Palmer RIVER wupper Single-Channel Passive Line Isolation Box

Developed for guitar and bass application but also great for keyboards and hi-fi equipment, the Palmer RIVER wupper is a single-channel, line-isolation box used to eliminate ground-loop hum and interfering signals when connected between two devices. RIVER wupper is equipped with a 1/4" connector on the input side and a 1/4" connector on the output side. Both the input and output can either be balanced or unbalanced.