Audio Choice Qm4 Manual Jun 2026

A: With the device powered off, press and hold Power + Volume Up + Bluetooth button for 8 seconds. The LED will flash white three times, confirming a factory reset.

Before making connections, verify that your equipment matches the structural electrical limitations of the QM4 head. Specification 100 Watts RMS Typically rated at 4 Ohms or 8 Ohms minimum load Input Channels 4 Monophonic Channels Dual-interface configuration per channel Connector Types XLR (Low-Z) & 1/4-inch TS (High-Z) Supports microphones and line-level instruments Master Equalization Built-in Graphic EQ Tailors the final output room acoustics Chassis Build Heavy-duty Tolex with corner guards Designed for transport and gig endurance Control Panel Layout and Signal Flow Operating the Audio Choice QM4 audio choice qm4 manual

Sound and placement tips

: Rotational potentiometer determining how much of that specific channel's signal is routed to the master mix. A: With the device powered off, press and

Adjusts global acoustics. Use this to adapt the entire PA system to the specific acoustics of different rooms. Specification 100 Watts RMS Typically rated at 4

A: With the device powered off, press and hold Power + Volume Up + Bluetooth button for 8 seconds. The LED will flash white three times, confirming a factory reset.

Before making connections, verify that your equipment matches the structural electrical limitations of the QM4 head. Specification 100 Watts RMS Typically rated at 4 Ohms or 8 Ohms minimum load Input Channels 4 Monophonic Channels Dual-interface configuration per channel Connector Types XLR (Low-Z) & 1/4-inch TS (High-Z) Supports microphones and line-level instruments Master Equalization Built-in Graphic EQ Tailors the final output room acoustics Chassis Build Heavy-duty Tolex with corner guards Designed for transport and gig endurance Control Panel Layout and Signal Flow Operating the Audio Choice QM4

Sound and placement tips

: Rotational potentiometer determining how much of that specific channel's signal is routed to the master mix.

Adjusts global acoustics. Use this to adapt the entire PA system to the specific acoustics of different rooms.