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Ported or bandpass??????


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Well i've been entertaining ideas and throwing some thoughts around until I can get my money right. Basically I have narrowed my options down to a few. Here are the two that I am on now:

Two 12" or 15" DC XL's in a ported box tuned to 32Hz on a DC 5k.

or

Four 12" or 10" DC Level 3's in a 4th order bandpass on a DC 5k.

I already have the amplifier and have just sold my 15" XL locally. I put 12" or 15" and 12" or 10" depending on what I can fit with the room that I have. The original plan was a pair of 12" XL's, but in order to get the proper enclosure I would be VERY VERY close to building in my trunk, so if i'd build in the trunk I might as well go with 15"s, depending on if I can find a place for my batteries or not. Both setups would be sealed off into the cabin and I am working with a little over 6 ft^3 if I build in the trunk. I am hoping to have enough power to possibly compensate for any lack of space.

My goals are basically the generic sql answer you see. I seriously want to nail 28-30Hz, but still be able to see a high 140's on the meter.

Thanks for your thoughts and opinions guys. I have yet to play with bandpass enclosures so I would be seeking help for a design from one of the experts on here, so just answer assuming that the box will be designed properly. :drinks:

On 6/30/2011 at 1:11 AM, 'Ray' said:

Acoustical energy is free. Electrical energy is not.

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Where does your car peak? If its high (40+Hz), bandpass would probably be the better option for you.

On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

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Where does your car peak? If its high (40+Hz), bandpass would probably be the better option for you.

I have honestly yet to figure that out. My first time metering I was tuned at 34Hz and peaked at 41Hz.

Second time I was tuned to 32Hz with an aero and peaked at 36-37Hz.

BeAlsTar I think is how it's spelled? Has a Grand Am which is the brother/sister car of my Alero and I believe he was peaking around 42Hz tuned at 36Hz?

On 6/30/2011 at 1:11 AM, 'Ray' said:

Acoustical energy is free. Electrical energy is not.

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You won't have room for a bandpass with 4 12's in there unless you wall....

c'mon now, if i was shooting an 8 year old, it wouldnt be MY 8 year old.

i recently got a Pyle PL1590BL and i was building an enclosure for it tuned to 25 hz. i didn't have any tools to cut a circle so i hit it with a big hammer.

2003 Infiniti G35 Sport Sedan

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You won't have room for a bandpass with 4 12's in there unless you wall....

I was figuring...

That probably where your box was peaking at.

That was my peak frequency on the meter. I am still unsure of the cabin resonance off the top of my head.

On 6/30/2011 at 1:11 AM, 'Ray' said:

Acoustical energy is free. Electrical energy is not.

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Hmmm... Yeah. What do you guys think of two 12" XL's in a 4th order? On my DC 5k do you think I may be able to get more low-end output from this option than two 12" XL's or 15" XL's in regular ported boxes?

On 6/30/2011 at 1:11 AM, 'Ray' said:

Acoustical energy is free. Electrical energy is not.

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