Audio Research SP9 - Pre-amplifier
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Audio Research SP9 - Pre-amplifier

SP9 - Pre-amplifier, Hi-Fi Amplifier from Audio Research.

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2334patrick 12/03/2012

Audio Research SP9 - Pre-amplifier : 2334patrick's user review

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I just bought an Audio Research SP9 MKII preamp, great precision and detail, along with the heat pipe is a hybrid preamp that combines the advantage of transistor technology and lamp. Attention to the power amp and speakers that we will associate.

PS Prefer a first hand without modification to this unit.