HDC3 wierd noise

[jamesw 10+ year member]

shit happened to me to with a A coil hdc3 15"

 

[seedubs1 10+ year member]

How low under tuning are you guys playing these?

Sounds like an over-excursion issue. They can play a decent amount under tuning, but there is a limit before you rip the spiders either off the landing or off the former.

 

[mlstrass 5,000+ posts]

What did you do for your break in process?

Let the car play in the garage for 10-12hrs straight. Usually some old school rap or disco, so nothing that drops low. Every 3-4 hours I turn up the sub level a little more.

After 12 hours I crank em on music for a few minutes and then meter full tilt tones and music. I was trying a few diff copper suspensions and a diff VC config with the alum, so that's why I did so many recones in 3 weeks. Sucked balls...

AQ sells the recone kits and they come with shims, just need to get a CA glue kit if you don't have any.

I run an AQ3500 on each sub daily and haven't hurt a sub yet. One show last year I demo'd full tilt for around 15 minutes straight. I'm sure voltage dropped and I was clipping the shit out of them, but they still wouldn't die, only got a little stinky.

 

[adio25 10+ year member]

Whats your low-pass and how often are you below tuning?

 

[bhsdriller 10+ year member]

must be user error, I bought a recone from aq and did it my self. My hdc3-15 played fine for like 6 months on 2,000 watts before I sold it for

 

[Squirrel18 10+ year member]

How much was the recone kit from AQ? J/w because psi gave me a quote.

 

[mlstrass 5,000+ posts]

Whats your low-pass and how often are you below tuning?

SSF around 30Hz, LPF = 80Hz. Tuning around 36Hz for daily and I regularly demo Decaf's version of "trunk bang" which drops to 29Hz. EASY hair tricks with that song...

HDC's are very strong subs, but anything can be blown if misused/abused badly enough. I do play below tuning and with a lot of power, but no bass boost and I have a shitload of electrical in my car. Clipping will kill any sub as will over excursion from pushing it too hard way below tuning...

 

[mlstrass 5,000+ posts]

How much was the recone kit from AQ? J/w because psi gave me a quote.

Call DJ and get a quote. I believe the 15" coppers are around $75 and the alum was a little more, but call him to be sure as that was a end of last season...