Low notes roaring

[Billnc]

Did a gig yesterday, was not overly pleased with the lows when I saw the opening bands. This was a big PA at a festival gig. Anyway, onstage I could not hear the bass through the mains at all, this is not the issue, yet, The crossover point of the mains must have been around 170 or so, around Bb or A all notes lower just rumbled onstage. Anyway to deal with this if it happens again?

 

[T-Bird]

Hi.

Perhaps it's the language barrier, but I have no idea what You're asking about.

Cross over points usually aren't that high, at least on the systems I know of, but what ever it is, that frequency has very little or no effect on the stage sound (outdoors & pro sound).

Anyway,

Line arrays or "conventional" PA stacks?

If line arrays, were the subs on the arrays too?

Or

Subs/bottoms under the stage?

Regards
Sam

 

[Billnc]

Line arrays, subs stage left and right. Things would be fine then when I'd the low octave from about A down to B it was overwhelming.

 

[GregShadoan]

Did a gig yesterday, was not overly pleased with the lows when I saw the opening bands. This was a big PA at a festival gig. Anyway, onstage I could not hear the bass through the mains at all, this is not the issue, yet, The crossover point of the mains must have been around 170 or so, around Bb or A all notes lower just rumbled onstage. Anyway to deal with this if it happens again?

Line arrays are either 3 or 4 way systems. Subs generally set around 100-90 Hrz.
Using high pass filters on bass is common. Some (festival) engineers are too busy or lazy to mix openers, or even headliners properly. It's always best to have a professional sound engineer who works for the band in these situations.
Someone who knows the music, ques, and what how the band wants to present itself.
That way, it WONT happen again.

 

[MNAirHead]

sounds like an RTA & EQ issue.