Audio Research
Audio Research LS-2 Preamplifier
Audio Research LS-2 Preamplifier
Inspired by the original LS2 line stage of 1992, the modern LS-2 is a pure tube, zero-feedback, pure Class-A design with two 6H30 dual-triode tubes at its heart and no solid-state devices in the signal path. A single gain stage with constant-current cathode bias and a cathode follower delivers the harmonic richness and dimensionality of dual-triode vacuum tubes. An all-new touch-screen display provides input naming, intensity and color adjustment, and user-installable DAC and MM/MC phono cards are optional.
Specifications
| Dimensions | 19 in W x 7 in H x 17.5 in D, 33 lbs net |
|---|---|
| Display | Full touch-screen with input labeling and color options |
| Frequency response | 10Hz to 40kHz (-0.3dB at rated output, balanced) |
| Gain | 12dB balanced and single-ended |
| Inputs | Balanced XLR and RCA; optional user-installable DAC and MM/MC phono cards |
| Topology | Pure Class A, zero feedback, single gain stage |
| Tube complement | Two 6H30 dual triodes |
Options & Upgrades
| DAC card User-installable |
+$1,000 |
|---|---|
| MM/MC phono card User-installable |
+$1,000 |
| Both DAC and phono cards, factory preinstalled | +$1,500 |
Prices shown are for the base configuration. Ask us about options and factory upgrades when you visit.
Call or visit the showroom about availability. Contact our team for pricing, a demonstration, or system design — get in touch.
Or call (512) 883-0844
Pricing on request. Call or visit the showroom about availability.

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