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373 posts

Ultimate Geek

  # 2310207 3-Sep-2019 17:40
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Thanks for the feedback guys, and appreciate the offer @labs23, I will keep that in mind. The isobaric design looks pretty cool, I had heard/seen a few push/pull designs on my travels; might be an area for future experimentation.


I would have gone down the Mini-Marty route, since the design seems pretty straight forward, but needing an 18" driver, which I estimate would be around $600-800 landed here, plus explaining away the giant boxes in the living room, makes it a non-starter at this time. Maybe at the next house!


I was only going with the 15" over the 12" due to the fact it is only $20 USD more from Parts Express + $28 NZD more in shipping according to YouShop ($95 vs $123). And then get another one in future as funds allow. But reading some of the specs on the 12", I see I will probably need to go to a much bigger box than WAF will allow to make use of the 15", so as you guys have said, I can probably just go for a 12" ported design. According to PE's modelling/recommendations, it looks like a 5.58 cu ft box vented box with a slot/port tuned to 20hz is good for output into the teens.


Also @labs23, did you just buy some MDF sheets and cut it out yourself? I was thinking of trying to get them CNC cut, but doesn't seem to be a whole lot of outfits down here that do them.


I was thinking of getting some vinyl wrap and having a go at that first, and then if that fails, paint it black haha.


Really if I can get the driver landed here for $400 NZD, build a box for less than $200, and amp for $800 (which will be good for a 2 of them), then I'd be hitting around about 2 of them for the price of one PB2000 with equivalent specs (as long as I don't shank it up).

4182 posts

Uber Geek


  # 2310236 3-Sep-2019 18:35
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I’ll be most interested in hearing your creation once you’ve built it! I could even bring around my PB2000 if you were interested in comparing the two, given it seems to be your point of comparison.


31 posts


  # 2310264 3-Sep-2019 20:15
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I don't like isobaric, I'm conventional when it comes to design but I had a chance to listen from a piggy-back isobarics (2x12s). They look very good while mechanically thumping on the beats.


Yes, purchased a couple 3/4 inch(double check with your callipers as they rarely are precisely 3/4) sheet and cut them myself (3/4inch - ). They were cut accurately as I can get them. CNC would be very helpful, just have to iron out all the measurements beforehand.


Afaik, there are mdf sheets that comes veneered already, 1 side or both(like those used in sink cabinets for waterproofing); might be worth considering. 


Goodluck on your build, I too am planning on a couple Dayton 15's when I vacation to my home country.

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