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Hifi History: The Classic, Tube-tastic Audio Research SP-3A Preamplifier

This week Tom Martin discusses the Audio Research SP-3a, his pilgrimage to Transcendental Audio, and the legacy the SP-3A left in its wake as it pioneered and pushed the hi-fi boundary.

Tags: PREAMPLIFIER AUDIO RESEARCH HIFI VIDEO HISTORY

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Tom Martin

By Tom Martin

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