Audio Research LS-3

8790 €

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Inspired by the original LS3 line stage that received numerous awards worldwide in 1992, the modern LS-3 is a solid-state design that utilizes a fully balanced differential JFET input stage, a bipolar transistor-based voltage amp, and Class-A output stages.

The signal path is fully dual-mono, with separate power transformers and zero gain-cascaded voltage reference, and linear power supplies that provide low noise and outstanding dynamics.

The chassis is elegant and modern, while providing a silhouette that is instantly recognizable as an Audio Research. An all-new touch screen display allows for input naming, adjustment of the display intensity and color selection, plus many other functions. The display carries forward the font style of our Reference GhostMeters® for a cohesive look.

Sources are rendered with a rich tonal balance, speed, dynamics, and a sense of energy that propels the music forward and involves the listener. It also plays big, reproducing the recording space with air, space, and great focus.

The LS-2 and LS-3 share the same, beautiful all aluminum chassis that has been carefully designed to offer the stability and rigidity necessary to isolate this circuit for maximum performance.

SPECIFICATIONS

Type / Topology	Fully balanced discrete tube line preamplifier
Signal path	Discrete balanced circuitry from input to output
Gain	18.5 dB (balanced), 12.5 dB (single‑ended)
Frequency response (‑3 dB)	0.4 Hz – 200 kHz (balanced, 200 kΩ load)
Total Harmonic Distortion (THD+N)	< 0.007 % at 2 V RMS balanced
Noise (A‑weighted)	< ‑100 dBV (balanced)
Dynamic range	122 dB (AES17)
Channel separation	> 105 dB
Input impedance	100 kΩ balanced · 50 kΩ single‑ended
Max input level	16 V RMS (balanced) · 8 V RMS (SE)
Rated outputs	2 V RMS balanced (1 V RMS SE) into 200 kΩ load
Maximum output	17 V RMS balanced @ < 0.5 % THD
Output impedance	600 Ω balanced · 300 Ω single‑ended
Controls / Features	Rotary input selector · volume (103‑step) · power on/off · mute · phase invert
Display / UI	Front panel button controls
Remote control	Full‑function remote included
Tubes	4 × 6H30P dual triodes in signal path
Power supplies	Electronically regulated high and low voltage supplies with automatic warm‑up/brown‑out mute
Power requirements	105–125 VAC 60 Hz / 200–250 VAC 50/60 Hz · 130 W max consumption
Standby power	2 W
Dimensions (W × H × D)	19″ (48 cm) wide · 6.5″ (16.5 cm) high · 13.7″ (34.8 cm) deep
Net weight	~7.2 kg (16 lbs)
Shipping weight	~10.9 kg (24 lbs)