Balanced low-impedance input for dynamic microphones.
A single-pot equalizer that tilts between cutting low frequencies (turning counterclockwise for speech clarity) and cutting high frequencies (turning clockwise to mellow out harsh instruments).
[Channel 1-4 Inputs] ---> [Individual Gain/Tone] ---> [EFX Loop Send] │ (External Effects) │ [Master Output Speakers] <-- [Master EQ / Volume] <-- [EFX Loop Return]
Original remote, power cable, and wall-mounting bracket. Feel free to DM for the full digital manual if you need it! 🛠️ Technical Resources audio choice qm4 manual
Issue 1: Power light is on, but there is absolutely no sound output.
: Use individual channel EQs to correct problem frequencies (e.g., cutting low-end rumble on microphones). Use the Master Graphic Equalizer to adjust the overall tone to match the room's acoustics. Troubleshooting Common QM4 Issues
Unlike modern all-digital mixers, the QM4 offers a simple, tactile interface with dedicated knobs for every function—a design that many users find practical and immediate for live sound situations. Balanced low-impedance input for dynamic microphones
Being a passive mixer, there is a natural "insertion loss" of signal strength (typically around 6dB to 10dB). You may need to turn up the gain on your amplifier or powered speaker to compensate.
The AudioChoice QM4 manual successfully covers the basics needed to operate the device, but it shows room for improvement in organization and translation quality. Here’s a detailed breakdown.
: Adjust the Gain for each channel until you have a strong signal without clipping (distortion), then use the Master Level to control the overall volume. Troubleshooting and Maintenance Feel free to DM for the full digital manual if you need it
Turn up the individual channel Reverb knob to route that signal to the internal spring reverb tank. Control the overall depth of the effect across the entire mix using the Master Reverb knob.
If you want, I can: