Excellent condition Audio Research Reference 110 power amplifier. It comes with all the original packaging, manual, paperwork, & an IsoTek EVO3 power cable. Comes with eight Tung-Sol KT120 which includes a new pair. Two sets of the four input valves are included, the original factory supplied Sovtek, & a set of precision selected Sovtek which I bought from Upscale Audio & which are currently fitted. I replaced the original black handles for silver ones which were supplied by Audio Research (the black ones are included with the sale), & a HiFi Tuning Supreme fuse is also fitted.

The REF 110 produces 125 watts when using the KT120 valves. There are 4, 8, & 16 ohm speaker taps & XLR inputs on the rear.

I had the amp serviced at the end of last year and the KT120 valves were tested at the time of the service. Two of the KT120 were shown to be mid strength so they were replaced with a new pair. Please note that the photos show 6550 power valves installed but I have changed back to the KT120 recently.

I’ve owned this amp for approximately 10 years, having bought it from a friend who bought it as a store demo. For about 5 years of my ownership it was in storage & has had only low use before & after the storage period. It is in excellent cosmetic condition & functions perfectly. Loads of power yet very refined with tight bass & excellent control. I’m only selling as I’m moving to a lower powered Audio Research amp that better suits my speakers.

Lots of great reviews & a few are included below as well as further information.

https://www.arcdb.ws/model/REF110

https://www.absolutesounds.com/pdf/main/press/ARC%20REF110%20HFC0807forweb.pdf

https://www.soundstagenetwork.com/revequip/audioresearch_ref110.htm

https://www.stereophile.com/content/audio-research-reference-110-power-amplifier

https://www.arcdb.ws/Database/REF110/ARC_REF110_web_flyer.pdf