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Beyerdynamic A1 (Beyer Dynamic) Professional Audiophile Headphone Amplifier

Premium Headphone Amplifier Designed for Headphones 32-600 Ohm Impedance, Maximum Amplification 18dB

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This item has been discontinued

Beyerdynamic A1 Headphone Amplifier

The A1 headphone amplifier challenges the boundaries of personal audio reproduction. Streamlined by beyerdynamic's research, the A1 headphone amplifier manages frequencies beyond the range of human hearing to render a broad range of uncompressed frequencies flawlessly. The A1's micro-processor-controlled relay allows for noiseless switching between audio signals and prevents clicking when powering the A1. The end result of using the A1 is a listening experience that redefines expectation.

Product Features

  • Microcontroller capable of 96000Hz and intelligent circuit design for crisp sound
  • Volume control with high-grade ALPS potentiometer allows smooth volume adjustment
  • Two blue LEDs indicate the active signal input
  • 1/4" (6.35 mm) stereo jack
  • 2 gold-plated RCA sockets
  • Two buttons to select the sound source

Technical Specifications

  • Maximum amplification: 18 dB
  • Frequency response: 1Hz-100,000Hz (-1 dB)
  • THD: 0.001% at 170 mW / 250
  • Channel separation: >89dB
  • Output power:
    • 100 mW / 600 Ohms
    • 170 mW / 250 Ohms
    • 150 mW / 30 Ohms
  • Signal-to-noise ratio: >100dB
  • Line Out output impedance: 100 Ohms headphone output
  • Audio connections:
    • 1/4" headphone socket
    • 1 Line output
    • 2 gold-plated RCA sockets
  • Dimensions: W 9-3/4" L 8-8/9" H 2"
  • Authorized Internet Dealer
  • 2-Year Manufacturer's Warranty
  • Part Number: 713708

Headphone Amplifier Specifications

Amplifier Style
Some headphone amplifiers are designed to be portable and others are meant to be placed on a desk. This will tell you what style of amplifier this item is.
Digital-to-Analog Converter (DAC)
A Digital-to-Analog converter (also known as a DAC) converts a digital audio signal into an analog signal. This is especially helpful for listen to music from digital sources, such as iPods and smart phones.
Frequency Response
The range of frequencies the amplifier will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
1 - 100000 Hz
THD (Total Harmonic Distortion)
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
Input Impedance
This is the input impedance of the headphone amplifier.
50000 ohms
Output Connection
This is the manner in which the headphone amplifier will output the audio signal.
1/4" Plug
Number of Outputs
Some headphone amplifiers have a built-in splitter so multiple pairs of headphones can be connected to it. The number specified here is the number of headphones that can be connected to the amplifier.
Output Power
This is the output wattage of the headphone amplifier. It is measured in mW.
170 mW
Output Impedance
This is the output impedance of the headphone amplifier.
250 ohms
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.

DAC Specifications

THD (Total Harmonic Distortion)
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Beyerdynamic A1 (Beyer Dynamic) Professional Audiophile Headphone Amplifier