LS2

Audio Research LS2 – All-Tube Class A Line Preamplifier

The Audio Research LS2 embodies the very essence of high-fidelity music reproduction according to the Audio Research philosophy: an all-tube signal path, minimalist topology, and pure Class A operation aimed at absolute transparency and full preservation of musical information.

Designed for demanding audiophiles seeking natural, stable, and deeply musical sound reproduction, the LS2 stands out with a holographic soundstage, exceptional harmonic richness, and remarkable background silence.

Sonic Signature

The LS2 offers musical reproduction of great purity characterized by:

• Three-dimensional and perfectly stable soundstage
• Rich and natural harmonic texture typical of Audio Research tube circuits
• Extremely fine micro-dynamics revealing the most subtle nuances
• Articulate and perfectly controlled bass
• Exceptional background silence enhancing musical legibility
• Tonal neutrality without artificial coloration

Its single-gain stage design helps preserve the temporal coherence of the signal and avoids any superfluous complexity in the audio path.

Architecture and Design

The LS2 is based on a minimalist architecture aimed at maximum signal purity. Every design choice reflects Audio Research's desire to reduce interference and preserve musical integrity.

• Pure Class A operation
• All-tube signal path
• Single-gain stage topology
• Cathode follower bias for optimal stability
• Absence of solid-state components in the audio path
• High-stability low-noise power supply
• Symmetrical architecture optimized for maximum transparency

This approach results in coherent, fluid, and remarkably natural sound reproduction, even on very high-resolution systems.

Technical Specifications

Recommended Synergy by Son Ultime

For optimal performance, we recommend the following combinations:

Ideal Amplifiers:

• Audio Research Reference series
• Audio Research D-Series
• High-resolution amplifiers with balanced input

Recommended Speakers:

• Bowers & Wilkins 800 Diamond series
• Sonus Faber Amati / Olympica Nova
• High-resolution wide-bandwidth systems

Recommended Cables:

• Shunyata Research Sigma X
• Shunyata Research Alpha X
• High-transparency balanced cabling

Son Ultime Listening Experience

The Audio Research LS2 is available for demonstration in our reference listening rooms. It can be evaluated in different system configurations to determine the optimal pairing according to your environment and musical objectives.

Our specialists can perform a complete system calibration and assist you in optimizing your audio chain.

Positioning in the Range

The LS2 positions itself as a minimalist reference in the Audio Research range, prioritizing signal purity and natural musicality. It is an ideal solution for high-performance line systems that do not require an integrated phono stage.

Frequently Asked Questions

Is the LS2 fully tube-based?
Yes, the signal path is entirely tube-based.

Does it include a phono stage?
No, it is a line preamplifier only.

Can it be used with modern amplifiers?
Yes, it is compatible with most high-resolution amplifiers.

Is it suitable for a very high-end system?
Absolutely, its transparency makes it ideal for reference systems.

Son Ultime Expertise

• Demonstration in dedicated listening room
• Personalized complete system advice
• Audio chain calibration and optimization
• Professional installation
• Specialized Audio Research support in Quebec

Schedule a private listening session or contact our specialists for personalized recommendations.