Denon TU-600 (1987–1989)
A compact, high-performance AM-FM stereo tuner made in Japan, noted for exceptional sound quality and unusual AM frequency response.
Overview
The Denon TU-600 is a precision AM-FM stereo tuner produced from 1987 to 1989. Manufactured in Japan, it was sold at an original price of approximately $400 in the US or 600 DM in Germany. Known for its sleek silver finish and low-profile design, the TU-600 fits within Denon’s line of high-fidelity audio components from the late 1980s. The TU-600L variant, listed on radiomuseum.org, shares the same core specifications.
Despite its unassuming appearance, the TU-600 earned strong praise from audiophiles, with one reviewer calling it “one of the finest FM tuners we have had the pleasure of using.” However, its AM reception performance was notably narrow, with a restricted frequency response—down 6 dB at 45 Hz and 1,700 Hz from its peak at 400 Hz—leading to commentary about a disconnect between its sonic excellence and technical limitations.
Specifications
| Reception | FM, MW |
| Made in | Japan |
| Color | silver |
| Production years | 1987–1989 |
| Original price | $400 (1987) |
Reception & Use
The Denon TU-600 received notable acclaim for its FM sound quality, described as among the finest experienced by reviewers. However, its AM performance was technically limited, exhibiting 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, leading to observations that it combined “the best sound with worst reception.” A review referenced in online discussions was considered accurate by users familiar with the unit.
Market
A listed asking price of $120.00 was recorded on USAudioMart, though no broader market data or common failure modes were documented.
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