ABXX49

How much power are you feeding it?

I DO TOO! They have a saw like that at our local Lowes. Is that your personal shop? If so, I'm jealous...

I had a problem that sounded just like that. It turned out to be my crankshaft positioning sensor.

Is that two cubes for the sub, or 2 cubes for the sub and port? I'd say 32-34Hz would be a fine tuning frequency.

Hmmmm might be just what I'm looking for for my 2way active >

added

There is no real way to tell. Sorry.

A good schematic is the most important thing. You'll need a router to cut the circle holes, glue (Titebond III is the glue of choice), clamps, screws, a table saw (or handsaw if you want to do it the hard way) Other than that, it's pretty straight forward. Just make sure EVERYTHING is square, it will save you from a lot of head aches. 3/4" MDF is the wood typically used for box construction. You can also use a good 7+ ply plywood, but you're looking at almost double the cost per sheet there.

I'm building another HT subwoofer, this time for my roommate. The box is 4.8 cu ft tuned to 21Hz I believe. (I would have to check that again, I don't have my paper right beside me. I already have the braces planned out for this. The woofer is going to be an SI MAG d2 15" powered by an O Audio 500w plate amp. My question pertains to polyfill though. Do any of you guys recommend polyfill? Also, since this just makes the box ACT larger, does it have any effect on power handling?

I would like to see some Flatlynes. I haven't really heard to awful much about them. I'd like to read a good review

Kicker amps are nice. I, however, would stay away from Hifonics amps. (They don't have much of a good rep around here.) Have you looked into Sundown for your amplifier needs? Also, do you have your heart set on Fi?

Just out of curiosity, Tony, what was your final verdict on the TLine you build with those Goldwood drivers?

Most of us use 3/4" MDF do to availability. If you have access to 1", by all means, use that!

Man, that's got to be exciting to have it almost done. 1.5 years about, right? Anyways, awesome as usual. Your hard work is an inspiration to us all.

You're using 1" thick MDF?

Nope to adding it or the effects of it?

All that is going to depend on how much power he is running. If he is running the Q's off 300w a piece he won't need to upgrade his electrical. (most likely)

In comparison to....?

Are you looking for a tuning calculator? If not, I suggest a pencil and paper. After I get the rough draft done on paper, I fire up Google Sketch Up (Which is VERY easy to learn) and play around in there. It will give you dimensions in there, and you know it's accurate (assuming your math is). As far as tuning, RobClay has your answer.

Just out of curiosity, why is that important to you?

Yeah...BUT that means I have 2 of the woofers to do what I please with now >:]. I don't know to do with them yet though...

Thanks for the input Samuel. That's a nice looking setup you have there. I did end up getting this canceled, he decided to go with a HTIB instead. Boo.

A sealed box will have a good response, but what type of music are you listening?

So, in a vehicle, would a sound absorber be something like Luxury Liner?

Goals? Budget? Type of music? EDIT: Amp(s)?