The PM52 is for connecting headphones to a speaker line. The 1/4 Mono/stereo loop jacks are for connecting many boxes in series. There are 2 headphone jacks and volume control. The PM52 uses the speaker line signal for power, and uses no batteries.
- Converts speaker level signals to headphone level
- Mono/Stereo mode
- Power Amp loop through
- No external power or batteries required.
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