You might want to try one of the new class D amplifiers such as the ones made by NuForce, Flying Mole, Edge, Rowland, EAR and the other amp companies, that can be placed right next to the speakers, instead of rack mounting.
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The thing most suprising is the good SOUND - and the power that these class D amps deliver.
It's natural to resist change. I wonder how many detractors are 50+ men now set in their audio ways? Some sniping about these amps might be attributed to that?
The H20 is a big beast - about 50 pounds - though nicely built, but more like the amps you might be used to. The H20 has a huge transformer in it.
OTOH, the Nuforces are thin and tiny. The 9b is about 7 pounds per mono channel and only a few inches tall. You can put two side by side on a rack shelf. The CI is more cube sized. The CI D-200 is about 15 pounds each. Almost all of it is power supply - the amp module is about 2x2 INCHES! (How can that be any good? Look at the power you get from a split atom. Not a great analogy, but you get the idea. Size isn't necessarily a limitation.)
I believe this is the cutting edge of amplifier and no doubt soon every amp manufacturer will have their version and interpretation of this efficient amplifier.