What do I need more?

The obvious answer is another cab, or a different, bigger cab.

 

i dont get it i have 150 watts and never had a problem hearing myself?? or cutting throu?? maybe a hearing aid??

 

Maybe another trick, ask your bandmates to turn their volume down a little...

 

It not a power issue.

750 watts should be plenty.

I run an Aguilar S210 with 500 watts and I get all the rumble I can stand for most venues.

I would get another 210...

 

I voted both. A 210 probably won't get the job done in all situations, and I've always thought that amp's power was way overrated.

 

The real question is, are you loud enough in the overall mix. It's possible that you sound better in front of the stage than you do on the stage. Bass notes travel in waves that are much larger than those produced by a geetar, which will usually make you much louder from 20 feet away than right next to your cab.

In addition, another cab would help. Even at the same wattage/ohm rating, 4 speaker. will usually produce a "bigger", or more pronounced, sounds than 2.

I've played some fairly large venues with 300 watts running through 2 Peavey 1820 cabs, and I've never had to turn up more than 50%. And that was playing in a prog/goth/metal band.

 

I would go for more cabs. You can run the head as low as 2.6Ω so I would get an 8Ω avatar 410 neo and a 212 neo to go along with the 210 (or 2 212's depending on the sound you're going for). For all of the wattage you have you're comparatively not pushing a lot of air. Also would someone double check me that 3 8Ω cabs would = 3Ω's which would be safe for him to run

 

Make sure the "enhance," aka the "suck" knob is at 0. Roll off the bass a hair, roll off the treble a lot, boost the low mids a lot, run the preamp so that the tube clip light is on a lot.

You will be heard.

 

I'd say you either need another 2x10 or a 1x15 if you don't want to have two of the same cab.

I use a pair of 2x10's now that I have a small car and I haven't missed my 4x10 one bit. Plus, my rig runs at 4 ohms where my old 4x10 ran at 8 ohms. I just tweak the mighty volume knob a little bit and the sound just flies out of my rig.

 

Ever notice you DONT see many guys that play comparatively much lower powered (100-300 watt) tube powered amps posting they cant hear themselves on stage? (I do realise many of them use larger cabs but still)

I gigged a SWR bass-350/750 with a pair of Goliath-II 4x10's for well over a decade. I constantly had trouble hearing myself well over distorted guitars while simultaneously being told I was already too loud. (yes I boosted mids/cut lows and didn't over use the Aural enhancer)

My current SVT/NV610 rig is just the opposite, I can always hear myself even on the opposite side of the stage from my amp and if anyone comments about my volume nowadays, its usualy that I need to turn up louder. I'm not kidding or trying to be a tube amp/sealed cab snob here, its just the plain simple truth that I've experienced over and over.

 

I haven't played thru ANY 2-10 cab that could cut it in a live band all by itself, unless you have really good FOH support and are just using the amp as a monitor. Two ten inch speakers is not enough for loud bass by itself.

I play in a loud rock n roll band with a Bass 350 thru two 8ohm Avatar 2-10 neos and I am plenty loud enough. I am not "competing" with a guitar stack or anything though.


That "underpowered" Bass 750 will crumble walls. Get another cab.

 

get an 8x10 and 2 18s to flank it. that might be enough.

EDIT: better make it 2 8x10s to be safe

 

First try setting your speaker cab vertically on a stand to get it to ear level. You'll have your own bass monitor.
You'll be able to hear yourself better on stage.

Also, play with your e.q. a bit (as suggested earlier). Maybe you're tone is being washed over by room/stage acoustics.

Most of all, get a long cord or wireless so you can go FOH and hear how you sit in the mix real-time. It's the only way to really tell what's going on, even if you sound good/ can hear yourself on stage.

If those work for you, you'll save some cash.

If it doesnt' work

According to the 750 manual, the specifications of the amp are:
850 watts @ 2.6 ohms
750 watts @ 4 ohms
450 watts @ 8 ohms
(minimum load = 2.6 ohms)

If you like the tone, maybe adding another 2x10 might do the trick. Just stack them vertically (according to Bill Fitzmaurice, cab guru). You'll move a ton more air and have quite a bit more headroom this way and increase the wattage by 300 watts.

If you add a cab with different speakers/wattage/efficiency, the balance between the 2x10 and other cab may be out of balance.

 

Cab. A 210 is a great way to monitor yourself in a quiet band, or if you have great monitor/FOH support. But you won't be able to hear yourself in an average rock band. Add a 15, or another 210.

 

I vote: Get another 8 ohm cab. It will make the amp bloom and you will cut through better.

I went from a 2x10 Bag End to a 4x10 Bag End - then added Sunn 1x18. Now I'm (finally) happily using an Eden 210 XLT & 210 XST. Less weight + less bulk + great sound = happier bassist.

 

I used a G.K. 800 head (300 watts at 4 ohms) into a 4 ohm Ampeg SVT 810 cab for many years. "NEVER" had a problem being heard or covering the room if need be.
I think you can gig with reasonable power (300 to 500 watts), the secret is to have enough speakers running to move some air with that power.
There's a guy locally that's in a loud blues/jam band, no P.A. support, using a Ampeg V-4B head (100 watts) into a Ampeg SVT 810 cab....NO trouble hearing him out front!

 

Get another cab.

Set the bass control at 12:00 and boost the low mids all the way.

 

Had trouble when using my V4-B with a 215 "at times", only once with my 800rb and 412. The room sucks, low overhang, ceramic tile floor, have to cut the bass and low mids. Sounds killer out front but for me it sounds weak and guitar-like? It keeps people there till closing so I live with it.