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This is a buyer’s market for vintage Threshold amps, and the US$1,100 asking price for this Forte Audio Model 3 is a strong deal, sitting just below the 25th percentile (US$1,094) of our 18 recent comparable USD listings, where the median is US$1,400. You’re effectively paying less than the lowest quarter of the market, making this a genuine bargain for a 200W Nelson Pass-designed power amp.
The Forte Model 3 is well-regarded for its clean, high-headroom sound and robust build, delivering tight bass and open highs without the harshness some vintage amps suffer from. At this price, even with unknown condition, the upside is significant: if it powers up cleanly, you’ve secured a rare, high-performance vintage amp at a fraction of typical value. Just verify it powers on and has no channel imbalance before committing.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Threshold Audio emerged in Sacramento, California, in 1974, founded by renowned audio engineer Nelson Pass alongside graphic designer René Besne and Joe Sammut. Pass, a pioneer in amplifier design, launched the brand with the groundbreaking Threshold 800A power amplifier in 1975, introducing a novel sliding bias system that boosted Class A efficiency while employing 48 output transistors in a sophisticated triple-series/triple-parallel configuration. This California-rooted heritage defined Threshold as an innovator during its original run, which spanned until the mid-1990s, after which the intellectual property changed hands, including a 1994 acquisition by investor Randy Patton, who integrated it with PS Audio and relocated operations to Camarillo.
The brand focused squarely on high-end amplification, producing iconic power amplifiers like the 400A and 800A, the Stasis series renowned for their balanced Class A performance, and preamplifiers such as the NS10, SL10, and FET range including the FET-1, FET-2, FET-9, and FET-10. Later designs, like the T-200 by engineer Michael Bladelius, continued this legacy. Threshold eschewed speakers, turntables, DACs, headphones, or cables, concentrating instead on pure analog amplification that prioritized sonic purity and robustness.
Threshold holds a revered position as a vintage high-end icon, cherished by collectors and audiophiles for its enduring sound quality and Pass's technical wizardry. Once a market leader in premium solid-state gear from 1975 to 1992, it remains a sought-after name in the used market, embodying boutique excellence rather than mass production, with modern revivals under Threshold Audio sustaining its elite reputation.
See all Threshold listings on RADAR.
