4 21" for HT ..what u think ?

[JinMTVT]

http://www.tr.ca/2006/english/produc...s/nac-221.htm#

local company ...want to encourage them
planning on my HT system for a completely treated and controlled non rectangular 20' by 25' room ..

would get 2 of those ...i know that Belisle accoustics produces high quality drivers ..wonder if anyone has any experience with their complete sub boxes


would be used for <100hz
probably 70-80hz crossed pretty steep to
some 24 8" mids in stereo line array for front ..

1 box of 2 21" on each side for stereo bass

[JinMTVT]

also,

how would you recommend fixing those monsters to the house ???

my house will be made with ICF ( concrete covered with isolated foam forms )
i dind't plan any finish for the HT room yet,
as it is the least of my concerns
( i usually turn the lights off when i watch a movie neway )

i am not sure how i could fixe those so they don't vibrate on the floor/walls ...

[tomtt]

bolt 'em to the walls of the house,

enclosures outside-


18

[JinMTVT]

enclosures outside ? i hope that you don't mean outside of the house!

the outside of the enclosures to the house walls ok ?
directly on the foam would do or too soft ?
if i know in advance
i'd probable be able to put some anchors directly in the concrete

[Cal Weldon]

Originally posted by JinMTVT
some 24 8" mids in stereo line array for front ..

Hmmm...that's over 16' tall with the enclosure.

[Lindell]

hmm.... an almost 800 liter cabinet playing "only" to 29Hz. I bet they measure -5db or more. Max SPL 146 db!
Why in the hell do you need that level in your living room?

Sure, let them endorse you with a pair.....but make sure to get them for free...

[Lindell]

Looks like they're using these woofers:
http://www.precisiondevices.co.uk/showdetails.asp?id=16

[BHTX]

Yep. Maximum flat response for a vented enclosure is about 2.75 cubic feet @ 47Hz for an F3 at 56.3Hz, LOL.

For that kind of money, there's many more suitable options out there for this application, to say the least..and that's putting it mildly.

[Circlomanen]

Why not a hugh tapped horn with 4 B&C 18TBX100?
You could easely get flat respons down to 18 Hz and a max SPL of 135 dB @20 Hz

[hooha]

Originally posted by Lindell
hmm.... an almost 800 liter cabinet playing "only" to 29Hz. I bet they measure -5db or more. Max SPL 146 db!
Why in the hell do you need that level in your living room?

Sure, let them endorse you with a pair.....but make sure to get them for free...

Indeed. You can do way better with less...