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SoundQubed Q4-90

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 Product Description

The Q4-90 is the most versatile amplifier in our lineup. With its feature rich design you're able to power a complete system, including the mid/highs and the sub off one amp. It features a high power 4 channel class A/B output section that delivers superb sound quality and ample power to drive multiple arrays of speakers. The Q4-90 features variable high and low pass filters that can also be used in a band pass configuration. The Q4-90 also has variable bass boost, remote gain control w/ clipping indicator, and RCA pass through jacks to optimize the amplifier for multiple types of installs. 

  • Stable down to 2ohm Stereo or 4ohm Mono
  • Stereo Audio Outputs for Daisy Chaining multiple amplifiers 
  • Four way protection circuits: Speaker shorts, DC offset, High/Low voltage, Thermal protection
  • Double sided boards with high current MOSFET switching devices
  • 24db/oct slope crossovers, Fully adjustable High Pass, Low Pass Filter and Band Pass Filters
  • Includes Remote Gain Knob (for use in BP/LP mode on channels 3/4)


Model Q4-90
Length 14"
Mounting Foot Length 15.25"
Width 9.50"
Height 2 5/8"
Input Sensitivity 8V~0.2V
Low Pass Filter 50Hz ~ 5kHz
High Pass Filter 20Hz ~ 5kHz
Crossover HPF/FULL/LP-BP
Remote Gain Control Included
Clipping Display Led Yes
Signal to Noise Ratio 105dB
Damping Factor 200 <
Bass Boost @45Hz 0~18dB
External Fuse Rating 40A x 2 pcs
4 ohm power @ 14V 90Wx4
2 ohm power @ 14V 130Wx4
4 ohm mono power @ 14V 260Wx2
Power and Ground Inputs 4ga

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