Nice review! Very interesting unit, and love the modular upgrade options!

I think it's only good as a DIY experiment base. But a complete pain and nuisance for any audiophile seeking musical enjoyment 

@Onny Izwan 'musical enjoyment' can be a different thing to different parson's ears, and that's where A10 can show its strength by changing its tuning. Of course, for the less adventurous type, the stock opamp are still pretty soild.