Ways you have found to get xtra bass...

[audioholic 5,000+ posts]

CBFryman, I will give you this: rolling down the windows and gaining SPL is more often the case that losing it. I mistakenly wrote the opposite (brain fart). But, my reasoning, the bandpass effect (which IS what you started this debate over, as others are saying) still stands as the most widely accepted reason for this phenomenon. Now if you think that theory is incorrect, Im behind you 100% showing us why or disproving it somehow. If Im wrong, Id love to be corrected, because ultimately we are all here to learn. But unfortunately I dont think you've done that yet, I still stand behind what my research on the topic has found: bandpass effect.

Thanks for the lively debate. Have a nice day.

 

[DFW40 10+ year member]

Lean passenger seat all the way up.glove box down

sun visor at angle to seat

croud the steering wheel

fill car up with tool bags

take seats out of back of vehicle

Oh...did you mean louder to the ear for daily driving or on the meter?

dork

 

[CBFryman2 5,000+ posts]

LOL- you are still arguing this?
Earlier in the thread you clearly stated the increase in loudness from rolling down the windows of the car was due to allowing the pressure to escape. Audioholic said it was due to creating a bandpass effect. You were wrong and he was right.

//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

My reasoning isnt that it gets you louder more than not and that it was from allowing sound a place to travle. Like a Hemholtz Resonantor, not nessicarily like a bandpass enclosure though it could be though of that way.

Really I think we are argueing the same subject two different ways. but ok, yeah. He wins.

 

[T3mpest 10+ year member]

Both of your ideas are valid as a matter of fact, they are the exact same thing. A Helmholtz Resonator has teh same physics behind it as the port of a subwoofer enclosure! On the negative stroke, pressure is increased in the box. Air is then forced out of the port, alot of it, very fast. So fast, as a matter of fact, the pressure on the inside of the box is below the pressure on the outside, for a small period of time. This causes the air to go back in to the box, the size of th hole will allow this to occur more or less often, due to the amount of air that can be released vs pressure inside of the box. (hence why both box size and tuning effect overall output) This is exactly how a Helmholtz Resonator works. Air passes over the bottle, some goes in, as soon as you stop blowing, it rushes out of the tiny hole, then back in, due to the overcompenation of the pressure difference. I think Frymans only mistake is that whoever explained a Helmholtz Resonator may have confused his understanding of WHY it works.

In summation Helmholtz Resonator=bandpass effect!

 

[audioholic 5,000+ posts]

Nice post T3mpest, thanks for the different perspective. I think it was needed. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Calikid 5,000+ posts]

add a cap.

 

[Pickler 10+ year member]

hahah, so many of these answers actually made me lol

 

[audioholic 5,000+ posts]

Oh yeah, the original question (lol)... hey let me chime in...

Decrease your passenger compartment size (wall).

 

[Jep772 10+ year member]

stickers

 

[T3mpest 10+ year member]

Nice post T3mpest, thanks for the different perspective. I think it was needed. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

no problem