Final pics - sonosub

burdette

Here are the final three pics. I still don't know how to put more than one image on the same page, so I have to do this three times.


It is completely finished, including spiked feet that finally came today. We decided to skip the sock. The digital camera is harsh, it doesn't look quite as 'rough' in person as in this photo.

burdette

Up the tube.

burdette

And finally, the base before the tube. No spikes on this, I ended up doing the tube before the spikes arrived.

F1nut

He's created a monster.....how does it sound? Are you happy with it? Good job, bro.

Dr. Spec

Looks like a Bengal tiger - cool. Again kudos from design to build - great job. Have you pushed it at all from an SPL standpoint?

wallstreet

Originally posted by burdette
Up the tube.

Wow, I just got a little horny. Did you have to use pink???:D

HBombToo

Originally posted by wallstreet


Wow, I just got a little horny. Did you have to use pink???:D

quick!!!! someone get wallstreet a sock!:p

Can't wait to hear it!

HBomb

Ron-P

Looks great, got specs?


Peace Out~:D

goingganzo

that looks cool the lineing liiks good. i bet it was easer than what i used. now you need a bass cd to make it thump.

ps i just ordered a 3rd av15 for my car. my curent sub is dieing. i would have gotten a av12 but the 15 is not that much more.


happy thumping.

burdette

Ya, pink was the only choice. But, I remember seeing a site where a guy tore down an early SVS sub, and the lining was pink fiberglass insulation. This one is actually pretty cool.. because of the different "body" zones, it has varying types and sizes of ridges... I figure that can't hurt acoustically over consistent ridges.

Have not pushed it on SPL yet because it hadn't been complete, and I wasn't going to push it yet.. a sort of break-in period I suppose, plus me being a little scared something will break! That'll pass....

Plan on doing a final FR sweep as it sits now (where it will stay), and moving it to the middle of this room, just see what I get (you said mic 3' away, half way up the tube, correct?)

My wife is at least somewhat interested.. we watched U-571 a couple of nights ago.. yesterday she asked if we could watch the depth charge scenes with the sub out and then in the system.

The only other thing I MAY do.. is I may slit my remaining piece of tube and wrap it / glue it around the current tube. That is supposed to make the tube more dead.

Dr. Spec

I hope you were watching U-571 in dts - the DD version is positively tame in comparison.

Unless you want a big gap along the entire length of the sub, I wouldn't wrap the other tube around it. I like your "buy a bigger tube and slip line some concrete" idea better. I really don't see it as a big deal sonically. I have read the sonotube stuff could be a bit "deader" acoustically, that's one of the reasons SVS abandoned it and went with proprietary tubing. Regardless, I think the pink "vagi-foam" pretty much takes care of any acoustic tubing issues. BTW, my SVS does use pink fiberglass inside, FWIW.

Splitting the mic height is a good compromise for a ground place quasi anechoic sweep - the mid bass will come from the woof, but most of the ultra deep stuff will come mostly from the vent.

I have screwed around with the sweep on occasion and tried short interval bursts (to keep the VC from frying) at the really low frequencies. Try 100 dB at 20 Hz for a few seconds - my triple vents are moving enough air to dry your hair - seriously.

Doc

burdette

Well.. I'm going to execute a post-production modification, which will put the sub back to what my original design was. The platform the amp sits on has to go. I knew I'd need a rubber pad of some sort, but I was home today (with sick kids) and listened to the DTS track of U-571. That little platform buzzes very nicely at no-doubt some high-frequency multiple of around.. oh, I think it was 50Hz or so. I found it on a sweep, confirmed that it was a serious problem with the movie. Obviously I was at a higher SPL than is usual. I considered trying to brace it, but it was expendable from the beginning and whacking it off *ensures* it won't buzz. So.. I've a little trim to make. I liked that little platform. Oh well. That is why the amp box is made to sit on the ground.. it case it had to.

Attached is the result. Oh.. guess you can't add an image in an edit.

burdette

Here is the result. The buzzing is gone.

I'm listening to the DTS track on U-571.

Goodnight, all.

RuSsMaN

Whats that in the pic?

Is that what some call a Kaiser Blade? I call it a Sling Blade.

Cheers,
Rooster

F1nut

It's a Japanese hand saw. Best damn hand saws ever made. I own 6 different kinds and I'll never use a western style saw again. Cuts on the pull stroke vs the push.