Need Tower project ideas/help...

[j3bus2k3 5,000+ posts]

The dayton 6 fits the bill perfectly. I couldnt care too much about the size of the box, maybe 9" wide and however tall and deep.

 

[brandontw 10+ year member]

this thread got me thinking about building some new speaks for my room, scince my line arrays wont fit.

some simple two way bookshelves would be nice, but i want alot of low end out of them scince i wont have a sub, i was thinking:

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=295-366

or

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=296-616

and

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=275-085

i have never tried ribbon/planar tweets in one of my project, so it sounds cool.

 

[joetama 5,000+ posts]

So, after plotting them it looks like they would be great in an .5 or .6 cube box with a 2" round port (Parts Express) tuned at 45 Hz (5.5 inch long port) would be about perfect for the best low end responce.

High end crossover at 2.5kHz with a 3rd order 18db/oct.

Low end crossover at 2.5kHz with a 2nd order 12db/oct with a Zobel Network added on (a must because it has a large impedance rise at 75 Hz according to modeling).

 

[j3bus2k3 5,000+ posts]

Whats required part-wise for those cross-overs? And a diagram would be super! lol. Where should I think about putting the sub's crossover at?

 

[joetama 5,000+ posts]

Oh come on man you can do this can't you.... LOL, just kidding... I want credit for this lol.... Give me a little bit.....

 

[joetama 5,000+ posts]

Here is a simple cross-over with small zobel network included.

 

[joetama 5,000+ posts]

BTW you need to round the values there....

 

[j3bus2k3 5,000+ posts]

Round the values on the x-over diagram, correct? I'ma hit up PE tomorrow for a full out quote for this bishes. LOL, dont worry about props, you'll get an honorable mention or two in the thread I make when I start these //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif and ygpm good sir.

 

[joetama 5,000+ posts]

Good luck and have fun!!! If you have any more qustions let me know!

 

[j3bus2k3 5,000+ posts]

Yea one last one, port length was 5.5". How do I incorporate the flare into that? I remember seeing inanother thread that you use like 1.5" of the flare as port length. so thats 3" just in the flared part so would I only need to cut a 2.5" piece and stick all 3 together? lol, thanks again.

 

[joetama 5,000+ posts]

If you use the Precision Sound Ports from Parts Express then you can use this handy little calculator

.6 cuft box tunned to 45 Hz with a 2" flaired round port.

5.51" strait tube with ends then attached making the total length 6.51". Different people believe different things for tubes and it depends on the tube and end flage a lot. I would just do what the company says who builds the tubes, they know more about it than I do.....

http://www.psp-inc.com/

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=268-348

 

[j3bus2k3 5,000+ posts]

and they need to be at least a diameters distance from every wall correct?