Denon TU-600 (1987–1989)

A compact AM-FM stereo tuner made in Japan. Known for exceptional sound quality and an unusual AM frequency response.

Overview

The Denon TU-600 is a precision AM-FM stereo tuner built from 1987 to 1989. It was made in Japan and sold for approximately $400 in the US or 600 DM in Germany. It has a silver finish and a low-profile case, and it sits in Denon's late 1980s line of high-fidelity components. The TU-600L variant, listed on radiomuseum.org, shares the same core specifications.

The TU-600 looks unassuming, but audiophiles praised it. One reviewer called it "one of the finest FM tuners we have had the pleasure of using." AM is another story. Reception was narrow, with a restricted frequency response - down 6 dB at 45 Hz and 1,700 Hz from its peak at 400 Hz. That gap between the sound and the technical limits drew comment.

Specifications

Reception	FM, MW
Made in	Japan
Color	silver
Production years	1987–1989
Original price	$400 (1987)

Reception & Use

The FM sound quality drew notable acclaim, described as among the finest the reviewers had experienced. The AM performance was technically limited, with a highly restricted frequency response. One analysis noted a 6 dB drop at 45 Hz and 1,700 Hz compared to its peak at 400 Hz, and observed that the tuner combined "the best sound with worst reception." Users familiar with the unit considered a review referenced in online discussions accurate.

Market

One listing on USAudioMart asked $120.00. No broader market data or common failure modes were documented.

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