new lab15

[chris661]

I'd agree - there's no mention of horns in the recommended cabinets PDF.

It seems to be designed for high output from a pretty small box, ie, portable discos.

[soundhead]

check again

[chris661]

A few sealed designs, 3 vented designs. I counted the horn designs twice. There's still 0.

http://www.eminence.com/pdf/cab-lab-15.pdf

[MaVo]

“The Lab 15 is suitable for small sealed cabinets for automotive use.” said Jerry McNutt, Design Engineer at Eminence. “Go with a medium to large sized vented cabinet or a horn loaded design for PA, sound reinforcement, or dance club applications.”

from: Eminence - The Art and Science of Sound

getting this information wasnt so incredibly difficult

[chris661]

It's a curiosity, then, that they haven't put any horns into the recommended enclosure PDF.

Looks like we're waiting for Eminence to sort themselves out, then we can see what they recommend.

Anyone had any luck modelling it yet?

[iand]

Originally Posted by chris661

I'll admit that I've found this driver a little confusing. It has a higher fs than the original lab 12, but a similar sensitivity, and it's a bigger driver.

For PA applications (including tapped horn) the parameters are a bit strange -- Mmd is very high for a 15" driver, even one with relatively large Xmax, so efficiency is low.

It looks more like a car/home sub type driver in some ways, but its Xmax and Pe are lower than many other drivers for these uses.

Difficult to see what it's good for, there a better drivers for nearly any application I can think of...

[chris661]

I suppose if they dropped the resonance to 18Hz, and made it take a bigger box, we'd all be happy.

I get the impression it's one of those that you can use with a small ish box, and it will go quite low, pretty loud, and it won't be huge (think portable disco).
Otherwise, it's too high a resonance for true HT.
I suppose, moving that much air, it would stand some serious eq... Even so, there's probably drivers out there more suited to such applications.

[littlemike]

Originally Posted by iand

For PA applications (including tapped horn) the parameters are a bit strange -- Mmd is very high for a 15" driver, even one with relatively large Xmax, so efficiency is low.

It looks more like a car/home sub type driver in some ways, but its Xmax and Pe are lower than many other drivers for these uses.

Difficult to see what it's good for, there a better drivers for nearly any application I can think of...

I agree, so I am sitting on the sidelines watching, I am sure that someone has an appropriate cabinet in mind. Maybe I can learn something.

[bjorno]

Originally Posted by iand

...Difficult to see what it's good for, there a better drivers for nearly any application I can think of...

Hi iand,All..

I think of a T-TQWT use, for both Music and HT.

Thoughts in pictures..:

b

[bjorno]

Hi,

FYI, A dual Lab15 driver T-TQWT: See the picture.

PS: The first picture in my posting #29 here above were simulated from the submitted TH text file in Post# 10 ( lab15_tp.txt ) and not my recommendation ( ) for a Sub to be used in any home environment due to the obviously need for FR equalization and the need for signal delaying the main speakers.

b