[quote name='SteveO' post='253543' date='Aug 2 2008, 10:50 PM']I read that post as "what head should I use for my old cab that I built with my dad" rather than a general what head should I get question.
so, if the drivers are 8ohm each and they're wired in parallel then the cab will be 4ohm, with a rating of somewhere between 200 and 300 W
It's safest to buy a head rated at max 200W @ 4ohms, but the problem with this is that there just might not be enough grunt and then you'll be looking at buying a new cab AND a new head.
As you can see from the other posts, 200W would be the absolute bare minimum that pretty much anyone on here would use. you could risk pushing as much as 300W through the cab, how hard you push it depends on how much heartache it'll cause if you blow a speaker.
My suggestion - and I admit that it's a little risky - is that you get whatever head you like (forget about matching the power to the cab, check out the other threads here, there's loads of good advice which I won't attempt to replicate) When you next look at buying a cab then match the cab to the head, in the meantime just don't run the head at full whack so as not to blow your cab. A simple rule of thumb is that if your head's rated at 400 W then half way on the master vol will be about 200W. NOTE - THIS IS NOT ACCURATE, so care is needed. My head is rated at 450W, I have 2 cabs (300W each) sometimes i'll only gig with the 2x10 if it's a small venue, keeping the dial under halfway, and i've never had a problem.[/quote]
sounds quite bad if your overdriving the speaker
you should go for a old tube head like a sound city 120 or a ampeg v-4 or something around 100watts! will be plenty loud and be a perfect match for your cab