Sennheiser HDVA 600

I am selling my little used HDVA 600 headphone amplifier. It is in excellent condition and has no issues with the sound and no damage or scratches. It comes with the original box, manual and a standard power cable. The pictures show the conservatively rated very good condition.

I really liked the sound, particularly using symmetric in and outputs, but still prefer my big speakers over headphones, so did not use the HDVA 600 often enough. 

Quoting from the manufacturer's website is the description below:

Sound can be perfected with Sennheiser s HDVA 600. Delivering authentic sound in its purest form, listeners are treated to a world of sheer listening pleasure. Years of knowledge in audio engineering and innovations in acoustic amplification, resulted in the creation of the HDVA 600. The consistently symmetrical signal processing and extremely low harmonic distortion guarantees an absolutely precise sound. Also, thanks to their pre-amp performance, they are easy to adjust and be connected directly to speakers for optimum audio amplification. In essence, the HDVA 600 provides a spectacular listening experience when paired with any Sennheiser s audiophile headphones.

Product Features

• Consistently symmetrical signal processing for maximum sound quality
• Symmetrical inputs and outputs simplify integration into a system
• High-end ALPS quadruple potentiometer achieve perfect channel equality
• Variable gain factor (five stages) for optimized use of low impedance headphones
• Sophisticated metal housing to protect against signal scatter and vibration
• Solid controls turned from solid metal, providing the utmost in long-term stability
• Designed and manufactured in Germany

Specifications

Frequency response - 0.3Hz to 100kHz (-3 dB)
THD, total harmonic distortion - <0.001
Power Consumption - 9W
Input Voltage Range - 100-240 V AC / 50-60 Hz