Intermediate Class

• Maximum of two batteries can be used
• Unlimited farad capacitance
• Amplification will be limited to a maximum of ONE channels per loudspeaker
• Strappable and/or stacked amplifiers will be counted as TWO channels

Competitors will be further divided based on the cone area of all woofers in their system with a diameter of 8" or larger. The TWO divisions are as follows:

0-300 sq"
301 – 600 sq"

*Note* woofer diameters are manufacturers listed size not the actual external diameter of the loudspeaker


Other Regulations

• box height may not exceed 21 inches from the vehicle floor to the top of the box
• box has to be located in the cargo area of the vehicle
• amplifiers and capacitors may be mounted to the back of rear seats
• amplifiers under seats are permitted
• 3rd row seats may be removed from the vehicle to allow for more room for box and other equipment
• 2nd row seats may be folded down AND/OR removed from the vehicle
• subwoofer enclosures may not be placed atop of rear seats, however, rear seats DO NOT need to be fully functional
• front seats may not be removed from the vehicle
• front seats may be moved, folded and other wise adjusted at competitor’s discretion
• battery running voltage may not exceed 15 volts
• aftermarket alternators and batteries are allowed
• battery must be installed in the stock location
• secondary battery may be installed anywhere behind the B-Pillar
• a battcap will be counted as a battery
• competitors may use a podium to operate a head unit


SPL Measurement

• competitor goes through a 30 second run where that competitor's peak spl is measured
• microphone can be placed anywhere on the windshield
• windows may not be open
• doors may not be open
• trunk/hatch and hood of the vehicle may not be open
• competitors are permitted to use any recording materials at their disposal

[ January 20, 2005, 12:24 AM: Message edited by: JohnnyToronto ]

 

if both batteries are in the trunk u gona run power and ground from there to the alternator and other things to make the car work?

 

heheeh why would it not be?

 

might want to include that..vehicle MAY be running during testing...

and the battery thing...I run 8 6volt batts right now in my hatch area of the rabbit..no battery upfront. and the car works great...it's called a distro block

and yes I do have 1/0 running power and ground to the front..as most more serious competitors do nowadays

[ January 20, 2005, 10:00 AM: Message edited by: MTA ]

 

why would vehicles not be runing???? someone please point this out to me?? why does that need to be specified. do u listen to your stereo and drive around with the car off???

u guys want to have a rule that says u can have the batteries either in the trunk or under the hood?

 

Well.. to be honest.

Last year when I ran IASCA shows I'd usually do my runs with the car off.

I didn't want to kill the alternator and I could usually win with the car off

I still think it should say you need a battery in the stock location though.

The last thing you need are people bringing in huge batteries that don't even fit their cars.

[ January 20, 2005, 10:32 AM: Message edited by: JordyO ]

 

In street classes of DB Drag you can't have your car running so that is why people are asking.

Either way, I think the rule should be stated on or off just for clairty.

Thanks,
Craig G

 

i was thinkin one battery in stock location..

ok who wants what??

one battery in OEM spot or both batteries can be in the trunk??

lets make the rules to accomodate as many ppl as possible

[ January 20, 2005, 10:47 AM: Message edited by: Vladi ]

 

One battery in OEM spot.

No one says it has to be hooked up to the system.

If you want to separate your system from the cars electrical then run with 1 battery in the trunk, just for being a numpty.

 

yes i was thinking that as well. problem is ppl are goin to ask why cant they just run 2 batts in the trunk if they are not connected to the alternator.....we dont want that.