Rotary switch for op amp selection enables use of rare or custom chips for unique sound shaping
Dual EQ modes (classic RAT filter or 3-band EQ) provide flexible tone control options
Eight per-channel clipping diode modes allow for a wide range of distortion and overdrive sounds
True bypass design preserves signal integrity when the pedal is off
Clean blend control lets users retain clean signal while adding distortion
Summarized by Shop
Heavy Bat is a modern take on the classic Rat circuit with modifications. The pedal has a true bypass and a rotary switch to select op-amp chips: NOS LM308, UD1408 (Soviet LM308 clone), TLC2272, and NOS 741. The EQ section has two options: classic Rat filter tone control and three-band EQ similar to Boss HM-2. In addition, you'll get the
OP Amp Modes
4 selectable (LM308, UD1408, TLV2272, 741)
Clipping Diode Modes
8 per channel (including silicon, germanium, MOSFET, Schottky, hybrid diodes)