[quote name='Musky' post='1066322' date='Dec 22 2010, 12:00 AM']+6dB is a doubling of SPL but that's not double the perceived volume: +10db is a doubling of volume. Likewise, +3dB is not half as loud again, it's about the minimum you would appreciate as being louder in a real world situation.
Adam, the point deepbass5 is making is that your choice of cab is going to make a huge difference to the volume you're going to achieve. If you use a single 8ohm cab you'll be getting 130w out of your amp - whether that will be enough is going to depend on type of place you're going to be playing and how loud the rest of your band is. Using a more efficient cab will make the most of those watts. There are a lot of factors that affect cab efficiency including the number of speakers, hence the suggestion of multi speaker cabs. Using a cab rated at 4 ohms would give you the full 200w from your amp, but that kind of increase in power would scarcely be noticeable. Two 8 ohm cabs (so an overall load of 4 ohms) would also get you 200w plus an extra 3dB from the doubling of drivers. Doesn't really fit the ease of transport criteria though.
FWIW, I used to gig with an amp that knocked out 130w into a 15" speaker and it was fine. That was my band though - yours may be very different.
What kind of budget are we looking at here?[/quote]
Think I would stretch to around £300 if I thought it was going to be worth it, and hopefully retain a bit of resale value in case I need to trade/upgrade at a later date. I'd also consider selling the amp so as to have more money to put towards a combo or a better amp/cab duo.
Have been playing through an Ashdown combo - a 1x15 - for rehearsals recently, and I haven't really loved it. I need to be fairly loud, but nothing ridiculous, and have found that combo to be a bit muddy. I normally like a nice, warm sound, but I guess it needs to cut through just a little more, so I'm thinking a 2x12 might be the right thing for me. Could be totally wrong though, and need to try some stuff out.
Bassmerchant have a TC Electronic RS212 nicely priced, but it's still quite a lot of cash to part with and I'm not sure that a 400w cab is the best thing to match with the Peavey amp.
Thanks for all the advice and explanations...please keep it coming if you're not sick of this subject
Cheers
Adam