Legendary Reference – now consistently developed further

Since 2004, the Linear has been considered a reference among audiophile headphone amplifiers. The Linear II takes everything that made this concept famous and refines it specifically: more transparency, greater detail, and effortless sovereignty even with complex musical passages.

Class-A Output Stage with Low-Z Copper Technology

At the heart of the Linear II is a powerful discrete Class-A output stage, combined with an elaborately constructed circuit board using Low-Z copper technology. This minimizes resistance in the signal path and provides noticeably more dynamics, more precise impulses, and exceptionally stable spatial imaging.

Finest Components for Maximum Musicality

High-quality Mundorf capacitors in the power supply and signal path contribute significantly to the impressive tonal richness and fine resolution. The concept is complemented by the 3S device feet, which effectively decouple the Linear II from mechanical influences and ensure absolute quietness in the sound image.

Versatile – Headphones and Active Speakers

The Linear II not only impresses as a headphone amplifier but also as a high-quality preamplifier. Via the Pre-Out, it can be directly combined with active speakers or power amplifiers. Two parallel headphone outputs also allow simultaneous listening with two headphones – without any loss of sound quality.

Technical Data

Linear II

• Input Impedance: 47 kΩ
• Gain: 0 dB, 10 dB, 18 dB, 20 dB (via DIP switch)
• Frequency Response: 10 Hz (–0.3 dB) to 35 kHz (–1 dB)
• Signal-to-Noise Ratio: > 100 dB at 0 dB Gain
• THD: < 0.001% at 6 mW / 300 Ω
• Channel Separation: > 70 dB at 10 kHz
• Output Power:
  • 400 mW / 60 Ω
  • 200 mW / 300 Ω
• Output Impedance:
  • Pre-Out: 60 Ω
  • Headphone Output: 5 Ω
• Connectors:
  • 2 × Headphone Output (Neutrik, gold-plated)
  • 1 × Pre-Out
  • Gold-plated RCA jacks with Teflon insulation
• Mains Voltage: 240 V AC
• Power Consumption: 10 W
• Dimensions (W × D × H): 110 × 280 × 50 mm
• Weight: 1.5 kg net

FAQ – Frequently Asked Questions about the Linear II

Which headphones is the Linear II suitable for?
The Linear II is suitable for almost all dynamic headphones – from low-impedance models to high-impedance studio headphones.

Can I operate two headphones simultaneously?
Yes. The Linear II has two parallel headphone outputs that can be used simultaneously without affecting the sound level.

Can the Linear II also be used as a preamplifier?
Yes. The Linear II can directly drive active loudspeakers or power amplifiers via its high-quality pre-out.

What is the difference between the Linear II and the original Linear?
The Linear II features a further developed low-Z copper circuit board, higher quality components, Mundorf capacitors and standard decoupling via 3S equipment feet – for more dynamics, quietness and detail accuracy.

Is the Linear II suitable for long listening sessions?
Absolutely. Its neutral, low-distortion tuning ensures fatigue-free listening even over many hours.

Scope of Delivery

• Lehmannaudio Linear II Headphone Amplifier
• Power Cable
• Documentation and User Manual

Lehmannaudio Vertriebs GmbH
Waltherstraße 49 - 51, 51069 Cologne, DE
info@lehmannaudio.com
https://www.lehmannaudio.de
0221 29 49 33 20