Audio Choice Qm4 Manual Jun 2026

: Ensure your speaker system loads align with the mixer's 4-ohm rated output. Running a load lower than 4 ohms will cause the amplifier to overheat and trigger internal protective circuits.

serves as the definitive roadmap for operating this highly portable, 100-watt, 4-channel powered public address (PA) head. Manufactured by SoundTech—a brand highly regarded for building rugged gear for clubs, schools, and houses of worship—the Go to product viewer dialog for this item.

Each of the four independent channel strips features identical controls to shape individual inputs:

Tell you (microphones, speakers) to connect to the Go to product viewer dialog for this item. Give you tips on how to avoid feedback during your set audio choice qm4 manual

First setup — get it playing fast

is a , meaning it sends an amplified electrical signal out of its rear panel.

: 4 independent channels, each featuring combination 1/4" and XLR inputs. : Ensure your speaker system loads align with

is a reliable source for finding QM4 mixers and similar signal processors. Manuals and Technical Data

: Do not mount the unit inverted or vertically with downward airflow. Ensure at least 50mm of clearance around ventilation openings to prevent overheating.

: The receiver will display Signal Strength icons when the microphone is successfully paired and within range. : 4 independent channels, each featuring combination 1/4"

If you need more help optimizing your audio setup, tell me you are plugging in (mics, guitars, keyboards) and the size or type of room you are setting up in. I can provide custom settings tailored to your venue.

Turn off the QM4 main power switch located on the rear or side panel.

: Features an EFX loop, line out, and a footswitch option for remote reverb control.

(some variants noted at 9.5 lbs) and measures roughly 6" H x 18.5" W x 11.5" D. Speaker Configuration : Frequently bundled with two 10" 2-way enclosures

Connect your speakers (e.g., 10" enclosures) to the rear Speaker Outputs.

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