2.3 cu ft for which 15" woofer?

M@nJo
10+ year member

CarAudio.com Elite
My original plan was to use my box (2.3cu ft sealed per chamber) for a pair of 15" Diamond Audio D6's but turns out the eBay seller did not have them in stock after winning the auction. So I'm looking at other options that can fulfill this space requirement for 2 decent SQ 15" woofers but excellent at SPL. Many are against Alpine Type-R's sealed (which was my second choice). I'm looking to spend $200 per sub for brand new. The MB Quart RWE's sound real nice (I have the 12") but they recommend only 1.5 cu per woofer. If I ran these, would it cause damage to the woofer? What are the negatives of running more internal space than what the manufacturer recommends?

 
My original plan was to use my box (2.3cu ft sealed per chamber) for a pair of 15" Diamond Audio D6's but turns out the eBay seller did not have them in stock after winning the auction. So I'm looking at other options that can fulfill this space requirement for 2 decent SQ 15" woofers but excellent at SPL. Many are against Alpine Type-R's sealed (which was my second choice). I'm looking to spend $200 per sub for brand new. The MB Quart RWE's sound real nice (I have the 12") but they recommend only 1.5 cu per woofer. If I ran these, would it cause damage to the woofer? What are the negatives of running more internal space than what the manufacturer recommends?
fi q would work in that box. IF you run the mb quartz in that box they will play lower but may sound boomier. I would just get the fi q

 
My original plan was to use my box (2.3cu ft sealed per chamber) for a pair of 15" Diamond Audio D6's but turns out the eBay seller did not have them in stock after winning the auction. So I'm looking at other options that can fulfill this space requirement for 2 decent SQ 15" woofers but excellent at SPL. Many are against Alpine Type-R's sealed (which was my second choice). I'm looking to spend $200 per sub for brand new. The MB Quart RWE's sound real nice (I have the 12") but they recommend only 1.5 cu per woofer. If I ran these, would it cause damage to the woofer? What are the negatives of running more internal space than what the manufacturer recommends?
Altering enclosure size will affects its frequency response. As suggested in the first reply above mine, going larger tends to fatten the low-end while diminishing upper-bass response. But who is to say MBQ isn't recommending artificially small enclosures. Pop the sub into WinISD and play with enclosure sizes to see what the response curve does. This isn't 100% accurate, but should you a ballpark idea what will happen.
 
I never heard of the WinISD program. Buy maybe you can help me out //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

MB Quart recommends 1.5 cu ft and the box I have is 2.3. I been emailing woofersetc back and fourth and they brought up that MB quart doesn't have a set space requirement. They recommend the 1.5. Therefore, it will be ok to go bigger or even smaller. If I'm a user playing hip-hop music most of the time, would I see any benefit using a larger space requirement?

 
Prefer to get a hold something that can be sold later down the road easily. Those IXL's looks beefy but there DVC 2 ohm. I plan to run 2 dual 4-ohm subs to get the 1ohm power off my sub amp.

The MB Quart Premium series looking promising. Although they suggest 1.5 cubes, what can I expect with 2.3 cubes giving it rated power?

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

M@nJo

10+ year member
CarAudio.com Elite
Thread starter
M@nJo
Joined
Location
bay area
Start date
Participants
Who Replied
Replies
7
Views
671
Last reply date
Last reply from
M@nJo
IMG_20260515_202650612_HDR.jpg

sherbanater

    May 15, 2026
  • 0
  • 0
IMG_20260515_202732887_HDR.jpg

sherbanater

    May 15, 2026
  • 0
  • 0

New threads

Top