Displacement Or Proper Box?

Post by **GlassWolf** » Mon Mar 07, 2005 12:03 am

I noted mine gets loud just due to being aperiodic and thus -3dB down from sealed for SPL. The driver control is astounding though. If you want clarity and detail, that's teh route to go.

I never gave the CVR a bad rap actually.. we promote them a lot here.. I happen to think it's a great sub for the money, considering what little competition there is in the under $100 range for a decent twelve.

as for using the full potential of the XXX, I'm not pushing the subs to their limits, but that was my intention. I wanted the subs to have plenty of control, and movement with ample reserve power for transient response. Remember this system is set up solely for quality, and not for DBdrags. I'm more concerned with accuracy and realism than I am with drowning out anything but 500ci or engine displacement sitting 2' in front of me and pouring exhaust out through full length headers and 3" pipes.

as a note, when I say 'driver displacement' I'm talking about cone area and excursion together. not just the throw. displacement would refer to the total amount of air the driver is capable of moving, and sound pressure does boild down to moving air. It's just a matter of how much you can move based on efficiency and power on hand, vehicle sympathetic response, et al.

oh, on that earlier one about which is louder, the 8s or 12s.. I get asked that about a dozen times every day, and I get sick of hearing it, but the answer is always the same.. it entirely depends on a lot of factors. your car, how much power each sub gets, teh box type and design, listening preferences, the specific subs, and more. no way to answer that one without knowing all of the data I'd need to formulate an accurate calculation, even for a ballpark in my mind.

spkrman · Post by **spkrman** » Mon Mar 07, 2005 12:34 am

KikiTheCat wrote:sound pressure does boild down to moving air. It's just a matter of how much you can move based on efficiency and power on hand, vehicle sympathetic response, et al.

yep, which isn't necessarily proportionate to the displacement of the driver.

Ryan from Ohio · Post by **Ryan from Ohio** » Mon Mar 07, 2005 4:25 am

Wait, so the more air you can displace the more "potential" your setup has?

I rest my case....

spkrman · Post by **spkrman** » Mon Mar 07, 2005 4:37 am

Ryan from Ohio wrote:Wait, so the more air you can displace the more "potential" your setup has?

I rest my case....

didn't say that.

I agreed to:

"sound pressure does boild down to moving air. It's just a matter of how much you can move based on efficiency and power on hand, vehicle sympathetic response, et al."

Which doesn't say HOW MUCH air you can move is what matters... its HOW you move it.

If we were outside trying to play 20hz, then yea, more displacement would be the way to go.

Ryan from Ohio · Post by **Ryan from Ohio** » Mon Mar 07, 2005 5:34 am

Like I said, its not an end all be all statement, but it does hold its weight

Keep in mind them posts are only dealing with that one factor. If you would like to add to the post with the other factors PM me the info you would like added.

spkrman · Post by **spkrman** » Mon Mar 07, 2005 10:52 pm

hehe, would be very long to FULLY cover.

Too much work for me