So I've been doing a little bit of looking around, trying to lighten my rig without sacrificing too much tone. I currently own an Ampeg rig, B4R head with 410HE and 115EN cabs, and I *LOVE* how it sounds. Unfortunately, I *HATE* the schlep-factor involved. I've got my eye on some o' these dinky (in size, not in sound) solid-state heads with neodymium magneted cabs. I looked into Walter Woods' line of amps, but if I sold every piece of bass amplification I had (the above rig plus a Roland DB-500), I still would BARELY be able to afford the head, much less cabs to go with it. So, it looks like I have to set my sights a little lower. Have any of you ever used the Ampeg Portabass series of amps? Specifically, I'm interested in the PB-800 amp with two PB-212H cabs. I'm positive that the PB-800 with a single 212 would be more than sufficient for my jazz gigs but I also occasionally sub in a rock cover band, which gets pretty loud due to the half-deaf guitarist and his 200W amp and two 4x10 cabs. Also, what kind of tonal differences can I expect going from the B4R to the Portabass? How do they sound with an upright plugged into them? Also, how do they compare with an Eden head like the WT-400?