Something for the Rules Committee or anyone

Here in the Northeast, a popular trend among car audio enthusiast is the use of traditional "studio or pa speaker" for midrange in the doors. 8s, 10s and 12s are not uncommon in door builds.
The SB rules state that any "WOOFER" larger then 8' shall not be infront of the B pillar (or something to that effect).
As stated above, these speakers are being used for midrange. They cannot handle the low frequencies of a woofer even if one wanted to.
My question is, should a Street Beat competitor be "bounced" from his class even if he or she can prove that the speakers are not being used as "woofers"?
Here is mine, not pretty lol:

Again, the rules use the word, WOOFER not Speaker.

Regaurdless of frequency . From what i know of being a certified Judge you would have to prove they are not playing PERIOD.... Then you would be fine sir......

Just be sure and get with the director and show him they are disconceted...

LOL damn.... That's a good idea and goofy at the same time

Thank you Jimbo will do.

Upzaw2000 wrote:

LOL damn.... That's a good idea and goofy at the same time

There are some very loud cars in our area. Mids, highs and bass.

I believe it

Good luck with it ... Let us know what it does... You streetbeat guys come up with some crazzzzzzy shizzzzznit... But i bet it is loud fo sho. with them doors on. Hopefully Jaffe will answer as well but im sure what i said is sufficiant enough to run in the lane.

Waiting for Kumar to chime in. He can provide alot more photos to show how common this is in our area.

ttt

Modifications:
No modifications will be allowed to the interior of the passenger compartment forward of the “B”
pillars. The floor, ceiling and dashboard must be OEM.


The head judge has the option of using the 30% rule, anything in front of the B pillars may not be modified more then 30% as far as door panels.


9. No woofers larger than 8” inches may be forward of the “B” pillars. any thing above and 8" is considered a sub woofer.

Where is this 30% rule? Never saw that in the USACi rules. Also, street beat rules are pretty clear that no woofers larger than 8'' may be forward of the b-pillar. Midranges are still woofers just not subwoofers. I think that if they are disconnected it should be ok, but the competitor must prove they are disconnected and not complain when I, or whomever does verification wants to open up all parts of the car and look underneath things for wires going to hidden amps so that a switch can't turn on those doors speakers during a run. If your street beat vehicle has this type of installation expect to be judged meticulously in verification. In the past for street beat we checked battery type and number of subs and that was it but we never had cars with these types of installations in the doors either. So come expecting to be checked and don't complain about it.

Matt_Sibley wrote:

Where is this 30% rule? Never saw that in the USACi rules. Also, street beat rules are pretty clear that no woofers larger than 8'' may be forward of the b-pillar. Midranges are still woofers just not subwoofers. I think that if they are disconnected it should be ok, but the competitor must prove they are disconnected and not complain when I, or whomever does verification wants to open up all parts of the car and look underneath things for wires going to hidden amps so that a switch can't turn on those doors speakers during a run. If your street beat vehicle has this type of installation expect to be judged meticulously in verification. In the past for street beat we checked battery type and number of subs and that was it but we never had cars with these types of installations in the doors either. So come expecting to be checked and don't complain about it.

You hit on somthing right there with that 30% thing, a huge grey area!!! saw it at heatwave, 30% of what?????

RXZILLA wrote:

Modifications:
No modifications will be allowed to the interior of the passenger compartment forward of the “B”
pillars. The floor, ceiling and dashboard must be OEM.


The head judge has the option of using the 30% rule, anything in front of the B pillars may not be modified more then 30% as far as door panels.


9. No woofers larger than 8” inches may be forward of the “B” pillars. any thing above and 8" is considered a sub woofer.

This is from the SPL rules, not the SB rules.

Matt_Sibley wrote:

Where is this 30% rule? Never saw that in the USACi rules. Also, street beat rules are pretty clear that no woofers larger than 8'' may be forward of the b-pillar. Midranges are still woofers just not subwoofers. I think that if they are disconnected it should be ok, but the competitor must prove they are disconnected and not complain when I, or whomever does verification wants to open up all parts of the car and look underneath things for wires going to hidden amps so that a switch can't turn on those doors speakers during a run. If your street beat vehicle has this type of installation expect to be judged meticulously in verification. In the past for street beat we checked battery type and number of subs and that was it but we never had cars with these types of installations in the doors either. So come expecting to be checked and don't complain about it.

Matt, I have no problem what so ever getting judged meticulously, heck I wish there was more meticulous judging.
I just have one question pertaining to part of your statement.
Since when is a midrange considered a woofer?

His was more detailed for ya nice .... But pretty much what i said or meant.... Damn your mean matt...LOL jk i know ya just telling like it is.... As far as the midrange question thats a loaded question i bet... huh nice.


I can only see it now if someone rolls into finals with that matt is gonna shoot me.....

Those type set ups are getting pretty big in the Northeast, and I'm told they are getting big in Florida too. You don't see a lot of them at SPL competitions yet, but they are starting to make more appearances. The rules need to be better defined on these, maybe not for this season, but for next season things like this need to be seriously looked at by Ralph and anyone else that has a decision on the rules. If we're going to keep this sport alive we can't be cutting out new competitors because they have these types of systems. Todays systems are far different than they were 10 years ago, and the rules need to account for this.

Well we could make a class for them after a few are around.... We could call it JOCKEYLOT CLASS....... Just a thought

Thanks Jimbo and Matt. Would like to get Ralph's opinion on this as well.

Well hit me up if you need the number... I would just call him directly and ask for your own knowledge and or email him and when he responds with an answer...PRINT IT OUT AND KEEP IN GLOVEBOX....


I think this will stir up the lane for a min or two but would be neat in the long run.They have to adapt to all the changes out there somehow but till they get there own class for this... Disconecting and verification is all needs to be done im sure.

Quote :

Woofer is the term commonly used for a loudspeaker driver designed to produce low frequency sounds, typically from around 40 hertz up to about a kilohertz or higher. The name is from the onomatopoeic English word for a dog's bark, "woof" (in contrast to the name used for speakers designed to reproduce high-frequency sounds, tweeter). The most common design for a woofer is the electrodynamic driver, which typically uses a stiff paper cone, driven by a voice coil which is surrounded by a magnetic field. The voice coil is attached by adhesives to the back of the speaker cone. The voice coil and magnet form a linear electric motor. When current flows through the voice coil, the coil moves in relation to the frame according to Fleming's left hand rule, causing the coil to push or pull on the driver cone in a piston-like way. The resulting motion of the cone creates sound waves as it moves in and out.

The frame, or basket, is the structure holding the cone, voice coil and magnet in the proper alignment, and must be as rigid as possible. Cast metal baskets are the most expensive and the most rigid in all directions. Stamped steel baskets are cheaper but less rigid, and cast plastic is cheaper still and has come into common use.[citation needed]

An important woofer specification is its power rating, the amount of power the woofer can handle without damage. The power rating is not easily characterized (see below) and many manufacturers cite momentary peak power ratings which would damage the speaker if maintained.

At ordinary sound pressure levels (SPL), most humans can hear down to about 20 Hz.[1] Woofers are generally used to cover the lowest octaves of the system's frequency range. In two-way loudspeaker systems, the drivers handling the lower frequencies are also obliged to cover a substantial part of the midrange, often as high as 1000 or 2000Hz; such drivers are commonly termed mid woofers. Since the 1990s, a sub-type of woofer (termed subwoofer), which is designed for very low frequencies, has come to be commonly used in home theater systems and PA systems to augment the bass response; they usually handle the very lowest two or three octaves (i.e., from as low as 20 to perhaps 80 or 120 Hz).

See bold/underlined portion of above statement.

Also, I did a search of the pdf version of the rules on the site and it didn't find the 30% portion you speak of above, Can you tell me which section that is in so that I can find it? Thanks.

^^^^ on to something don't drop it!!!!

i remember at drag finals in cleveland there were a few of these type systems. man that stuff ws loud!

If usaci want to keep some of the competitors and get new one in the Northeast, they need to address this. There are many guys with multiple 10" and 12" midrange in the doors. I know because I did many of these install for customers.

Well, I have no problem unplugging the amp.