Ok, one more question. My buddy built my sub box for me (according to the design recommended by DIamond Audio). The Sub diameter is 9.2", but he cut it to ~9.5", leaving quite a bit of slop. How bad is this and what can I do to save the box. He already glued and screwed, so taking the baffle off will not be fun.

Thanks!

 

not a big deal as long as there are no gaps where air can leak out...just screw the sub in tight and let er rip

 

he might run into the problem of not enough material for the screws to bite into when he has the sub's mounting ring centered in the cutout.

 

you can attempt to build the ring back up with fibergrlass. wouldnt be too hard, but the way that i would do it is to router out a ring that mounts to the front of the box, then the woofer mounts to the ring. if you want you could then glass the front of the box from behind the ring for strength. Does that make sense? alright figure you could do a ring on the front face of the box. screw it to the box. then screw the speaker on. or you can go with screwing a piece of thinner mdf on and cutting the new hole then building the back up with glass... I would go for the first. .

 

Alright, thanks. I've got plenty of MDF left, so if I can't get the screws to bite, I'll first try getting the original baffle off and replacing it. If that doesn't work, I'll try your advice!

Are there any sound quality issues with not having a tight fit?

 

Make a ring large enough for the sub with a large lip. Then screw the lip of the ring to the box, seal with wood glue.

 

yeah guess that was an easier way to say it ***Damn you metal and your incongruent use of comprehensible sentence structure***



lol as for the sound it would really depreciate if it isnt sealed.

 

Yeah, my bad. Eloquence is often at a big 0 in the wee hours of the morning.


If he used an appreciable amount of wood glue he would not have a problem with the seal. Moreover, he could also run a bead of caulk around the ring, or the "flange" in order to ensure a complete seal.

 

Make sure to caulk the inside joints of your box before you drop your sub in. Air leaks steal sound levels and quality. (yeah, I used like 1/2 a tube of silicone on the inside of my box).

 

1/2 a tube of K-Y?

 

you know it! it seals like a ***** ****er!

 

Sense of humor for teh win.

 

is it a sealed box or a vented box?

 

wouldnt really matter. if its a ported enclosure any leaks would change the tuning frequency of the box, and again depreciate sound