Classe Sigma SSP and Sigma amp 5


Any owners of these units that can pass on their overall assessments? They look like great candidates for a home theatre core at reasonable prices if top notch. Any knowledgeable comments would be appreciated.
4425
Out of curiosity, I am still using an older 5 channel titan amp from sim audio which I love.  Any insight if this will match well with a sigma ssp?  I'm reluctant to get the classe amp with my current one doing it's job well.  Any insight appreciated!
I figured it would be technically fine but wasn't sure if there were parameters that made a particular processor a good fit for a particular amp?  Sounds good though, I am definitely going to check the sigma out