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Beyerdynamic A 1 Stereo Headphone Amplifier
  • Beyerdynamic A 1 Stereo Headphone Amplifier
  • Beyerdynamic A 1 Stereo Headphone Amplifier
 

Beyerdynamic A 1 Stereo Headphone Amplifier

Manufacturer: Beyerdynamic

Item #: BYD-A1-HA   •   MFG #: A 1 HEADPHONE AMPLIFIER

 

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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 goldplated 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
     
  • 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 Ohm
    • 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
    • Supply voltage . . . . . . . . . . . . . . . . . 110 - 120 V/AC, 50/60 Hz
    • 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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