Let me throw my dos centavos in here.
My setup is a Carvin LB76 6 string bass with dual humbuckers (see avatar) going into a Carvin BX1500 head and BRX 4x10 cab. There is no shortage of low end on this rig and in fact I don't have my bass control all the way up, not because the amp or cab can't handle it, but because my house can't handle it. In the 6+ months I've owned this rig I have had zero problems or issues with it, it's never farted out, and I have never said "I wish it had ..." and yes it has been gigged with.
As a side note, a friend of mine has the Line 6 head with the 12AX7 and you will have no issues keeping up with it. Actually it's the other way around.
Is this rig Gods gift to bassists? No, not if you're looking for a growly SVT sound. If you want a clean, very tight, and articulate setup that has plenty of power and a ton of features you would be hard pressed to find better in my opinion. That is why I bought it after all.
They offer two options that may be of interest here, both have the BX1500 head, but one comes with the BRX4x10 and the other comes with a BR8x10. Both packages are $1100. So whats the difference? The BRX series of cabs are their flagship cabs and are made a little nicer. Don't forget to check the frequency ranges on these cabinets. You will be surprised.
Here are a few links:
BRX4x10 rig -
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BR8x10 rig -
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In other news...
I have to agree with the others that have posted as well. An 810 is an awesome looking cab and most sound decent, however do you really want to be moving a refrigerator around at 3am? I am thinking that a 4x10 with an additional 2x10 will sound a bit tighter and would be less likely to get flubby. The other advantage of a 4x10 + 2x10 rig would be versatility in terms of small, medium, and large gigs. If you really just gotta have an 8x10, even if its just for the visual vibe, get one and rock out man.
I hope this helps and groove on
