BillFitzmaurice.info

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

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...

RogueCow wrote: ↑Sun Feb 05, 2023 11:04 pm want to see if they are a good fit

...Yes, the answer is always yes

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

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

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?

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.

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

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?

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

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

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.

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

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