Everybody always says that they'd have to spend incredible amounts of money to better what they have and this is very seldom the case. In fact, often times one can achieve better results for even less money.
Be that as it may, you seem to have a very nice system and the best thing is that it pleases you.
I am especially interested in the Red Wine battery-powered amplifiers, but don't think they have enough power for my present speakers. I've written to the company to see if they might come out with a more powerful amplifier in the future.