Electronic Audio Experiments Greathammer Bass Driver Overdrive Pedal

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The Electronic Audio Experiments Greathammer is a bass-focused overdrive that brings a distinct flavor of solid state thunder.

With a gain control spanning a 50dB range, the Greathammer can be restrained or rowdy. They took cues from a beloved 1970s Canadian bass amplifier, but they did not shy away from redesigning entire circuit blocks from scratch. Without taking away the classic piano-like attack that defined 90s noise rock, they expanded the tonal range to suit more tasteful playing or filthy, down-tuned mayhem. Critically, their circuit can achieve far deeper low frequency extension than its progenitors—all without the unnatural, disconnected feel of a traditional clean blend.

The Greathammer is equally effective in front of an amplifier or as a dedicated preamp. And, while they designed this with bass as a primary focus, it is quite striking on guitar as well.

Features:

Electrical Specifications

• Bypass switching: Silent electronic switching with a high-headroom op amp buffer
• Input impedance at 1Khz: 1M ohm
• Output impedance at 1Khz: <1K ohm
• Power: 9VDC, 2.1mm center negative barrel. The current draw is 70mA. 
• They recommend a regulated, isolated power supply rated for 100 mA minimum. The DC input is protected against reverse polarity and over-voltage up to 20V. Our pedals do not accept batteries.

Controls

• Level: overall volume level, capable of extremely high output
• Gain: signal gain, from clean to moderate to extreme. Approximately 50dB maximum passband gain.
• Bass: post-clipping low frequency shelf boost, up to +14db at 100Hz and below
• Attack: pre-gain tone control, adjusts frequencies above 1kHz to tailors the overall drive response and sharpness of pick attack
• Notch (toggle): 3-position mid cut. Center is a full mid cut, down is a moderate mid cut, and up is flat mids.
• Footswitch: Activates the effect with intelligent momentary/latching behavior.