Lehmann Linear II Headphone Amplifier
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Everything which has made the Linear headphone amplifier a legend already since 2004, has now become even better: the Linear II lifts the qualities of our reference model to a new standard. Experience detailed lucidity when playing your music, effortless lightness even with high signal levels and the low-artefact reproduction of complex music pieces. The Linear II redefines vividness in the reproduction completely. That way you can enjoy even the longest listening sessions without fatigue and with greatest pleasure.
In connection with the elaborately designed pc board in Low-Z copper technology the powerful class-A output stage plays even more dynamically and takes you a big step closer to the music. Mundorf capacitors in the power supply and in the signal path deliver an impressive room imaging and transient response. 3S device feet ensure maximum mechanical quietness for the Linear II.
Not only while enjoying music with one or two headphones, but also when connected to active speakers or a power amplifier, the Linear II delivers its ultimate performance. Allow yourself to be surprised by a punchy, authentic sound which is unique for a device of this size!
Linear D II
Since Lehmannaudio turned the “emergency exit” of classic hi-fi amplifiers into a gate to a new musical perception with their Linear back in 2004, headphone outputs with frustrating sound have become a thing of the past. The Linear D in its topical mk II version demonstrates that there’s always room for improvement: its digital-analogue converter of the latest generation and its thoroughly revised analogue board let you experience all-new horizons when listening to your favourite music – goose bumps guaranteed.
The Linear D mk II is the perfect complement to streamers and CD players. It recognises digital signals, automatically selects the optimal input and needs no input selector. The Sabre DAC from ESS on the quad-layer circuit board, which has been optimised against HF interference, offers both digital S/PDIF and Toslink inputs.
Low-loss mica capacitors on the mainboard and in the converter analogue filter as well as ultra fast amplifier stages on the converter board guarantee reference quality. The thoroughly revised analogue board in Low-Z Copper provides as yet unheard-of dynamics. Owing to three settings the Linear D mk II adapts to the most diverse headphone-source combinations, and with one analogue and two digital inputs it also delivers a breathtakingly expressive performance as a streaming preamp on active loudspeakers.
The Linear D mk II makes people happy who want to enjoy music in an intense and pristine way and brings together those who share musical enjoyment: two parallel outputs on the discrete class A solid-state output stages powerfully feed two headphones of equal impedance without compromising the listening experience. 3S absorber feet decouple the Linear D mk II from its base and provide calmness. So the Linear D mk II sounds even more sculptural now: with lush, yet never ostentatious lows, delicate resolution and zero-gravity elegance over the entire frequency range.
Turn the massive, damped potentiometer of the Linear D mk II. Rediscover your analogue and digital musical treasures!
Linear USB II
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.
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.
Features - Linear II
- Analogue board in Low-Z Copper for enhanced dynamics
- Maximum gain adjustable up to 20 dB
- Discrete zero global feedback Class A output stage for open and natural sound
- Two headphone connections with goldplated Neutrik headphone sockets
- Oversized internal power supply
- Low-loss MKP capacitors for the audio path
- Drives long cable runs when used as single source preamplifier
- Aluminium face plate available in silver, black or chrome
- Made in Germany
Features - Linear D II
- High-resolution ESS Sabre K2M DAC with two digital inputs
- Automatic input signal prioritisation for more user convenience
- Maximum gain adjustable up to 20 dB
- Mica capacitors in the analogue filter and on the mainboard for optimum transient response
- Analogue board in Low-Z Copper for enhanced dynamics
- Discrete class A output stage for an open and natural sound
- Two Neutrik headphone sockets with gold-plated contacts
- Pre-out for use as preamp
- Oversized internal power supply
- Aluminium face plate available in silver, black or chrome
- Made in Germany
Features - Linear USB II
- Reference class headphone preamp for all dynamic headphones
- Maximum gain adjustable up to 20 dB
- Discrete class A output stage for an open and natural sound
- PC board in Low-Z Copper technology
- Two Neutrik headphone sockets with gold-plated contacts
- USB DAC with auto input selection
- Oversized internal power supply
- Low-loss MKP precision capacitors
- Used as a streaming preamp, it can easily drive long cables
- Aluminium face plate available in silver, black or chrome
- Made in Germany
Specifications - Linear II
| 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 | > 70 dB at 10 kHz |
| Output power | 400 mW/60 ohms 200 mW/300 ohms |
| Output impedance | pre-out 60 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 | 10 W |
| Outer dimensions W x D x H | 110 mm x 280 mm x 50 mm |
| Weight | 1.5 kg netto |
Specifications - Linear D 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 | analogue board in Low-Z Copper 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 TOSLINK (automatically prioritised) 1 x RCA 75 ohms |
| Sampling Rates | 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 192 kHz |
| Resolution | 24 bits |
| 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 |
Specifications - 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 |
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About
Lehmannaudio Vertriebs GmbH was originally founded in 1988 by Norbert Lehmann, a young audio engineering student, in Cologne, Germany. Through those early days, Norbert developed a deep understanding of how the quality of certain electrical devices affected the end sound-performance of an amplifier. The cumulative result of this formative period was manifest in 1995, when Lehmannaudio released the Black Cube phono stage.
The Black Cube is now a cult object in the audiophile market. Still available today in almost the same form as the original model, the Black Cube took components more commonly found in studio mixing desks and brought them to a hi-fi product. The result was an affordable phono stage that sounded truly sublime. In 2004, the next icon was born; the Linear Headphone Amplifier (originally called Black Cube Linear) again took studio principles and brought them to the hi-fi sector, allowing hi-fi fans to experience the true engineering ability of Norbert Lehmann.
Since 2004 the phono stage and headphone amplifier sectors have been happy homes for Lehmannaudio products, and now the company can boast a range of products in each sector that are suitable for all budgets and technical requirements.