You should just get a 1001RB. Or 700RB if you want more grind. Both will get plenty loud! I've been using a 700RB II since 2005 without a single issue and extensive use.
That's a good point.
OP, how many Ohms are your cabs? If we look at the GK specs (the manuals, particularly for the 2001 and how it's wired for bridging, are worth reading, btw), there is some flexibility but also some limitations for a two cab setup like yours (on the other hand, if you want to run eight, 8 Ohm cabs, you can do that). If they're 8 Ohm cabs, you can bridge for 1000+ Watts or run each at 240 Watts if you want to push the power amp more and get it to growl that way (which GK amps are known for). That could be cool. If they're 4 Ohm cabs, you're stuck running one per side for about 700 Watts total.
2001 RB Output Power Woofer Amplifier (There's also a separate tweeter amp for use with GK or other appropriately wired cabs, but that won't be relevant to you -- just run the amp in full-range mode)
:
- 2 x 540W @ 2 Ohms
- 2 x 360W @ 4 Ohms
- 2 x 240W@ 8 Ohms
- 1080W bridged @4 Ohms
- 650W bridged @8 Ohms
If your cabs are 4 Ohms, the 700 RB and the 1001 RB won't be options, as they're 4 Ohms minimum
. If, as I suspect, they're 8 Ohms, you're looking at ~700 Watts @ 4 Ohms for the 1001 RBII, ~500 Watts for the 700RBII.
For two 4 Ohm cabs, the 2001 is the only GK RB series option. For two 8 Ohm cabs:
- 2001 RB lets you choose between ~1000 and ~500 Watts
- 1001 RB gets you 700 Watts
- 700 RB gets you ~500 Watts
Depends on whether you want to push the power amp, split the middle, or have gobs of headroom (and the ability to push the amp if you want). For reference, the
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The 1001 and 700 are about 20 pounds lighter than the 2001 and can be had cheaper.
When I played the 2000 RB it was through a sealed Ampeg 410. Even though I was nowhere near taking advantage of its potential power with that setup, it was mean, snarling, and dynamic as hell. In that moment, I channeled Flea as successfully as I ever have. That's not what you're going for, though (unless maybe some Mars Volta?), and I can't speak to the RB distortion. As a platform for something else (pedal, etc.) you might really dig it, but I don't know.
After all that, here's a suggestion: Add the phrase "Metal Content!" to the title of your post, indicate how many Ohms your cabs are in the OP, and post some clips of tones you like. That should get you help from people who'll have a better clue than I do!
You should also check out Juan Alderete's Youtube channel where he plays and reviews a zillion different pedals. I'm curious how you might like one of the Amptweaker pedals in front of your Fafner -- I have a Bass Tight Fuzz and it's pretty cool, but the Tight Drive looks like it might be more metal, maybe...
@tombowlus has played some of them, I think, but pedals are a deep rabbit hole and that's as far as I'll go.
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