Aesthetix Calypso vs. Hovland HP 100

I've heard one and had the other. I won't give an opinion, but I will say if you by a used HP100, make sure It's a later model or you'll need the Volume upgrade@$800. also, the Tape input is the most transparent and not the CD.

Could you tell me what are the pros and cons on both models (sonic wise)?

The Calypso wasn't in my system which is why I didn't give an opinion. It sounds good which is about all I can say. It was compared to an Artemis LA-1, but with some technical issues going on at the time, I once again can't give a meaningful impression.