I'd disagree......as long as the chart shows what comes out of the speaker, what does it matter if they've used non-user accessible internal dsp to get it? That shows you what happens when you feed it an un-equalized source.....BrentEvans wrote: and any corrected response chart nearly useless?
Introducing SPL Chart
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Re: Introducing SPL Chart
6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210
"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
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Re: Introducing SPL Chart
If I posted charts of my speakers with DSP correction they'd all be perfectly flat, essentially telling you nothing. That would be true of any speaker that's had correction applied. But the manufacturer can still measure the speaker without correction if they so desire.Bruce Weldy wrote:I'd disagree......as long as the chart shows what comes out of the speaker, what does it matter if they've used non-user accessible internal dsp to get it? That shows you what happens when you feed it an un-equalized source.....BrentEvans wrote: and any corrected response chart nearly useless?
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Re: Introducing SPL Chart
The difference being that you can only obtain that speaker in that configuration with the dsp. So, to tear it apart to measure it would seem kinda' silly. If the dsp can get it flat, that's what's important, right? Whether it can do that, or whether it actually sounds any good is the real question.Bill Fitzmaurice wrote:If I posted charts of my speakers with DSP correction they'd all be perfectly flat, essentially telling you nothing. That would be true of any speaker that's had correction applied. But the manufacturer can still measure the speaker without correction if they so desire.Bruce Weldy wrote:I'd disagree......as long as the chart shows what comes out of the speaker, what does it matter if they've used non-user accessible internal dsp to get it? That shows you what happens when you feed it an un-equalized source.....BrentEvans wrote: and any corrected response chart nearly useless?
It's apples and oranges. To compare a powered speaker to an unpowered speaker is worthless, because of all the components required to run the unpowered can be changed.
Compare powered to powered and unpowered to unpowered when using charts. For the important stuff.....use your ears.
6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210
"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
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Re: Introducing SPL Chart
I just wanted to put together a frequency chart of the best of bfm subs compared to the other manufactured subs. I have a friend who has doubts that wanted to see them compared to jbl and mackie especially. All i have to say is
4 19" wide tuba 60 Lab 12 loaded (for sale)
2 GC25AK's
Built:DR 280's, Tuba 60's, Jack 10, Jack 12 lite
2 GC25AK's
Built:DR 280's, Tuba 60's, Jack 10, Jack 12 lite
Re: Introducing SPL Chart
And I threw in a T39, 18" wide with an S2010. Don't forget, though, that the S2010 is limited to 28v (150w)
GrooveFrequencies wrote:
I just wanted to put together a frequency chart of the best of bfm subs compared to the other manufactured subs. I have a friend who has doubts that wanted to see them compared to jbl and mackie especially. All i have to say is
TomS
- Chris_Allen
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Re: Introducing SPL Chart
....and I wanted to highlight the estimated feature by adding +6 at the end of the T39 cab name
GrooveFrequencies wrote:
I just wanted to put together a frequency chart of the best of bfm subs compared to the other manufactured subs. I have a friend who has doubts that wanted to see them compared to jbl and mackie especially. All i have to say is
Built:
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10
6xDR200, 2xT39, 2xT48, 2xJack110, 1xOmni10.5, 1xAutotuba, 1xT18, 1xSLA Pro, 1xW8, 1xW10
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Re: Introducing SPL Chart
2x15? psh , super expensive name brand line array? psh , even the otop has all that stuff beat! lol and to think, it only gets better when they're stacked!
4 19" wide tuba 60 Lab 12 loaded (for sale)
2 GC25AK's
Built:DR 280's, Tuba 60's, Jack 10, Jack 12 lite
2 GC25AK's
Built:DR 280's, Tuba 60's, Jack 10, Jack 12 lite
- Harley
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Re: Introducing SPL Chart
HT for T.W.O.
- Bill Fitzmaurice
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Re: Introducing SPL Chart
The point of SPL charts isn't to see how flat response is, it's to see the raw output of the speaker so that you can compare it to the raw output of another speaker and in so doing be able to extrapolate their relative potential output capacities. That means having the same voltage swing into both. As soon as you EQ in any way shape or form you don't have the same voltage swing into both, so no conclusions about output capacity may be drawn.Bruce Weldy wrote:
The difference being that you can only obtain that speaker in that configuration with the dsp. So, to tear it apart to measure it would seem kinda' silly.
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Re: Introducing SPL Chart
Can someone please post a chart for the 24" T39 LAB12 loaded cab front loaded version and the new version DR250 Delta Light II 2510 loaded in both melded and straight array?
Built
4-25" Lab12 loaded T39's
2-DR250's Melded array
2-DR250's Flat array
4-25" Lab12 loaded T39's
2-DR250's Melded array
2-DR250's Flat array
- Harley
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Re: Introducing SPL Chart
This has no relation to the above post - I've got a gig tomorrow where bass has to be backline, sold all my J112's and wanted to know of 3 J110s would be better than 1 J115 in case I need to crank it up.
Re: Introducing SPL Chart
You don't have to actually post the chart to see it. Just Preview your post, save the image to disk, then Cancel the post.
Re: Introducing SPL Chart
Harley wrote:
This has no relation to the above post - I've got a gig tomorrow where bass has to be backline, sold all my J112's and wanted to know of 3 J110s would be better than 1 J115 in case I need to crank it up.
Curious as to how you were planning on wiring up 3 cabs. Will your amp handle a 2.5 ohm load?
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Re: Introducing SPL Chart
Close enough.
BAT10, Bad Auto Tuba. Reverse folded TAT to fit JBL 1014D, 350W driver, voltage limit unknown.
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Re: Introducing SPL Chart
Thanks Gregory
Built
4-25" Lab12 loaded T39's
2-DR250's Melded array
2-DR250's Flat array
4-25" Lab12 loaded T39's
2-DR250's Melded array
2-DR250's Flat array