SLA SPL and Dispersion info?

For livingroom sound better than in a theatre.
Post Reply
Message
Author
RogueCow
Posts: 36
Joined: Mon Jul 16, 2012 10:53 pm

SLA SPL and Dispersion info?

#1 Post by RogueCow »

Howdy everyone,

Are SPL and Dispersion charts for the SLA speakers posted anywhere?
Designing my home theater and want to see if they are a good fit
for LCR and surrounds

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: SLA SPL and Dispersion info?

#2 Post by Grant Bunter »

There aren't SPL charts for the SLA AFAIK.
While generally I would say the design dictates response more than drivers in Bill's designs, Flush mount, Rear mount, roundover of mounts or no and a number of other variables mean it's not reasonably possible to produce charts with any accuracy.
There is however an SLA Pro chart, and, if 100Hz to 6K pretty much flat before the first major bump is enough of an indicator, then hopefully you have the info you require...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

Keryn O'Shea
Posts: 444
Joined: Sat Jan 26, 2013 5:50 pm
Location: Brisbane, Australia

Re: SLA SPL and Dispersion info?

#3 Post by Keryn O'Shea »

RogueCow wrote: Sun Feb 05, 2023 11:04 pm want to see if they are a good fit
...Yes, the answer is always yes :)
AT8 14", AT10 19", T30 28" LAB12, T48 36" 3015LF, THT 20" LAB15, SLA 4x3"/4x4", CArray 6x4", TLAH, TLAP, J10 FLat, J12 Flat, OT12 Flat, OT15 CD, SLAP 2x6"/4x6", WH8, DR280 Mld'd, XF210. Next J10L

RogueCow
Posts: 36
Joined: Mon Jul 16, 2012 10:53 pm

Re: SLA SPL and Dispersion info?

#4 Post by RogueCow »

Also, what kind of sensitivity would you get out of an SLA?

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28619
Joined: Tue May 02, 2006 5:59 pm

Re: SLA SPL and Dispersion info?

#5 Post by Bill Fitzmaurice »

Image

Half-space anechoic, measured outdoors. Indoors wall mounted the low end will be good to at least 100Hz.

RogueCow
Posts: 36
Joined: Mon Jul 16, 2012 10:53 pm

Re: SLA SPL and Dispersion info?

#6 Post by RogueCow »

Thanks Bill!

Are there center SLA plans due to lack of horizontal dispersion on the vertical version,
or is that just for people needing to mount a center below their TV?

If i have LCR behind an AT screen, can/should I go 3 vertical?

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28619
Joined: Tue May 02, 2006 5:59 pm

Re: SLA SPL and Dispersion info?

#7 Post by Bill Fitzmaurice »

The CurveArray is for placement below a TV where there's no room for a vertical line array. Behind a screen go vertical. Chances are if you have an AT screen your room is large enough for TLAH.

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: SLA SPL and Dispersion info?

#8 Post by Grant Bunter »

Bill Fitzmaurice wrote: Mon Feb 06, 2023 10:04 pm Image

Half-space anechoic, measured outdoors. Indoors wall mounted the low end will be good to at least 100Hz.
Is this in the SPL charts section Bill?
Or only in the plans?
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28619
Joined: Tue May 02, 2006 5:59 pm

Re: SLA SPL and Dispersion info?

#9 Post by Bill Fitzmaurice »

It's in my files. I never got around to posting it for some reason, I will now.

RogueCow
Posts: 36
Joined: Mon Jul 16, 2012 10:53 pm

Re: SLA SPL and Dispersion info?

#10 Post by RogueCow »

SLA plans i have are old, 2016 i think, dont think i saw any charts in there.

Truth be told, dont really know what the difference is between the SLA and TLAH except for the added horn.

Theater is going to be 13'x20' with the LCR and front subs in a baffle wall. Gunning for 9.2.4

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28619
Joined: Tue May 02, 2006 5:59 pm

Re: SLA SPL and Dispersion info?

#11 Post by Bill Fitzmaurice »

TLAH goes louder and lower. Not by a lot, but if you've got the room for the TLAH you'd like it better. You shouldn't decide on sub placement without testing it.

RogueCow
Posts: 36
Joined: Mon Jul 16, 2012 10:53 pm

Re: SLA SPL and Dispersion info?

#12 Post by RogueCow »

Would you go TLAH on the entire bed layer, or TLAH LCR and SLA for surrounds and atmos?

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28619
Joined: Tue May 02, 2006 5:59 pm

Re: SLA SPL and Dispersion info?

#13 Post by Bill Fitzmaurice »

Surrounds don't go low enough or loud enough content to need TLAH. IMO Atmos is Dolby jumping the shark.

Post Reply