Lehmann audio Traveller in the Test

There are good headphones like sand on the sea, looking for a good mobile amplifier, however, like a diamond pressed by time and pressure. The headphone amplifier Lehmann audio traveller wants to be more than that…

The Lehmann audio traveller raises questions: A battery-powered headphone amplifier, which can operate two low-impedance headphones in parallel, or parallel to connect of a couple of active speakers allows for even a high-impedance headphones, has however no digital input: this is old-fashioned or just consistently?

His sound engineer life, Norbert Lehmann is researching relevant amplifier technologies for headphones and turntables. And these are also already over 25 years. After cube, decade and linear – that dares to many high end and studio equipment – in Bergisch Gladbach-based company with the traveller at last the way on the road and want to unlock to the younger generation of listeners.

The traveller, Norbert Lehmann has combined a variety of useful features that appear useful both at home and on the road. The option to connect two headphones in parallel is particularly appealing for any Hi-Fi fan. Thus, a comparison of the sound can be easily accomplished, because fortunately, even this burden poses no problem for the output stages. Wants to expand the audience, the signal even on a second traveller will pass through, to send music to up to four headphones.

Tech talk

The amplifier built into the sound way completely analogous comes not without digital technology. So does the volume control via a resistance network controlled by microprocessor, which however loss-free and more evenly than a classic potentiometer works.

The technically simplest way Lehmann has not gone: so the omitted Lehmann audio traveller on an over all feedback for the benefit of a zero global feedback designs.

This circuit idea allows the entry level, influence-free power and voltage levels to work from, because that just completely fall away. A design that only works when you know as distortions in the entry level did not arise. The reward of the effort is a clear rauschärmerer background, doing his enlightening effect at quiet to normal volumes.

Know-How

For most people, the hearing on the left differs from that on the right ear. Because Norbert Lehmann has thought and built a Center-adjust, which allows using the push-button adjustment hearing both independently of each other – it is also useful for non-uniformly controlled stereo recordings. Of course to fix the volume also over the front push-button: short depression increased a decibel, a prolonged pressure would exponenzial increase the curve, so that no circumstances, fine – and coarse can be adjusted. Fine thought.

Analog consequence

The traveller on the iPhone had to pass the first test. To do this, it was necessary to maximize the output level on Apple’s Smartphone and to combine the short high-end Jack cable with the Lehmann.

What is surprising is that even on this longer and more elaborate signal path creates the impression of a more accurate reproduction with kontrollierterem draft. And by no means it sounds in the high-frequency so edgy as directly via the fully-controlled iPhone output.

On the contrary: the traveller served the full recording Dynamics – gentle and catchy way. This sounding instruments with full colour and natural spirit. After a while I catch myself doing, how I turn the volume higher in the face of the charm offensive. Lehmann audio traveller is fortunately no matter what genre to hunt through his board trains: the focus remains always on musicality.

High musical addiction factor

If you listen to this really more? It depends on the source. On the iPhone, you can hear nice and full, but “never”! A good source like a HiRes streamers or a CD player the traveller pass through resolution potential – with full bandwidth, always on particularly charming way.

Conclusion

The Lehmann audio traveller is the analog argument contra digital and per connection flexibility with high musical addiction factor.

 

Gallery

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Lehmann Audio Traveller

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