1000 Watts amplifier module (Replacement for qsc k12)


Product Description

  • Onboard mixer with two combo XLR and ¼” inputs, and stereo RCA inputs, (three audio input sources); two direct channel outputs and single summed balanced output

  • Extensive DSP enhances system performance

  • DMT(Directivity Matched Transition) provides for matched LF and HF coverage across the entire listening area, eliminating unnatural “dead” or “hot” frequency zones.

  • Intrinsic Correction, first featured in our high-end line-array products maps 65–75 spatially-averaged measurements to IIR and FIR filters that actively adjust time,  frequency and amplitude response to a maximally flat band pass target. The result is a speaker that behaves equally well across the entire sound field.  

  • DEEP and excursion limiting allow for extended low-frequency response by actively managing low-frequency transients without degradation of the underlying signal or adjacent frequencies.

  • GuardRail protection protects both the amplifier module and your performance from unnatural and destructive clipping.


K12A power module

Power Output

1000 W continuous Class D
(500 W LF, 500 W HF)
2000 W peak

Input Impedance

XLR / ¼”: 40 kΩ balanced / 20 kΩ unbalanced
XLR / ¼” MIC mode: 2260Ω balanced
RCA: 10 kΩ


Power, Gain A, Gain B, Mic/Line, LF Mode, HF Mode (Flat/Vocal Boost), Front LED (On/Off/Limit)


Power, Signal A, Signal B, Standby, Limit, Mic


Balanced female XLR/¼” line/mic level input, Balanced female XLR/¼” line level input, Dual Balanced male XLR full range line level out , Balanced male XLR “mix” out, Stereo RCA line level input, Remote gain control, Locking IEC power connector


On demand, 50 mm variable speed fan

Amplifier Protection

Thermal limiting, output overcurrent, overtemperature muting, GuardRail

Transducer Protection

Thermal limiting, excursion limiting

AC Power Input

Universal power supply 100–240 VAC, 50 to 60 Hz

AC Power Consumption
(1/8 of full power)

100 VAC, 2.3 A
120 VAC, 2.01 A
230 VAC, 1.13 A

G weight


Dimensions (W*H*D) mm


Output Circuitry

Class D

User Manual

User Manual


  • PSG AUDIO K12A Amp Module
  • Power Cable


Where to buy