Audio Research's current Foundation Series preamp!ARC website: The LS28 line stage is a flexible and intuitive preamplifier. Four balanced and four single-ended inputs, and two sets of both balanced and single-ended outputs, allow maximum connectivity. The straightforward menu allows control of numerous parameters, including input naming, tube hours, auto shutdown, and home theater passthrough. Phase invert and mono are also standard functions. At the heart of the LS28 are four 6H30 vacuum tubes in the analog circuit. While the LS28 is the perfect match for any Audio Research amplifier, it has been designed to work with nearly any amplifier on the market today. Reason this unit is for sale is I have changed to DAC direct to power amp configuration. Includes two wonderful sounding Sovtek 1989 NOS 6H30 tubes from Andy at Vintage Tube Services. Shipping $50 (FEDEX Ground). Will split Pay Pal Fees.
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