Spare subwoofer... Kinda want to build a Sono - Page 4 - AVS Forum
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Old 03-09-2011, 11:13 AM - Thread Starter
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Yeah, it is odd. I was thinking the same thing, but thought it was crazy anything could get past the screen on the magnet. The holes aren't small, so it is possible. It'll leave me keeping the grill on my SVS as they don't have any protection on the pole piece.

I found out just why the foam is put on the top of the sub for the grill. It will make all types of noises without it... More than just minor on test tones.

-Jason

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Old 03-10-2011, 10:17 PM - Thread Starter
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I definitely think something made it down to the voice coil... It appears that it's now moved it's way own to the back side of the dust cap an isn't causing any issues. I am still amazed at the performance of this sono. I didn't even realize how much excursion this driver had in the RW-12d box. When I would turn it up with RW-12d, I would start hearing unwanted noises (port chuffing and creaking). Now it just sounds good... I stuck my head up under to see how much the driver was moving on one of the scenes from Iron Man 2 and I thought it would have bottomed out pushing it that hard with the old setup.

As for the base... I was looking to have eD coat it, but they want $50+ shipping (both ways) to coat it. It's a 16.x" diameter circle that's 1.5" thick, so I don't think I need to spend that amount of money on it. I think I'll give the Dupli-Color truck/bed liner stuff a try.

-Jason

The "Z" Family Theater - Almost "complete".
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Old 03-10-2011, 11:18 PM
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Quote:
Originally Posted by chrapladm View Post

I wonder what it is?

I thought I heard of someone what had a similar problem with a driver and it was metal debris on the inside rattling around. Where exactly I dont remember and I dont know how it happened. It just sounds very similar to that situation.

You may be talking about OklahomaWolf's tapped horn build that he did last year. One of the Tangband woofers he ordered had metal debris rattling around, and I believe he removed it gingerly with tweezers, or something like that.

YamahaSHO, glad to see you came out favorably with this build. It looks quite nice indeed.
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Old 04-18-2011, 09:27 PM - Thread Starter
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I finally got set up with REW today and took some measurements. I did some tests with and without the Anti-Mode. This room is completely untreated (it's not my theater) with lots of bare walls. This is also still using the "blown" sub. It works great for the most part, but the noise comes back every now and again and I have to move the driver around to get it to go away. I'll replace when soon.

No EQ:





Anti-Mode 8033c correction




SPL comparison





I will run the tests again with the SVS and see how they compare.

-Jason

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-Klipsch Sonosub Build

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Old 04-19-2011, 04:23 PM - Thread Starter
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Well, I did some more reading about REW and think I've got it calibrated more correctly this time... I did a comparison with my Klipsch Sono before and after the 8033 EQ as well as the same with the SVS.

Here's what I came up with:

Klipsch Sono vs SVS PC12-NSD w/ NO EQ:



Klipsch Sono vs SVS PC12-NSD w/ Anti-Mode 8033 EQ:



Klipsch Sono before and after 8033:




SVS PC12-NSD before and after 8033:




Klipsch Sono Waterfall w/ NO EQ:



Klipsch Sono Waterfall w/ Anti-Mode 8033 EQ:



SVS PC-12 NSD Waterfall w/ NO EQ:



SVS PC-12 NSD Waterfall w/ Anti-Mode 8033 EQ:


I suppose my Klipsch Sono is doing pretty well and is a farily close match to my SVS.

-Jason

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Old 04-22-2011, 08:50 AM
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Great stuff. I have a question.

I already have a klipsch sub (RW-10) and because of the way my apartment is, I had to put the tv, speakers and sub on the wall that my neighbor lives on. He cries when I have it up alittle, so I try to be nice and keep it down.

Now the question: I have a 10 or 12 inch infinity car sub, enclosure and the amp that i haven't used in 2 years. I'd love to make a sub like what you made for fun....(i'd use it too ) Do you think this is doable? using what I have, and get a tube and the cylinder thing you have. Please let me know....like you, i'm not looking for perfection. I can't turn up my other sub anyway, but I would put it behind my couch.

Seem like such a fun project.....haven't built or designed anything in a loooog time.

Thanks

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Old 04-22-2011, 04:13 PM - Thread Starter
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I don't see any reason why you couldn't do it. Do you know what sub you have? I modeled this one by using parameters from an Infinity Kappa Perfect.

-Jason

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Old 04-22-2011, 09:43 PM - Thread Starter
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After talking with Ed M. at SVS a bit, he recommended to close-mic the sub to get a little more information as well as find the final tuning frequency. It appears my guessing with the sub and the addition of making the port a 1/2" longer than required, I am tuned at 20hz. I'm not sure if I'll leave it or shorten the port to get my 22hz tune...




LL
LL

-Jason

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Old 06-15-2011, 09:06 AM
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Awesome build! I have been thinking of tearing my 12d apart and doing something like this. Just too much mort noise and cabinet is too small. I have two of the pe flared ports and some sono tube in the garage right now. How do you think it would run on the stock rw12d amplification? 350w rms.

Dan
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Old 06-15-2011, 09:43 AM - Thread Starter
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I imagine that the stock amp would do well. I've been using a PE BASH 300w amp and it's been great. The only thing I don't know is the HPF on the stock amp.

If you're thinking about doing it, do it. It will blow the Klipsch configuration away.

-Jason

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Old 06-15-2011, 11:37 AM
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Sweet deal, I'm assuming that you used a single 4" port? Have you noticed any port noise?

Thanks
Dan
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Old 06-15-2011, 12:06 PM - Thread Starter
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Yes, just a single 4" port tuned to 20hz. I have not noticed any port noise... Much different than the RW-12d. That thing sound like it was cavitating itself.

-Jason

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Old 06-15-2011, 12:13 PM
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No kiddin, the other night I was watching a movie and there was a scene with pretty deep bass and the chuffing was so audible, not to mention the plastic making its own special noise. I played the track again to see how much the woofer was moving and it was barely going at all. Quite sad, but quite a bit of output. This will be fun! I wonder where I would be able to find out what the high pass on the amp is...

Dan
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Old 06-16-2011, 02:08 PM
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Hey is there any way you could post the ts parameters you used? I cant seem to find any on the kappa perfect. I'd like to make the cabinet a little bigger, like 115-120 liters so that I can tune low enough with the ports I have. I modeled the stock cabinet in bass box pro and it looks like it has a tuning of a little over 29hz, is that possible they would tune that high. They say a frequency response of 24 but where, down 10 db?

Dan
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Old 06-16-2011, 03:03 PM - Thread Starter
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I used what was already input into WinISD for the Kappa Perfect. I honestly wouldn't tune lower than 20hz and wouldn't go much larger than what I've done. It is a decent woofer, but it's really just okay comprared to what you can buy these days.

I had been talking often with Ed at SVS through the whole build and after I showed him the results, he suggested changing nothing.

-Jason

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Old 06-16-2011, 03:37 PM
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Yeah, i dont want to go any lower than 20, just as close to 22 as possible.

Dan
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Old 06-16-2011, 10:48 PM - Thread Starter
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I was shooting for 22, but I ended up with 20hz. When Ed told me not to mess with it, I left it as is. The stock RW-12d setup sounded like a broken toy after hearing this. My buddy still makes comments about the sound difference. When it plays low, sound actually comes out and the port noise and creaking is non-existant.

-Jason

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Old 01-21-2012, 04:36 PM
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Did I miss in this post? But what was the total outlay of cash for this build? I really like it.

That's wasn't flying... That was falling with style!
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Old 01-21-2012, 05:07 PM - Thread Starter
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Tube (already cut to size) - $15
Wood - $40
Port - $12
Mattress foam - $10
Machined aluminum legs - $50 shipped
Grill - $5
Poly and stain - already had
Velvet - Don't remember, probably $10-$20
Sub - got it free, pick your poisen
Amp - $100

-Jason

The "Z" Family Theater - Almost "complete".
-Not your average sub build
-Klipsch Sonosub Build

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Old 01-23-2012, 10:29 PM
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Quote:
Originally Posted by yamahaSHO View Post

Tube (already cut to size) - $15
Wood - $40
Port - $12
Mattress foam - $10
Machined aluminum legs - $50 shipped
Grill - $5
Poly and stain - already had
Velvet - Don't remember, probably $10-$20
Sub - got it free, pick your poisen
Amp - $100

That's a great price, nicely done.

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Old 01-24-2012, 08:19 AM
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Great job, now I'm seriously considering making one. How thick is the wall of the tube you have? I have used sonotubes for concrete before but the ones I remember were about a quarter inch thick.

Thanks
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Old 01-24-2012, 10:58 AM - Thread Starter
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The tube I used was about a 1/4" as well. My only concern was moisture, so I coated the crap out of the both sides with poly.

-Jason

The "Z" Family Theater - Almost "complete".
-Not your average sub build
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