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Offered is „FET Nine“ by Threshold as second-hand device from the category „Transistor-Preamp“ on audio-markt.de - the online market place for high-end. The advert with the number 8170235063 ends on 07.12.2026 at 18:08 o'clock.
The €1,100 asking price is a strong deal against the 14-comparable market: it sits well below the €1,484 25th-percentile figure, versus a €1,726 median and €3,104 75th percentile. For a good-condition example, that is bargain territory rather than merely fair pricing.
The FET Nine remains a respected vintage preamp, combining a muscular, open line stage with a genuinely useful MM/MC phono section offering adjustable loading and gain. It also has a robust chassis and separate power supply, and healthy examples are known for clean, wide-band performance. At this price, the main attraction is the opportunity to get serious Threshold engineering without paying collector-level money; confirm that the external supply is included and that all inputs, phono settings, switches, and channels work properly.
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.
