Buck Box Designs - Refreshed Thread


ExtremeODD

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2 Sundown Ev4 12's series 6th order bandpass going in a fairly large van. I did a series 6th just to help overall loudness. This van has a ton of airspace, and we're trying to get all the loudness out of these 500 watt rms woofers. A pair of higher powered 12's may make it into this box at some point down the road.

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This was a challenge to build using nothing but a 1950s shopsmith table saw with birch 3/4 ply, totally roasted the 144t blade I bought for the build. Despite the flimsy sawblade doing it's best to prevent a straight cut, I got her done (waiting on payday to get some router bits that can handle chopping through some 18g brads) and after hearing those e12 v4 d4s wired to 1 ohm on an sfb-2000 slam I had to immediately slam the buy now button on a sa-12 v2 d4 package. Now I'll finally be forced to finish up the big three on the astro as with just the e3s and the sfb2k, my denali 200a alt set to 15.2v drops to around 12v with the ammeter maxed at 100 (or rather the FFF it shows).
 
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Buck

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This was a challenge to build using nothing but a 1950s shopsmith table saw with birch 3/4 ply, totally roasted the 144t blade I bought for the build. Despite the flimsy sawblade doing it's best to prevent a straight cut, I got her done (waiting on payday to get some router bits that can handle chopping through some 18g brads) and after hearing those e12 v4 d4s wired to 1 ohm on an sfb-2000 slam I had to immediately slam the buy now button on a sa-12 v2 d4 package. Now I'll finally be forced to finish up the big three on the astro as with just the e3s and the sfb2k, my denali 200a alt set to 15.2v drops to around 12v with the ammeter maxed at 100 (or rather the FFF it shows).
Glad you got it built. It was quite an involved box. A lot of pieces and those flared ports can be difficult, especially a center one.

Get this amp if you have the 1000w Sa-12's: https://soundqubed.com/product/q1-2200-2-monoblock-amplifier/

It'll almost certainly play music better than that SFB and the price isn't that bad. I really hope you trust me on this amp recommendation. I can totally explain technically why I recommend this amp over the SFB.
 

Buck

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Got some build pics of this one. The person who built this did a really good job, IMO. I did not give the easiest port design here. Owner said it sounds really good. Right now, this Skar VXF is my favorite skar woofer. It's probably an overall better daily woofer than a ZVX (which is also 1500w rms).

I think he's going to maybe stain it or something, and that hasn't been done yet. I'm just impressed with how this turned out. This box was totally an OCD-took-over design from me, so I'm really glad it turned out well.

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Junket0420

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Got some build pics of this one. The person who built this did a really good job, IMO. I did not give the easiest port design here. Owner said it sounds really good. Right now, this Skar VXF is my favorite skar woofer. It's probably an overall better daily woofer than a ZVX (which is also 1500w rms).

I think he's going to maybe stain it or something, and that hasn't been done yet. I'm just impressed with how this turned out. This box was totally an OCD-took-over design from me, so I'm really glad it turned out well.

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I made several mistakes during the building process (nothing I couldn’t fix) but tried to be as precise as possible. My past wood working experience has been a 3x6 ft workbench and a table saw stand (both done recently) and that’s it lol. Always wanted to do wood work though. Anyhow the plans and deaign are what made this enclosure possible. I love the creativeness of the port. It was the toughest part, easily taking over a 3rd of the time spent on this. Wanted it to be perfect and give Buck’s design the do diligence it deserved.

obviously the sub will take a few months to break in come into its own but the sound produced with this box is so much cleaner, smooth, body shaking, and oddly enough a warmth to the sound.
 
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Buck

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obviously the sub will take a few months to break in come into its own but the sound produced with this box is so much cleaner, smooth, body shaking, and oddly enough a warmth to the sound.
I feel like I know what you mean. There's definitely a certain effect I aim for with designs for music. I can explain it, but it's really an effect to be experienced. There's a feeling to it. A big part of that is the tuning and port area. Thanks for letting me design it! I enjoyed doing that design.
 

Boominburban

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I'll have the Burban gutted end of Dec. Then we will chat more ....
 

Junket0420

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I feel like I know what you mean. There's definitely a certain effect I aim for with designs for music. I can explain it, but it's really an effect to be experienced. There's a feeling to it. A big part of that is the tuning and port area. Thanks for letting me design it! I enjoyed doing that design.
The word i was really trying to think of was it has a “richness”to it.
 
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Buck

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2 Kicker L7 15's 4th order bandpass blowthrough going in the bed of a full size pickup truck.

This is a big box. The L7 15's are about -20 in^2 of Sd from being round 18's. They're more akin to round 18's than round 15's.

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Bobbytwonames

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The L7 15" is just about the same as a 17" round subwoofer. 225 for the L7 compared to around 226 for a round 17" sub.
 

deez283

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If you ever want to expand your audio knowledge, look up what "acoustic coupling" means.
It's been awhile since I heard anyone mention "acoustic coupling" IIrc this is when you run say a pair of subs very close together?
 

Buck

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What subs will find a home in this?
IIRC it's two Skar DDX 10's. I designed the box and the window hole, and my builder built the box and did the glass. He's still gotta do all of the finishing touches on it. I think it's outside for maybe paint or stain.

This is the glass going in it:

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