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Driver for SO imperial (Read 7401 times)
asiquis
Senior Member
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Posts: 61
Driver for SO imperial
06/30/07 at 20:23:33
 
I have found this driver would it do the trick for a SO imperial? Thoughts?

Tempest Classic 15"
Overall Dia.: 15-3/16"
Cutout: 13-15/16"
Front Mount Height: 3/4"
Mount Depth: 6-13/16"
Displacement: 5 liters

Specs taken with voice coils in parallel.
Re 3.5 ohms

Le 2.9 mH

Qms 6.7

Mms 195 grams

Qes .40

Cms 0.374 mm/N

Qts .39

Fs 18.8 Hz

Sd 779 cm^2

Vas 317 liters

BL 14.2 N/A

Xmax 16.4 mm one way

EBP 47

SPL 89.1 dB @ 1W/1m

VC Dia. 2-1/2"

Power Rating 750W total
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DaveCan
Ex Member



Re: Driver for SO imperial
Reply #1 - 06/30/07 at 21:00:08
 
Steve say's alternate drivers should be chosen based on how well they perform in a 4cubic foot sealed enclosure.. See the ''alternate drivers from Dayton''  thread below yours.. Dave Smiley
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« Last Edit: 06/30/07 at 21:02:15 by DaveCan »  
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merry
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Posts: 5
Re: Driver for SO imperial
Reply #2 - 07/06/08 at 00:17:17
 
Hi.
I am a brand new owner of the  IMP SO and i would be very happy
if some one could tell me what driver is THE driver for the SO. Smiley
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dank
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pair of dual 18
Imperials

Posts: 275
Re: Driver for SO imperial
Reply #3 - 07/09/08 at 21:57:31
 
As far as I know the one and only "approved" Imperial SO speaker is the Dayton 15" Series II ST385-8 15" available at Parts Express P/N 295-130 for around $100. (Although I don't think Steve has Series II speakers in his Imperial SO's).

Dan
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merry
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Posts: 5
Re: Driver for SO imperial
Reply #4 - 07/11/08 at 18:25:53
 
Ok, but the Vas on the Dayton is : 9.64 cu Ft and Steve was recomending that it would work well in a 4 cubic foot sealed enclosure.
Ain't that a to much of a difference in number's Huh
(rememder i'm a newbie so my questions maybe dumb) Roll Eyes

Thanks for the help.

Merry from Sweden

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ZYGI
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HR-ONE

Posts: 642
Re: Driver for SO imperial
Reply #5 - 07/12/08 at 04:34:26
 
Merry,

 Welcome to the forum!

VAS is the a specific volume of air which has the same compliance as the driver, it does not mean that the driver needs that much air space. With that said, the Dayton driver, which I have put into 4 different IMP SO's  does sound great. In a sealed box, not horn loaded it would need a 2.17 CU FT box for the flattest response.

BobZ
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All Decware amps and sources, Turning Point Audio speakers
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merry
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Posts: 5
Re: Driver for SO imperial
Reply #6 - 07/14/08 at 18:30:03
 
Smiley
Ok thanks for the tip, now i just need to found 2 clones of the Dayton driver in Sweden Sad
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« Last Edit: 07/14/08 at 18:30:56 by merry »  
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Eli Duttman
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Music Loving Geezer

Posts: 364
Re: Driver for SO imperial
Reply #7 - 07/14/08 at 19:20:54
 
Merry,

Perhaps ScanSpeak in Denmark offers a suitable driver.
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Eli D.
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merry
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Posts: 5
Re: Driver for SO imperial
Reply #8 - 07/30/08 at 21:38:47
 
How about this one? www.hifikit.se/index.php?id=1194 Smiley
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« Last Edit: 07/30/08 at 21:39:19 by merry »  
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Valiant
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Posts: 89
Re: Driver for SO imperial
Reply #9 - 08/02/08 at 13:54:53
 
Interesting driver. Just curious, what is the price in
Euros?
Cheers
Gaz
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merry
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Posts: 5
Re: Driver for SO imperial
Reply #10 - 08/02/08 at 16:16:13
 
Smiley Just about 66.04
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