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FM MPX Stereo Tuner
At US$299, this is well above the typical used level for a Dynaco FM-5; comparable working examples have recently shown around US$90, and even vintage FM-5s in the market generally land far below this unless fully restored or especially complete. At this ask, it reads ambitious rather than a bargain, so I’d want strong proof of service work, alignment, and cosmetics before paying up.
That said, the FM-5 is a respected classic for a reason: strong sensitivity, very good quieting, and a smooth, musical presentation when properly set up. If this one is clean, fully functional, and ideally includes the original knobs, rack hardware, or paperwork, there’s some upside for a collector or a matching vintage system. But at US$299, condition and documentation matter a lot.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Dynaco emerged in 1955 from Philadelphia, Pennsylvania, when hi-fi pioneer David Hafler partnered with engineer Ed Laurent to form the Dyna Company. Hafler brought expertise from his earlier Acrosound venture, which produced high-quality output transformers starting in 1950. The duo targeted the burgeoning hi-fi market with affordable, DIY-friendly kits, launching the Mk II 50-watt tube amplifier shortly after incorporation and relocating to a former chocolate factory for expanded operations.
The brand specialized in tube amplifiers that defined its legacy, including the iconic Stereo 70—over 350,000 units sold—alongside models like the Mk III. Dynaco expanded into FM tuners such as the FM-1, bookshelf speakers like the A-25, solid-state amps, and innovative systems like the Dynaquad for simulated four-channel sound. Late-1970s efforts included the Phase III speakers, though the company shifted toward kits and components emphasizing value and performance.
Dynaco holds a revered position as the era's top-selling tube amp maker, beloved by budget-conscious audiophiles for reliable, high-value hi-fi. Liquidated in 1980 after Hafler's sale to a toy firm, its vintage gear remains a collector's staple, with later revivals by Panor Corporation producing replicas for tube enthusiasts seeking that classic warmth and build-it-yourself appeal.
See all Dynaco listings on RADAR.
