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Lehmann Audio - Linear USB II - Headphone Amplifier w/ DAC is available to buy in increments of 1

Lehmann Audio - Linear USB II - Headphone Amplifier w/ DAC

Lehmann Audio

Lehmann Audio - Linear USB II - Headphone Amplifier w/ DAC

The Linear USB II comes up with a digital-analogue converter of the latest generation and a fully revised analog board using the high-grade Low-Z Copper technology. Physical, punchy lows and a filigree resolution over the entire frequency bandwidth: you will never again consider your headphones just as a makeshift solution.

Keeping an eye on your needs at any time, the Linear USB II delivers an impressive listening enjoyment due to its three gain settings – even with the most diverse headphones on very different sound sources. As a headphone amplifier and preamp it joins the carefully selected components and sophisticated circuitry of our crowd favourite, the Linear, with the digital world.

Enjoy your musical treasures from PC, Mac or even your mobile phone in audiophile quality. The Linear USB II automatically detects an incoming USB audio data stream and does without an input selector switch. For double listening pleasure our new champion is ready to feed two headphones simultaneously and as a streaming preamp, it also spurs on your active loudspeakers to play with amazing vigour.

3S damping feet decouple the Linear USB II from its base and bring about quietness. In every situation a fabulous sound, always striving for perfection – that’s our Linear USB II.


  • One analog input
  • One USB input
  • Two jack headphone outs
  • Output level adjustable in two steps
  • Automatic input selection
  • SSC damping feet
  • Replaceable power cord
  • Compatible with virtually all dynamic headphones
  • Internal Power Supply
  • Gold plated connectors
  • High quality USB DAC


Input impedance: 47k ohms
Maximum gain: 0dB, 10dB, 18dB, 20dB (selectable via DIP switches)
Frequency response: 10Hz (-0.3dB) to 35kHz (-1dB)
Signal to noise ratio: >100dB @ 0dB gain
THD: <0.001% @ 6mW/300 ohms
Channel separation: >80dB @ 10 kHz
Output power: 400mW/60 ohms
200mW/300 ohms
Output impedance: pre-out 50 ohms
phones out 5 ohms
Audio Connectors: Neutrik headphone jacks with gold plated contacts
1 x pre-out
2 x phones out
gold plated RCA sockets with teflon insulation
Power consumption: 15W through internal, regulated power supply
Digital inputs: 1 x USB-B
Sampling rate: up to 384Khz
Resolution: up to 32-bits
Formats: PCM, DOP 128, FLAC, MP3, WAV
Chipset: ESS Sabre K2M
Analogue filter: Silver Mica capacitators
Max. output level DAC: 1.8V eff.
Special feature: The analogue input is automatically activated, when no digital signal is recognised
Outer dimensions: H 1.7" x W 4.3" x D 11" (H 44mm x W 110mm x D 280mm)
Weight: 3.3 lbs (1.5kg)
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