Some Shiva X designs - AVS Forum
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post #1 of 22 Old 04-21-2008, 01:56 AM - Thread Starter
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I did some designs for Kevin's Shiva X, hope you enjoy.

Some of these can be used for other 12" drivers if you want, but the mounting info and designs were done for the Shiva, you need to model other drivers to see if they work.
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post #2 of 22 Old 04-21-2008, 01:56 AM - Thread Starter
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Start off with the sealed ones









And a bigger sealed one









These are just the teasers, Kevin will have them on his site with full documentation pdf's and the actual sketchup files for download as well as cut sheets that work for ply and mdf
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post #3 of 22 Old 04-21-2008, 01:57 AM - Thread Starter
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Small ported designs...

Front Port




Rear Port


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post #4 of 22 Old 04-21-2008, 01:57 AM - Thread Starter
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Large Ported Designs



Front Port



Rear Port




Like I said, there are finished cut sheets for all these, also, keep your eyes peeled for much much more!
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post #5 of 22 Old 04-21-2008, 04:31 AM
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Sweet!! Thanks!

based on comparison with the recommended enclosures from exodus on the acoustic visions site, that small ported is an awesome box...17hz tune, on 500w you're getting 113db @ 20hz! in room, of course...but it models great, 3-4db down @ 17hz.
http://www.acoustic-visions.com/~aco...x/shivaapp.pdf

looking forward those cut sheets!

I'm thinking LT/550 just to keep costs down, what do you think army?
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post #6 of 22 Old 04-22-2008, 06:31 PM
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OK i got bored.





a little crude...and i couldn't get sketchup to render that port correctly on the front... anyway, that should be about 4.3ft^3 after bracing, etc.
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post #7 of 22 Old 04-22-2008, 07:56 PM - Thread Starter
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Good work, keep practicing, watch those tutorials and you'll get the hang of it.
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post #8 of 22 Old 04-23-2008, 04:04 PM
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Nice work on those cut lists. Don't forget to factor in the width of the saw blade when cutting.
Drawing port flares in sketchup tutorial
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post #9 of 22 Old 04-23-2008, 05:43 PM
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With your testing what wattage does these drivers comfortably like and what is the largest you'd push them with? When modeling the sealed designs it seems like the sub reaches max excursion around 500 watts or so, but would you drive them with more?
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post #10 of 22 Old 04-23-2008, 06:50 PM
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Quote:
Originally Posted by Collo View Post

Nice work on those cut lists. Don't forget to factor in the width of the saw blade when cutting.
Drawing port flares in sketchup tutorial

Thanks! i thought about blade width at one point, but i figured since i wasn't really squeezing every cut i could out of the sheet i could slide by without that consideration for this one.


erm, i mean....you don't cut your MDF with a laser?!

And thanks a ton for the link!


ba123, 500w is good. You can always give them more, as long as your careful... but Pmax for the shiva is 600w.
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post #11 of 22 Old 12-06-2008, 06:46 PM
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Has anyone built any of these subs?

I would like to build the 4.3 ported box. Any help?

Later
JimC
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post #12 of 22 Old 12-06-2008, 09:04 PM
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i got one in 3.3 sealed on 500 watts and its great for music, gaming, and most of the movies out there.

Nearfield rig: Laptop -> JDS Labs ODAC -> Emotiva Mini-X -> Pioneer SP-BS22-LR & SW8-mk2Headphone rig: laptop -> JDS Labs ODAC -> Emotiva Mini-X speaker taps -> modded AKG Q701H.T.: PS3 - Yamaha RX-V2500 - Infinity Alpha 50's - Alpha center - Harmon Kardon HKB6 rears, Epik SentinelMy last.fm profile
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post #13 of 22 Old 03-17-2009, 08:33 PM
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subscribing.

chasing rattles ......

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post #14 of 22 Old 03-24-2009, 10:49 AM
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it was mentioned there are cut lists for these, where might those be?
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post #15 of 22 Old 03-24-2009, 10:57 AM
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Quote:
Originally Posted by armystud0911 View Post

Large Ported Designs

Like I said, there are finished cut sheets for all these, also, keep your eyes peeled for much much more!

Where are these cut sheets? Thanks,

Regards,
Dev

Dev
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post #16 of 22 Old 03-24-2009, 12:12 PM
 
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Quote:
Originally Posted by dev_81 View Post

Where are these cut sheets? Thanks,

Regards,
Dev

I sent you an email with the design and cut list for the 20" x 27" x 27".
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post #17 of 22 Old 03-25-2009, 10:42 AM
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here is 6.35 cu ft. slot port design tuned to 18Hz



and the cut sheet. ***You must purchase a cutsheet that measures .75X49X97. i found them at lowes in my area. ***

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post #18 of 22 Old 03-25-2009, 11:54 AM
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Perfect, now all i need to know is if the shiva-x will work ok with the NHT SA-2 amp i have currently.

as a side note, did you avoid doubling up the baffle to keep it to one sheet of MDF?
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post #19 of 22 Old 03-25-2009, 04:42 PM
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yeah, i had asked at another forum and they stated only one sheet of mdf would be sufficient. and yes, it helped keep me to one sheet of mdf

as far as the amp, i don't know. i went with the parts express 500W plate amp. something about a sub-sonic filter being needed or used or something. i am not sure of the exact details of this, but if you ask i am sure someone can help out.
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post #20 of 22 Old 03-26-2009, 08:08 AM
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Quote:
Originally Posted by mlkmgr View Post

here is 6.35 cu ft. slot port design tuned to 18Hz



and the cut sheet. ***You must purchase a cutsheet that measures .75X49X97. i found them at lowes in my area. ***


Is the above slot port design better then Large Ported Designs (with two flared ports) in terms of sound quality for music and HT? I mean which one is better? What are pros and corns?

Thanks,
Dev

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post #21 of 22 Old 03-26-2009, 04:14 PM
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i couldn't tell you which is better, but by having the slot port, you don't have to purchase the additional ports or cut pvc pipe to the correct length.

for me, the advantage was cost. if you look at the shiva pdf's on the diy website, you see they use 2 "precision ports" at a cost of $19 each. factor in the additional shipping cost and you are looking at close to an additional $50 for your build.
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post #22 of 22 Old 03-26-2009, 07:55 PM
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Quote:
Originally Posted by mlkmgr View Post

i couldn't tell you which is better, but by having the slot port, you don't have to purchase the additional ports or cut pvc pipe to the correct length.

for me, the advantage was cost. if you look at the shiva pdf's on the diy website, you see they use 2 "precision ports" at a cost of $19 each. factor in the additional shipping cost and you are looking at close to an additional $50 for your build.

Thanks, so I think slot port design looks easy to construct, compare to flare ported. i will go with slot ported sub.

Which of the below amps I should go with for above slot port design & why:-
1) http://www.parts-express.com/pe/psho...number=300-752
2) http://www.parts-express.com/pe/show...number=300-806

Regards,
Dev

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