$999 · Audio Research SP9 Preamp

Very well regarded hybrid (Tube & Solid State) preamplifier. The SP9 has an excellent phono stage for those whom are getting into vinyl. Overall, this machine is in excellent condition, but I have not used it for a couple of years, so the knobs might need to be deoxygenated. (I will pay for that service if needed.) I would love to get a Sonos Arc soundbar or equivalent value/quality device in trade. Specifications Frequency response: 1Hz to 200kHz Total harmonic distortion: 0.01% Output: 2V (Pre out) Valve complement: 2 x 6DJ8/ECC88 Dimensions: 480 x 134 x 260mm Weight: 5.9kg