I just got them installed and will go through some familiar material this evening and make a quick initial impression.
Here are some photos. They have changed the op amps to a different model, replaced the decoupling caps from AVX to Wima brand. I note they have doubled up on the filter caps combining different values but are the same series polycarbonates at 1% tolerance. They have added a few more electrolytic’s and resistors.
Here are the photo's