The Echoplex Preamp circuit primes your signal with a carefully balanced EQ profile, allowing you to refine your sound via the pedal’s tone dials. The Treble and Bass knobs cut or boost frequencies at 8 kHz and 40 Hz respectively. The Mid knob cuts or boosts the midrange as set by the Frequency knob, from 250 Hz to 1 kHz. This range of frequencies was selected to give you maximum flexibility and minimal fuss when refining your bass signal.
- All the tone-sweetening versatility bass players need in an MXR mini housing
- Combines the Echoplex Preamp with a three-band EQ and mid-frequency adjustment
- Punch up a solo, boost your live signal, or sculpt a more aggressive edge onto a passive sound





















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