Not enough bass being thrown out of my rig.

[kungfusheriff]

I used to use a Mesa 210 as a standalone in similar circumstances and had the exact same problem. My sound improved immensely when I went back to 15 speakers, specifically EVs in Bag End cabinets, which are great speakers in managably-sized boxes. Next gig, try standing the 210 on end -- vertically -- on top of the 15, and if that doesn't give you enough low-end projection borrow an 18 and use that.

[eldiablo]

Jazzy I would definitely follow David's advice on input levels and Flip hit the nail on the head with adding the 15.

[jazzyvee]

ok next gig I will try to get to the venue early and try some of your suggestions.
 
Thanks for the advice.
 
Jazzyve

[jacko]

Jazzy.
A point to consider - there's a clip limiter switch and a Low frequency switch on the back of the QSC for both channels - how do you have yours set?
 
Graeme

[keurosix]

Jazzy,
One point that has been glanced over:
The ultra low bass frequencies below the fundamental of your bass suck up tremendous power, and can cause all manner of gremlins to show their ugly faces. If you are using a 4 string, (low E ~ 40 Hz) or a 5 string (low B ~ 32 Hz) you don't want your system to try to reproduce any frequencies below the lowest fundamental. You can prevent this by applying a high-pass filter at the lowest fundamental with a steep curve so that it rejects lower frequencies. The result will be cleaner sound all around: The amp and the speakers will be happier, and so will your ears. In fact, you should perceive more bass output at the desired frequencies with this approach. Depending on your preamp or crossover or SF-2 you should be able to dial in a low frequency high pass and maximise your low end punch. The SF-2 in a low pass mode at a low frequency center can really generate a huge power hungry monster that will do more harm than good. Try a little experimenting with this.
Kris

[ivartshiva]

Friends, there's a lot of technical stuff in this thread that I know nothing about - however I have a little experience with the 'hillbilly' setup of no sound reinforcement other than a vocal PA - in fact, anything else, for me, is fabulous luxury!  Also I have more experience in this old school style setup as a guitar player, but the same thing seems to be true for bass: as Mr. Fung mentioned above, EQ your stage amp such that it sounds good out in the crowd, even if you're way too loud and bassy on stage.  As far as I know, this is the only way to go in this situation.  I'm playing reggae using a wireless and playing 4-string through an SVT-3PRO (450W) and an Ampeg 4x10 SVT410HLF, made for enhanced low end, and it sounds great in medium-sized room, and even outside within 100 feet, but 1) next to the amp, when the sound is right out front, it sounds like a freakin thunderstorm, way too loud and bassy for a pleasant 'stage mix' experience; and 2) I'm not talking about getting a super-lowend hip-hop modern ultrabassy stomach-flopping ear-assaulting, sickening 21st Century bass sound, but a truly musical, sweet, rich, punchy, full powerful authoritative bass sound.  
 
I heard Toots and the Maytals recently and the soundman had no clue how reggae bass should sound - it was a way-low end washout mud until someone from Toots' crew came and cut out that super low-end shite (can I say shite?) and suddenly it was music instead of sound effects. The sound man changed it back a couple times and the same guy would come back and fix it.  I think the moral is: just because your house sound system can break rocks and melt lead pushing gross low frequencies, only adolescent teenagers in low riders wanting to shake and annoy urban areas really want to hear that.
 
Or maybe I'm an old guy and not with it
 
Michael