B FIR Series 1in 1out

Single Channel Active Speaker Amplifier Module for Subwoofer

  • 1500W 2000W 2500W 2800W 3000W 4000W optional.
  • Widely used in Single & Double Subwoofer.
  • Built-in high-performance DSP: AKM, AK7735, 48kHz, 1in 1out, FIR (512 Taps per Channel) designer.
  • Professional-grade audio class D amplifier circuit, Bi-AMP design, RS485 networking.
  • A-Guard Protection System: DC protection, Undervoltage protection, Smart overheat management, Soft startup protection, Output overload protection, Input/Output limiter (DSP Adjustable).
  • Cooling System: Smart fan cooling system control, Variable speed fans, Back to front venting, Mandatory cooling.
  • Compact design, easy integration.
  • OEM, ODM and customized services are available.
Technical Details :
Models B1.15FIR, B1.20FIR, B1.30FIR, B1.40FIR
DSP Type AKM, AK7735, 48kHz, 1in 1out, FIR (512 Taps per Channel) designer
RMS B1.15FIR: 1500W @8Ω , 2500W @4Ω
B1.20FIR: 2000W @8Ω, 3000W @4Ω
B1.30FIR: 2800W @8Ω, N/A @4Ω
B1.40FIR: 4000W @8Ω, N/A @4Ω
Output Circuitry Class D
Frequency Response 20Hz-20kHz(±1dB)(DSP Adjustable)
Total Harmonic Distortion ≤0.05%
Slew Rate ≥40V/μs
Damping Factor ≥1000
Input Impedance 10K/20K Ohms, unbalanced or balanced
S/N Ratio ≥95dB
Power Supply AC 100V-240V ~50/60Hz(Regulated Voltage, SMPS+PFC)
Input Sensitivity 1.7V(DSP Adjustable)
Input/Output Connector XLR
Dimension(W*H*D) 142*332*93.5mm, 192*426*93.5mm(B1.40FIR)
Logistics Information:
Packing Size 42*22*18cm, 52*28*18cm(B1.40FIR)
Shipping Weight 4kg, 8kg(B1.40FIR)
* Testing Standard: EIA, 1kHz sine wave, 40ms, 220V.
* Features and specifications are subject to change without prior notice.