Beyerdynamic A 20 Particularly Open Transparent Sound Headphone Output Amplifier (A20) Miscellaneous Woodwind Accessories Features a M key design

Features a M key design which you can use to quickly switch between three pre-stored sounds

the ULTRA-DI DI20 delivers exceptional sound

which is "solid as a rock

Distortion (Brown Anger): If you prefer high gain distortion with a Classic British flavor

Powerful Amplifier and Driver

Beyerdynamic A 20 Particularly Open Transparent Sound Headphone Output Amplifier (A20) Miscellaneous Woodwind Accessories Features a M key designBeyerdynamic A 20 Particularly Open Transparent Sound Headphone Output Amplifier (A20) A TRUE CHAMPION IN COMPACT FORMAT A headphone amplifier for demanding music lovers The headphone amplifier A 20 is a true champion in a compact format. The dynamic, open and precise sound sets it apart from what can be found in the normal output stages of regular amplifiers or receivers. It is the perfect choice for all music lovers who want to get the best out of