Presonus HP4 4 Channel Headphone Amp Yorkville Has on/off switch

Has on/off switch

Lube might help

One knob for more or less reverb and the option to use TonePrint

Standard Acoustic Strings`

Presonus HP4 4 Channel Headphone Amp Yorkville Has on/off switchA Presonus HP4 4 Channel Headphone Amp in Very Good condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the pictures! Everything we sell has been tested and is fully functional unless otherwise noted. We have a 5 star rating from 1000+