box for 4 12dvq infinity perfects
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=30094
Printed Date: July 14, 2025 at 11:06 PM
Topic: box for 4 12dvq infinity perfects
Posted By: southside
Subject: box for 4 12dvq infinity perfects
Date Posted: April 10, 2004 at 12:53 AM
ok this box will be a first for me so kind of worried. i want to go with a ported box. do the subs need to be chambered or what? an how many ports should i have for the four subs. they are dvc400w rms 1600peak. amp 1501bd rock amp. so anyone please lend me your suggestions.i think i kno how to wire it but i want bass plus good quality sound no distortion. plus should i use polyfill?
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southsider
Replies:
Posted By: customsuburb
Date Posted: April 10, 2004 at 11:01 AM
You should almost always put subs in their own chambers. Try putting each sub in their own 2 cf chamber and using one 6.8" by 4" in each subs chamber.
Posted By: southside
Date Posted: April 10, 2004 at 11:05 AM
how many ports? does it matter? should i use ployfill? if so how much?
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southsider
Posted By: DYohn
Date Posted: April 10, 2004 at 11:47 AM
Infinity Perfect 12 likes a 1.75 CUFT enclosure ported with 1 port at 4" X 12" (approximately.) This will result in a system tuned to 39Hz and the sub will handle approximately 350 watts RMS. Place the port on the same baffle (wall) where the speaker is mounted. Use polyfill to line the back and side walls of the enclosure. Build an enclosure for each sub, do not try to use shared space. This is the SPL oriented setup for a Perfect. For SQ, use 1 CUFT sealed chambers. ------------- Support the12volt.com
Posted By: southside
Date Posted: April 10, 2004 at 1:33 PM
will i get good sq will ported or not really
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southsider
Posted By: southside
Date Posted: April 10, 2004 at 1:34 PM
DYohn thank u for your time u r the shiznit ------------- southsider
Posted By: DYohn
Date Posted: April 10, 2004 at 1:55 PM
No problem, but what the heck is a Shiznit? :) In a ported enclosure, a Perfect will produce decent SQ as well as good SPL. They are, in my opinion, a very good compromise-between-the-two loudspeaker. ------------- Support the12volt.com
Posted By: southside
Date Posted: April 10, 2004 at 3:27 PM
u r the sh*t:) this maybe a dumb question. but just ONE port all together or ONE PER SUB chamber?
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southsider
Posted By: southside
Date Posted: April 10, 2004 at 4:17 PM
ok 2 questions. will a sealed box filled with pillow stuffing give off the same bass an sq as would a box with ports with or without stuffing? a n 2nd one if i build a ported or sealed should i build or buy it smaller than the specs to wich infinities says to , since the stuffing makes the woffers thinks it's a bigger box?
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southsider
Posted By: DYohn
Date Posted: April 10, 2004 at 4:36 PM
One port per chamber. Ported always produces higher SPL than sealed with the same amplifier. Sealed almost always delivers higher SQ. Build to the MFG recomendations, stuffing or not. Adding polyfill after you build if you need deeper bass is what I recomend. ------------- Support the12volt.com
Posted By: southside
Date Posted: April 10, 2004 at 4:54 PM
u r the king:)
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southsider
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