Eminence LAB15 Subwoofer, 4ohm, Special Run for CHEAP on ebay

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#5
This is from Notnyt on AVS:
attachment.php
 
#8
I am trying to decide what type of enclosure to build. Eminence offers several suggested sealed and ported options, and Bill Fitzmaurice's THT would be nice as well.

Anyone have any suggested designs based on the Lab 15?
 
#14
Brian Steele said:
Never mind - got them:

Re = 3.75 Ohms
Le = 1.60 mH
Fs = 34.4 Hz
Vas = 93.3 l
Qms = 3.76
Qes = 0.59
Qts = 0.51
Xmax = 13.02 mm
Pmax = 600 W

Qe seems a bit high for my liking...
Click to expand...

For a front loaded horn, these would just be beyond overkill; they'd have more output than any sane person would need, and an F3 that's too high for home theater

But for a tapped horn, these would be epic. That FS is good for an F3 of around 20-25hz, perfect for home theater.

I wonder if it would be a 'drop-in' for some of the 15" tapped horns floating around on this board? I published a design for the 15" MTX and the 15" Alpine Type R, and I'll bet this woofer would work well in there.

I have some TC Sounds fifteens here, but they don't like tapped horns; the FS on the TCs is too low, and the QTS is too high. The Lab15 doesn't have that issue.
 
#15
Patrick Bateman said:
For a front loaded horn, these would just be beyond overkill; they'd have more output than any sane person would need, and an F3 that's too high for home theater

But for a tapped horn, these would be epic. That FS is good for an F3 of around 20-25hz, perfect for home theater.

I wonder if it would be a 'drop-in' for some of the 15" tapped horns floating around on this board? I published a design for the 15" MTX and the 15" Alpine Type R, and I'll bet this woofer would work well in there.

I have some TC Sounds fifteens here, but they don't like tapped horns; the FS on the TCs is too low, and the QTS is too high. The Lab15 doesn't have that issue.
Click to expand...

Patrick,

I will look for your 15" MTX and 15" Alpine designs (unless you happen to have links).

Regards,

Beau
 
#16
BeauB said:
Patrick,

I will look for your 15" MTX and 15" Alpine designs (unless you happen to have links).

Regards,

Beau
Click to expand...

Unfortunately many of my designs suck!
But this is a 'guess' at the Danley TH-50, and it works nicely with the Alpine Type R 15s, might work with the Lab15 too:

http://www.diyaudio.com/forums/subwoofers/230405-300-th-50-knockoff-4.html#post3387023

An externally hosted image should be here but it was not working when we last tested it.

th-50-01.jpg

th-50-04.jpg

Response of the "real" TH50
th-50-10.jpg

Predicted response of the box with MTX woofers (like the real thing) and with Alpine


Some reasons to consider it:

1) Danley has mentioned that it's the sub he uses at home, along with SH50s
2) It's a fairly simple box to build

I'm only guessing here, but they probably discontinued the box because the MTX woofer isn't readily available; seems to pop up occasionally on the MTX site, but often it's unobtanium
 
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#17
Patrick Bateman said:
Unfortunately many of my designs suck!
But this is a 'guess' at the Danley TH-50, and it works nicely with the Alpine Type R 15s, might work with the Lab15 too:

http://www.diyaudio.com/forums/subwoofers/230405-300-th-50-knockoff-4.html#post3387023

th-50-01.jpg

th-50-04.jpg

Response of the "real" TH50
th-50-10.jpg

Predicted response of the box with MTX woofers (like the real thing) and with Alpine


Some reasons to consider it:

1) Danley has mentioned that it's the sub he uses at home, along with SH50s
2) It's a fairly simple box to build

I'm only guessing here, but they probably discontinued the box because the MTX woofer isn't readily available; seems to pop up occasionally on the MTX site, but often it's unobtanium
Click to expand...

Thank you!
 
#19
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