I'm still really jealous of your 810, I bet that thing is awesome. I wish I could find one locally, but for now I'm really happy with the 6X10. And I know what you mean about these things being stupidly loud. With just the 610 the Mpulse 360 is really loud. When I add the 1200 it gets crushingly loud, I'm sure the 610 and 412 are going to be ridiculous together... I'll find out tomorrow. I'm sure the Mpulse 600 is incredibly loud, and I'm saying that as I don't think I'm going to need to upgrade from the 360. Could you maybe share your EQ settings with me? I've found a decent tone out of the tube pre but really haven't experimented with the para eq yet. Also, am I supposed to be able to get a nice tube grind with the gain up? I can turn the gain up pretty far but it just gets a nasty farty tone like my SS amps. I can tell when the gain isn't cranked it sounds a little more tubey though.
The original owner said he had the gear about 4 years, used it about 5 times a year each year to jam with friends, and it's in awesome shape. Should I replace the tubes? How much should I expect that to run me cost wise?
I don't use my semi-para EQ all that much - I can get a really good sound with the passive 3 band: bass @ 1-2 o'clock, treble @ 12 noon, mids @ 1 o'clock for Jazz's, 11 o'clock for P Basses... I typically gig 3 basses in a night - either 2 passives, one active, or 1 passive, 2 actives, so I'll set the 3 band for one of the passives, then if I need anything else for one of the others, I'll use the semi-para for that, and switch it on and off... An example would be that sometimes my actives aren't as mid present as my passives, and tend to disappear in the mix, so I'll boost a little(1 o'clock) @ 120 and 400, with their settings at 1 o'clock and 11 o'clock, respectively... Or, if one of my passives needs a little additional low end, I'll boost a little 40 @ 1-2 o'clock... Switching the Semi-para on and off like that to balance bass changes has worked out really well for me...
Regarding Gain - I run it @ noon for quick clean SS type sound, 1-3 o'clock for some tube action... That amp will never produce the kind of tube grind you can get out of the BB750, just tube warmth and *some* grit - if you're looking for more than that, you'll want to add a pedal... Also, you know that what sounds great by itself *usually* doesn't work all that great in a band setting, and what works well in a band setting doesn't always sound that great *by itself*, right??
Lastly - about tubes: they really don't need to be changed all that often, and aren't that expensive... I tried some JJs in mine, and didn't like them as well as the Mesa tubes, so I went back to them... Best source I know for Mesa tubes is Sweetwater - I think they're around $15 each, and there's two of them in that amp... If it were me, buying a used amp - I'd probably put new tubes in it, and keep the old ones for spares - for peace of mind, more than anything...
Hope this helps,
- georgestrings





I think I've hit on a temporary fix though. Going to add a 400 watt crown to the mix,...signal chain will be, bass, M9 board, left out to aggy into the new PH115, right out to carl martin stomp compressor to the crown, into the 400 watt 8 ohm cab. Should work until I pick up a shuttle 12.0 I think. Anyone tried the 12.0 into a pair of PH115's? Thanks in advance for any input.