Description

Audio Research released the LS28 as part of its foundation series. Its heart and soul is all Audio Research. Wide open presentation, transparent vocals , sonically holographic and will make a significant improvent to most hi-end audio systems. The LS28 later received an upgrade to the LS28SE and its currently $12,000. It went through a rework and make some nice sonic improvements. With 4 balanced inputs and 4 unbalanced, it will handle even the largest of systems. This is a super clean trade and includes the original remote and box. Its been tested and sounds fantastic. If you've been looking to take you system to the next level this is a great way to do it. FEATURES: Remote controlled, fully balanced pre-amp Tubed preamplifier with four sets of balanced and unbalanced inputs each Three sets of balanced and unbalanced outputs Mono / Stereo Input Naming Home Theater Bypass (Called processor mode) Auto-shutdown Adjustable brightness Balance control Four 6H30P (dual triodes) Electronically regulated power supplies SPECIFICATIONS FREQUENCY RESPONSE - 2Hz–200kHz, +0/–3dB MAX VOLTAGE GAIN - 12dB, balanced output; 6dB, single-ended output. DISTORTION - <0.01% at 2V RMS, balanced output. INPUT IMPEDANCE - 120k ohms balanced, 60k ohms single-ended. OUTPUT INP . - 600 ohms balanced, 300 ohms single-ended main OUTPUT POLARITY - Non-inverting. Dimensions: 19" W by 6.5"H by 13.7" D. Handles extend 1.5" (38mm) forward of front panel. Weight: 16 lbs Current Retail on the LS28 SE is $12,000