Quick view Darkglass Electronics Microtubes B7K Overdrive Preamp v2 OUR WINGS MSRP: Now: $349.99 Was: Microtubes B7K V2 Bass Preamp Pedal by Darkglass Electronics The Microtubes B7K V2 isn't just an outstanding DI; it stands out as a compact preamp and an aggressive drive unit. The pedal retains the... MSRP: Now: $349.99 Was: Quick view Qty in Cart: 0 Price: MSRP: Now: $349.99 Was: Subtotal: