Palmer Wupper Passive Line Isolation Box

The Palmer Wupper is a passive line isolation box that reliably eliminates ground loop hum and interfering signals for guitars bass keyboards HiFis and car stereos. This single channel device features a jack input and output galvanic transformer isolation and can even balance signals while maintaining a pure and unaltered sound. The Palmer Wuppers passive operation is simple and failure-proof and is distortion-free up to +6 dBu. Its solid casing is crafted from aluminium and steel and comes with a rewritable tour label for easy attachment to the back.