You can connect two devices simultaneously. According to the manual:
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.
: If the LED doesn't light up, ensure the power adapter is securely connected to both the wall and the receiver. PROFESSIONAL WIRELESS MICROPHONE SYSTEM MANUAL
To get the most out of your Audio Choice QM4 amplifier, here are some tips and tricks to keep in mind: audio choice qm4 manual
is a , meaning it sends an amplified electrical signal out of its rear panel.
One-page visual setup for cables and Bluetooth.
The engineered primarily for gigging musicians, mobile DJs, karaoke hosts, and small-venue sound reinforcement. If you have acquired this classic analog workhorse without its original documentation, navigating its front and rear panel operations is essential to optimizing your live sound. This comprehensive operational guide serves as a manual to help you configure inputs, balance frequencies, manage power outputs, and troubleshoot your system safely. Hardware Overview & Front Panel Layout You can connect two devices simultaneously
The QM4 allows for up to four distinct audio sources to be mixed simultaneously. For example, a karaoke setup might use Channels 1 and 2 for microphones and Channels 3 and 4 for background music players. Each source has independent EQ to prevent frequency masking (e.g., cutting bass on microphones to reduce rumble).
Governs the overall wetness and return level of the internal reverb tail.
: Controls the final output volume sent directly to your passive speaker enclosures. Back Panel Connections and Signal Routing : If the LED doesn't light up, ensure
1 x Balanced XLR (Microphone) and 1 x 1/4-inch TRS/TS (Instrument/Line Level).
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