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NEW SUB FROM PARTS EXPRESS DAYTON 18 HO" - Page 4

post #91 of 103
Quote:
Originally Posted by ack_bk View Post

There are some new inexpensive USB mics that really make it (REW) easier to use. One from PE and one from Minidsp. It is pretty much plug and play:

http://www.parts-express.com/pe/showdetl.cfm?partnumber=390-808
http://www.minidsp.com/products/acoustic-measurement/umik-1

I am not sure if you read through Gorilla83 thread on dual opposed boxes using the Dayton 18 HO's but it is a good thread to read through and should give you some good ideas.

And my Dayton Audio UMM-6 mic will be here tomorrow. cool.gif
post #92 of 103
Quote:
Originally Posted by nograveconcern View Post

And my Dayton Audio UMM-6 mic will be here tomorrow. cool.gif

Very cool. Am interested in your feedback on it.
post #93 of 103
What size sealed cab looks optimal for a single 18 on only 500 watts?
post #94 of 103
Quote:
Originally Posted by fish323 View Post

What size sealed cab looks optimal for a single 18 on only 500 watts?
With only 500w you want to lean towards the larger cabs to pick up some efficiency down low. I would go for 4cf or more.
But, keep in mind that it takes large changes in enclosure to significantly affect FR. 1/2 a cubic foot is negligible.
Edited by jpmst3 - 2/16/13 at 7:35am
post #95 of 103
It seems like 4 cf is the size people are going with when using around 1k watts per driver. How much larger are you talking to reach a different frequency response with 500 watts?
post #96 of 103
fish, 6 cu ft looks good with 500w. I don't think I would go larger. Stuffing with poly fill will help some too.

4cu ft. looks good with 700+.
Edited by nograveconcern - 2/21/13 at 6:17am
post #97 of 103
Quote:
Originally Posted by nograveconcern View Post

fish, 6 cu ft looks good with 500w. I don't think I would go larger. Stuffing with poly fill will help some too.

4cu ft. looks good with 700+.

Thank you kind sir. smile.gif
post #98 of 103
Am in the process of building mine right now. It will be around 4.0 cubic feet.

Exterior dimensions are going to be 20.75" wide, 27" high, and 19" deep. The driver is recessed 0.75". Nearly done but I am thinking I might do some additional bracing.

With only 75 watts to it (half of my emotiva amp) it got pretty loud in my basement. Doesn't soon particularly good running full-range, however.






Edited by djkest - 2/22/13 at 11:09am
post #99 of 103
Looking good.
post #100 of 103
Those of you who have mounted these, did you use any type of gasket? I have a 1.5" baffle with a .75" recess.
post #101 of 103
Depends on the mounting surface. If coating with Duratex I'd use a gasket. Mine are mounted directly over a primered base with no gasket and no issues.
post #102 of 103
Thanks. Reason I ask is it seems like it already has a gasket of sorts on it from the factory
post #103 of 103
It's already got some high density foam on the back, it's fine if you are mounting it to a relatively smooth surface. smile.gif

I will be using the factory gasket on mine.
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