OK - finally made my decision and ordered a Carvin BX1500 head with (2) BR410 cabinets - 8ohm. So my plan will be to run the cabs bridged to run the full 1500 watts. I need some ideas for how to set everything to start out of the box. I play in a progressive metal band with 2 guitarists that play Mesa rack systems through 412 cabs. They are pretty loud. I would like to find a nice setup that has some grit, but not overly distorted. I play an Ibanez 4 string tuned down a whole step, with low string tuned down 2 steps to C. Standard passive Ibanez pickups with precision and jazz configuration. I like to play with my tone low or off on my bass as my personal preference. I like the warm Geezer Butler type tone, not the more modern treble type tone lots of young guys like.....I'm old school. ideas on where I should start would be great with this amp. Thanks for the help! Also - I wanna make sure I have the bridging set up right, so how do I set that up as well just so I don't fry anything.