Perrew said:
"I tried different amps with VTL, no change. Used Transporter direct to Spectron, that lowered the noised a lot. Still Id want just two boxes, one amp and one source=>1 IC, 2PCs and SC i.e. minimum cables."
Yes, there's a lot to be said for a two-box system, particularly with Class D. With my Rowland Continuum 500, the incredibly sturdy chassis, short point to point wiring, physical isolation of components and, most importantly perhaps, Power Factor Correction (presenting an even load to the main and converting AC to 380V DC) leads to an ultra-quiet system.
Class does introduce EMI/RFI into your environment. If you've got a digital source, like a CDP, that introduces more and your general envirnonment may or may not be loaded with RFI. These factors make balanced mode, chassis design and circuit design critical to quiet operation. An integrated designed with all these factors in consideration gives you an elegant and, in the case of the C-500, a powerful, musical solution.
Dave