Up grading power amp... Mono blocks or stereo amp?


I am thinking of upgrading my Rogue Audio ST-90 power amp.
My System: Rogue Audio Persious Pre amp, the st-90 powere amp, Krell SACD Standard CD player, Pro-ject 10 Turntable w/ Shelter MK II cartridge, Straight wire Interconects and Speaker cables, And B&W 803s speakers. This amp is nice but I think I could get an amp that is more quite, richer, and a bit more powerful. I was thinking about the Rogue Mono Blocks. What are the advantages/disadvantages of Mono Blocks versus a stereo amp? And yes, I want to stay w/ tubes.
dougdubin
Doug - the Rogue 150's are excellent monos and will be a very nice upgrade for you. They are dead quiet, have great presence and will give you very good, controlled, pitch precise low frequencies - something a lot of tube amps do not do well. The reasons some people shy away from mono amps are needing two amp stands, power cords, wall outlets, etc. ENJOY!
Advantages/disadvantages of monos vs. stereo amps are: Advantage Mono: Better seperation and isolation per channel. Advantage Stereo: Cost.
Now this may seem simple, but I currently replaced my $12K monoblock amps with a $10K stereo amp that just plain sounds better.

In your price range though, I would think that you could find a nice pair of Quicksilver V4 monoblocks that should do all that you ask and be a nice upgrade from the Rogue.

Cheers,
John
read:

http://www.enjoythemusic.com/magazine/manufacture/0708/index.html

You will see why monoblocks are MUCH better

All The Best
Rafael
I love my Rogue Audio 150 monos with my RA 99 pre amp pushing my Martin Logan SL3's. Its not good....Its great. Don't let the price fool you.These baby's rock with the best of them.