Audio Research

SP20 Stereo Preamplifier

The SP20 is a full-function line stage with a phono preamplifier and 1/4" headphone jack for complete ease of use and functionality.

Product only available for in-store purchase and not available for online sale.

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Available In-Store Only
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  • Interactive touchscreen allows adjustments such as input naming, gain offsets, volume presets, and tube hours.
  • Features seven levels of voltage regulation, a large power supply, and a very low-noise R-core power transformer.
More Information
Weight 17.80 lbs
Condition New
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