The Homebrew Electronics Hematoma is a 2 channel bass effect consisting of a Pre-amp and an Overdrive. Pre-amp and Overdrive can be used independently or combined. Carefully constructed circuitry allows the original bass tone to pass through unaltered. No loss of low end.

Pre-amp Features:

• Pre-gain control for up to 5db boost

Overdrive Features:

• Gain, Level, Tone and EQ Shift which changes the sweep of the tone control and provides a warmer smoother tone when engaged

General Features:

• 9V operation via battery or DC adapter (not included)
• True bypass switching
• Metal, open frame, chassis mount input/output jacks
• Chassis mount 9V DC adapter jack
• Heavy duty chassis mount metal shaft potentiometers and switches
• High quality double sided circuit boards
• Metal film components (resistors & capacitors)
• Durable powder coat finishes
• Heavy gauge Teflon coated wire
• Solid mounted PC boards
• Heavy duty battery clips/holders
• Die-cast metal enclosures