The A 1 lets your high-end headphones unleash their full performance reserves and gives them independence from the sound and volume influences of other devices in the audio system.
The A 1 is specially harmonised to the needs of audiophile-quality headphones from 32 to 600 Ohms and stands out for top precision and famous made in Germany craftsmanship. The generously dimensioned power adaptor with a toroidal core transformer ensures powerful deep bass reproduction no matter what the situation. The ultra-linear frequency response of up to 100 kHz makes the A 1 especially suitable for the reproduction of high-definition media like SACD and other HD audio sources.
On the inside, the A 1 is hand-built from discrete electronic components. The front panel and volume control are produced from solid aluminium, with an ALPS precision potentiometer used to control volume. The A 1 has two separate inputs, with silent push buttons for switching between them. Input 1 features additional output jacks for problem-free integration of the A 1 into existing signal channels.
"The combination of selected high-grade components allows even the highest-impedance headphones to be driven flawlessly over the entire frequency range."
"... the A1 seems to have as much or more output capability than any amp weve had around ..."
"... the A1 has a sense of dynamic ease that is consistent with the observation that it drives all sorts of headphones easily."
"If high output impedance works for your headphones, and you yearn for a lively but not edgy sound, I think youd really enjoy the A1."
(AVguide.com, Playback 32, 06/2010)
"Against its rivals, who often seek a mellifluous, valve-like sound, the Beyerdynamic A1 has studio-like neutrality as its design concept."
"Its not just the sound the A1 makes that impresses; its also the silence. Given a suitable recording, this headphone amp recreates inky depths of silence thats the preserve of the very best amplification."
"Whatever the price of headphone, the A1 seems to extract the very best from it in terms of separation and ultimate width of sound."
Ultralinear frequency response
Maximum power for headphones with 32 to 600 Ohms
Volume control with ALPS potentiometer
Two stereo inputs, one stereo output (Chinch)
Headphone connector 6.35 mm with gold plated contacts