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About the LS2
The Audio Research LS-2 is a high-performance tube preamplifier designed for serious two-channel audio systems. It uses a single Class-A gain stage with dual 6H30 triodes in a cathode follower topology, eliminating solid-state devices from the signal path for pure, transparent sound reproduction. Key features include a full touchscreen interface for balance, input labeling, and display options; 4 single-ended RCA inputs and 2 balanced XLR inputs; user-installable optional phono card (MM/MC with 42dB/62dB gain) and DAC card (USB, coaxial, optical); machined metal remote control; and handcrafted construction in Minnesota. It delivers warm, rich audio with exceptional clarity, dynamics, and harmonic texture, suitable for integration into high-end systems.
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