Y'know, Marky, the more I see similar, or identical, amps connected; the more it seems to make sense to me. Identicals, run at half-or-less volume each, make very good sense as mutual backups in case one is is ever needed, though hopefully not. And fortunately, non-identical
Rumble combos and cabs are actually designed to play well together! So, that should make your choice somewhat easier.
And the option of slaving by FX Send from one to FX Return of the other makes single EQing for both so simple. But the other option of FX Send from one to the Input of the other, allowing different EQs, is also available. Take your pick!
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Are you not able to do a side-by-side comparison at the music store where you got a good deal on your R200c? You probably could at a GC.
Do you have an extension cab for your R200c? I've read of
acoustic reinforced coupling of identical vertically stacked speakers, though I haven't experienced it myself. I
believe non-identical stacking also gives
some reinforcement, as with my R500c and Bassman 115 cab.
I was always a fan of 15" bass speakers and thought 10"s required at least 4, if not 8, of them to do bass well. Imagine my surprise on hearing a very strong and punchy low B coming from my first Rumble 210! While others say they hear a difference, I'm not sure I do!! YMMV.
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I'll buck your expectation and say, "Get another R200c." It's the tone you already know and love. And the two of them providing up to 280 watts together is quite substantial. The identical speaker reinforcement mentioned may make it seem much more than that. Plus another cab, or two, of whatever configuration, gives you even more power, up to 400 watts, and more SPL. But, of course, I don't think you could go wrong with the R500c, either.
Let's get ready to fire up our Rumbles!
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