Audio GD Master 9 Headphone Amp/Preamplifier

This is a beautiful Audio GD Master 9 Headphone amp. It also can also be used as a preamp in a speaker based system. It's in perfect condition. There are no scratches on the amp or the remote. The entire unit looks new. It hasn't had that much use. It was purchased in 2014. But, most of my listening is in a separate speaker based system. In addition, I split my time between 2 different locations, so use in either location was limited. I am the original owner and the unit has been used in a smoke free, pet free, child free environment.

The Master 9 is a superb headphone amp. It's a Class A design and outputs high power (9 watts into a 40 ohm headphone). It accepts RCA and Balanced inputs and has both RCA and Balanced outputs. Headphone outputs include Single Ended as well as both 3 and 4 Pin Balanced. There is a High and Low gain setting available to better match both more efficient and less efficient headphones.

One of the very useful features of this headphone amp is that the volume control works separately for each input. So if one of your inputs is at a much higher level than another, there's no fear of changing inputs and damaging speakers or headphones due to the volume not being adjusted properly for that input. Please see the manufacturers website or the many positive online reviews for full operational details.
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