Audio Choice Qm4 Manual Link [new] May 2026

The Audio Choice QM4 (often branded as Audio Choice by SoundTech) is a 4-channel powered PA mixer head designed for live performances, karaoke, and small-venue sound reinforcement. Manual and Documentation

• Wiring Diagrams: How to connect 4 pairs of speakers to a single amplifier without damaging impedance load.
• Impedance Settings: Instructions for setting jumpers to "Normal" or "8-16 Ohms" based on how many speaker pairs are active.
• Troubleshooting: Solutions for overheating, channel dropouts, or relay clicking issues.

Finding a direct manufacturer download link for this specific vintage unit can be difficult as SoundTech's original support pages are no longer active for legacy Audio Choice products. However, you can access documentation for similar or related models: audio choice qm4 manual link

Why is this unit sought after?

The QM4 is popular in the AV community because it acts as a "set-and-forget" solution. It lacks unnecessary effects and EQs found on consumer boards, providing a clean, transparent signal path ideal for conferences, podcasts, or simple broadcast setups. The Audio Choice QM4 (often branded as Audio

External Gear: The Line Out allows for connection to an additional amplifier or recording device, while the EFX Loop lets you integrate external signal processors. Wiring Diagrams: How to connect 4 pairs of

. Turn up the channel reverb knob to send signal to the effect, and use the Master Reverb knob to control the total amount. External FX:

While a dedicated digital manual for this specific vintage unit is difficult to find through official manufacturer websites, you can access documentation for similar models or download existing user-contributed guides. Direct Links for Audio Choice QM4 & Similar Models

If the Official Manual Link is Dead (Alternate Solutions)

Given that Audio Choice is no longer an active brand, the original PDF may disappear from hosting sites. Here is your backup plan: