Lehmann Audio Linear II Headphone Preamplifier

Linear II Headphone Preamplifier Delivers Reference-Grade Fidelity

Linear II Headphone Preamplifier is the second-generation evolution of Lehmannaudio’s iconic headphone amplifier, meticulously engineered to elevate reference listening. This precision-crafted unit retains the renowned acoustic signature of the original Linear, while integrating enhanced circuitry and superior components for even greater sonic depth and musical realism. Built for discerning audiophiles, mastering engineers, and critical listeners, the Linear II transforms high-resolution playback into a revealing, fatigue-free experience—ideal for both headphone and speaker-based systems.

Linear II Enhances Sonic Precision with Low-Z Copper PCB Design

Linear II headphone amplifier is defined by its sophisticated analogue board constructed with Low-Z copper technology. This ultra-conductive material reduces resistance and enhances current delivery, allowing for dynamic headroom and micro-detail to flourish across the frequency spectrum. The result is a lucid, open presentation—alive with transient nuance and harmonic depth—that stays articulate even at elevated volumes.

Inside, the Linear II harnesses a discrete Class A output stage free from global feedback, contributing to its organic timbre and lifelike imaging. Every musical element, from delicate string articulations to expansive choral textures, is rendered with surgical clarity and fluid ease.

Linear II Drives Headphones and Active Speakers with Audiophile Authority

Lehmannaudio’s Linear II preamplifier isn’t just for headphones. Thanks to its oversized internal power supply and high-fidelity output stage, it doubles as a powerful single-source preamp for active monitors or power amps. Gold-plated RCA and Neutrik headphone sockets ensure optimal signal integrity and minimal contact resistance, while an output impedance of just 5 ohms (phones) and 50 ohms (pre-out) guarantees clean signal transfer even over long cable runs.

Selectable gain levels—0 dB, 10 dB, 18 dB, and 20 dB—make the Linear II adaptable to a wide array of headphone impedances and source characteristics. From low-impedance IEMs to high-impedance studio cans, the Linear II delivers consistent output with unmatched tonal control.

Linear II Integrates Mundorf Capacitors for Enhanced Staging and Transients

Linear II headphone preamp includes Mundorf capacitors in both the power supply and signal path—renowned in audiophile circles for their low distortion and superb transient response. Their inclusion enhances the amplifier’s spatial rendering, producing vivid soundstage depth and pinpoint instrument placement. Listeners experience a tactile sense of presence, with instruments and vocals suspended in a three-dimensional soundfield that rivals live performance.

Mechanical quietness is further ensured by Lehmannaudio’s 3S absorber feet, which effectively suppress vibrational interference. This detail-focused approach delivers cleaner playback, heightened microdynamics, and improved stereo separation, even during long listening sessions.

Linear II Offers Sleek Aesthetic with Modular Mounting Options

Lehmannaudio Linear II amplifier offers a minimalist form factor with thoughtful physical design. Its space-saving chassis—measuring 110 mm wide, 280 mm deep, and only 50 mm high—fits discreetly on desks or audio racks, while an optional mounting kit allows for wall or furniture installation in either vertical or horizontal configurations. The aluminium faceplate comes in silver, black, or chrome finishes, complementing a variety of studio or living environments.

At just 1.5 kg, this compact yet substantial unit packs serious performance into an elegant, unobtrusive design—perfect for audiophiles seeking both form and function.

Linear II Wins Critical Acclaim and Audiophile Recognition

Linear II headphone preamplifier has garnered widespread acclaim across the audio industry. Recognised with 1st Place in AUDIO’s Goldenes Ohr 2022 Awards for headphone amplifiers and designated as Editor’s Choice by AUDIO/2021, the Linear II consistently outperforms expectations. Reviewers praise its “extreme neutrality,” “deep, clean bass,” and “sparkling elegance,” crediting it with surpassing its acclaimed predecessors in both tonal balance and spatial realism.

Its analogue section, shared with the Linear USB II, has been described as “fuller, more transparent,” and offering a “more deeply staggered stage” than previous versions—making it a top choice for anyone demanding reference-grade sound from their headphone system.