Kowalski plugs his bass directly into a Sonic Research Turbo Tuner, which feeds a Radial J48 Active Direct Box. The J48 sends the signal to the front of house and a Bass BB Preamp that feeds his Ampeg. The BB stays on most of the time to add a bit of grit and punch, and a Voodoo Lab PP2 powers it all. When Kowalski isn’t smacking his bass with his thumb, he picks with Dunlop .88 mm Tortex Standards.









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Zach loves his Sovtek Mig 60 head, which he plays through a cab he built himself at a pipe-organ shop in Denver. Every glue joint is lined with thin leather for maximum air tightness, and it’s stocked with Celestion G12M Greenback speakers.


































