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Home > Beyerdynamic > BeyerDynamic A 1 Audiophile Headphone Amplifier

BeyerDynamic A 1 Audiophile Headphone Amplifier

Product Reference: BD-A1
Brand: Beyerdynamic

Our Price: £699.00
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BeyerDynamic A 1 Audiophile Headphone Amplifier reviews

The A 1 headphone amplifier has been developed to operate headphones with a nominal impedance from 30 to 600 ohms. It provides a better audio quality with a higher volume and stronger bass response. The special circuit design features an amazingly natural sound reproduction with an excellent resolution and spatiality. The entire circuitry is capable to transmit 96 kHz allowing the transmission of the whole frequency response of a SA-CD or DVD audio. Due to a microprocessor-controlled relay two high-class stereo sound sources can be selected silently and unpleasant cracking noise is avoided when turning the A 1 on /off or when changing the audio source. The volume control is made of solid aluminium with a high-grade ALPS potentiometer inside.

The gold-plated RCA connections on the rear allow the connection of audio sources and provide a signal transmission without loss. A large dimensioned toroidal core transformer ensures high fidelity of impulse and dynamics. The combination of selected high-grade components inside the device allows even the highest-impedance headphones to be driven flawlessly over the entire frequency range. A high impedance at the headphones output ensures the control range of the volume potentiometer to be perfect for low-impedance headphones, too. One input is passively connected with the Line-Out of the A 1 to loop through incoming signals even when the A 1 is in stand-by mode. The A 1 has only to be powered up if you really want to enjoy your music using your headphones. Two blue LEDs on the front display the active signal input, another multicolour LED shows the operating status (stand-by or active).

Features

Intelligent circuit design with microcontroller capable of 96 kHz
Volume control with high-grade ALPS potentiometer
Two blue LEDs indicate the active signal input
Multicolour power LED
Headphone socket, 1/4" (6.35 mm) stereo jack
Two stereo audio inputs for two sound sources (RCA)
Two buttons to select the sound source
Stereo output (RCA)
Stand-by button

Specifications

Input impedance	50 kOhm
Maximum amplification	18 dB
Frequency response	1 Hz - 100 kHz (-1 dB)
T.H.D	0.001% at 170 mW / 250 O
Channel separation	> 89 dB
Output power	100 mW / 600 Ohm 170 mW / 250 Ohm 150 mW / 30 Ohm
Unweighted signal-to-noise ratio	> 100 dB
Output impedances	Line Out (depending on the connected device) 100 Ohm headphone output
Power consumption	< 15 W via internal, controlled power pack
Audio connections	Headphone socket 1 Line output, 2 Audio inputs (gold-plated RCA sockets)
Dimensions	250 x 225 x 50 mm
Weight	approx. 2.3 kg

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Specification Sheet

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