Building a sub box and a systems qtc

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=48884
Printed Date: April 24, 2024 at 12:40 PM

Topic: Building a sub box and a systems qtc

Posted By: TI240
Subject: Building a sub box and a systems qtc
Date Posted: January 29, 2005 at 3:34 PM

I am trying to build the best possible box for two eclipse titanium 12's, they will be powered by an eclipse DA7232. My goal is to get a pretty good combo of sq and spl with a sealed box. My question is this: how do i know what to use as the value for qtc when calculating my box size? I've read that a number in between 0.6 and 1.1 is ok but i have also read things that contradict this. What would using larger/smaller number do to the performance of sub? Any help on this would be greatly appreciated. Thanks

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2005 Nissan Frontier - stock
comming soon...
Eclipse CD8443 deck
Eclipse PA5422 4-channel
Infinity Kappa Perfect 6.1 front
MBquart DKE116 rear
Eclipse SW9122 the 12's
Eclipse DA7232 bass amp

Replies:

Posted By: stevdart
Date Posted: January 29, 2005 at 3:47 PM

haemphyst, et. al. posted some good info in this thread on the subject of Q. Read this and check back in on what Q you think you might want to shoot for.

Posted By: TI240
Date Posted: January 29, 2005 at 5:11 PM

wow, thanks. that's exactly what i was looking for - tons of info. sounds like the way to go is with 0.707. thanks again for the help

-------------
2005 Nissan Frontier - stock
comming soon...
Eclipse CD8443 deck
Eclipse PA5422 4-channel
Infinity Kappa Perfect 6.1 front
MBquart DKE116 rear
Eclipse SW9122 the 12's
Eclipse DA7232 bass amp