Adcom GFA-535 (c.1987–1991)

Name: Adcom GFA-535
Brand: Adcom

Not much is documented about the Adcom GFA-535 beyond period magazine reviews and advertisements. It was a stereo power amplifier rated at 60 watts per channel. Adcom positioned it as the entry-level model, below the GFA-545 (100 W/ch) and the GFA-555 (200 W/ch). HiFI-Stereo (June 1988, p.16) ran a strong endorsement from Sam Tellig, writing as "The Audio Cheapskate." He declared that in its price category the GFA-535 was "not only an excellent choice; it's the only choice." That same line showed up in later issues, which suggests Adcom reused the quote in its advertising.

The GFA-535 was eventually succeeded by the GFA-535II. Audio (December 1991, p.84) described the new version as having higher-grade power supply filter capacitors, for greater power delivery at low frequencies and lower distortion.

Beyond these few magazine mentions - and a brief appearance in a 1990 HiFI-Stereo ad pairing the GFA-535 with Adcom's GFP-565 preamplifier - the Archive's research has turned up no service manual, schematic or detailed review. The basic known points from period sources are:

Power output: 60 W/ch (as paired with GFP-565 in a system ad)
Successor: GFA-535II (c.1991)
Position: entry-level Adcom power amplifier, below GFA-545 and GFA-555
Praised by Sam Tellig in HiFI-Stereo as best-in-class at its price