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This is a seller’s market only in the sense that desirable high-power vintage amps remain sought after, but USD 650 is above the normal buying sweet spot here. Your five comparable listings place the median at USD 550, with the 75th percentile at USD 600, so USD 650 is ambitious rather than a bargain. A buyer should try for roughly USD 550–600 unless the unit has documented service or unusually strong condition.
The DH-500 remains appealing because it is a serious, muscular Class AB amplifier rated at 255 watts per channel into 8 ohms, with the current delivery to handle demanding speakers. Its straightforward design, robust power supply, and loyal following make it a worthwhile classic rather than just nostalgia. At this price, though, insist on a clean demonstration, balanced channel output, quiet operation, and evidence of competent maintenance; age-related service matters more than cosmetic shine.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Hafler is an American hi-fi brand rooted in the postwar audio hobbyist era. It traces back to David Hafler, who co-founded Acrosound in 1950 and later helped launch Dynaco in 1954; he then founded the David Hafler Company in 1972, carrying forward his long-standing focus on accessible, high-performance audio. The brand is closely associated with the U.S. DIY-to-assembled tradition that shaped early hi-fi culture.
Hafler became best known for amplifiers and preamps, especially solid-state MOSFET power amps and matching line-stage products. Classic models such as the DH-101, DH-110, DH-200, DH-220, DH-500, and XL-280 established the name, and the company also had a role in speaker design during the broader Hafler/Dynaco era. While not a turntable, DAC, or headphone specialist in its classic identity, the brand’s legacy is strongest in amplification.
In the market, Hafler sits more in the respected value and vintage-audiophile lane than the luxury tier. Its appeal comes from engineering credibility, straightforward designs, and a reputation for honest sound and reliability rather than exotic finishes or ultra-premium pricing. Today, it is best thought of as a classic hi-fi name with strong collector interest and enduring brand recognition among enthusiasts.
See all Hafler listings on RADAR.
