Super nice pair of Threshold SA2 Class A mono amplifiers. These amplifiers are in great condition and sound beautiful. All literature original to the amps is included in the sale (including fuses and banana Plugs shipped with the amps (I will also include the amp stands). These are very sought after amplifiers that are built like tanks. Both amplifiers operate as they should at a temperature of about 47-50C. Both amps run within a degree of one another. 100w x 100w 8ohms or 200W x 200W 4ohms. I also have the matching Fet10/HL Preamp and Fet10/PC Phono Preamp (also in great condition) that I may also sell separately, or as a package for the right price. I will consider shipping to the buyer at carrier cost with insurance and signature.

Threshold S500 250wpc Class A A/B State of the Art Power Amplifier. Specifications Power output: 250 watts per channel into 8? (stereo) Frequency response: 7Hz to 100kHz Total harmonic distortion: 0.1% Gain: 26.6 dB Signal to noise ratio: 100dB Semiconductors: 20 x transistors per channel (output) Dimensions: 8.72 x 19 x 17.125 inches Weight: 78.5lbs Year: 1983 This amplifier was designed by the esteemed Amp Designer Nelson Pass.Selling $2,400

Threshold Model SA12e Pure Class A Monoblocks Amplifiers. Very rare flawless condition with service manual and shipping creates Description: Class-A monoblock power amplifier. Power output: 250Wpc (24dBW) continuous, 500W peak into 8 ohms (resistive or reactive) from 20Hz-20kHz at no more than 0.1% THD. Power bandwidth: DC to 100kHz. Slew rate: 50V/us. Output current capability: 70A continuous (200A peak). Input impedance: 50k ohms unbalanced, 600 ohms balanced. Noise: minimum -100dB, unweighted, against rated output. Dimensions: 19 W by 8.72 H by 27.75 D. Weight: 130 lbs. Price: $14,400/pair (1990); no longer available (2007). Manufacturer: Threshold Corporation, Auburn, CA (1987); Threshold Audio, Inc.

THRESHOLD ModelS/350e STASIS 2 channel power amplifier home audio stereo.

This works and sounds great. Cosmetically also very nice ..please look at the pictures carefully using the zoom feature to confirm as well. I will pack this well for safe delivery within the lower U.S 48 only. Sorry, no international shipping. I will also pack and ship this for free. Thanks!

Threshold S500 250wpc Class A A/B State of the Art Power Amplifier. Excellent condition no scratch clean Sound not abuse. Smoking free. listen to music. May be one hour every two weeks. It’s been checked. Everything good any questions please free to ask no shipping the reason no shipping pick up only I want you to judge for yourself not accuse me Not honest person