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View Full Version : does a 6x9 have about the same surface area of a 10"


eDaudio
05-14-2004, 05:34 AM
or what size.

fuk, i meant a pair of 6x9s.

buzz1973
05-14-2004, 05:38 AM
about half

mike_patton
05-14-2004, 05:53 AM
I think a 6x9 is roughly equivalent to an 8" speaker.

nojur
05-14-2004, 06:07 AM
Did you even think about this question before you posted it?

sr20dem0n
05-14-2004, 06:08 AM
How exactly is an oval that is 6" wide and 9" long going to have the same surface area as a circle that is 10" in diameter? Even if it was 9x9 it still wouldn't have as much surface area as a 10" circle.

WeRd2UrMuDdEr
05-14-2004, 06:11 AM
algebra anyone? :rolleyes:
or even better, how about simple mathematics ?

sr20dem0n
05-14-2004, 06:15 AM
I just checked the TB speakers, and their 6x9 woofer has the EXACT same surface area as their 6.5" woofer.
http://www.nuera-acoustic.ca/products/datasheets/W69-1042.jpg
http://www.nuera-acoustic.ca/products/datasheets/w6-789s.jpg

I think it's a typo though, a 6x9 should be similar to an 8 in cone area.

AbRaReTuRnS
05-14-2004, 06:15 AM
Well this certianly was an intelligent question

#1SomeGuy
05-14-2004, 06:19 AM
is this eDaudio guy assoiciated with ED? He seems utterly stupid

WeRd2UrMuDdEr
05-14-2004, 06:21 AM
an 8" round surface should have approximately 50 square inches of SA
a 6"x9" rectanglular surface would have 54 square inches of SA
a 10" round surface would have approximately 78 square inches of SA

gtfo

mike_patton
05-14-2004, 06:51 AM
is this eDaudio guy assoiciated with ED? He seems utterly stupid

Association by screen name only.

Destiny
05-14-2004, 07:50 AM
kicker had the freeair 6X9s and 8"s... they had the exact same Sd listed.

kaosmoon
05-14-2004, 08:17 AM
is this eDaudio guy assoiciated with ED?

no with caps.

eDaudio
05-14-2004, 08:50 AM
nah fukers, im not THAT dumb, i meant a pair of 6x9s, are they close in size to a 10"

#1SomeGuy
05-14-2004, 08:51 AM
You still are dumb...

eDaudio
05-14-2004, 08:52 AM
dumber than some, smarter than some.

AbRaReTuRnS
05-14-2004, 08:53 AM
lmfao :rolleyes:

sr20dem0n
05-14-2004, 08:55 AM
nah fukers, im not THAT dumb, i meant a pair of 6x9s, are they close in size to a 10"

Right, which is why the title of the thread is "does a 6x9 have about the same surface area of a 10". It's too late to come up with excuses now

eDaudio
05-14-2004, 08:55 AM
damn, i can see this crowd needs their hit right away.

DOCTOR!!!, DOCTOR!!!, where the hell are you?

#1SomeGuy
05-14-2004, 08:57 AM
Shush you
I should dig up all your stupid posts...I say we ban him for befouling the fine name of Element Designs

eDaudio
05-14-2004, 08:57 AM
like i really believe that 6 inches by 9 inches ='s 10 inches by 10 inches.

eDaudio
05-14-2004, 08:58 AM
why, Ben did it himself, hence no more FLAT cones. ;)

nojur
05-14-2004, 09:03 AM
Just because they don't have flat cones anymore doesn't mean anything.

Listen with your ears not your eyes you fool.

eDaudio
05-14-2004, 09:06 AM
yeah, why dont you ask Ben why they dont MAKE flat cones any more

lets see. Rel makes flat cones. o look, look at how many awards theyve won.
just click awards at http://www.rel.net/index2.htm

notice all the best subwoofer awards

nojur
05-14-2004, 09:09 AM
So were you planning on making a point?

eDaudio
05-14-2004, 09:12 AM
yeah, i was impressed how my 6x9s sounded in my car and was just wondering what size sub they could be compared to, i was thinking maybe a 10" ;) hahaha

thumperfbc
05-14-2004, 09:16 AM
no with caps.
Heh...

:)

nojur
05-14-2004, 09:17 AM
...with the post about Rel.

Man, nothing gets by you :rolleyes:.

AbRaReTuRnS
05-14-2004, 09:19 AM
Just because they don't have flat cones anymore doesn't mean anything.

Listen with your ears not your eyes you fool.

I imagine that my ears would be dissapointed when the glue joint failed and the entire cone cracked in half...but hey..maybe not :rolleyes:

digitalchaos
05-14-2004, 09:33 AM
If the area of a 6x9 is something around 54 sq "s and the area of a 10 approx, 78 sq "s then 2 6x9 drivers would have about 30 more sq "s than a single 10.

However, if you are comparing the sound from two 6x9s to 1 10" subwoofer, there are fundamental differences between these drivers which make this difficult.

Mainly, a subwoofer driver is designed to produce only extremely low bass notes (sub bass). A 6x9 driver, especially a coaxial driver (has 1 tweeter in middle which makes 2 actual speakers, cone plus tweeter), is designed to play full range sound. Because of this, a 6x9 is not capable of playing sub bass frequencies as well as the subwoofer, due to the fact that the speaker is designed in such a way as that it compromises some low bass ability for the ability to play other frequencies well. Because the subwoofer speaker has no need to play anything but the bass, its design is optimized for doing so.

This being said, there are many 6x9" drivers, including coaxials, which exist that do play low frequency music very well. I have heard many people mistake the Infiniti Kappa series specifically for a small subwoofer. There are also actually 6x9 inch subwoofer speakers which exist. www.partsexpress.com had these available for a while.

Hope that helps, and enjoy all the relevant information that this website does have to offer!

AbRaReTuRnS
05-14-2004, 09:36 AM
Last time I checked...6x9 speakers are not rectangle in nature :rolleyes:

54sq inches would be for a rectangle that size...the 6x9 is actualy going to be a good bit smaller in cone area

nojur
05-14-2004, 09:37 AM
I think I understand what eDaudio is saying now, the lack of clarity in his posts made me think he meant now that they're not using the flat cones that "befouled the fine name of Elemental Designs".

digitalchaos
05-14-2004, 09:50 AM
Last time I checked...6x9 speakers are not rectangle in nature :rolleyes:

54sq inches would be for a rectangle that size...the 6x9 is actualy going to be a good bit smaller in cone area


So then because AbRaReTuRnS is likely unable to give us the mathematical forumla for calculating the surface area of a 6x9 oval, I recommend locating the Sd variable of the Thiele/Small parameters for the specific 6x9 you have in mind.

eDaudio, what brand 6x9s were you refering to?

AbRaReTuRnS
05-14-2004, 09:55 AM
Finding the area of an eclipse is a real pain in the @ss...similar to finding the area of a circle...but a lot more invovled...I don't remember the forumlas off the top of my head because it's been quite a long time since I've done it...so...do me a favor and blow me :rolleyes:

Also...techincly you'd have to know the exact cone dimensions of the particular speaker...

AbRaReTuRnS
05-14-2004, 09:57 AM
Here kiddies, I was even nice enough to find a link for the formulas...doesn't even require calc

Have at it...because I certianly don't care enough to... :rolleyes:

http://mathforum.org/library/drmath/view/54979.html

Stangme01
05-14-2004, 10:36 AM
I can tell you this, most 6x9's usually have alot more cone area than regular 6.5" speakers. most 6's I've owned probably had less than 5" of actualy cone diameter, and 6x9's i've owned are usually 5x8 cone dimensions. And i've had my front speakers sitting right near my 6x9's before (back in the day when i used rear fill) and it was obvious to look at them that the 6's were MUCh smaller. There is no way they only have a tiny bit more area.

I'm thinking about buying some of those 6x9 subs for my rear deck in my work car. Anyone used those before?

digitalchaos
05-14-2004, 10:57 AM
Ok I couldn't find T/S parameters quickly for any 6x9 anyway so I just solved the formula

Surface area of ellipse = (pi)AB

A = radius of ellipse in the direction perpendicular to the stretch
B = radius of the ellipse in the direction of the stretch
pi = 3.14

A = 3
b = 4.5

hence

(3.14)3x4.5 = 42.39 " sq :D

Of course, in a speaker you have to account for the area of the surround so it will be less. 2 6x9s will probably still be more surface area than a 10", but don't think they will displace more air than the 10.. excursion must be accounted for along with surface area.

texcon
05-14-2004, 11:13 AM
Well, if you had a 6x9 that was like 18" deep, i.e. almost the shape of an ice cream cone, then perhaps it would have more surface area than a typical 10". Or if you are retarded.

WeRd2UrMuDdEr
05-14-2004, 02:54 PM
Well, if you had a 6x9 that was like 18" deep, i.e. almost the shape of an ice cream cone, then perhaps it would have more surface area than a typical 10". Or if you are retarded.
thats a great point
thmbup

Stangme01
05-15-2004, 03:24 AM
you guys are tards :bun:

skeebaaparaap
06-14-2004, 04:35 PM
if you read the thread all the way..he ment will 2 6by9's equal a 10".

skeebaaparaap
06-14-2004, 04:37 PM
oops this is last month not this month...damn i am dumb

amsgwp
06-14-2004, 05:20 PM
i mean wtf

i dont know if tis because im just reading a different forum right now or what

but does this thread seem mean as hell(aka flaming)

or is it just me

WillAshland
06-14-2004, 11:45 PM
or what size.

fuk, i meant a pair of 6x9s.

phew.... good save!