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Old 30th March 2015, 08:51 PM   #1
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Default DIY subwoofer build 18" Dayton ?

Hello forum......I have been contemplating this for a while. I have read a lot of the threads here on the forum.
I would really like to build an 18" inch sub. PE has a pretty good kit....cabinet, Dayton driver and a plate amp.......are these kits any good for a beginner like me?
Dayton Ultimax 18" driver / knock-down cabinet / 1000watt plate amp.

Any info or suggestions would be awesome.

I would prefer sealed cabinet tuned to around 20hz..........
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Old 31st March 2015, 02:38 AM   #2
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Link?

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Old 31st March 2015, 03:05 AM   #3
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Originally Posted by anderslober View Post
I would prefer sealed cabinet tuned to around 20hz..........
This will require ~223 ft^3............

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Old 31st March 2015, 04:20 AM   #4
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Gulp! What kind of response would you get from the available sealed cabinet? Has anyone here on the forum actually made one? Please report.......thanks.
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Old 31st March 2015, 04:22 AM   #5
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Location: Mar del Plata, a BIG seasonal getaway city, can see the Ocean from our residence.
Running the numbers thru the SIM, I get a sealed at 272 Liters worth.
For a cabinet of .816M by .647M by .514M in size, Qtc of .707, -3 Db @ 26.04 Hrtz.

Going ported gets wicked, a cabinet of 521 Liters (1.014M by .805M by .638M)
A big ol' 200mm Diameter port, 669mm long, for an Earth shaking -3.05 Db @ 13.04 Hrtz.


----------------------------------------------------------Rick..........
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Old 31st March 2015, 04:24 AM   #6
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Pretty sure he meant he would like a sealed box with in room extension to 20 hz. That's what I would assume anyway, he is a self proclaimed beginner and probably doesn't know the lingo yet.

The kit is probably fine, the parts are decent so you could definitely do worse. As long as the price is right and it's what you want it should be fine. Personally I'd skip the knock down box if it's more expensive than the price of raw wood. Home Depot will cut any wood you buy into dimensioned panels and you can get a jigsaw for $15 or a router for $40 and then you have a new tool too.

DIYSOUNDGROUP also has kits but they only cater to the US crowd.
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Old 31st March 2015, 04:24 AM   #7
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Kind of hard to answer without knowing the details of the kit.........

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Old 31st March 2015, 04:31 AM   #8
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Originally Posted by GM View Post
Kind of hard to answer without knowing the details of the kit.........

GM
I'm guessing it's this kit - Dayton Audio 18" Ultimax Subwoofer and Cabinet Package - with this amp - Dayton Audio SPA1000 1000W Subwoofer Plate Amplifier - but I don't see it all as a complete kit.

So 18 inch Ultimax in 4 cu ft sealed with the Dayton 1000 watt plate amp.
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Old 31st March 2015, 04:38 AM   #9
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Originally Posted by Richard Ellis View Post
Running the numbers thru the SIM, I get a sealed at 272 Liters worth.

Going ported gets wicked, a cabinet of 521 Liters
What program are you using? The new WinISD 0.7.0.9 calcs 453 L for a 0.707 Qtc.

For vented, 396 L/14 Hz works for me, but the vent is so large, long, it needs to be built as an inverse tapered TL [TQWT].

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Old 31st March 2015, 04:40 AM   #10
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Richard....where do I find 'the SIM'?
Just out of interest....could you port the available cabinet? Then it would go a bit lower, I guess.......
I already have a Jamo d600 sub....which performs quite admirably(even on music!).....I was just wondering about adding a bit more 'performance'.........,,
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