The Prosonar FXM4900 DJ Rack Mixer goes beyond the possibilities of its smaller brother FXM4800 and offers an additional external effects path as well as an in-built active crossover with subwoofer output plus direct top panel access for both microphone inputs.  The precise gain controls, 3-band EQs in all stereo inputs and the two microphone channels with 3-band EQ and adjustable talkover for flawless vocal performances remain the same, as well as the two separately adjustable master outputs.


  • 2x switchable Phono (Line)/Line stereo inputs
  • 1x switchable Line/USB stereo input
  • 1x switchable Line/AUX input with the AUX input being a front-panel┬á mounted 3.5mm TRS jack (for easy connection of e.g. MP3 players)
  • All stereo inputs with Gain, 3-band EQ (+12/-26dB) and peak LED for greatest ease of setting gain
  • All stereo inputs assignable to left or right side of the crossfader or directly to master
  • 2x Mic inputs with Combo connector, Gain control, 3-Band EQ, and┬á┬á “on air” switch
  • Adjustable Talkover for mic inputs (damping – sensitivity on rear)
  • Smooth dual-rail 60mm channel faders
  • Smooth dual-rail 45mm crossfader with switchable curve “flat”/”steep”
  • Master section with level control and dual level meter
  • Additional booth output
  • PFL section with PFL/Main mix control and Blend/Split option
  • Powerful headphones output with 6.3mm stereo jack
  • Effects section with parallel routing, assignable to mic or master bus with adjustable send/return levels and large backlit on/off button
  • Effects Send/Return connections via 1/4″ stereo TRS connectors
  • Balanced (XLR) and unbalanced main output
  • Balanced (XLR) mono subwoofer output with internal active┬á crossover (crossover frequency adjustable 30-200Hz)
  • Unbalanced record output
  • Charger socket for USB devices on top panel (+5V DC, no data function)
  • Compact 19”/4U form factor
  • CE/ROHS compliant



Two USB options are available for the FXM4900USB:

  • Twin-USB option with two USB inputs which can be assigned to channels 1 and 4 (model code FXM4900USB-T)
  • Single-USB option with one USB input which can be assigned to channel 1 (model code FXM4900USB-S)




  • Signal/Noise ´╝×82dB (Line)
  • Crosstalk Damping ´╝×65dB (Line)
  • THD ´╝ť0.07% (Line)
  • Frequency response 20Hz – 20 kHz


  • AC IN (EU version) AC220-250V~ 50Hz
  • AC IN (US version) AC110-120V~ 60Hz
  • Power consumption max. 18W
  • Dimensions W483xH178xD104mm (85mm mounting depth)
  • Weight 3.2 kg



The FXM4900 can be modified to suit the customer’s needs. The following options are available (only on order – not for retrofit):

  • Knob style and colour (various knob styles available)
  • Cabinet painting colour
  • Silkscreen artwork and colour
  • Packaging artwork



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