Professional Audio


Q-MOS Stereo Power Amplifiers

Product Description

This 2U range of power amplifiers is intended for venues where amplifier racks are not on display, and once installed, are out of sight.  The Q-MOS range has all the same reliable attributes as the MA series but the twin VU bargraph and heavy duty laser-cut illuminated front panel and associated components have been removed.  The other components and power levels all remain the same as the MA Series.  These amplifiers are distinguished as a cost effective rack mount solution offering exceptional value for demanding applications where reliability is essential.


  • Balanced line inputs and link sockets. (XLR & 6.35mm jack)
  • Active Clip Limiter internally configurable from off to max
  • Class AB Mosfet output stage
  • Fan cooling with proportional speed fan
  • DC,  thermal and short circuit protection
  • Mains inrush current limiter and soft start
  • Speakon speaker sockets

Q-MOS 500:    250 + 250 watts into 4 ohms,  12.5Kg.
Q-MOS 1000:  500 + 500 watts into 4 ohms,  13.7Kg.
Q-MOS 1300:  650 + 650 watts into 4 ohms,  14.5Kg.
Q-MOS 2000:  1000 + 1000 watts into 4 ohms, 15.6Kg.
Dimensions: 483  x 290 x 89  (2U)


Power Output R.M.S:  as stated above
@ 1KHz into 4 ohms, 70 % into 8 ohms
Frequency Response:   20 Hz – 25 kHz ±0.5dB
T.H.D.@ rated power:  <0.02% @ 1 kHz
Signal to noise ratio:   Better than 100 dB
Channel Separation:   Better than 80 dB
Thermal Protection:   90 deg C
D/C Protection: ±32V
Short circuit protection:   all models
Clip Limiter:    Internal, off to max required SPL
Input Sensitivity:    775 mV / 0dBu
Input Impedance:   10K + 10K (Bal)
Damping Factor:   Better than 400
Slew Rate:  40V / uS
Soft Start:   all models
Mains Inrush Limiting:   650 + 650 W and above
Mains Input Power:   230V ±10% 50-60Hz