I have a GK 400RB I bought second hand about 15 years ago. I have used two different cabs with it in the past. One was a Randall 215 and the other was an Ampeg 410. Unfortunately, I no longer own the ampeg cab(traded for Trace Concert TA100R acoustic amp several years ago ), but for some stupid reason still have the 215. Obviously the Randall cab is fairly low quality and is muddier than heck and maybe even to much for this 200w(4ohm) head to handle. The ampeg cab sounded just ok, not bad mind you. I know this head is capable of more than I got out of it. I am wondering if I should use the Randall enclosure, scrap one of the 15's, partition the cab and add a 10" or two to the box? Or maybe convert the whole thing to a 3 x 10" or 2 x 12" ....all wired 4 ohm? I am really trying to get away with not spending much on amplification since I basically have some(meager as it may be), so I can afford a to get a decent bass. Am I better of just getting a new cab? If so, what is a good match(low cost) enclosure for the 400RB?