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Re: Introducing SPL Chart
Posted: Mon Aug 23, 2010 4:26 pm
by DaveK
sine143 wrote:you guys must have all missed the thread where I was talking about using W10s as dedicated tops....

Saw it. I suspect Harley did, too, and that's what got us thinking about the subject. I can't remember if you included the comparison chart. If you did, I apologize for the duplication.
Re: Introducing SPL Chart
Posted: Mon Aug 23, 2010 5:00 pm
by sine143
I'm fairly sure I did, but I dont remember. I believe the general consensus was that the DR280 > W10 as a top, with similar box size. The w10 takes a lot more eq to act as a top as well.
Re: Introducing SPL Chart
Posted: Mon Aug 23, 2010 5:17 pm
by DaveK
sine143 wrote:I'm fairly sure I did, but I dont remember. I believe the general consensus was that the DR280 > W10 as a top, with similar box size. The w10 takes a lot more eq to act as a top as well.
The DR should be a better box since it has a longer horn. J112 and W10 are a much closer comparison since they have a similar horn length.
Re: Introducing SPL Chart
Posted: Fri Oct 01, 2010 11:08 pm
by subharmonic
Chris
Can you add a THT Lab15 18" vs 24" chart? The Lab 15 is in the plans but no chart.
Thanks
Dan
Re: Introducing SPL Chart
Posted: Sat Oct 02, 2010 4:58 am
by Chris_Allen
subharmonic wrote:Can you add a THT Lab15 18" vs 24" chart? The Lab 15 is in the plans but no chart.
Hi Dan,
I've had a good look round but I can't find a copy of the chart to sample.
Re: Introducing SPL Chart
Posted: Sat Oct 02, 2010 7:29 am
by subharmonic
Okay, thanks for trying.
Re: Introducing SPL Chart
Posted: Sat Oct 02, 2010 8:27 am
by Bill Fitzmaurice
subharmonic wrote:Chris
Can you add a THT Lab15 18" vs 24" chart? The Lab 15 is in the plans but no chart.
Thanks
Dan
There is no chart for a LAB 15 in a 24" THT because it's not a recommended use. LAB 15 is only specified for 18-20" widths.
Re: Introducing SPL Chart
Posted: Sat Oct 02, 2010 1:39 pm
by subharmonic
Bill Fitzmaurice wrote:There is no chart for a LAB 15 in a 24" THT because it's not a recommended use. LAB 15 is only specified for 18-20" widths.
Bill,
Is there a chart for the THT Lab 15 18"? It is not in my plans nor can I find it anywhere. I am not trying to

, Just want to see what I am dealing with since I have a couple Lab 15s on order.
Thanks,
Dan
Re: Introducing SPL Chart
Posted: Sat Oct 02, 2010 4:02 pm
by Bill Fitzmaurice
subharmonic wrote:
Is there a chart for the THT Lab 15 18"?
It's similar to the 24" but with the lower corner frequency at 28Hz instead of 25Hz. In a 30" width the Fc is at 22Hz.
Re: Introducing SPL Chart
Posted: Sun Oct 03, 2010 9:08 am
by subharmonic
Bill Fitzmaurice wrote:It's similar to the 24" but with the lower corner frequency at 28Hz instead of 25Hz.
Thanks for the reply Bill. What driver loaded 24" are you referring to? I found charts on the Lab 12 and Tempest 15, from the charts I am assuming it is the Admire 15
Bill Fitzmaurice wrote:In a 30" width the Fc is at 22Hz.
I am not sure what this means. Can anyone help me understand this? Thanks
Re: Introducing SPL Chart
Posted: Sun Oct 03, 2010 10:27 am
by ewetho
Was lookin at stuff on here and accidentally posted
Re: Introducing SPL Chart
Posted: Mon Oct 11, 2010 6:11 pm
by subharmonic
subharmonic wrote:Bill Fitzmaurice wrote:It's similar to the 24" but with the lower corner frequency at 28Hz instead of 25Hz.
Thanks for the reply Bill. What driver loaded 24" are you referring to? I found charts on the Lab 12 and Tempest 15, from the charts I am assuming it is the Admire 15
Bill Fitzmaurice wrote:In a 30" width the Fc is at 22Hz.
I am not sure what this means. Can anyone help me understand this? Thanks
Anybody?

Re: Introducing SPL Chart
Posted: Mon Oct 11, 2010 7:13 pm
by Bill Fitzmaurice
The corner frequency is just what the term implies, the frequency where response falls off and the chart trace turns a corner.
Re: Introducing SPL Chart
Posted: Fri Nov 05, 2010 9:21 am
by Mikey
Chris, could you please add the 3012LF T30 in 16", 27", and 30" widths? They're all in the SPL Charts section.
Re: Introducing SPL Chart
Posted: Mon Nov 08, 2010 4:57 pm
by Chris_Allen
Mikey wrote:Chris, could you please add the 3012LF T30 in 16", 27", and 30" widths? They're all in the SPL Charts section.
Sure:
Code: Select all
[spl]T30W16D3012LF,T30W27D3012LF,T30W27D3012LFX2,T30W30D3012LF&dbmin=80&dbmax=110&fmax=200[/spl]
Code: Select all
[spl]T30W16D3012LF,T30W16D2010& dbmin=80&dbmax=110&fmax=200&dbmark=89.5,92&fmark=35,50[/spl]
Checked Bill's charts and the 2010 does provide a 2.5dB advantage between 35 and 55 Hz.