Product Specifications
Manufacturer: | Beyerdynamic |
Usually Ships Within: | 1-2 Business Days |
A1 - Audiophile-Quality Headphone Amplifier
With the introduction of the A1, beyerdynamic enters a new area of audio reproduction. After intense fundamental research, beyerdynamic have succeeded in developing a brand new audiophile-quality headphone amplifier, providing precise audio performance even when used with our demanding 600 ohm premium line headphones.With its unique intelligent-circuit concept, the A1 is capable of reproducing an amazingly wide frequency range which stretches way above human perception. As an example, the entire circuit is capable of handling frequencies of up to 96 kHz, which enables the transfer of uncompressed audio from either SA-CD or DVD Audio. A microprocessor- controlled relay allows noiseless switching between two different high quality audio signals and avoids unpleasant clicking when powering the A1 on or off. Underneath the large front-panel-mounted aluminium volume control is a high grade ALPS-potentiometer for smooth volume adjustment. This is just part of the attention to detail that ranges from the outer unit construction to its quality integral components - use of a generously-dimensioned toroidal core transformer, plus a combination of carefully selected components allows even the highest-impedance headphones to be driven flawlessly over the entire frequency range. The provision of a high impedance headphone output ensures that the control range of the volume potentiometer is also ideal for headphones with lower impedance.
Features
- Two stereo inputs for two sound sources, two selector buttons
- Stereo output
- Stand-by button
Specifications
| Input impedance | 50 k ohms |
| Maximum amplification | 18 dB |
| Frequency response | 1 Hz - 100 kHz (-1 dB) |
| THD (total harmonic distortion) | 0.001 % at 170 mW / 250 ohms |
| Channel separation | > 89 dB |
| Output power | 100 mW / 600 ohms, 170 mW / 250 ohms, 150 mW / 30 ohms |
| Signal to noise ratio | > 100 dB |
| Output impedances | line out (depends on the connected device), 100 ohm headphone connector |
| Power consumption | < 15 W internal, controlled power adaptor |
| Dimensions | 250 x 225 x 50 mm |
| Audio connections | headphone out (1/4") jack gold plated 1 line out, 2 line in (gold plated RCA jacks) |
| Supply voltage | 230 V |
| Weight | approx. 2.3 kg |
Beyerdynamic headphones are regarded by some to be the top brand in headphones and headphone accessories on the market today. Beyerdynamic's ability to produce and fine tune their headphones and headphone amplifiers has lead to their success in the headphone market for all levels of customers, whether the buyer is a seasoned audiophile, or someone discovering their new found passion for good sound.