Beyerdynamic A 20 Headphones Amplifier, Silver

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About Beyerdynamic A 20

The A20 headphone amplifier from beyerdynamic is perfect for all headphone applications and provides dual outputs for shared listening with a partner.

Superior Sound
The circuit of the A20 is designed based on legendary A1 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.

High build-quality and nice looks
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.

Simple and Flexible
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.

Beyerdynamic A 20 Features

  • Two 6.35 mm headphone outputs
  • Elegant and solid all-metal housing
  • Particularly open, transparent sound
  • Also suitable for 600 Ohms headphones

Beyerdynamic A 20 Specifications

164 x 212 x 55 mm
Frequency range
10 Hz - 100 kHz (-1 dB)
0.01 % at 170 mW / 250 O
Maximum output power
170 mW / 250 O
Unweighted signal-to-noise ratio
>100 dB (unweighted)
Channel separation
>80 dB at 1 kHz / 250 O
Headphone outputs
2 stereo jack outputs 6.35 mm (1/4") in parallel mode
Analog inputs
1 pair RCA
Analog outputs
1 pair RCA
Net weight without packaging
1640 g
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