This is the second time I've owned one of these and I don't know how it works but the increase in dynamics and clarity is immediately apparent. If you look up the 6 moons review you'll see how good they think it is.
I'm tempted to keep it for a future system but I need to reduce my system at the moment.
The pictures show the basic details. There is some case damage around the screw holes but other than that it looks pretty good. Does that make it a 6 or a 7 /10 I'm not sure. Otherwise it looks in decent condition.
Comes without a box or manual or cable.