Lehmann Audio Linear II Pro

Note: This offer is for a used device. The device may have minor scratches, but this does not affect its functionality – it is in perfect sound and technical condition.

Linear II Pro – Professional headphone amplifier for recording, mixing and mastering

The Linear II Pro is an uncompromisingly engineered headphone amplifier for professional recording studios, mastering studios, and demanding audio productions. Based on the proven Linear reference model, this Pro version was specifically designed for sound engineers, producers, and mastering experts who demand the highest precision and absolute reliability when evaluating audio material.

The focus is on exceptionally neutral and linear sound reproduction. Thanks to its high detail resolution, precise impulse response, and realistic spatial imaging, the Linear II Pro enables precise analysis of even the finest nuances. Mixes, dynamics, and timbres can be reliably assessed regardless of room acoustics or loudspeakers – a crucial advantage in professional recording, mixing, and mastering applications.

A key feature is the innovative LowZ Copper circuit board. Thanks to its significantly thicker copper compared to conventional circuit boards, it measurably improves the signal-to-noise ratio and reduces unwanted artifacts to a minimum. The result is even cleaner signal transmission, enabling faster detection of sonic changes and more efficient, informed decisions in the production process.

Even with demanding headphones, the Linear II Pro delivers impressive performance. Its powerful discrete Class-A transistor output stage effortlessly drives both high-impedance and low-impedance studio headphones, ensuring controlled, low-distortion playback at all times. Two parallel headphone outputs also allow for the simultaneous use of two headphones with the same impedance – ideal for listening comparisons or monitoring in the studio.

For maximum flexibility, the amplifier features balanced Neutrik XLR combo inputs, allowing connection to both balanced and unbalanced signal sources. Gold-plated contacts ensure consistently reliable signal transmission and minimize contact resistance.

Another advantage is its comfortable long-term listening comfort. The exceptionally clear reproduction allows for precise work even at lower listening volumes. This reduces listener fatigue and protects your hearing – an important aspect during long studio sessions.

Manufactured in small batches and equipped with high-quality components, the Linear II Pro meets the highest professional demands. Whether recording, mixing, mastering, or critical sound control – this reference headphone amplifier delivers the precision and transparency that modern audio productions require.

Technical data

Model: Linear II Pro

Product type: Professional headphone amplifier

Applications: Recording, mixing, mastering and studio monitoring

Circuit: Discrete Class-A transistor output stage

Printed circuit board technology: LowZ Copper

Input impedance: 18 kOhm, balanced

Gain: 0 dB / 10 dB / 18 dB / 20 dB

Frequency response: 10 Hz (-0.3 dB) to 35 kHz (-1 dB)

Signal-to-noise ratio: 108 dB (Gain 0 dB)

THD: < 0.003% at 13 mW / 300 ohms

Channel separation: > 70 dB at 10 kHz

Channel imbalance: < 0.3 dB at maximum volume

Output power:

200 mW at 300 ohms

400 mW at 60 ohms

Output impedance: 5 ohms

Maximum output level: +20 dBu

Audio inputs: Neutrik XLR combo jacks with gold-plated contacts

Audio outputs: 2 × Neutrik 6.35 mm jack sockets with gold-plated contacts

Mains voltage: 230 V / 50 Hz AC

Power consumption: approx. 10 W

Fuse: 250 mA T

Dimensions (W × D × H): 110 × 280 × 50 mm

Weight: 1.5 kg

Information on used equipment

Accessories

power cable