Location of compoments.

Leaving the amp in between is actually a reasonable compromise. It is better to have nothing… no amp at center. Typically that would be mean running dual mono amps behind or adjacent behind the speakers. So, if you can’t afford monoblocks, then a centered stereo amp is preferred, because it is better to do the long interconnect run between preamp and amp than to have long speaker cables. Systems tend to be more favorable sounding with short speaker cables with a centered amp than with long speaker cables.

But overall… this is a pretty minor sonic difference in most folks systems. I have not done it in my current system. If I upgrade again, I will.

Most speakers require empty space between speakers and dampened front walls. Normally I can close my eyes and hear the shape of the rack in between… it kills the imaging. I’ve tried fairly low racks. But the best is only the amp on a low amp stand.

Spit between the preamp and amp. Yes, it’s painful, putting a lot of money into the long interconnects but can be worth it. If you have found the perfect interconnect to go between preamp and amp… then save up, or just bite the bullet and order a long pair.

You can create a good sounding system or a great sounding system. The difference is effort and expense in the small stuff. For most of us, we get the components right, then the positioning, then cables, direct lines, treatments, lifters. Each makes another small contribution… ultimately leading to a spectacular sounding system.

Some folks are happy with very good sounding. That is fine. The real question is which kind of person are you? If you get a peak experience from achieving exquisite sound then all the extra work and expense is more than worth it.