SOLD !
This GCHA is a unique version which has XLR balanced input and a power ON/OFF switch at the back panel (see photo). There is another version of GCHA that only takes unbalanced RCA input. I have call PSA several time to confirmed that mine is a fully balanced amp. Users can leave the main switch on all the time and use the volume pot (turn all the way down and click) to switch off only the output stage while the rest of amp is always ready for its best sounding.
And this is my first AMP that brought me into the higher level ground of sound. I really loves this AMP with my DT880/250. The sound stage is deep and wide (and even more so with balanced input). There are lots of music detail and imaging are well defined without having any hint of sibilant. It is also has very dark background. Lots of praise about GCHA with RS1, PS1k, and GS1k, etc.
Some great reviews are here:
PS Audio GCHA mini-review; some initial impressions
modded gcha>ps1k?
I hate to sell this one, but there is really no reason for me to have a third set of system. It is in excellent condition and will be shipped with original PSA box and manual.
I am asking for $450 plus shipping and Paypal fee . US buyers get priority.
This GCHA is a unique version which has XLR balanced input and a power ON/OFF switch at the back panel (see photo). There is another version of GCHA that only takes unbalanced RCA input. I have call PSA several time to confirmed that mine is a fully balanced amp. Users can leave the main switch on all the time and use the volume pot (turn all the way down and click) to switch off only the output stage while the rest of amp is always ready for its best sounding.
And this is my first AMP that brought me into the higher level ground of sound. I really loves this AMP with my DT880/250. The sound stage is deep and wide (and even more so with balanced input). There are lots of music detail and imaging are well defined without having any hint of sibilant. It is also has very dark background. Lots of praise about GCHA with RS1, PS1k, and GS1k, etc.
Some great reviews are here:
PS Audio GCHA mini-review; some initial impressions
modded gcha>ps1k?
I hate to sell this one, but there is really no reason for me to have a third set of system. It is in excellent condition and will be shipped with original PSA box and manual.
I am asking for $450 plus shipping and Paypal fee . US buyers get priority.
Take care of it! 
