Okay, I have an Ampeg B2RE, SVT-1510, SVT-410HE and a SVT-210HE. I'd like to use all three cabinets but ampeg recommends not connecting more than two 8 ohm cabinets because they don't want you going lower than 4 ohms. What would be the best (2) cab combo...the 1510 with the 410? The 410 with the...