Sencheezy

I am a proud owner and representer off SSA line of subwoofers. I have owned the Icon and currently the Zcon, and have installed a pair of Dcons. All three sound great, the Icon being my favorite at the moment. The problem that I am encountering right now is the stress noise I am hearing on lower notes at higher volume. This first became apparent on the install of a local Dcon's. Where we began testing and preparing initial gain setting. His setup consisted of 2 12' Dcons on a single AP1500 in a sealed enclosure for his maxima. This "scratching" noise was only noticable in a subwoofer at higher volume on lower notes for only ONE subwoofer, while the other showed no signs off stress. Yes, I am well aware of the amp providing more power than rated, this is not what I am concerned with, the problem relies in only ONE subwoofer, so for only one to show signs of ware, seems strange. That box was built to specs. He then tried moving to another enclosure that Sean DeYoung was nice enough to sell us. It was ported and as well built to specs. The problem still seemed to be apparent in the exact same subwoofer. I didn't know what to tell him as it was strange to me to see how only one could be effected and not the other. On to my setup. I have a build log, that some members have seen or taked a look at one way or another. I have only built one enclosure for this Zcon, and am powering it with an AQ1200, so I'm providing half the power as rated. But the enclosure is a bit on the large size, in the lower 6cuft range. Which was done intentionally to try and compensate for the lack of power. My subwoofer is too making the exact same noise. This noise sounds like coil rub. I first began to think, well maybe its the enclosure being too large, which in result, could cause the subwoofer to lose control of the cone or something, I'm not exactly sure. But once I noticed my local 'ssetup making the same noise in two different enclosure, I'm beginning to think that this may be an driver issue. Either subwoofers are NOT blown. His Dcon was BNIB, my Zcon was a hammy down, but from members here that I have no reason not to trust. IIRC, Ricksi was the original owner > Edouble > Me. So the likely hood of being mis treated or mis used is rather unlikely. Troubleshooting steps that have been taken. His setup, D4 subs wired to one ohm on AP1500. Wiring was tripled checked about 2 times by me. Initialy wired by a local shop. In new ported enclosure, wiring was down by a seperate local audio shop. Coils read fine. Softly push down on top of cap to listen for any abnormal noises My setup, D2 sub wired to one ohm on AQ1200 Wiring has been checked multiple times over and over. Ports have been changed in the range of 32hz to 45hz. Box positioning have been changed. Have attempted different enclosure, the enclosure for the Icon by audible sounded worse (4cuft,34hz,very low port area), and the comp enclosure built by shizzzon wouldn't allow enough port(5cuft) Softly push down on top of cap to listen for any abnormal noises I have asked the local member here, owner of the Dcons to email Support, and here is one of the responses. "> > On Feb 2, 2012, at 10:47 PM, "Aaron H. Clinton" > > <[email protected]> wrote: > > > >> Hello Caleb, > >> > >> Please show how you are wiring them up please? Each SSA driver is > >> tested before shipping, so it would not be defective. Also, that > >> is way too much power for a pair of Dcon’s, please make sure you > >> have your gains backed down. > >> > >> Thanks, > >> Aaron H. Clinton > >> VP - SSAudio Inc. > >> http://www.ssaudio.com > >> > >> [email protected] > >> [email protected] " Now, understand, I love SSA, but stating that each driver is tested prior to shipping, and not being able to be defective, is not to sound mean, but a bit "cocky" statement as no production of any item will have an 100% success rate, too many variables and possiblities of things to happen. Maybe there was an shipping issue, being mishandled by UPS, not sure. So my main question here is what could cause this problem with lower notes at higher volume? I don't really care for whom is at fault, I would be more satisified if this issue could be resolved without the need to purchase a recone out of our pockets as it seems we have had no influence in what appears to be a malfunction of the driver. How do we prevent this kind of incident from happening again? But again, I'm no subwoofer designer or have any idea what could be the issue and what exactly is causing, I am simply looking for an answer. In advance, thank you for your help.

For box recommendation, I would suggest creating a seperate thread in the enclosure section sir.

<p style="text-align: center">I it!!</p>

here are the Dcons installed into a local buddy's ride Early box design by Swift And amp rack, I'm digging the first one Really great guy. Maybe I will finally have some proper music going, this thing was already banging before, can't wait till new enclosure!

NO!!!!!! Whatever you do.. do NOT start from scratch or we'll be right back where we were! The scratch is GONE! For the love of God.. if you get a new enclosure, start from linear excursion!, never from scratch! sean Sounds great! sounds good!! cant wait to see this new box... senchez u better post pics I'm on it!

Few changes were made to the sub, new spider pack + flat wound. From your behalf or SSA?

Adrian get down from there!

Yeah, testing goes a long way and can be the longest process actually, is something I've learned by going to recent comps. If nobody else does I believe in you Steve, keep it up

Looks realy good though. I'm sure with ALL that extra space you have, you can fit 4 15s in there, even if space was an issue, running 10k would help.

NOT FAIR!!!! Why you haz Yellow and I haz NO Yellow!! I want YELLOWWW!!

Just remember quality and custom costs monies... He is a great guy to work with... Yep, they arent cheap compared to some $10 rca cables. Approx $30 in supplies for a 25' set. Thanks for the kind words! I don't have the skills nor the tools to do such an amazing job. I would need 3 15" long cables. So thats about 60$ or so? I would be seriously interested in paying you for this. I feel ashamed to pair up 10$ RCAs with my ZED, although I'm well aware that there is no real audible difference in 10$ RCAs vs 100$ RCAs.

I haz no sand on my clam? But you have a clam? I'm tuned to 38 with 5.x per 18 and I have bottom end.... even when the drivers are still stiff... Key word: lose. :werd:

Me either... Damn 8 cube box!.. downned the size = more mech handling. haha, for sure man. Well tell that Zcon to hurry its ass up and get to your house! :PRONTO:

Nice job steve, I'm sure once your able to hold a 14v and add that other 5k you will have the numbers your chasing.

I don't want to see anymore recones out of you sir!

Great idea, I think I'm gonna start from scratch, this box is not the prettiest, although it is very strong. I have recently began the process of joining a local car club, one of those really spiffy shiny ones lol (Project Mayem out of Nashville) so, a more appealing enclosure is to be obtained. I will simply need to build a seperate enclosure for comps, as I've noticed that maybe I am asking too much out of an enclosure to play double duty. Although my ports are easily interchangable, other factors that play a vital role in SPL are not. Such as internal volume, box placement, etc. This is something that Shizzzon has taught me so I feel its best to not try and force one enclosure to achieve my goals.

This seems to be the issue. I believe this hit it right on the nose and I thank you for your input. I would also like to thank everyone who actually gave me suggestions on how to approach this problem. Today, I placed my subwoofer inside another enclosure that belongs to a local member, swift. And all seems fine, the subwoofer showed no signs of stress and sounded great. So the conclusion to this is that, in MY application, I could NOT use a larger enclosure. Swift will begin building my next enclosure soon. WONDERFUL news. I can relax now. In a way this topic is nice in the fact that some people can see that many car audio aimed sub woofers have a happy range in which their enclosures should be and the power they should get. Example, Dcon's like smaller boxes on modest power, where as Xcon's like bigger boxes on bigger power. All relative to the sub woofer and the environment it is in. Sorry about that Aaron As stated before, I was simply asking for advice, which I recieved to try and help me. In the end, I learned how much of an role that enclosures have on subwoofers.

This seems to be the issue. I believe this hit it right on the nose and I thank you for your input. I would also like to thank everyone who actually gave me suggestions on how to approach this problem. Today, I placed my subwoofer inside another enclosure that belongs to a local member, swift. And all seems fine, the subwoofer showed no signs of stress and sounded great. So the conclusion to this is that, in MY application, I could NOT use a larger enclosure. Swift will begin building my next enclosure soon. This seems to be the issue. I believe this hit it right on the nose and I thank you for your input. I would also like to thank everyone who actually gave me suggestions on how to approach this problem. Today, I placed my subwoofer inside another enclosure that belongs to a local member, swift. And all seems fine, the subwoofer showed no signs of stress and sounded great. So the conclusion to this is that, in MY application, I could NOT use a larger enclosure. Swift will begin building my next enclosure soon. Good find, I learned something new today myself about enclosures. Glad you got it worked out. Thanks, yes, I have learned how important of a role the enclosure plays. I hope to have a much better results now. Just to clear everything up, I have ALWAYS stand behind SSA and this fault is MY doing and I do apologize for any confusion. The subwoofer is in 100% working condition. The flex in your truck had me like glad to hear you have your issue ironed out.. now let's hope there is not damage... Was the scrapping/scratching noise present at all Sen? No, the scratching noise completely went away. I played a few songs off my ipod that I am familiar, one paticular song my T.I. that drops extremely low and all you could see was wonderful sub porn

I haz no sand on my clam?

:yes: :omg:

Love the progress and pics! Keep em coming and don't get sick again

Really Really need pics.

Awesome job Mark! So what did it meter? I see the picture of the screen but its reading 00 Was also interested in knowing hows the voltage with 3 D3100s handling 4krms.