For sale in NYC/CT/NJ area only: It's big, heavy, meaty and the most powerful and best sounding bass rig you can get for under $800, no question. Alembic F2-B preamp and a Samson S700 power amp. The Samson is 700 watts bridged or 350 per side. The preamp seems to be a late 70's to early 80's model and has new tubes. The whole system is clean and flawless, and enclosed in an SKB rack case. I'll throw in a pro co direct box as well, since the F2-B has no direct out. $650.