What are some SPl tricks or tips you have learned?

[05fronty 5,000+ posts]

put a fat guy in the passenger seat with you

 

[r0llinlacs 10+ year member]

You should try sub up or forward and port to the passenger side. Might be surprised at the outcome.

Doing that eliminates trunk gain, and in SUV's eliminates cabin gain. In all my experiments in trunks, facing rear with sub AND port will net up to 5db versus front or up firing, depending on the car. Front or up firing is a little cleaner and more even sounding, but not as loud or punchy in my experience.

 

[r0llinlacs 10+ year member]

put a fat guy in the passenger seat with you

LOL, passengers actually absorb the sound waves and make it less loud.

 

[NASTY08IMPALA 5,000+ posts]

[quote name='r0llinlacs']Doing that eliminates trunk gain, and in SUV's eliminates cabin gain. In all my experiments in trunks, facing rear with sub AND port will net up to 5db versus front or up firing, depending on the car. Front or up firing is a little cleaner and more even sounding, but not as loud or punchy in my experience.[/QUOTE]

Trunks with subs forward and port to drivers side is pretty dam loud ..as good or better than subs and port back ..thats how.my new box wil be setup @dbeez ;just did a box for 2 12" zv3.s on a saz4500 pretty nasty

 

[dbeez 5,000+ posts]

Yeah I will disagree with some of that statement.

 

[Falcons 5,000+ posts]

Yeah I will disagree with some of that statement.

What statement? And what parts?

 

[dbeez 5,000+ posts]

What statement? And what parts?

Give me a bit to get to a comp my phone doesn't like this sub forum.

 

[dbeez 5,000+ posts]

Doing that eliminates trunk gain, and in SUV's eliminates cabin gain. In all my experiments in trunks, facing rear with sub AND port will net up to 5db versus front or up firing, depending on the car. Front or up firing is a little cleaner and more even sounding, but not as loud or punchy in my experience.

ok i will disagree with the 5 db gain and the cleaner sounding that is a peronal prefrence type of thing what one person finds soothing another will hate so thats your opinion. subs forward and port side have yielded great results when done right box specs tuining and whatnot but test test test and you will find what is best in your application as every vehicle is different even when they are the same car sometimes the results will vary.

 

[pro-rabbit 5,000+ posts]

Doing that eliminates trunk gain, and in SUV's eliminates cabin gain. In all my experiments in trunks, facing rear with sub AND port will net up to 5db versus front or up firing, depending on the car. Front or up firing is a little cleaner and more even sounding, but not as loud or punchy in my experience.

What all have you actually tested to give you this number? Most trunks that I (and many others) have built to get loud did not fire back at all.

Also, to suggest anything would give someone a 5db increase is....well...just not accurate.

 

[r0llinlacs 10+ year member]

I had an 87 cadillac that sounded horrid with front firing subs. Ported or sealed, it didn't matter. Rear firing did net me 5 more db. But it's different in every car. My car now only benefits 1-2db from rear firing.

 

[pro-rabbit 5,000+ posts]

If they are sounding "terrible", that has more to do with enclosure design and various settings then anything. Most of the time it is not as simple as just moving the enclosure around because it does load differently.

 

[NASTY08IMPALA 5,000+ posts]

I had an 87 cadillac that sounded horrid with front firing subs. Ported or sealed, it didn't matter. Rear firing did net me 5 more db. But it's different in every car. My car now only benefits 1-2db from rear firing.

Ur talking subs and port forward and yes i agree sound bad unless u seal off from cabin...were talkin port firing off drivers quarter panel

 

[mlstrass 5,000+ posts]

LOL, passengers actually absorb the sound waves and make it less loud.

Maybe on your planet but on Earth I've seen numerous vehicles gain .1 - .3 on the meter with a passenger and NONE have ever lost

 

[mlstrass 5,000+ posts]

Doing that eliminates trunk gain, and in SUV's eliminates cabin gain. In all my experiments in trunks, facing rear with sub AND port will net up to 5db versus front or up firing, depending on the car. Front or up firing is a little cleaner and more even sounding, but not as loud or punchy in my experience.

I will be sure to tell all the loud guys at finals that they're doing it wrong...

 

[05fronty 5,000+ posts]

LOL, passengers actually absorb the sound waves and make it less loud.

actually i gained .2 putting someone up there when i metered in my frontier. not lying either. i have people who can vouch