Given that Audio Choice is no longer an active brand, the original PDF may disappear from hosting sites. Here is your backup plan:
Before diving into the download links, let’s cover why the original PDF is irreplaceable. The Audio Choice QM4 has several unique features that generic car amp guides do not explain correctly: audio choice qm4 manual link
Manual Solution: You have reversed the speaker wires. For bridging, connect the speaker’s positive wire to CH3 (+) and the negative wire to CH4 (-) . Do not use CH3 (-) or CH4 (+). The QM4 uses a differential bridged output. Given that Audio Choice is no longer an
Audio Choice is a brand often associated with Studio Technologies, and the QM4 is a robust, professional-grade mixer used primarily in broadcast and commercial audio installations. For bridging, connect the speaker’s positive wire to
Here is the most direct path to the manual, followed by a summary of its key features and operations in case you need immediate assistance.
Once you click the Audio Choice QM4 manual link and open the PDF, you will see 8 critical sections. Here is what each one contains: