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Recent right channel rebuilt with new transistors. Used the amp for six months and left channel developed an oscillating buzz. WILL NEED SERVICE Local pick up preferred Excellent cosmetic condition
Should you jump on this at US$450? Not quite — against the recent used market, that lands above the 75th percentile of US$396, so it reads as ambitious rather than a bargain.
The upside is real: this is a respected, high-current MOSFET amp with a solid reputation for control, openness, and strong bass drive, and it has enough power to suit demanding speakers well. At this price, I’d want clear evidence of clean operation, no channel issues, and recent servicing; if it’s been well cared for, it’s still an interesting piece, but the premium has to be justified.
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.
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