How to make your system louder outside the car?

[Beermanpb14 10+ year member]

Roll your windows down (more air for the subs) , if its an SUV face the subs towards the rear it bounces off hatch and the reflection of the sound gets louder. That's what i've experiemented with my friends and thats what we've found out so far as stuff thatll help w/o paying anything... Dynamat, any of that deadening will reduce the vibrates and airways through the doors and floors which will in turn make most of the sound reflect out the windows and will be louder. Nothing else really I can think of atm... that's the best i can do with what I'VE experienced

 

[BassAce 10+ year member]

Turn your vehicle into a convertible, but then you wouldn't get the benefits of resonance.

 

[SBLAZER]

hey sblazer have you gotten you l7's metered yet?

yea 153.3@44hz 151@34hz wit the 1 2500d