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Old 23rd November 2001, 05:37 AM   #1
pkgum is offline pkgum  Australia
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just wondering if anyone can tell me if there is any ultra excursion driver (with MORE than 1.5 inches of peak to peak excursion) designed for SEALED boxes and is available for consumer purchase internationally (dont mention any driver for ported boxes). (The NHT/Shiva/titanic,etc does not qualify)


[Edited by pkgum on 11-23-2001 at 12:41 AM]
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Old 23rd November 2001, 05:50 AM   #2
walker is offline walker  Australia
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Pkgum, this probably isn't what you want to hear but I prefer to use multiple drivers, (12") rarther than expect linear action from one driver. Oh and yeah, big boxes. It's an option, but as I said probably not the one your after.

Regards WALKER
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Old 23rd November 2001, 10:44 AM   #3
PJ is offline PJ
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Look at the ACI SV-10

Its as inefficent as hell though...
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Old 23rd November 2001, 11:25 AM   #4
pkgum is offline pkgum  Australia
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walker....one high excursion driver in a smaller box is much more cost effective than multiple drivers in a larger box(s). mulitple drivers do sound better though.
besides, the sub looks cool with that cone moving backwards and forwards at amazing distances...group delay? theres not much group delay in a quality driver in a proper box..especially in a sealed box.

PJ
the ACI 10 only has around 25-30mm peak xmax. Im looking at the 40mm+range. The SHIVA,ACI,TITANIC,NHT1259 might be popular...but lm looking at drivers at a much larger scale.

note...im building a ported sub using the BP1503 driver. If anyone knows the BP1503, im interested if a sealed design of that scale is possible or not.
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Old 23rd November 2001, 01:57 PM   #5
Eric is offline Eric  United States
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check out http://www.audiomobileinc.com for the Mass line of drivers. Very high excursion, designed for small sealed boxes. They are actually car audio, but work very well for home theater also!
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Old 23rd November 2001, 05:19 PM   #6
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gum

You can put any of the BluePrint 03 series drivers in sealed boxes. You could put the Stryke HE-15 in a sealed box too
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Old 23rd November 2001, 07:19 PM   #7
pkgum is offline pkgum  Australia
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it is possible...but they dont go very low...just look at one example..the paradigm servo 15...it manages to go down to 17Hz!!! in a sealed box...how did they manage to achieve that?
http://www.paradigm.ca/Website/SiteR...ervoSpecs.html

the BP?
at 50Hz it is 117Db
at 30Hz it drops to 110Db
at 20Hz it drops to 106Db
at 18Hz it is at 104Db....a ported design using this driver can put out 30Hz at 112Hz and 18Hz at 112Db!!
Thats why it is really only suited to ported designs

by the way..how do manufacturers measure freq response?
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Old 23rd November 2001, 08:58 PM   #8
Nisbeth is offline Nisbeth  Denmark
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You might want to take a look at the Peerless XLS-series of drivers. 10 and 12-inch active and passive drivers. I know the XLS-10 can achieve really impressive results in a cabinet just 1 cu.ft. in size. Check http://www.peerless.dk or do a google-search for "xls-10" or "xls-12".

Good luck.
/Uffe
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Old 24th November 2001, 02:33 AM   #9
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gum

Quote:
the BP?
at 50Hz it is 117Db
at 30Hz it drops to 110Db
at 20Hz it drops to 106Db
at 18Hz it is at 104Db....a ported design using this driver can put out 30Hz at 112Hz and 18Hz at 112Db!!
Thats why it is really only suited to ported designs
WRONG.......

You said you were going to buy Vance Dickason's "Loudspeaker Design Cookbook". Did you?
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Old 24th November 2001, 02:56 AM   #10
walker is offline walker  Australia
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Nisbeth, PKgum wants more than 1.5" excursion, the peerless drivers won't go that far unfortuneately. I am about to use a XLS10 4ohm soon for a freind and wouldn't mind the benefiet some others experience with it, but this is't my thread.

Regards WALKER
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