I'm selling some of my Markbass bass pedals and my Markbass Compressore tube compression pedal for bass is up for sale. I've had it for 4 years and it has been on my pedalboard the entire time in a smoke free studio and gigged twice. It works perfectly. Including Markbass power supply. Ovnilab's review is here: Markbass Compressore Check it out on YouTube at $130 shipped CONUS - no trades, price is firm. Paypal STRONGLY preferred!!!