My friend has the old DMA-200, running with DMC 20 and Quad 2912 speakers, and they sound exquisite. He never had DMA-200 recapped. Since it must be about 30 years old, isn't it a time to recap the electrolytic caps? How much does Spectral charge for recapping and other "refurbishment?" Also he only uses MIT Cables. Can one benefit from the megahertz capability of DMA-200 with a "regular" high end preamp? I was thinking he could add some warmness with a tube preamp. What do you think?