Audio Research - LS2 MKII Preamplifier

Audio Research LS2 MkII – Reference High-End Preamplifier

Exceptional Audio Research LS2 MkII, a very prestigious line preamplifier, made in the USA by the renowned American brand, a world reference in high-end audio.

The LS2 MkII is a highly respected model among audiophiles for its transparency, natural timbre, and excellent frequency extension, offering a balanced, detailed, and musical sound presentation.

Technical Specifications

Model: LS2 MkII
Type: Stereo line preamplifier
Topology: Hybrid circuit (FET + tube) in Class A
Valve: 1 × 6922
Gain:
Main output (RCA): ~18 dB
Balanced output (XLR): ~24 dB
Frequency response: 1 Hz – 100 kHz (±0.5 dB)
THD: less than 0.01%
Output impedance: approx. 200 ohms (RCA)
Inputs: multiple line inputs (RCA)
Outputs:
1 × RCA (single-ended)
2 × XLR (balanced)
Tape Output
Power supply: 230V
Construction: robust metal chassis
Origin: USA
Sound Performance
The LS2 MkII stands out for:
Wide and well-defined soundstage
Excellent instrument separation
Natural and transparent timbre
Controlled and articulated bass
It is an excellent choice for demanding high-fidelity systems, combining technical precision with musicality.

Condition
Fully functional
Very good cosmetic condition for its age
No impact on performance
Includes professional packaging