| PM57 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. PM57 Headphone Tap
The PM57 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 PM57 uses the speaker line signal for power, and uses no batteries. The attenuation switch on the PM57 helps match the correct level input to get the desired headphone level.
PM57 Headphone Tap
No external power or batteries required.
Power Amp loop through
Mono/Stereo mode
Converts speaker level signals to headphone level
Attenuation switch to match up proper input level
Will monitor 25, 70 and 100V lines
Specifications
Attenuation switch adjusts for < and > 50 watts
Input Impedance: 150 Ohms
Size: 2.75" x 3" x 1.25"
Weight: .5 lb
Can be used for direct attenuation of headphone signals
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