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Ampeg produced the Liquifier-U as an analog chorus pedal. Its dual chorus circuit gave the unit two simultaneous chorus paths, positioning it as a compact stompbox capable of both subtle, modulated tones and more pronounced, heavily processed chorus effects.
The Liquifier-U accepted input signals up to 1.1V RMS before clipping and presented a 1 MΩ input impedance, making it compatible with passive and active instrument outputs alike. Output impedance was 200Ω. The pedal operated at unity gain maximum. In fully wet mode, frequency response was rated at 100 Hz–5 kHz (±3.0 dB); in fully dry mode, the unit passed 20 Hz–20 kHz at ±0.5 dB. Signal-to-noise ratio was 82 dB at full wet and 94 dB at full dry. The enclosure measured 2.2 × 2.6 × 4.5 inches and weighed approximately 0.6 lb. Power was supplied by an internal 9V battery or an external 9V DC centre-negative adapter drawing no more than 56 mA.
Owners requiring service, internal inspection, or help integrating the Liquifier-U into a signal chain should consult a qualified electronics technician familiar with effects pedal circuitry.
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