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"Overdrive 10" a PR-bandpass sub...
"Overdrive 10" a PR-bandpass sub...
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Old 20th August 2018, 04:57 PM   #11
stormfrontier is offline stormfrontier  United States
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Very interested in building this sub. The one part about the construction that I’d change is a solid baffle on top, instead of having the 4 tangential corners glued into the walls. I’ll most likely model this whole thing and draw it up on CAD. I can send you the PDF when I’m done with it, if you’d like.
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Old 20th August 2018, 07:17 PM   #12
wolf_teeth is offline wolf_teeth  United States
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As long as the front chamber is 4" deep, and the sealed chamber is 7.75" deep, and the inside height and width are both 11.25", then it should perform as mine does.

I'm assuming the PR mount is what you are referring to. Just make the sides/top/btm 3/4" less long, and you'll be good to do as you are thinking. In the construction, it was easier to have all 4 boards the same size, so that is why I built it like I did; fewer cuts.
However- I will be applying hardboard to the surfaces to improve the looks aspect before I finish it.

Sure- keep me in the loop!
Wolf
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Old 29th August 2018, 05:51 PM   #13
gabkw is offline gabkw  United States
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Default Woofers on sale today

The woofer for this is on sale for $150 but only today (8-29-18)
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Old 29th August 2018, 09:07 PM   #14
wolf_teeth is offline wolf_teeth  United States
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Thanks for the bump! (pun intended!)

Wolf
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Old 26th September 2018, 09:54 AM   #15
wolf_teeth is offline wolf_teeth  United States
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I will have this sub for demo this coming weekend at the Meniscus event in Grand Rapids on Saturday at the Holiday Inn South location:
Holiday Inn South, Grand Rapids - Huron Room. 6569 Clay Ave SW, Grand Rapids, MI 49548

...in case anyone wants to see and hear it.

Later,
Wolf
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Old 17th April 2019, 09:02 AM   #16
pelanj is offline pelanj  Czech Republic
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Hi Wolf, I have two questions to this design:
1. what software did you use for the model?
2. the added PR mass is some kind of weight, that comes with the PR + some washers and nuts that are used to mount the weight?

Thanks!
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Old 17th April 2019, 10:56 AM   #17
wolf_teeth is offline wolf_teeth  United States
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I used Unibox, an Excel based simulator. You have to finagle the separate sections to do what you want to model this, but it can be done.

Jurgen Micka's page will do it too:
Advanced Speaker Box Calculator

Yes. The PR comes with washers/slugs that are a certain mass. I measured the mass to be sure of it. I then added 3x 1.5" diameter fender washers, and the lock-wingnut, and that tuned as required. I didn't use a second included slug, as that as too much mass added. The lock-wingnut I bought separately for a more secure/tight assembly, and the washers are also from the local hardware.

Of note- if you build this, be sure to check post #6 in this thread, as the initial depth of the box was not labeled correctly.

Let me know if you have any more questions,
Wolf
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Old 26th April 2019, 06:14 PM   #18
stormfrontier is offline stormfrontier  United States
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I was getting ready to buy the drivers for this, and found that the PR is out of stock everywhere.
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Old 27th April 2019, 05:04 AM   #19
wolf_teeth is offline wolf_teeth  United States
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It has a next arrival date of 6/6/19 at PE.
It won't be that long of a wait.

Later,
Wolf
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Old 15th May 2019, 08:18 PM   #20
stormfrontier is offline stormfrontier  United States
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Any chance you know what the total mass was that you added to the PR? Looking at the pictures on Parts-Express, it looks like it just comes with fender washers.
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