C/E/X PA Flat to 30 (FT30) PA TH Awesomeness

[epa]

does it need to go flat to 30 with 1 speaker ,2 or more per side?
this makes a big difference.
i woulden't be wise to give up spl for something you dont need.
i agree with 30 hz f3(i like the real lows 2) ,when you use 2 or more it wil be flat until 30 .

also would you post a bit of music (low notes).you want 2 reproduce.
i like 2 examen that.
in woody,s topic i posted a sample of a real low c synt. that was 32 hz centre freq.

[epa]

if you take Xoc1.m design 4 per side ,your goal is reeched
@900 watts x-max is 16mm 140 db @30 hz

[CRESCENDO]

Flat to 30 from 2 would be ideal, but realistic?

That looks beautiful but, is that 4 per side or 4 total???

Here's some material to scan: DeepDub.zip
Only 1 file is 192, the rest are 320. Wish I had .wav or flac to send you.


Justin

[Xoc1]

I suppose that the overall limitation would be what size events you are trying to cater for. Four of the large cabinets in a row would be impressive if your prepared to transport that volume of speakers. There might be a problem with bass steeriing if 4 cabs are lined up. J Bell has commented on using delays on the outer speakers with 4 of his big TH cabs to widen the soundfield.
Help needed choosing a design for live sound
Problems arise when the upper freqency wavelengths are smaller than the width of the cabinets. Without processing mid bass beaming is the result!
Are you planning on using a DSP such as a DCX2496 or a Driverack?

[CRESCENDO]

Right now, I feel the only thing limiting me to do larger shows is lack of sound. I currently do shows for a few hundred people and they all want their clothing and nose hairs to vibrate.

SUVs and trucks I have used are typically ~48" wide and fit 2 Titan 48s side by side (24" wide/ea).

Yes, I currently use the DR260

[hellonwheels]

I think you should seriously look into 40 to 120... you give up both SPL and space fast after that.

[CRESCENDO]

I'll wait til epa scans the tracks I sent him before I change my entire plan of action

[epa]

Originally Posted by CRESCENDO

I'll wait til epa scans the tracks I sent him before I change my entire plan of action

here you go
couldnt scan one track,il try that later.
imo go with 30 hz since 32 hz is the lowest (repeaded) sound u want to reproduce.
you can get that with 2 per side at the cost of some spl

[epa]

Originally Posted by Xoc1

I suppose that the overall limitation would be what size events you are trying to cater for. Four of the large cabinets in a row would be impressive if your prepared to transport that volume of speakers. There might be a problem with bass steeriing if 4 cabs are lined up. J Bell has commented on using delays on the outer speakers with 4 of his big TH cabs to widen the soundfield.
Help needed choosing a design for live sound
Problems arise when the upper freqency wavelengths are smaller than the width of the cabinets. Without processing mid bass beaming is the result!
Are you planning on using a DSP such as a DCX2496 or a Driverack?

this can be dealth with by using an inverted arc.
justin is going to cross @ 100 hz max(3.4mtr wave length) therefore ,4 or less shouldn't be a problem imo.

[CRESCENDO]

Thanks for running those scans. As we can see, 30Hz reproduction would be valuable in my case.

Also, I further see the value in high efficiency designs, even if a single cab doesn't grab the low end - your Xoc1.m sample above proves it's flat to 30Hz w/4 cabs

What program are you using to scan the files?