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McIntosh MC275, enough power?

I'm contemplating an amp upgrade to the MC275 or 252 (ss) to drive my B&W 804s. Will also run a Rel Storm III sub. I love the sound of the 804s & 275 combination, but I am not able to bring it home for a demo.
At some other post somebody suggested the 275 might be underpowered for the size of my room and I might want to look into the 252. Room is 33' L x 15' W x 8' H.

I checked this SPL calculator http://myhometheater.homestead.com/splcalculator.html
While it suggests the 275 would have enough power, I'm puzzled because it doesn't take into consideration room size.

Comments, thoughts, insights? All very welcomed!

BTW, side question: any issue with integrating tube amps and a SS-driven sub?

Thanks
lewinskih01

Showing 1 response by rwd

rwd
695 posts
 
I have two Mac 275 version v. I am told that the newer models are more powerful then the older ones by 15-20 watts. With that said I listened to one in my system (only driving the top end of my Infinity RS1B's and then hooked up the second. I didn't see a major difference but I want to confirm that with only one Mac 275 driving the top it had enough power. I agree with Neil....go and try one.

P.S. Neil...I am beginning the tube rolling with Telefunfen's 12AX7's first.

Rick (RWD)
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