ELECTRO HARMONIX Q TRON ENVELOPE FILTER ΠΕΤΑΛΑΚΙ

electroharmonix q tron envelope filter ΠΕΤΑΛΑΚΙ improve your groove. the phattest. funkiest envelope filter ever made! switchable boost and filter modes allow for an unlimited supply of new auto-wah effects that drip with attitude. increased frequency response and improved signal-to-noise ratio make the q-tron perfect for use with any instrument. bootsy collins and george clinton already have theirs. how about you?.