Hi there, unfortunately nothing from this group but I found some info on my own other people and some presonal reviews and found out that these amps are top notch in the sense that they output quality power with out distortion and the supply and parts are also very high end so the amp is very stable through out the range from RMS to dynamic peaks it performs identical. As for the sound supposable it is ultra clear and so it is to be an excellent match to yamaha receivers as I have. Beyond this I will review it more once I recieve my order> I purchased one of Ebay recently but has not come yet because it is by Ground the shipping was a little steep because of the weight so I chose ground. (waiting.......) let you know soon....
