garychurch84

LMAO!Depending on where you get them can get pretty pricey.

Found this on the MTX site. Due to the fact that all the sound from this type of enclosure is produced by the vent, sound quality may not be as good as that of a properly designed sealed or ported enclosure. However, there are times when bandpass enclosures are the best choice to use. In a sedan application, bandpass enclosures are often used due to the inability to have multiple drivers mounted in the rear deck. In a limited space situation, efficiency can be sacrificed to gain deeper bass extension. In a situation where ultimate SPL is the goal, you can sacrifice bass extension, and enclosure size to produce a very efficient enclosure. Efficiency gains in the range of 5-10dB are not uncommon! As with any enclosure design, there is no free lunch. As you change one parameter to gain another, many times sound quality is degraded as well. The frequency response in the pass band of a single reflex enclosure can be described with an “s factor”. S values that are of interest to us fall between .7 and .4. Values beyond this range either have peaky response, or poor sonic quality. An s of .7 refers to the flattest pass band available, where an s of .4 refers to the widest useable pass band.

^^me too

Nice!!!

WinISD on Facebook. Download the Win7 version if you have Windows7 as it will work best.Thx man,I got windows 8 but it should still work

TEST TEST AND MORE TESTING IS WHaT I GOT OUT OF IT!

Look at my thread on "port location,need opininions"Q post some good info on how to use the calculator on 4th bandpass. http://www.soundsolutionsaudio.com/forum/topic/61666-port-locationopinions-needed/page-3

That's the same design I came across while searching google for box designs for my Pontiac GP.I don't like the setup myself rather have a standard center vented enclosure.The port looks BS to me.

Where can I find a trustworthy WinISD?Download 3 or 4 different ones with no luck.

Thx Q

I keep reading about ratios like 2:1 for example for every cube sealed use 2 cubes on the ported side. Last topic I seen about a 4th order guy came in sayin he wanted to do a 4th for a sundown use useing X ratio,poor guy got throwed under the bus lol. 4th order seems to be a touchy subject here lol so I'm treading lightly

awesome:)

that calculator is pretty damn close to doing it by hand. Remember Winisd doesn't model bandpasses correctly. It seems to make the gain on the low side. I calculated about 10 by hand using the Loudspeaker cookbook and the car stereo calculator was extremely close on all of them Maybe I don't understand how this works just yet lol,I'll take that back I know I don't.Vr and Vf seemed like a lot of cubes for the icons or is that not what this ?

I found this calculator during my research looks to be BS.What do you all think? http://www.carstereo.com/help/Articles.cfm?id=27

I wouldn't mind trying it,I know jack squat about box design tho.I'll search a little to see what I can find.

I think it was a 4th order like mentioned earlier,I think there was pic give me a sec

This what I started out talking about.Would benefit any from firing my port thru here?

that's not a bad idea

If you are planning a comp "Burp" or 30 sec SPL enclosure I'd suggest tuning WAY higher than 44 htz ...tbh I think I just wanna be a bit louder than my current setup I may only compete a few times a year.I want to get a good bit of exp before I get that deep in

The demensions I posted in the in the first quote is the absolute biggest that can go in my car,anything bigger will have to be built in the trunk. I'm wanting to to tune around cabin gain which is 40ish I don't know the exact sweet spot.while I was searching google I found one guy on SMD said. His 98 gtp peak at 44hz I know the Icons aren't really spl but I feel there's more numbers to be had.this box will only be used when I decide to compete

I know that stuff is sticky as hell

I've also been thinking about this box being more for numbers if that changes anything

lol,hmmm didn't think to try it in the rear deck