[quote name='gypsymoth' post='55636' date='Sep 4 2007, 11:11 PM']let's try this again.
your cab & speakers don't "put out" watts, they put out volume. the more watts that are put into them, the more volume they put out ....until you get up around their maximum rating, when they will cease generatingf additional volume and start generating distortion. as noted previously, too much of this is a bad thing as the speakers can fail, which in turn can cause they amp to fail as well.
adding another cabinet will make you louder, as there are more speakers. a higher rated (max watts) will not make you louder - unless your prior amplifier didn't put out anywhere near the cabinets maximum rating, and the new one does.
solid state/transistor amps put out more power at lower ohms (see the back of the amp for lowest allowable load), while tube amps with impedance selectors put out pretty much the same watts regardless of ohms. (owners of antique fenders need not protest the general concept).
if you want to be louder, add speakers as they are generally cheaper than amps. if your 280 watts is peak, your rms is about half that, typically adequate, but many/most rock bass players prefer amps around 200 rms in tube amps, more for solid state. and, as previously mentioned, a second cab typically halves your impedance, so if you are using solid state, your power doubles when you add the cabinet - which was going to make you louder anyway.
pay attention to all labels/warnings/stickers/etc on your amps & cabs as they supercede any general info given here, especially while you are in the learning stages. it is best not to learn by quickly buying or destroying expensive stuff.[/quote]
[quote name='MoJ' post='55686' date='Sep 5 2007, 02:03 AM']For my two pence worth, I had to use an old Trace head last week - an SMC 7 band (wouldnt know if thats pre-Gibson ie good or not) but I found it lacked in the bottom end quite a bit, especially for a 300 watt head. Not sure what people rave on about, but the AH500-7 (new Peavey owned) was better by ten fold. The SMC didnt cut it for me at all. Horses for coarses. Im sure others really like them...
Try a Peavey Tour 450. I borrowed one from work as a road test on Monday and it rocks! Tons of (mid) bottom with very little EQ and I could get the bite in my sound I like too, and my shop is doing them for £259. Might even be a bit less, I cant quite remember this time of the day (after Jaeger...) Honestly, I defy ANYONE to find an amp as good as this, new, for the same price!
Andy[/quote]
That seems to make sense to me Gypsymoth, so in theory another cab would be just fine?
MoJ, I used to have an old Peavy head the Centurian and that was great, no complaints what so ever. I might just look into the Tour 450.
Cheers guys