tommyk90
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Posts posted by tommyk90
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first off ive seen ateams sub in action last show, it is not a prototype it is a fully functioning woofer.
second, i think you are wrong with the cone/former joint a properly machined former adapter (much like TC has used in the past) will prove to be just as strong of a joint as a concave cone joint. if the adapter is machined to slide inside of the former, you get glue joints on the inside of the adapter, outside, inside and outside of the former. also the piece will increase the surface area to which the former is pressing against the flat cone.
but what would i know i havent set 3 organization nationwide records?
i guess that is a prerequisite to knowing it all nowadays.
It's still in the prototype phase since it's not something that is available nor really known to the general public. It appears that they are the first to have an test the sub. That seems like a prototype to me?
And once again, please show me pics of the cone to former joint so everyone can assess the design. If they have developed a stronger method then that's great. Still doesn't take away from the fact that you have less cone area and a weaker overall structure.
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DC FTMFW!!!
im an asshole...
And just like I said, if the cones end up working, then they will have done something that no other company could do. Granted I still don't think the flat cones will be benficial in any way, so all the work is for nothing.
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Its all about the install bud.
And this is coming from a guy ON TEAM KICKER! :01nocomment8so: Wow...
What does being part of team kicker (now defunct) have anything to do with this thread?
Just so you know, I'm the one who built and tested that install with the lvl4's versus the ground pounders. Very basic and should have worked well for the lvl4's. 4 cubes net, four 4" aeroports. The crunches were over 1 dB louder and still live to this day. The lvl4's got beat to hell, suspension sagged, and the dustcaps broke.
I'm looking for REAL evidence to back up what all these people are claiming. Not a bunch of dick riders saying that everything will be ok because they listen to whatever lines a company will feed them.
I've probably done more SPL testing than 95% of this forum, so I feel that I'm allowed to state my opinions.
You don't become a national champion in two completely different competition organizations by listening to what others have to say. You go out there and find out for yourself.
But I will say this. If the A team tests these cones and discovers that they are great, then perhaps I will reconsider my opinion. But even with that consideration, I take a look at who they are. A great team of guys who live and die by DC. Do you really think they would ever say anything bad about DC, even if the product didn't live up to their expectations? I doubt it.
The problem I'm running in to nowadays when trying to get opinions on different companies is a lot of people are extremely biased. These guys are DC. Those guys are T3. Guys overe there are Fi. Who am I supposed to get an unbiased opinion from? All the forums nowadays are full of ass kissers and people looking for a handout/discount, IMO.
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You seem to be jumping to some quick conclusions, i feel the misinformation is being spread by you.
You are correct about the cone shape making it strong, but i will tell you this, the cone we are testing out here although flat has much more strength then a paper cone. After all i am not completely stupid. It wouldnt make much sense to "upgrade" to something not as strong.
This first sub we did the cone on is only for first tests, and not the finished product, not that the former cone connection is ugly. The parts for this will be machined very shortly, and again once we have actual production assemblies made i will be testing them vs paper once again. On that note i have yet to put this to the test, you will have to wait a bit. We will see if we can get a single XL 15 over the 178 mark.
Nut hug that.You know what I'm sick of?
Companies posting pictures of products that aren't out of the prototype phase to generate all kinds of hype.
This should have stayed under wraps until everything was said and done, because in the end if it ends up not working then who is the one with their thumbs up their butts? Certainly not me.
This is almost as bad as the fake T3 TSNS that jd posted everywhere.
But I guess DC got what they wanted. A bunch of people begging for stuff that hasn't even proven itself yet. Excuse me for not buying into the hype and bullsh*t.
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Which would be stronger... chicken eggs or carbon fiber eggs?
So, a paper or plastic concave cone would be just as strong as a carbon fiber concave cone of the same dimensions? Given a stress test, which do you think would win?
Both of these lines are completely beyond the point.
Of course a carbon fiber cone of the same style will be stronger than a paper cone. I'm comparing a flat carbon fiber cone to a concave paper cone, which are not even close to being the same.
Chicken eggs or carbon fiber eggs? Please.
Look at all the loudest vehicles in the world and take a look at what type of cone they use (minus the fact that most of them run DD).
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Show us a DC product that isn't worth respect.
How about a pair of lvl4's getting beat out by a pair of crunch ground pounder 12's?
With more power on the lvl4's.
Go ahead and say what you want, but flat cones haven't been used before for a reason. Joint failures are imminent.
Think of it like this. A coil is pushing against a normal concave cone during excursion. The cone holds up because the outward pressure is held in by the cone structure. A coil pushing against a flat surface does not have the same resistance. There is also significantly less area for the former to join to the cone. On a normal cone the former can be glued from both sides, making the bond super strong. With a flat cone, it can only be adhered to the back side, greatly reducing strength.
Granted that the carbon fiber construction WILL help with this issue, but I see absolutely zero benefits of using a flat carbon fiber cone versus a concave one (i.e. dd composite cones). You still lose overall cone area and a great amount of strength. People who think concave cones cause cancellation are just using that as an excuse to ride DC's nuts.
I stand by what I said. If I'm proven wrong, then so be it. There's a reason that flat cones haven't been used since the eD/PPI era, especially in high SPL applications. They just don't work.
FYI, I still want to see pictures of the cone-to-former bond. I like how thats the one picture that wasn't taken.
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LOL let the hating begin!
You call it hating, I call it design flaws and misinformation.
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speaking of dumps did somebody take one in your wheaties this morning?
Nope, just stating the obvious (for some).
Please prove me wrong?
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Don't you guys remember the old grade school science trick where you stack books on eggs?
Concave is world's stronger than a flat cone. The material isn't what makes the cone strong, it's the shape.
Apparently nobody remembers the eD epic failure. (not to mention a 4" coil with a 12 spoke basket)
I'd like to see some former-to-cone joint pictures, because I'm sure it isn't pretty.
My nut-hugging meter is through the roof in this thread. Rusty could take a dump and stamp a DC logo on it and you guys would be lining up all wanting a wiff.
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I'll be there in S2 and DB2.
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they are seriously in there so tight that it would take the worlds most devastating accident, complete with rollover to make those things jump. Even then im not so sure they would
Even if they did, its only about 1/2" clearance and teh positives have all been covered with some PVC Membrane so they would never spark if for some reason they did jump. They certainly could never jump enough to fall out (even if i rolled my truck). You couldnt get them to fall out anyway, there isnt any room for them too. I didnt "make an exception on playing it safe", if you think about it, they are boxed in and really cant go anywhere. Honestly bro, if i took a jack and placed it on the middle battery (for instance), im pretty sure the truck would go up before the entire rack of batts (connected with bussbar) would move out of position. Im pretty confident its safe or i wouldnt drive with it like that.Thanks man!!
Good to hear. Everything looked pretty tight, just something that I noticed and wasn't sure about. Didn't know about the coating on the positives.
Like I said, I know you don't take shortcuts so I'm sure there was some reasoning behind it.
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he mentioned that due to the weight of the batts, and how tight they were, there was no need to strap them down. and with the cover, amp rack, and big ass boxx on top, I dont they they will leave their little home either
Isn't the cover above them made of metal?
My concern would be hitting a big bump or something and having the batteries "jump" up and contact that metal plate above them.
It's a slim chance because of the weight and the bussbars holding them all together, but meade plays it safe on everything else so I just wondered why he made an exception this time.
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Awesome rebuild steve.
One question, I went through the uninterrupted pics thread and didn't notice this: Are the batteries that are underneath strapped down to keep them from moving up and down? Didn't really see anything.
Can't wait to see some new vids of EVERYTHING playing.
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I'll be at the one in benton harbor, MI so I can get my 35 points in S2 and DB2.
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ill be at algonquin, i think its usaci, but im not sure yet, tl tho
sat aug 15 is the rain date, aug 1st was the original date
Street Legal Audio
1123 W Alqonquin Rd, Algonquin Il
$20 registration
its says 4th annual... so im guessing there should be good turn out... altho its likely going to be filled with amatuers and few pros...
Ah ok, I've been to that shop a few times for previous shows.
We'll see about that one.
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holy hell... well now i know what a dd sounds like unloading... i thought for sure that thing was smoked
are you going to any one of the next two weeks events... alsip, zion, or algonquin shows?
Gotta work this weekend, so those shows are out of the question.
When/where is this algonquin show?
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and jesus tommyk went thru 5 or 6 tied final runs at bassrace 139.9, good runs :hairtrick: (then he kept playing til his speaker popped and got very stinky, and we all laughed at his ten being murdered)
Just thought I'd add that my sub is still in working condition.
When I was demoing after my usaci runs somebody opened the passenger door which causes the enclosure to unload, which is why the sub sounded like it was dying. Closed the door and it kept going like a champ.
Pulled it out of the box yesterday and both coils are still good and everything is still in one piece. It just didn't want to die!
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I know there's a MECA show in benton harbor on june 7th that I'm going to try and attend.
Otherwise you just have to check the show schedules of the org's.
www.dbdragracing.com
www.mecacaraudio.com
www.soundoff.org
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So whos gona be there 2marrow?
There will be quite a few of us from ca.com.
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If you aren't concerned about fusing or wanting to seriously compete in MECA, they'll probably just put you in S5.
Just go and have fun.
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I'm going just for the fun of it. Only 20 minutes away.
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Yeah, I was thinking about bringing mine, but the owner made it very clear if he thinks I work in a shop (or anyone for that matter) they will be disqualified. So bringing something he doesn't have like a TL, might piss him off.
Side show FTW!
From the sound of that, it seems as though he's going to spike the meter for his customer's cars.
Gotta love the a/c.
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Sounds kinda lame, but if i'm off of work I might go up there anyways. It's only 20 minutes from my house.
Perhaps I can bring my termlab along and have them use that instead? Haha.
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Honestly, I would be up for either.
But I'm leaning towards db drag because I need points for finals.
Nut hug that..gif){kind=small}
Even if they did, its only about 1/2" clearance and teh positives have all been covered with some PVC Membrane so they would never spark if for some reason they did jump. They certainly could never jump enough to fall out (even if i rolled my truck). You couldnt get them to fall out anyway, there isnt any room for them too. I didnt "make an exception on playing it safe", if you think about it, they are boxed in and really cant go anywhere. Honestly bro, if i took a jack and placed it on the middle battery (for instance), im pretty sure the truck would go up before the entire rack of batts (connected with bussbar) would move out of position. Im pretty confident its safe or i wouldnt drive with it like that.
Nice Sub A Team
in DC Sound Lab - Big Bass on ANOTHER LEVEL!
Posted · Edited by tommyk90
Apparently you neglect to fully read my posts.
I stated several times that PPI made a flat cone. But they have NOT made a flat cone that can take the abuse that subs face today. Alma gates my have used flat cones in her old bronco, but she had multitudes of them which in the end didn't receive as much abuse as most subs do today, even in daily driver applications.
Plus I'd like to see a back shot of the PPI sub to see if it's actually a flat cone, or just a flat dustcap that is layered over a normal cone.
The only company to try a flat cone since the PPI subs was eD, and we should all remember that disaster. Even an aluminum backing on the cone couldn't help them from falling apart. Though eD isn't a company I would trust with such a design anyways.
I know I'm really coming off as a douche in this thread, which wasn't my intention. Rusty is a good guy but I just really, REALLY don't care for this idea. That shouldn't deter people from buying his stuff because we all know it works. Not every sub is suited for every environment. It's just my personal experiences that form my opinions.