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The PM57 from Rolls is a headphone tap with an on-board attenuation switch. A passive unit requiring no external power supply, this device will allow you to convert speaker-level signals to audio suitable for headphones. As such, you can use the PM57 to eliminate the necessity of ungainly wedges or speaker monitors. Simply loop in your power amp through its input, attenuate the signal as needed via the switch, connect your headphones, adjust the volume pot, and you're good to go.
A couple of other features worth noting: The PM57 boasts 1/4" inputs as well as a wired screw-terminal connection. The 1/4" jacks can accept both TRS stereo and TS mono termination points, and a mono/stereo switch will affect the signal of both sets of connections. Also, you can use stereo 1/4" and 3.5mm headphones with this device.
Note: Usage of mono headphones will result in damaging the PM57. Usage of the "Direct" attenuation setting in conjunction with any kind of amplifier will damage the PM57 in ways not covered under warranty—not to mention your headphones and your ears.
No external power or batteries required
Power amp loop-through
Converts speaker level signals to headphone level
Attenuation switch to match proper input level
Will monitor 25, 70, and 100V lines
In the Box
Rolls PM57 Headphone Tap with Attenuation Switch
Limited 1-Year Warranty
Table of Contents
Adjusts for greater than/less than 50 W
1 x wired screw-terminal input 1 x TRS/TS power amp input 1 x TRS/TS power amp output 1 x 1/4" headphone output 1 x 3.5 mm headphone output