for line array speaker. D2-4200 digital high power stereo subwoofer amplifier D2-4200 2 channel D series 2 ohms stable 8500W high power amplifier professional for stage performance! 1300 watts 2 ohms work stable 4 channel digital power amplifier 4-channel D-Series amplifier provides stable 2-ohm operation for powerful and reliable digital audio performance.

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 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

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.

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.

What is a Class D Power Amplifier? The output transistor stage of a Class D power amplifier operates as an electronic switch and does not have linear gain like other amplifiers. Class D power amplifiers start working by receiving an incoming analog input signal and generating PWM or PDM. It then converts the input signal into a stream of pulses. Therefore, it can be said that a typical Class D amplifier consists of two output MOSFETs, a pulse width modulator and an external low-pass filter to restore the amplified audio. Why upgrade materials? Sinbosen D series digital power amplifiers have been welcomed by customers who need audio since their launch because they are 2 ohm stable and 1U compact and convenient. After purchasing the D series amplifier, many customers expressed satisfaction with its sound and power, and the use results are also excellent. However, due to its high temperature and the fan rotating too fast, some customers think the noise is a bit loud. Therefore, in order to solve this problem, Sinbosen used a new material---gallium nitride in the power amplifier. What is gallium nitride? Gallium nitride is an important semiconductor material with a wide range of applications. It has great potential in the fields of electronics, optoelectronics and optical devices. Because gallium nitride has excellent electronic and optical properties, such as high carrier mobility, wide energy gap, and high electron saturation drift velocity, it is widely used in the manufacture of high-frequency electronic devices, optoelectronic devices, and high-power semiconductor devices. Noise comparison after replacing gallium nitride Advantages of Gallium Nitride The output energy density of gallium nitride materials is higher, and the working environment temperature is also higher. Higher output impedance, high output impedance can make the impedance matching and power combination of GaN devices easier, which can cover a wider frequency range and improve the applicability of RF power amplifier devices.The D series digital power amplifier uses the extremely low switching loss of gallium nitride devices in the zero-voltage switching (ZVS) state to improve the overall system efficiency at low output power. The operation is more stable below 2Ω. In addition, a new gallium nitride material is used on the amplifier board. The temperature is lower when working for a long time, the fan rotates less, and the power amplifier is quieter. D4-3000 Class D amp digital amplifier 6500W 2 ohms stable 4 Channel Class D Digital power amplifier,Mini 1U size. Suit for Top speaker, full range speaker,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! D2-4200 digital high power stereo subwoofer amplifier D2-4200 22 channel D series 2 ohms stable 8500W high power amplifier professional for stage performance! 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!

Note：Our D series DSP amplifer used ALLDSP system from Gemany. It is suit for Windows,Mac and iOs system.The application for iPad or iPhone can be downloaded and installed from the Apple Store. App name: ALLControl, Remind you it is Paid-for Software.For the Remote Operation Software (Windows and Mac) and Manual, Please check Download link:htps://ww.sinbosen.co/oid1739142/Download.htm Software operationStep 1: Close the firewall on your computer. This is crucial to the software connection.How to Turn Off and Disable the Windows 11 Firewall? 1.Select the Start  button Settings  Update & Security  Windows Security and then Firewall & network protection. Open Windows Security settings2.Select a network profile: Domain network, Private network, or Public network.3.Under Microsoft Defender Firewall, switch the setting to On. If your device is connected to a network, network policy settings might prevent you from completing these steps. For more info, contact your administrator.4.To turn it off, switch the setting to Off. Turning off Microsoft Defender Firewall could make your device (and network, if you have one) more vulnerable to unauthorized access. If there's an app you need to use that's being blocked, you can allow it through the firewall, instead of turning the firewall off. https://www.lifewire.com/how-to-disable-the-windows-firewall-2624505 Step 2: Install and open the software, connect with network cable.If you see the Green arrow, that means the amplifier already connected with software. Step 3: Click the Green arrow, you are enter to the first Control page. This is the Main page, you can control the Main Volume, Link function and MUTE here. But you can’t do more operation on the page. Step 4: Enter the password and operate more function.After you enter the password, you can enter to second control page. Here you can control the Crossover (Xover) , limiter, delay, Gain function on input and output and so on.Enter the password: Develo_p Main page Crossover Input Output Note that for a Windows computer, there are separate applications for Windows 32 bit and 64 bit.Attention: You cannot connect the unit to the network through the USB or Ethernet at the same time. You can only control the unit from one platform at the same time- if you switch from one platform to another, you MUST shut down the control software at the previous platform first.Local connectivity of the device to the control computer from a front-panel USB connector is also possible to download initial settings or as a fallback in case of network failure.