I did search the existing threads, but didn't see anything related to my issue. I recently moved my Cali 76-tx-l to a rack drawer. I was powering it with the adaptor but wanted to stop using the adapter. I bought a pedal power iso5 to use the 18v output for the Cali. When I plugged it in the most extreme compression indicator light (31 db) lights up and stays lit. The compressor does not respond to playing and passes no signal to my preamp, and no other lights except the power light work. I thought the iso5 was bad. I returned it and tried a second iso5 and got the same issue. According to origin effects a Cali-tx draws 64mA at 18volts. The 18v output of the iso5 supplied 100mA, so it should work fine. If I use a 9v output or the adaptor everything is fine. Anyone with a Cali-tx experience this? Anyone using an iso5 18v output without an issue??? Thanks for any help!