Mc C47 or Rotel 1590

You are correct, there is a big difference in price and the reason is Rotel has a conscience and won't charge McIntosh prices for their equipment. And McIntosh can't build their level of quality and performance at Rotel prices. Both brands have very good reputations , performance and build quality. But the value is nested in the selling price, you get what you pay for.

nicely put.. 

agreed....I went from a Rotel RB01092 to a MC252 and am not looking back.  Although, the RB1590 has been getting rave reviews but at $4K retail I would be looking a bit closer at McIntosh. But, I see you are asking about preamps.  I had upgraded my RC1550 to an RC1590 ($1700 retail) and when I got home my wife asked were the McIntosh was, so I returned the preamp, took my RB1582 amp as trade and came home with a MAC6700 - no regrets.  The RC1590 has also been getting good reviews.  

So you had time listening to the 1590 pre + 1582 amp?
Is the  MAC6700 hands down better than that combo?

Theo. are you saying Rotel make good products for the price, Mac is overall better but the markup is higher than it should be?