HL-38AS active single 18-inch subwoofer and H-50A dual 12-inch three-way active line array system

HL-38AS active single 18-inch subwoofer and H-50A dual 12-inch three-way active line array system

Summary

HL-38AS—a flyable, active single 18-inch subwoofer—and the H-50A—a dual 12-inch, three-way active line array speaker.

HL-38AS active single 18-inch subwoofer and H-50A dual 12-inch three-way active line array system
Sinbosen has recently introduced two new active loudspeaker products: the HL-38AS—a flyable, active single 18-inch subwoofer—and the H-50A—a dual 12-inch, three-way active line array speaker. Both models feature integrated Class-D amplifier modules and DSP processing, designed for demanding applications such as theaters, large-scale indoor and outdoor events, and fixed installations that require high sound pressure levels, consistent coverage, and precise system control.
HL-38AS: A flyable subwoofer designed specifically for the HL-30A line array system
The HL-38AS is a flyable subwoofer developed by Sinbosen specifically for use with the HL-30A line array system. It features a single 18-inch neodymium woofer with a 4.0-inch voice coil and an integrated 3200W peak-power Class-D amplifier module. The unit delivers exceptional linearity and ultra-low distortion across a frequency range of 30 Hz to 140 Hz, achieving a maximum sound pressure level (SPL) of 136 dB.

With its flyable design, the HL-38AS is ideally suited for creating suspended sound reinforcement systems in theaters and various indoor venues, providing seamless integration with the HL-30A line array to cover both the mid-high and low-frequency ranges.
HL-38AS Key Technical Specifications
Specification
Value
Type
Active subwoofer
Driver
Single 18-inch neodymium woofer, 4.0-inch voice coil
Amplifier
Class-D
Power
3200 W Peak, 1600 W RMS
Max SPL
136 dB
Frequency Range
30 Hz – 140 Hz
System Pairing
HL-30A line array system
Installation
Flyable
H-50A: 8000 W Peak Power Dual 12-inch Three-way Active Line Array Speaker
The H-50A is an active, three-way line array loudspeaker designed for large-scale indoor and outdoor performances. It features an integrated four-channel Class-D amplifier with a peak power of 8000 W (4000 W RMS), delivering a maximum sound pressure level (SPL) of 143 dB and a frequency response ranging from 40 Hz to 20 kHz.

Acoustically, the H-50A is equipped with eight high-quality transducers: two 12-inch neodymium woofers (with 3.0-inch voice coils), four 6-inch neodymium mid-range drivers (with 2.0-inch voice coils), and two 3-inch titanium-diaphragm neodymium compression drivers. Combined with a 90° × 10° 4PATH waveguide and a symmetrical cabinet design, the unit ensures uniform and controllable coverage. These transducers are driven by dedicated power channels—4000 W peak for the low-frequency section, 2000 W peak for the mid-frequency section, and 2000 W peak for the high-frequency section—totaling 8000 W of peak power.

Regarding control and connectivity, the H-50A supports networked management and monitoring via RDNet and utilizes 48 kHz / 32-bit DSP processing. It features an input sensitivity of +4 dBu and accepts both balanced and unbalanced signals. Connectivity options include XLR and RDNet EtherCON inputs/outputs, with power supplied via PowerCON IN/OUT connectors. The loudspeaker is equipped with dual protection systems—thermal and RMS—and employs natural convection for cooling.
H-50A Key Technical Specifications
Specification
Value
Type
Active 3-way line array speaker
Frequency Response
40 Hz – 20000 Hz
Max SPL @ 1m
143 dB
Horizontal Coverage Angle
90°
Vertical Coverage Angle
10°
Woofer
2 × 12'' neo, 3.0'' v.c
Midrange
4 × 6.0'' neo, 2.0'' v.c
High Frequencies
2 × 3'' titanium dome neodymium compression drivers
Amplifier
Class-D, four-channel, DSP
Total Power
8000 W Peak / 4000 W RMS
Low / Mid / High
4000 W / 2000 W / 2000 W Peak
System configurations for rigging and large-scale touring productions
These two products serve complementary roles: the HL-38AS, featuring a single 18-inch neodymium driver, delivers low-frequency extension down to 30 Hz and a sound pressure level (SPL) of 136 dB, making it ideal for flown subwoofer arrays in indoor venues such as theaters and auditoriums. The H-50A, with an SPL of 143 dB, a frequency response of 40 Hz–20 kHz, and a 90° × 10° coverage angle, is designed for primary sound reinforcement in large-scale indoor and outdoor performances. Users can configure systems by selecting from Sinbosen’s line array and subwoofer product ranges, tailored to the specific scale of the venue and its rigging requirements.