Lehmann Audio Linear USB II

Linear USB II

Sound journey with the ears

Since 2004, the Linear has delighted all music lovers who expect top performance from their hi-fi amplifier when playing headphones. Can this success story be surpassed? And how!

The Linear USB II comes up with a digital-to-analog converter of the latest generation and a completely renewed analog circuit board in brilliant Low-Z copper technology. Physical, rich bass and a delicate resolution across the entire frequency spectrum: you will never again consider your headphones as a stopgap.

The best of both worlds

With your needs in mind at all times, the Linear USB II allows for impressive listening pleasure thanks to three amplification settings - with a wide variety of headphones and a wide variety of sound sources. As a headphone amplifier and preamplifier, it combines the carefully selected components and sophisticated circuit architecture of our audience favorite Linear with the digital world.

Enjoy your music treasures from your PC, Mac or even your mobile phone in audiophile quality. The Linear USB II automatically recognizes an incoming USB audio data stream and does not require an input selector switch. For twice the listening pleasure, our new champion plays with two headphones simultaneously and, as a streaming preamplifier, also gives your active speakers amazing vitality.

Our 3S device feet decouple the Linear USB II from the underground and ensure quiet. Fabulous sound in every situation, always striving for perfection - that is our Linear USB II.

Linear USB II

analog section
Input impedance 47 kOhm
Maximum gain 0 dB, 10 dB, 18 dB, 20 dB selectable via DIP switch
Frequency response analog 10 Hz (-0.3 dB) to 35 kHz (-1 dB)
Signal-to-noise ratio analog > 100 dB at gain +0 dB
Distortion factor < 0.001% at 6 mW/300 ohms
Channel Separation > 70dB/10kHz
Output power 400mW/60 ohms
200mW/300ohms
Output impedance pre-out 50 ohms
Phones out 5 ohms
Connections Audio Neutrik headphone sockets with gold-plated contacts
1 x pre out
2 x phones out
gold-plated cinch sockets with Teflon insulation
Mains voltage connection 240 V AC
Fuse 250mA, T
Power consumption during operation 15 W
Special feature analog circuit board in Low-Z copper
3S device feet
Housing dimensions W x D x H 110 mm x 280 mm x 50 mm
Weight 1.5 kg net

Digital to analog converter
Digital inputs 1 x USB B
Sample rate up to 384 kHz
Resolution up to 32 bits
Formats PCM, DOP 128, FLAC, MP3, WAV
ESS Saber K2M chipset
Analog Filter Silver Mica Capacitors
Max. output level DAC 1.8 V rms.
Special feature automatic switching to the analog input if no digital signal is detected