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Audio Research SP15 hybrid tube preamp w/phono. Lots of positive reviews! Serviced. $6,000 MSRP – Kahl Audio
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Audio Research SP-15:Exceptional high-end tube preamp, dual-chassis, killer phono stage. Serviced/AR Photo #3427154 - Canuck Audio Mart
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Audio Research SP15 Preamp Incredible Tube Phono Stage Balanced Output for Sale in Las Vegas, NV - OfferUp
Audiocostruzioni - 💥 Un usato perfetto! AUDIO RESEARCH SP15 AUDIO RESEARCH SP15PS Vieni da Audiocostruzioni a provarli, questo weekend siamo aperti: MERCOLEDI' 09.00-12.30 / 15.00-18.30 GIOVEDI' CHIUSI VENERDI' 09.00-12-30 / 15.00-18.30 SABATO
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