box for 4 12dvq infinity perfects

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southside

Copper - Posts: 220

Joined: March 08, 2004

Location: United States

Posted: April 10, 2004 at 12:53 AM / IP Logged

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?

southsider

customsuburb

Gold - Posts: 1,813

Joined: January 17, 2004

Location: United States

Posted: April 10, 2004 at 11:01 AM / IP Logged

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.

southside

Copper - Posts: 220

Joined: March 08, 2004

Location: United States

Posted: April 10, 2004 at 11:05 AM / IP Logged

how many ports? does it matter? should i use ployfill? if so how much?

southsider

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: April 10, 2004 at 11:47 AM / IP Logged

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.

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southside

Copper - Posts: 220

Joined: March 08, 2004

Location: United States

Posted: April 10, 2004 at 1:33 PM / IP Logged

will i get good sq will ported or not really

southsider

southside

Copper - Posts: 220

Joined: March 08, 2004

Location: United States

Posted: April 10, 2004 at 1:34 PM / IP Logged

DYohn thank u for your time u r the shiznit

southsider

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: April 10, 2004 at 1:55 PM / IP Logged

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.

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southside

Copper - Posts: 220

Joined: March 08, 2004

Location: United States

Posted: April 10, 2004 at 3:27 PM / IP Logged

u r the sh*t:) this maybe a dumb question. but just ONE port all together or ONE PER SUB chamber?

southsider

southside

Copper - Posts: 220

Joined: March 08, 2004

Location: United States

Posted: April 10, 2004 at 4:17 PM / IP Logged

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?

southsider

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: April 10, 2004 at 4:36 PM / IP Logged

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.

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