Brand
Founded by Mike Matthews in New York City in 1968, Electro-Harmonix became known for inventive effects that brought new sounds within reach of guitarists. Its first product was the LPB-1 Linear Power Booster; the company’s long-running catalogue ranges from fuzz and overdrive to delay, modulation, octave and experimental processing. JustPedals listings include the Small Clone chorus, Small Stone phaser, Memory Boy delay, POG 2 octave generator and Micro Q-Tron envelope filter. Check the exact version and power requirements when comparing EHX models, since familiar names often span different generations and formats.
Category
Overdrive uses soft or moderate clipping to add harmonics and compression while retaining more of the original note shape than heavy distortion. Some circuits emphasise the midrange and trim bass before clipping; others remain broad, transparent or amplifier-like. Gain, clipping arrangement, headroom and tone filtering decide whether it supplies a light edge, a saturated drive sound or extra push into another gain stage.
Tags
Voiced or equipped to retain low-frequency fundamentals and the higher headroom of a bass signal. Clean blends, crossovers and bass-specific filter ranges can preserve weight and articulation while the effected portion adds harmonics, movement or ambience.
Can operate from an internal replaceable battery, usually with different available current and running time from an external supply. Battery chemistry, access and automatic disconnection through the input socket affect practical runtime and storage. High-current digital processing generally shortens battery life more sharply than a simple analogue circuit.
Connects input directly to output through mechanical or relay switching when the effect is off, removing the active circuit from the audio path. It avoids buffer colour but leaves cable capacitance and switching design to influence high-frequency loss and possible switching noise.
