Unless you really have such high output for all channels, it seems to me the amp10 is not a good choice just because it physically matches the AV10. There are other class D amps with comparable output capabilities or even better, such as many Purifi or Hypex based amps. Nord, Audiophonics, buckeyeamps are some good examples:
This is a review and detailed measurements of the Nord One Hypex NC500 class-D module based power (speaker) amplifier. It is on kind loan from a member who recently purchased it. Nord is a British company so lists the cost of the Nord One as £ 979 or US $1,250 as of this writing. For that...
www.audiosciencereview.com
The amps you are using will likely sound very similar to the amps mentioned, but they may be noisier if you have a very quiet room. It is not that they are noisy amp, not at all, but those class amps mentioned are very quiet, based on specs and measurements.