Kremlin- congrats on the new amp! I think you're gonna dig it! SO MANY tones are available....wow. Anyway, here's some more info for ya:
Chris is correct- you can leave Power Amp B un-jacked. The TBR Series amps have internal switching that automatically shuts off the unused power amp. This is as per the manual, and as per my own discussions with Mr. Rivera himself (and Eric, the other TBR Master at Rivera).
Just make sure you plug into the jack that says "Use First" on Power Amp A. If the printing is gone on the back of your amp, CLICK HERE
, and you'll see which one to use first.
Print the manual directly from the site. Trust me on this:
for the manual. It's about 30 pages, but well worth it.
For spreaken cable, I'd suggest anything that's nice and thick. :-) I have a TBR-2SL, so with 320W at my fingertips, I went with a nice thick cable. I don't remember where I got it (Don't tell anyone, but I think it was a GC in NY...). For the TBR-1SL and -1M, I'd suggest a nice medium-duty cable. If the connections on your cable are sketchy, or could possibly short out, DON'T use it. Just replace it, or repair the connections. Few things are worse than being in the middle of that awesome solo in front of all those hotties, when your spreaken cable shorts out and the amp shuts down. :-)
Regarding the gain: Check the 12ax7's in there. If they're crap, or you got them from GC or SA, It's time to invest in some new ones. I recommend www.TubeStore.com
, but there are plenty of reliable sources for GOOD, tested, tubes. My experiences with TubeStore.com have been outstanding.
Regarding cabinets: Chris hits the nail on the head here too. Rivera TBR Series amps are VERY cabinet picky. They sound great thru one 4x12, then like poo on a sick thru another 4x12. They can even have the same spreakens, and get a different sound. It's kinda creepy. :-) It's a pain in the ass, but....if you can....try out the TBR with as many different cabs as you can. Some 2x12's will work; some 4x12's will work. It's really your call. Like Chris stated, Rivera cabs work really well with Rivera gear. If your Mesa's are workin' well, rock on. Maybe save some pennies and keep an eye out for some Rivera cabs on FleaBay or locally.
I'm currently running mine thru a 2x12 with Eminence Legend spreakens, and I'm quite happy with my tone. A Dream Setup would be (2) Rivera 4x12's, (1) 2x12, and (1) 15" sub cabinet. Yikes! But tone from here to Kathmandu! :-)
Micro: Here's a link
to the TBR page. If you want some shots of the inside of a TBR, email me ([email protected]
). It's a true beauty of engineering. :-)