Audio Choice Qm4 Manual Jun 2026

: The "QM4" appears across various audio brands, including the Q Acoustics Media 4 soundbar , the Quest QM4 powered speaker , and car amplifiers from ESX (Quantum QM-FOUR). This guide focuses specifically on the AudioChoice SoundTech QM4 powered mixer amplifier .

: The unit must be reliably earthed (grounded) to prevent electrical hum and ensure user safety. Additional resources for sound system setup and maintenance Buying & Used Listings Technical Support Where to find QM4 equipment

features four independent channels, allowing you to connect various audio sources:

3-band Master Equalizer (EQ), global Reverb level, and Master Volume control. audio choice qm4 manual

Plug the hardwired AC cable into a grounded wall outlet. Flip the power toggle switch to the "On" position. The front-panel indicator LED should illuminate. Step 5: Gain Staging Plug your source device or microphone into Channel 1.

The rear panel facilitates all connectivity for inputs, outputs, and power.

: Confirm that the Master Volume knob is turned down completely. Plug the power chord into a grounded AC outlet. Flick the power switch on; the front-panel LED power indicator should illuminate. Channel Strip and Input Controls The front panel of the Audio Choice QM4 Go to product viewer dialog for this item. : The "QM4" appears across various audio brands,

: Designed for dual 10-inch passive enclosures (e.g., SoundTech C100)

The master panel's auxiliary patch bay expands your system for modern workflows:

To maintain performance and longevity, follow these physical placement guidelines: Additional resources for sound system setup and maintenance

: Controls the input level of the specific channel.

Portable desktop/tabletop chassis wrapped in protective black Tolex with an integrated carrying handle. Mixer Weight: Approximately 20.5 lbs (9.3 kg). Dimensions: 6" H x 18.5" W x 11.5" D. Front Panel Layout and Control Functions

Use standard 1/4" speaker cables to connect to passive enclosures. The system was originally bundled with 2x10" enclosures.

While an official manual is not available, the QM4's core specifications, as advertised, provide a basis for understanding its capabilities.

The is a vintage, highly portable 4-channel, 100-watt powered PA mixer head designed for live performances, rehearsal spaces, karaoke, and small-venue public address applications. Known for its rugged Tolex-covered modular form factor and dependable analog mixing workflow, this manual provides the essential instructions needed to set up, operate, and troubleshoot the hardware safely. Hardware Overview and Control Panel