Headphones amplifiers — Lehmann Audio Linear II Pro

The Linear II Pro is a headphone amplifier from Lehmann Audio, a well-established German manufacturer known for accomplished, considered headphone amplification engineering, built with detailed dual-impedance power specifications. The Linear II Pro brings Lehmann's considered engineering to dedicated headphone amplification.

Key specs that matter

Maximum power is 400mW at 60 ohms or 200mW at 300 ohms. Frequency response spans a wide 10Hz to 35,000Hz within plus-or-minus 3dB. Gain is selectable across four positions - 0, 10, 18, or 20dBu. Total harmonic distortion exceeds 0.003% at 1V RMS into 300 ohms. Signal-to-noise ratio exceeds a strong 108dB. Output impedance is a remarkably low 5 ohms. At 110 x 280 x 50mm and 1.5kg, the Linear II Pro maintains a manageable headphone amplifier chassis reflecting Lehmann's considered German engineering standards.

Sound and use context

Expect exceptionally clean, dependable headphone amplification reflecting the strong over-108dB signal-to-noise figure combined with the versatile four-position gain selection, allowing fine-tuned matching for a variety of headphone impedances.

Pairing

The versatile four-position gain selection accommodates a variety of headphone impedances for optimal sonic matching.

Alternatives

Lehmann's own Linear USB II offers a related model with built-in USB DAC functionality within the same broader headphone amplifier catalogue.