| | Street Beating a 21" sub |  |
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+4dbdaddy Skip01 poundstone chrisbaldelli 8 posters |
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chrisbaldelli
Above Average Contributor
Number of posts : 559
Age : 39
Location : Houston, TX
Registration date : 2008-11-30
|  Subject: Street Beating a 21" sub  Wed Nov 03, 2010 4:18 am | |
| Currently, the rules define:
1 pt = 8"
2 pts = 10"
4 pts = 12"
8 pts = 15"
16 pts = 18"
What does a 21" woofer qualify as? The obvious trend would say 32 points... but there's no class for that, just SB4 (open).
In terms of usable cone area, a 21" woofer has the equivalent of 5 10" woofers, which is 10 points, and well within SB3's points limitation.
random thought:
While people are considering the rules, I crunched some quick numbers
A 12 has the effective cone area of ~1.5 10's... not 2 10's.
A 15 has the effective cone area of ~2.5 10's... not 4 10's.
An 18 has the effective cone area of ~3.5 10's... not 8 10's.
We see a few high-end 15's, but very few 18's in the SB lanes... hmmm. Alot of daily driver SUVs are 15's and 18's though. | |
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poundstone
Advanced Contributor
Number of posts : 1900
Age : 41
Location : decatur, il
Registration date : 2010-06-05
| | Subject: Re: Street Beating a 21" sub Wed Nov 03, 2010 10:19 am | |
| im pretty sure its not a set cone area it is a range between x and x cone area you are in this class! as for a 21 if the 18 is 16 im sure it would be so high there is no point in putting it there! its sb4 no matter what! | |
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Guest
Guest
| | Subject: Re: Street Beating a 21" sub Wed Nov 03, 2010 1:14 pm | |
| Yep SB4 or SB5 would be the class |
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chrisbaldelli
Above Average Contributor
Number of posts : 559
Age : 39
Location : Houston, TX
Registration date : 2008-11-30
| | Subject: Re: Street Beating a 21" sub Wed Nov 03, 2010 2:06 pm | |
| Thanks for the clarification ShowB! Skillfully striking down any and all who attempt to soil rules. I'm in it for the fun, so open class is perfect. Have fun this weekend! Should be huge, if the snow stays away.  We've had some weird weather this week. | |
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Skip01
Advanced Contributor
Number of posts : 2099
Location : Marrero, LA
Registration date : 2007-07-02
| | Subject: Re: Street Beating a 21" sub Wed Nov 03, 2010 7:29 pm | |
| - chrisbaldelli wrote:
We see a few high-end 15's, but very few 18's in the SB lanes... hmmm. Alot of daily driver SUVs are 15's and 18's though. Theres a reason for that haha | |
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chrisbaldelli
Above Average Contributor
Number of posts : 559
Age : 39
Location : Houston, TX
Registration date : 2008-11-30
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 2:44 am | |
| HA! More than a few reasons. You know, if DD stuffed a 6" coil on $5000 of neodymium. That would be a real SB champ I chuckle, but I'd bet you know a few people who would actually buy one, if it existed. | |
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dbdaddy
Above Average Contributor
Number of posts : 821
Age : 45
Location : katy,texas
Registration date : 2009-01-03
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 7:56 am | |
| just look at it with a mirror and call it a 12. | |
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fstfred
Novice Contributor
Number of posts : 208
Age : 53
Location : Arlington,Texas
Registration date : 2009-07-12
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 8:50 am | |
| i think i would buy 4 of the 6" voice coil DDs, but they would have to be blue.....  | |
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2003f150
Thats a Lot of Posts!
Number of posts : 2610
Age : 41
Location : Biloxi,MS
Registration date : 2007-09-12
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 9:32 am | |
| - fstfred wrote:
- i think i would buy 4 of the 6" voice coil DDs, but they would have to be blue.....
You may get your wish coming soon.... | |
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Alarm God
Advanced Contributor
Number of posts : 1272
Age : 52
Location : Arlington,TX
Registration date : 2007-11-14
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 10:02 am | |
| Can you imagine the weight of that fornicate!ng thing | |
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fstfred
Novice Contributor
Number of posts : 208
Age : 53
Location : Arlington,Texas
Registration date : 2009-07-12
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 10:13 am | |
| please please please, 4 subs 15000 watts each, that would be nice | |
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2003f150
Thats a Lot of Posts!
Number of posts : 2610
Age : 41
Location : Biloxi,MS
Registration date : 2007-09-12
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 3:56 pm | |
| - fstfred wrote:
- please please please, 4 subs 15000 watts each, that would be nice
THATS ALOT OF POWA!!!!!  | |
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fstfred
Novice Contributor
Number of posts : 208
Age : 53
Location : Arlington,Texas
Registration date : 2009-07-12
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 8:06 pm | |
| hell yes, i might have an EXPLODER instead of an EXPLORER..... | |
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Alarm God
Advanced Contributor
Number of posts : 1272
Age : 52
Location : Arlington,TX
Registration date : 2007-11-14
| | Subject: Re: Street Beating a 21" sub Thu Nov 04, 2010 10:12 pm | |
| Dung Pile you are already breaking spot welds everytime you compete. | |
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scionsoloxb
Thats a Lot of Posts!
Number of posts : 4832
Location : missouri
Registration date : 2007-06-22
| | Subject: Re: Street Beating a 21" sub Sat Nov 06, 2010 1:06 am | |
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