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About the S8
The Unison Research S8 is a high-end integrated tube amplifier designed with a Class-A, single-ended architecture using two 845 power tubes and three ECC82/12AU7 preamp tubes. It delivers an output power of approximately 2 x 24 watts into 8 ohms or 4 ohms. The amplifier includes a built-in phono preamp and offers 5 RCA line-level inputs plus one tape output. The input stage is built on three sub-triodes ECC 82, and the output stage uses the famous triode 845 tubes. The power supply circuit is based on discrete elements, and the output transformers are bright and water-cooled, rated at 24 watts. The unit weighs about 30 kg and measures 420 x 440 x 260 mm. It comes with a remote control and features rare and expensive Westinghouse 845 tubes in some versions. The S8 is known for its high build quality and musical performance, typical of Unison Research's craftsmanship.
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