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  #1  
Old 05-04-2013, 04:19 PM
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Default Reconing Issue

Okay so let me start this off saying these were project subs for my first recones. I picked them up dirt cheap and decided to give it a shot, now I'm asking for feedback from people who have reconed subs before.

Subs: HDC3 10"
Recone: Standard Dual 2 Copper Coil.

So basically I picked up two motors/baskets one for 20 local (CL guy was an idiot) and another on CACO for pretty cheap too. So I decided to give them a shot reconing. I watched a LOT of YouTube videos on reconing and did them step by step, cleaned basket/motor, shimmed, etc etc. Both subs play, coils read good, but the first sub I reconed has a tick audible roughly 900w or so. When really driving them it turns into a slap. The second sub is perfect no issues. My question is, what could be causing this noise? When I got the motor, it was not shifted, and I cleared the gap (could have possibly missed something but I doubt it). And when I press up and down on the cone I can't feel any rub. So anyone with any experience or educated guesses feel free to chime in. I plan on reconing this sometime in the near future and hopefully avoiding whatever might have gone wrong initially. Thanks guys!
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Old 05-04-2013, 04:23 PM
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The coil could be slightly off center, causing it to tap at high recursion do to wobble... make sure the dust cap isn't doing it ... look at all the joints and how the leads r ran (not tapping cone or anything else)
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Old 05-04-2013, 04:26 PM
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Initially I thought it was an uncentered dustcap so I replaced them with bigger (nicer too) caps. Tick is still there. I also thought maybe it was tinsel slap, I don't see any issues with that. Im thinking the coil is probably off a little bit.
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But those Tantric MDs have a 2.5in VC and they are also on a different level for a "750wrms" subwoofer.. All their products are retarded.
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Old 05-04-2013, 04:29 PM
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And some evidence supporting the claim of the coil rubbing, when I reconed these, the first woofer (the one with the tick), I used the shims that AQ sent me. Using all the shims, they didn't sit in as stiff as I had hoped. The 2nd woofer, I used cut up manila folders which kept the gap nice and tight.
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Old 05-04-2013, 04:30 PM
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Originally Posted by Griff1220 View Post
Initially I thought it was an uncentered dustcap so I replaced them with bigger (nicer too) caps. Tick is still there. I also thought maybe it was tinsel slap, I don't see any issues with that. Im thinking the coil is probably off a little bit.
Just for giggles, check the triple joint too...u could free air it...try 40 hz and get some good excursion then at 30...if the ticks there at 30 but not 40 its off center... (40hz is less likely to tap due to less wobble)
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Old 05-04-2013, 04:39 PM
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The tick itself isn't there at 40hz but when it gets to the same given power level, a slap comes out of nowhere and is pretty audible
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But those Tantric MDs have a 2.5in VC and they are also on a different level for a "750wrms" subwoofer.. All their products are retarded.
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Old 05-04-2013, 04:41 PM
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Originally Posted by Griff1220 View Post
The tick itself isn't there at 40hz but when it gets to the same given power level, a slap comes out of nowhere and is pretty audible
Well, its likely tapping on the the former
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Old 05-04-2013, 05:17 PM
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Originally Posted by Jeffhulbert50 View Post
Well, its likely tapping on the the former
You sir were in fact correct. It was bugging me so I carefully pulled the dustcap off the cone and could see the difference in gap size between two opposite ends of the coil. I pried the spider loose (actually came of clean and easy) re shimmed it and am going to reglue it back down tonight after work. Hopefully this will save me $70 for a new recone. Thanks man!
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  #9  
Old 05-04-2013, 05:23 PM
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Good deal man
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