Beyerdynamic A 20 716014 Leaflet
Product codes
716014
A 20
Headphone Amplifier
Order # 716.014
beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E1 / A20 (05.13)
Non-contractual illustrations. Contents subject to change without notice. E1 / A20 (05.13)
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T
ECHNICAL
S
PECIFICATIONS
Input impedance . . . . . . . . . 25 kΩ
Maximum amplification . . . . 18 dB
Frequency response . . . . . . . 10 Hz - 100 kHz (-1 dB)
T.H.D. . . . . . . . . . . . . . . . . . 0.01% at 170 mW / 250 Ω
Channel separation . . . . . . > 80 dB at 1 kHz / 250 Ω
Output power . . . . . . . . . . . 100 mW / 600 Ω
Maximum amplification . . . . 18 dB
Frequency response . . . . . . . 10 Hz - 100 kHz (-1 dB)
T.H.D. . . . . . . . . . . . . . . . . . 0.01% at 170 mW / 250 Ω
Channel separation . . . . . . > 80 dB at 1 kHz / 250 Ω
Output power . . . . . . . . . . . 100 mW / 600 Ω
170 mW / 250 Ω
150 mW / 30 Ω
150 mW / 30 Ω
Signal-to-noise ratio . . . . . . > 100 dB (unweighted)
Output impedance . . . . . . . Headphone output 100 Ω
Input voltage . . . . . . . . . . . . 100 - 240 V AC / 50/60 Hz
Power consumption. . . . . . . < 10 W via integrated switching
Output impedance . . . . . . . Headphone output 100 Ω
Input voltage . . . . . . . . . . . . 100 - 240 V AC / 50/60 Hz
Power consumption. . . . . . . < 10 W via integrated switching
power supply
Audio connections. . . . . . . . 2 headphone sockets,
1/4" stereo jack (6.35 mm)
1 line output,
1 audio input via RCA phono sockets
1 line output,
1 audio input via RCA phono sockets
Dimensions
Housing only . . . . . . . . . . . . 164 x 194 x 48 mm
Housing incl. button,
rubber feet, RCA
phono sockets . . . . . . . . . . . 164 x 212 x 55 mm
Weight . . . . . . . . . . . . . . . . 1640 g
Housing only . . . . . . . . . . . . 164 x 194 x 48 mm
Housing incl. button,
rubber feet, RCA
phono sockets . . . . . . . . . . . 164 x 212 x 55 mm
Weight . . . . . . . . . . . . . . . . 1640 g
D
ESCRIPTION
The A 20 headphone amplifier is used to operate up to two head-
phones with a nominal impedance from 30 to 600 ohms.
The power amplifier, of a discrete design, and the combination of
selected high-grade components inside the device allows even
high-impedance hi-fi headphones to be driven flawlessly over the
entire frequency range. The A 20 supplies an impressively natural
and transparent sound with excellent resolution and spatiality.
The volume control adjusts the volume for both headphone
outputs, which are connected in parallel. Its handy button is made
of solid aluminium and hides a high-grade ALPS potentiometer with
smooth volume values.
Gold-plated RCA phono sockets on the rear are used to connect
the audio source and allow a signal transmission without loss. The
input is looped-through, which means audio signals that are present
at the INPUT sockets are routed to the OUTPUT sockets, even when
the device is switched off. Due to the hard-wired design there is no
loss.
The high-quality metal housing is made of brushed aluminium and
protects against signal scattering and vibration.
Due to the internal wide-range power supply the A 20 can be
operated with 110 V/60 Hz and 240 V/50 Hz, allowing for global
use.
phones with a nominal impedance from 30 to 600 ohms.
The power amplifier, of a discrete design, and the combination of
selected high-grade components inside the device allows even
high-impedance hi-fi headphones to be driven flawlessly over the
entire frequency range. The A 20 supplies an impressively natural
and transparent sound with excellent resolution and spatiality.
The volume control adjusts the volume for both headphone
outputs, which are connected in parallel. Its handy button is made
of solid aluminium and hides a high-grade ALPS potentiometer with
smooth volume values.
Gold-plated RCA phono sockets on the rear are used to connect
the audio source and allow a signal transmission without loss. The
input is looped-through, which means audio signals that are present
at the INPUT sockets are routed to the OUTPUT sockets, even when
the device is switched off. Due to the hard-wired design there is no
loss.
The high-quality metal housing is made of brushed aluminium and
protects against signal scattering and vibration.
Due to the internal wide-range power supply the A 20 can be
operated with 110 V/60 Hz and 240 V/50 Hz, allowing for global
use.
F
EATURES
• Power amplifier of a discrete design in an all-metal housing
• Two headphone outputs connected in parallel
• Volume control for both headphone outputs
• Looped-through input (hard-wired) to connect signal sources
• Two headphone outputs connected in parallel
• Volume control for both headphone outputs
• Looped-through input (hard-wired) to connect signal sources
(CD player, DVD player) and amplifiers
• Internal wide-range switching power supply for worldwide use
• Supplied with two different power cables
• Supplied with two different power cables
(1 x type E+F (CEE 7/7) and 1 x type B)
S
UPPLIED
A
CCESSORY
• 2 x power cables (1 x type E+F (CEE 7/7) and 1 x type B)
Front View
Rear View