Linear USB II Headphone Amp

Since 2004 the Linear has thrilled all music lovers who expect their hi-fi amplifiers to perform at their best also with headphones. Can this success story still be surpassed? Yes, it can – and how!

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.

Best of both worlds

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.

Analogue section    
     Input impedance:   47 kohms
     Maximum gain:   0 dB, 10 dB, 18 dB, 20 dB, selectable via DIP switches
     Frequency response:   10 Hz (-0.3 dB) to 35 kHz (-1 dB)
     Signal to noise ratio:   > 100 dB at gain 0 dB
     THD:   < 0.001 % at 6 mW/300 ohms
     Channel separation    > 80 dB at 10 kHz
     Output power:   400 mW/60 ohms, 200 mW/300 ohms
     Output impedance:   pre-out 50 ohms, phones out 5 ohms
     Connectors audio:   Neutrik headphone jacks with gold plated contacts
          1 x pre-out
          2 x phones out
          gold plated RCA sockets with teflon insulation
     Power consumption:   15 W through internal, regulated power supply
     Special feature:   
          PC board in Low-Z Copper technology, vibration-absorbing 3S Device Feet
     Outer dimensions (W x D x H):   110 mm x 280 mm x 44 mm (4.3 x 11 x 2 in.)
     Weight:   1.5 kg (3.3 lbs.) net

Digital-analogue converter    
     Digital inputs:   1 x USB B
     Sampling rate:   up to 384 Khz
     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:   1.8 V eff.
     Special feature:   
          The analogue input is automatically activated, when no digital signal is recognised