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Overall Rating: ⭐⭐⭐½ (3.5/5)

• Adjust tonearm height so the cartridge body is parallel to the record surface; small tweaks affect tonal balance.

Line (1/4") Inputs: Ideal for instruments like keyboards, electronic drums, or acoustic guitars with preamps. audio choice qm4 manual

Battery Installation: Unscrew the microphone base to reveal the compartment. Insert 2 x 1.5V AA batteries. AudioChoice QM4 Manual Review: Comprehensive but Could Be

EQ Adjustment: Use the 3-band EQ in the master section to shape the overall sound and the individual channel Tone knobs for specific sources. Troubleshooting Tips Adjust tonearm height so the cartridge body is

• Full charge gives several hours depending on volume and codecs — typically 8–12 hours at moderate levels.
• Avoid fully draining the battery frequently; recharge when low.
• Store partially charged (40–60%) if you won’t use it for months.
• Use lower volumes for much longer runtimes; Bluetooth streaming uses more power than AUX.

Bluetooth version: 5.0 (typical)
Wireless range: Up to 10 meters (33 feet) open space