For a totally passive true bypass ABY, look no further than the BigShot. Radial's BigShot ABY sports an buzz-killing on-board transformer, polarity reversal, and, of course, a true bypass ABY amp selector. The BigShot does its job without any need for buffering or loading circuits, so for your true bypass switcher needs, check out the Radial BigShot ABY.
This lightly used utility pedal will ship out to you lightning fast after payment. Please give us a call if you have any questions about it.