Audio Research LS3B Preamplifier

At a Glance

The LS3B is a reference-grade, fully balanced solid-state line stage preamplifier released in the '90s. Its pristine clarity, durability, and "build-like-a-tank" construction make it a music lover's dream. It delivers an uncolored and dynamic musicality that remains competitive in modern high-end setups. Solid-state circuitry: Unlike many Audio Research components that utilize vacuum tubes, the LS3 line features a pure solid-state design utilizing JFET inputs and Class-A output stages. The "B" in LS3B refers to true balanced topology, offering XLR inputs and outputs in addition to standard single-ended RCA connections. It features a short signal path layout and DC-coupled inputs to preserve maximum resolution and eliminate switching noise. It omits a built-in phono stage, focusing entirely on line-level performance. Unit includes a direct input path that bypasses control and switching functions to deliver maximum signal purity when fed by high-end DACs or CD players...or an outboard phono pre-amp. Originally $1999, on-line pricing is up to $1600. Unit is in immaculate condition with original box, manual and outer shipping carton. Proudly made in MN.Read More