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6th Order Bandpass for Alpine Type R - Video Page 3!


the_garynator

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Finally decided to get a video...sorry for the poor quality, just had my phone and couldn't take the time to upload in 1080p.

hard to see a lot of the flex, hence why i wasn't going to get a video, but turned out half ways decent. lmk what you think.

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1 12.... So crazy

thanks man!

Finally got a chance to get the results in from the port changes.

Threw them into excel quick..sorry for the poor layout...did it in like 5 minutes

Note: All of these results were at the same settings, car off, sealed at the dash...only changes made were port lengths. These are not full tilt results either...they are at a safe volume for the sub so that I could burp each frequency almost one after another.

6thOrder-Version1vs15_zpsca8a8f5e.jpg

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Sell me the box when your done? :D jk. But dang!! That is impressive. Just thinking that my current sub could be playing that low, and loud! Nice work!

 

'01 Dodge Stratass Sealed Trunk Build Log
2008 Honda Fit Sport Build Log

On 10/3/2013 at 10:00 AM, ROLEXrifleman said:

Anyone who says they knew everything they wanted out of life at 19 can go suck a bag of dicks cause they are lying to themselves or brought up in a cult.

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Finished reinforcing the rear of the box by adding a layer of MDF and routing holes for the ports
2013-02-05_20-31-12_344_zps154edb21.jpg

decided to countersink the ports slightly to make lining them up easier
2013-02-05_20-31-24_460_zps771655b4.jpg

Port flares mounted
2013-02-05_20-52-26_107_zpsce50100e.jpg


Routed plugs to fill the old port holes
2013-02-05_21-37-33_75_zps03456101.jpg


Taped them off to seal them
2013-02-05_21-37-26_767_zpscdfa72a2.jpg


Used scrap holes to mount them to the box
2013-02-05_21-37-43_705_zpsdd72dcf6.jpg


Taped off the ports to seal them...added a little extra to make it look nice lol
2013-02-05_21-56-22_691_zpsf4c9fcfe.jpg


Rear ports mounted
2013-02-05_22-30-18_52_zps4d426e87.jpg


Loading the box into the car
2013-02-05_22-46-43_469_zps72aa7fd5.jpg

2013-02-05_22-46-48_620_zpsc7f47cdf.jpg


Box is back together...I think it looks pretty wicked
2013-02-05_22-50-28_761_zpse0209649.jpg

2013-02-05_22-50-33_180_zps71416deb.jpg

2013-02-05_23-01-01_739_zps771d90ef.jpg

2013-02-05_23-01-11_835_zps025cd310.jpg

2013-02-05_23-01-25_36_zpse98e4c0a.jpg


Didn't have much time for testing, but I did a few burps...Here's my all out run. Car on, full tilt 141.36 sealed at the dash at 29hz! Gained 1.16db over the dual port setup!
2013-02-05_23-20-16_861_zps8c79bd83.jpg

Here's the rest of the results. These were done car off at the same settings as the other results I posted:
28hz - 140.75
29hz - 140.91
30hz - 140.87
31hz - 140.39

Now I just need to come up with a way to run longer ports on the front chamber to allow me to run more port area...Unfortunately I don't think this will be possible with the current design and be able to keep my rear seat up but we'll see.

Think the next thing I'm going to do after getting a full test on this box is to swap the sub into the OBCon ported box that came with it and meter it to have a baseline

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Those are on same power? nice

Looks like it's gona stand up, walk away and destroy humanity every second now!

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