might be the first one on TalkBass! A new take on the legendary vintage studio compressors for your pedalboard. Sounds fantastic, no frequency loss, punchy and fat. A tube optical compressor as good as it gets, just research the Internet and their webpage and you will know.... I am looking for something with attack release tweaking so would love a trade for a Cali compact or a fea....or you can buy the optivalve for $333, I paid $398 for it....