Adcom AND-100
A single box that promised a tuner, a preamp, and a hundred watts per channel - and left almost no paper trail behind.
Overview
The Adcom AND-100 exists mostly in the pages of old magazines. What survives is a description of a single-box tuner/preamplifier with a built-in power amplifier section, rated at 100 watts per channel. Audio (October 1987, p.84) put it plainly: a tuner/preamplifier with 100 watts per channel on tap. That's the headline, and for this model it's nearly the whole story.
Anyone looking for one will find the record thin. No production years have been confirmed. No original price has been confirmed. Dimensions and weight aren't documented either. The AND-100 is known mainly from 1986-87 magazine coverage. The coverage agrees on what the thing was, an integrated tuner/preamplifier with a 100 W/ch amplifier section, but it never fills in the details a buyer or a repair tech would want.
None of this is a knock on the design. It's a gap in the archive. The AND-100 was advertised and reviewed but never fully documented.
Key Features
100 Watts Per Channel, Built In
The amplifier section is rated at 100 watts per channel. It isn't a separate box - it lives inside the same chassis as the tuner and preamp. That means one component, one shelf, one set of cables, and enough power to drive real speakers. The 100 W/ch figure comes from Audio's October 1987 coverage and is the single confirmed power rating for the model.
THD + Noise Around 0.004%
The one piece of measured performance in the record is a clean one. Audio (January 2000, p.66) reported that at output levels of 50 and 100 watts per channel, THD + noise hovered around 0.004% over much of the spectrum. That's a low distortion figure at both half power and full rated output. Whether that measurement reflects the same unit the 1987 coverage described is an open question, given the gap between the two dates.
Phono and High-Level Inputs
The preamp section provides both phono and high-level inputs. In the mid-1980s that meant a turntable could plug straight in alongside a CD player, tape deck, or the audio feed from a video system.
Source Lights for Phono, Tape, CD, and Tuner
The buttons and controls carry indicator lights that show which program source is selected - phono, tape, CD, or tuner. Audio (October 1987, p.84) called the lights out specifically as a convenience feature.
Wireless Remote for Source Selection
Source selection could be made either manually at the front panel or by wireless remote. In 1986–87 that was still a feature worth mentioning in a review, and Audio (October 1987, p.84) did exactly that. It's not a full-function remote in the modern sense — the documentation speaks only to source switching — but it's a real convenience for a component that might sit across the room from the listening chair.
Historical Context
The AND-100's moment in print was brief. Audio (October 1987, p.84) framed the preamp's signal-to-noise design as important for playing compact discs and wide-range HiFi video systems as well as treasured LPs. The same description was carried in HiFI-Stereo (January 1987, p.52), which suggests the coverage circulated rather than being independently generated.
Beyond the 1986-87 magazine window, the record goes quiet. No competitor models are named in the surviving documentation, and there's no confirmed placement within Adcom's product lineup. No service manual, no brochure, no owner's record has surfaced in the usual archives.
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