The question wasn't for a recommendation with a budget, it was about obtaining what could be achieved using surround sound equipment. For "top class" stereo, I would expect the same stratospheric manufacturers to be listed. Or put another way, if I were to list say a Yamaha or Marantz processor the response would be a post that the performance was nothing like that you'd get from a McIntosh, Lyngdorf or Bryston stereo setup. As can be seen from my sig, I too cannot aspire to this level.£12,000. £20.000 and £18.000.
For the processors alone.
Add in comparable fortunes for suitably stratospheric power amps and speakers and the least expensive of the bunch comes out at at least 28 to 30 thousand pounds.
And then on up to fifty grand or so.
Therefore not realistic for, at a rough guess, around 92.7654% of the population.
That said, anybody prepared to spend, say, £1K on a stereo preamplifier must expect to pay £4K for an 8 channel equivalent. Seen in that light, USD 8K for the 15 channel McIntosh MX123 (i.e. ca. USD 500 per channel) doesn't seem all that ridiculous (not that I understand why that works out to GBP 10K, but that's a different question; over here it goes for CHF 10,400 - also too high, but not as bad as UK).