Bill made these suggestions, I would seek out cabs with a kappa lite and delta light drivers and make your choice.
From what my ears tell me the eminence 3015 is very hard to beat in practical terms, The JBL Dual-drive neo offering with a similar frequency response and power handling is at least twice the money and I have never heard one used in a bass guitar rig yet.
Never heard one of these either:
http://profesional.beyma.com/pdf/15P80NdE.pdf
but I suspect Bill will agree if its figures are reality its a real contender in this class.
