Picked up a working 1973-ish Ampeg VT-22 that had been taken out of the combo cabinet for $200. Whoever did the surgery was not precise. Gigged with it a few times then decided to make it proper. At the same time I am prototyping a 2x15 cab with budget speakers from MCM Electronics: http://www.mcmelectronics.com/product/MCM-AUDIO-SELECT-55-2983-/55-2983 Got some help with the cab modeling in this thread: http://www.talkbass.com/forum/f15/winisd-plot-bass-cab-exp-speaker-builders-please-review-988687/ My goal is to end up with a nice looking head and cab that will be alternates to my SVT-CL and SVT-410HLF. So far I have gotten my tech to refurb the amp. I will attach an invoice for the work he did. The neatest thing is we converted channel one to V4B specs and left channel two for guitar. Reverb stayed too so it's a V4B AND a V4. I am restoring the headbox to damned-near factory including a new faceplate from Fliptops.net. As far as the speaker cabinet goes, I wanted plenty of fundamental through the 5-string range. I am not real concerned about weight or size. Nor efficiency so much. I am mainly building this rig so I can get some tube tone going at smaller/quieter shows. So I bought the aforementioned driver and put it in a thrown-together, appx 5.5 cu ft box tuned to 35 Hz. This gives me roll-off starting at 70 Hz, F3 @ 37Hz and F6 @ 31Hz. It sounds good. Don't need a horn or mid and my open B is holding up. I was able to make it fart just a tad at almost full volume and that's prolly around 250 watts. Vents are a bit noisy, but I new that....just used some 3" ports I already had (the piece of 2x4 is covering a port/horn hole). I am going to A/B it with my 410 soon. I am encouraged enough to proceed with a proper box for two 15's. Think I will change the Fb to 43 Hz and make sure my ports won't bark. This will give me F10 at 31 Hz, a louder cab, more room to work around Xmax, more overall power handling, and a little more clean headroom for the country gigs. See attached images for what was done to the amp. More pics to come as progress is made.