The Threshold SA/1 is arguably the amplifier that canonized Nelson Pass' place in hifi history. With unparalleled transparency, detail, and depth of image, the SA/1 is an outstanding monoblock. This spectacular pair comes from a single-owner system, and has been fully serviced. They're well balanced, and each deliver a clean 180 watts – 20 watts better than manufacturer spec. They will ship in their original boxes, and the manuals are included. Simply stunning.
- Production
- 1984-88
- Condition
- 9/10
- Serial No.
- 03423 / 03424
- Orig. MSRP
- $5999/ea
- Restoration
- Full 30-point service check
- Replaced any out-of-spec capacitors
- Replaced all lamps in the displays
- Added fast electrolytic caps to the power supply to shorten response time
- Calibrated both meters
- Cleaned controls, switches, and chassis
- Factory Specs
Power output 160 watts into 8Ω (mono)
Frequency response 7Hz to 100kHz
Total harmonic distortion 0.05%
Gain 26.6 dB
Signal to noise ratio 100dB
Semiconductors 40 x transistors (output)
Dimensions 19"W x 8.75"H x 17.125"D
Weight 78.5 lbs
- Documentation
Threshold SA/1 Owner's Manual
- The History of Threshold
- Threshold Audio was established in California in 1974 by audio engineer Nelson Pass and graphic designer Rene Besne. The company is well-known as a high-end audio equipment manufacturer today....
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- Liner Notes
Combining extraordinary sweetness with remarkable detail, depth, breadth, focus, and low-end impact and control, this is now, hands-down, the best-sounding power amplifier I have used. It's become my preferred amplifier for driving the Martin Logan Monolith speakers, as well as just about every other speaker.
—J.Gordon Holt Stereophile April '86
- Stock No.
- 7651043246301
The Threshold SA/1 is arguably the amplifier that canonized Nelson Pass' place in hifi history. With unparalleled transparency, detail, and depth of image, the SA/1 is an outstanding monoblock. This spectacular pair comes from a single-owner system, and has been fully serviced. They're well balanced, and each deliver a clean 180 watts – 20 watts better than manufacturer spec. They will ship in their original boxes, and the manuals are included. Simply stunning.
