Adcom GFP-565 preamplifier Specifications

Sidebar 2: Specifications

Description: Solid-state stereo preamplifier. Output impedance (bypass, normal, and lab outputs): 100 ohms; Output level: 2.0V (rated), 10.0V (max); THD plus noise: 0.0025% (high-level), 0.009% (phono). IM distortion (SMPTE): 0.0025% (high-level), 0.0025% (phono). Frequency response (±0.5dB): 5Hz–90kHz (high-level), 5Hz–70kHz (phono). RIAA accuracy: 20Hz–20kHz ±0.1dB. Weighted S/N ratio: >100dB (high-level), >95dB (phono). Power consumption (120V AC/50–60Hz): 10W.
Dimensions: 17" W by 12 9/16" D by 3¼" H. Weight: 11 lbs.
Sample tested: SN 935-133604 (production sample).
Price: $798 (1990); no longer available (2011). Approximate number of dealers: 350.
Manufacturer: Adcom, East Brunswick, NJ 08816 (1990). J&B Distribution, LLC (ADCOM-USA), PO Box 54096, Phoenix, AZ 85078. Tel: (480) 607-2277. Fax: (623) 505-9523 (2011). Web:

J&B Distribution, LLC (ADCOM-USA)
PO Box 54096
Phoenix, AZ 85078
(480) 607-2277

soulful.terrain's picture

The Adcom GFP-555 was my first 'high end' preamp. I loved this pre, it did everything right! It was a minimalist piece with real world circuitry. Paired with my Adcom GFA 555 amp, it was marvellous. :-)   I bet the 565 was even better, but I don't see how. I wish I would have kept it for my second system in my office. Thanks for posting, brings back good memories.

Paul Luscusk's picture

GFA555, and they are amazing together.