I was originally installing four 12's and a comp level 11" in my Integra, then decided the 11" was kind of dumb, even though it would be receiving double the power of the 12"s, it would still sound off or not even a noticeable gain, so I decided to not to use and it get another 12" in it's place. However, I have already made all the boxes to exact measurement's for my 'teg, so I can't really change the size of the box volume. I need to change the volume of the box because the 12's are all in 1.185 cu ft boxes, and the 11" would've been in a 1.45 cu ft box. I was going to just use this box for the new 12" and cut the hole out a little bigger, but then is it going to sound off if each 12" is in a 1.185 cu ft box and just that one is in a 1.45 cu ft box. Will this sound bad. I was thinking of just not using a 5th sub at all, and putting a 17" screen in it's place (flush mounted, and would fit nicely). Any comments or suggestions on this? I want the 5th sub, but it not using it would save 400 watts (which helps in a 2000 watt RMS system (true calculated, not BS advertised on amps)).
Thanks

 

It's not that it's .4 cube that matters...what matters is the percentage difference.
If they were 7-8 cube enclosures then no, the .4 wouldn't make a difference.
Also, the difference is only .265 cube if the numbers you stated are correct.

But at 1.185 and 1.45, that means that the enclosure is ~22.4% larger than the other boxes. You can get away with 5% or so sometimes, but it sounds to me like you should either just scrap the box or rebuild it to match the others.

To put it in perspective, if you were talking about a 4 cube box, this extra box would be 5 cube. The response will be different.


Good luck in whatever you do, I personally would forgo the extra effort if you already have subs/amps matched up for the 4 subs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CrazyModGSR &raquo;</TD></TR><TR><TD CLASS="quote">I was originally installing four 12's and a comp level 11" in my Integra, then decided the 11" was kind of dumb, even though it would be receiving double the power of the 12"s, it would still sound off or not even a noticeable gain, so I decided to not to use and it get another 12" in it's place. However, I have already made all the boxes to exact measurement's for my 'teg, so I can't really change the size of the box volume. I need to change the volume of the box because the 12's are all in 1.185 cu ft boxes, and the 11" would've been in a 1.45 cu ft box. I was going to just use this box for the new 12" and cut the hole out a little bigger, but then is it going to sound off if each 12" is in a 1.185 cu ft box and just that one is in a 1.45 cu ft box. Will this sound bad. I was thinking of just not using a 5th sub at all, and putting a 17" screen in it's place (flush mounted, and would fit nicely). Any comments or suggestions on this? I want the 5th sub, but it not using it would save 400 watts (which helps in a 2000 watt RMS system (true calculated, not BS advertised on amps)).
Thanks</TD></TR></TABLE>I agree with Phat_Jax, somewhat, I would just scrap the 5th sub, but if you want it, just use up the extra volume, install .265 cu-ft of bracing in the box, that way it would have the same volume as the others. 94