I've been using an SWR SM-400 for about 20 years; it finally needs replacing. For cabs I use 2 Bag Ends; a 1x15 and a 1x15 coaxial. 8 ohms for both. The search for a new head can be overwhelming. 2 amps I've been looking at within my price range are the SVT 3Pro and the Orange Terror Bass 1000. There are also a few more that I will be looking into that I don't yet know much about. Its been a long time since I've shopped for a new bass head.