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Vintage Audio Research SP-3 Preamp For Sale - Canuck Audio ...

    https://www.canuckaudiomart.com/details/648989472-vintage_audio_research_sp3_preamp/#:~:text=Similar%20items%20you%20might%20be%20interested%20in%20,%20%20ON%20%2017%20more%20rows%20
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Audio Research SP-3 preamplifier – Old School | TONEAudio ...

    https://www.tonepublications.com/old-school/audio-research-sp-3-preamplifier/
    Audio Research SP-3 preamplifier. Back in the mid 1970s, the idea that a preamplifier could provide “straight wire with gain” was an elusive goal. The idea that such perfection could be achieved from a valve model seemed even more unlikely. Yet when the $595 SP-3 preamplifier arrived on the scene in 1972, many audio reviewers proclaimed that such perfection was well …

Audio Research SP-3 preamplifier - Stereophile.com

    https://www.stereophile.com/content/audio-research-sp-3-preamplifier
    Audio Research SP-3 preamplifier. J. Gordon Holt | Dec 22, 1998 | First Published: Dec 1, 1971. Preview, from Vol.3 No.3: We thought Audio Research's previous-model SP-2C (footnote 1) was excellent, but this is even better—the closest thing available, in fact, to the ideal straight wire with gain. Our sample had a minor glitch—there was a slight "plop" if you rotated …

Audio Research SP-3 - VINTAGE ALL TUBE PREAMPLIFIER ...

    https://skyfiaudio.com/products/audio-research-sp-3-sp3-vintage-all-tube-preamplifier-complete-collector-grade-restoration-w-amperex-tubes
    Audio Research SP-3 - VINTAGE ALL TUBE PREAMPLIFIER - COMPLETE COLLECTOR GRADE RESTORATION w/ Amperex Tubes. $4,599. This is a collector grade restoration of a classic and well regarded preamp from Audio Research. The exact model designation is SP3 and t his is an example of the very first production run for this piece.

Audio Research SP-3 Vintage All Tube Preamplifier ...

    https://skyfiaudio.com/products/audio-research-sp-3-vintage-all-tube-preamplifier-complete-collector-grade-restoration
    Audio Research SP-3 Vintage All Tube Preamplifier - Complete Collector Grade Restoration. This is a collector grade restoration of a classic and well regarded preamp from Audio Research. The exact model designation is SP3 Series A. An excellent match for any vintage system using speakers that might require a bit of boost from the built-in tone controls.

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