Quentin Jarrell

Yea

If you do 4cft net and tune to 30 hertz the enclosure will be about .33 ft smaller and have more output from 50 to 27 hertz.

3.3 tuned to 28 looks good. I didn't do any calculations per the physical deminsions though. You DO need to increase port area. Use no less than 73.

Production coils came in today. They are 10 mm longer to bring xmax to 33mm one way. Due to the extra mass these are aluminum. New coil next to the old coil

73 inches of port area will be plenty. I don't see that sub having more than 25mm of coil over hang. Instead of using those programs for cut sheets. I recommend doing a 3d drawing in sketchup to verify all part deminsions.

Use the formulae for the circumference of a circle.

Should've got some Benadryl. It's gonna be a looooonnnggg flight for ur neighbors.

Most of his old stuff is not considered high end. He mainly designed mass marketed type product that was affordable. He has made some pretty bad ass tube amps and other stuff in recent years. But the older stuff is just good, akin to alpine or JL, not really hifi

Bob Carver is a bad mofo.

If I do change my apillars I would like to use a tweeter that has less simblance (pronounced "s" sound in female voices) than the LGP's that I have now. Using the LGP's on-axis may make simblance worse, idk. I like the small format (physical size) of the LGP's. The Morel 4" mids I have probably have less distortion than the JL's I am using now. Unfortunately I haven't been able to find Klippel graphs for the Morel's.Good luck to you too! Go to Voice Coils magazine's website and sign up. Once you register you can access all past editions online. Vance has tested damn near every speaker on the planet. Along with Vance's tests and simulations he also posts Klippel results from Pat Turmire and normally goes into good detail explaining everything.

So how much for the cold air intake?

Buddy I went to school with. http://www.fallenheroesmemorial.com/oif/profiles/mcleesejustind.html

I read that and was thinking...I sure the hell wouldn't be walking on my birthday.

LI's are some nice subs. You'd be even more impressed with a proper enclosure.

normally people prefer a Q of around .707. It gives the flattest responce with the lowest rolloff point. However some like a slightly higher Q around .8-.85 that offers a slightly warmer feel with a little increase in DB. I dont have the formulas with me to calculate But I,m 99.999999 percent that the VAS is wrong. Vas is directly related to enclosure volume.

yes, I'm aware what 2nd and 4th order is. However if you have any experiance what so ever in designing enclosures or actually took the time to learn a little bit you would understand that a sealed enclosure will never have a lower roll off point than a lower tuned vented enclosure. (go back to my first post I said almost as a high tuned vented enclosure could be higher, but who is gonna tune a sub enclosure above 45 hertz) To make it a little easier for you since you obviously didn't bother taking the time to model anything I drew you a little picture.

I'd expect the vas to be around 15-20 liters giving the other parameters.

Yea I calculated it but I believe that the VAS has to be wrong seems a little low Going by the parameters you need .08 cubic feet for a q of .7

Nvm. That was for their other 8.

It would be soundsplinter.com

Per their site they recommend .5 sealed. I haven't modeled it so I'm not sure what the Q is at that volume.

Just unplug the RCA from the bass amp and see if the crackling in the highs stop At the amp

Don't waste your time with all that yet. You say the sub does not increase with volume? Unplug the RCA at the amp and verify what the voltage is doing. It should stop increasing at the point when the sub volume would stop increasing. I'm betting either a bad sub amp or bad head unit. If it was just the highs fking up I'd say the crossovers were more than likely mounted in the doors and got wet.

I haven't a clue what you said and I highly doubt you do either.

Hey mods. Ya'll need to get a better pair of boots.