With the A 20 you will rediscover your dynamic headphones.
This new headphone amplifier from beyerdynamic is perfect for all headphone applications and provides dual outputs for shared listening with a partner.
The circuit of the A20 is designed based on our legendary A 1 reference headphone amplifier. The discrete output stage provides plenty of power even for high-impedance headphones while the dynamic, open and precise sound sets the A 20 apart from what can be found in the normal output stages of regular amplifiers or receivers. This is confirmed by its first-class circuitry and excellent technical specifications that provide a balanced sound for long periods of comfortable listening.
Made of brushed aluminum, the housing of the A 20 is especially solid and resonance-free. Due to the innovative chassis design, no screws are visible on the external surfaces. Equipped with an original ALPS potentiometer for variable volume control, a knob turned from solid aluminum completes the attractive yet robust look of this amplifier.
With a high-gain RCA input, the A 20 works easily with most sources. The input signal can be looped through and is entirely free from signal-loss thanks to the hard-wired RCA output. Due to the built-in power supply, which is connected via a detachable power cord (supplied), no external power supply is needed avoiding disturbing background noise. Thanks to the dual headphone jacks on the front, two people can listen to the A 20 together without an adapter cable.
Peter CariniSales ManagerConsumer Business Unitbeyerdynamic Inc. USA56 Central AveFarmingdale, NY 11735Office 631.293.3200 ext.17 Fax 631.293.3288 Mobile 516.848-3902 firstname.lastname@example.org
iPad Welt 02/2014Title: Top sound for the iPadAuthor: Stefan v. Gagern
Translated from the original German article
The effect with the A 20 is really amazing: When the headphone is connected to an iPad or other music sources for the first time, you will experience your headphones in a completely new way. Suddenly each instrument sounds more powerful, natural and the sound is more spatial.
[...]The unsophisticated, noble design of brushed aluminium is also impressive. Rating 1.1
Fidelity 01/2014Title: Without fancy gadgetryAuthor: Jochen Reinecke
Translated from the original German test report
[...]How does it sound? Admittedly, I wanted to sound this out and tested it with a headphone which easily costs twice as much as the A 20 (...).[...]Indeed, this mismatch suited each other right from the start. Stéphane Huchards’ "Panamerican" album was played, thrilling fusion music with a focus on drums (...). The sound of the A 20 is sparkling clean and fresh. Intense drum passages are passed on to the headphone without delay which is impressive due to its very clear, transparent and detailed sound.[...]Short and green: The beyerdynamic A 20 operates according to the slogan “We are doing what we can“—not more, not less, no fancy gadgetry, but with verve and enthusiasm. Great.
www.macrewind.de 09/2013Title: Test: beyerdynamic A 20 Headphone amplifierAuthor: Frank Borowski
Translated from the original German article[...]The result, especially with the T 90 is, well how to describe it best? … simply perfect! The explosive dynamic of the T 90 is clearly heard as well as the superb warmth and transparency. The bass is absolutely deep and can be heard to the last vibrations. Another strength of the Tesla headphones, to which the T 90 also belongs, is that they can reproduce reverberations of drumheads and string instruments absolutely authentic giving them a special natural character. The A 20 supports this property with a persistent monitoring of the connected headphones. [...]Therefore, the beyerdynamic A 20 is the new reference of its class.
Audio 08/2013Title: A comfy placeAuthor: Christine TantschinezTested: five headphone amplifiers Mikromegamyzic, beyerdynamic A 20, Musicalfidelity HPAP, Teac HD-501, Sennheiser HDVD 800
[...]The similarity to the A 1 was not only visible, but could also remarkably be heard. The small beyerdynamic amplifier played broad and clean sounds, especially when using headphones with 300 ohms or more. From the drums and synth mix of “Me and My Drummer” to the concert of Trondheim Solistene, it always remained smooth in all voice ranges, great in the reproduction and reliably stable to the deepest frequencies.Sound Quality: 100 pointsPrice/Performance: Excellent