You might be getting that result, but it's not the 275's fault. More info is needed -- preamp? speakers?
Sound of Mcintosh MC275 vs. MC7205 thx
Hi Folks-
I've been using an Mcintosh MC7205 solid state amp and love it - just having been using it as a stereo amp until I get the rest of my speakers. I have an MC275 Mk4, which I was going to use for my reference system, and hooked it up to compare it's sound with the MC7205. I was surprised to find that I much prefered the sound of the MC7205. Channel separation and soundstaging seemed much better, and the bass was much more lush. Perhaps there may be some cabling issues with my MC275 that I need to upgrade. For a preamp, I am using a Rotel RSP-1068.
I would appreciate any of your thoughts on this. I am kind of befuddled, because I thought the MC275 would sound as full and lush as the solid state MC7205.
- thanks for any wisdom,
Ted.
I've been using an Mcintosh MC7205 solid state amp and love it - just having been using it as a stereo amp until I get the rest of my speakers. I have an MC275 Mk4, which I was going to use for my reference system, and hooked it up to compare it's sound with the MC7205. I was surprised to find that I much prefered the sound of the MC7205. Channel separation and soundstaging seemed much better, and the bass was much more lush. Perhaps there may be some cabling issues with my MC275 that I need to upgrade. For a preamp, I am using a Rotel RSP-1068.
I would appreciate any of your thoughts on this. I am kind of befuddled, because I thought the MC275 would sound as full and lush as the solid state MC7205.
- thanks for any wisdom,
Ted.
Showing 5 responses by nsgarch
Lovepianos, Tennis is quite right about the stock tubes (horrendous ;--) But they're not so bad you couldn't enjoy the amp's wonderful attributes. If your result is missing both image (higher freq) and bass, I'm inclined to believe there might be an impedance mis-match between the Rotel and the 275. That said, the 275 has a fairly high input impedance (I think! It doesn't say in the manual) and should accept most preamps. If you want to try other tubes, see my report on tube rolling w/ the MC275 at: http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1175279050&openmine&zzNsgarch&4&5#Nsgarch . |
Tennis, the most sonic bang for the buck is replacing the 12AX7's -- V-1,2,5. (If you run balanced, V-1 is out of the signal path, that's why I asked ;--) For a beautiful, well rounded sound with air, sparkle and detail, I'd recommend Telefunkens. If you want a little more dynamic, muscular sound (but still refined) I suggest the RCA blackplate-longplates. If you want to change the 12AT7's V-3,4,6,7, I'd suggest Telefunkens (RCA's there are a bit too much of a good thing.) If you want to change the power tubes, the KT88's, either the Penta KT88SC's or the Russian re-issue Gold Lions seem to be the most popular. Both provide a little more power and dynamics. I prefer the Pentas. |
Tennis, I'd leave any KT88 changes for last (if at all). Now if what you're after is slow and syrupy (we say 'schmaltzy' in my neighboorhood ;--) I think you can't do better than NOS Mullard 12AX7's (the UK ones, not the Holland ones). And if you like what they do in the AX spots, and I think you will, I have 2 matched pair of Mullard 12AT7's I'd be willing to offer you. I don't have any Mullard 12AX7's unfortunately, or I'd let you try a set. . |