There's a lot of guys on Talkbass who are into REALLY BIG amps. In some circumstances you need this but in others no, unless you like to be pasted against the wall by volume.
For a band such as you describe, I tend to use a Roland CB100 cube which is 100W RMS with a single 12 and it barely breaks a sweat. I've done some reasonable size gigs using PA support and the Cube as a monitor. I find using a large amp on a stage where everything else is acoustic tends to make me unpopular. Admittedly, those are jazz gigs where the drummers tend to be tasteful about volume, but I find the amp also keeps up as a rehearsal amp with rock bands.
Your profile says you have a Peavey TKO, which I would expect to be louder than the Cube. Try your TKO, and if it runs out of headroom maybe you need something more.
Edit:
Important trick. Lots of guys put their amp on the floor so the sound shoots out past their knees. Too loud in the room but they struggle to hear it. Get an amp stand that will lift the amp nearer your ear and angled up at you and it makes a big difference.
The other comment is that I use a fairly old school tone which focusses on low mids rather than deep lows. If you want to spit out a lot of 30Hz you may need more headroom therefore more power.
For a band such as you describe, I tend to use a Roland CB100 cube which is 100W RMS with a single 12 and it barely breaks a sweat. I've done some reasonable size gigs using PA support and the Cube as a monitor. I find using a large amp on a stage where everything else is acoustic tends to make me unpopular. Admittedly, those are jazz gigs where the drummers tend to be tasteful about volume, but I find the amp also keeps up as a rehearsal amp with rock bands.
Your profile says you have a Peavey TKO, which I would expect to be louder than the Cube. Try your TKO, and if it runs out of headroom maybe you need something more.
Edit:
Important trick. Lots of guys put their amp on the floor so the sound shoots out past their knees. Too loud in the room but they struggle to hear it. Get an amp stand that will lift the amp nearer your ear and angled up at you and it makes a big difference.
The other comment is that I use a fairly old school tone which focusses on low mids rather than deep lows. If you want to spit out a lot of 30Hz you may need more headroom therefore more power.

