Too big of a box?

[LetMyBeatPound]

Have a question about something. I just cut my subs up because I'm having them reconed tomorrow. The only real damage is to the coil former it looks like it has bottomed out quite bad a few times. Would the contact with the coil former cause my could minor Charing on the inside of the former. The actual coils looked to be in great shape still even the part that looks like it hit the bottom isn't even really bad looking it on the inside of the former it looks like idk what make melt spots or something but you can see where it was contacting n rubbing inside just in weird lil spots. I'll put pictures when I get home. Is it possible I just made my box too big and they aren't loading enough internal box pressure to keep from bottoming out.

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[THATpurpleKUSH 5,000+ posts]

Physical damaged from bottoming out and charring can be related to too large of a box for your power. Did you have the box plotted in winisd or bbp6?

 

[staan]

playing below tuning freq?

 

[THATpurpleKUSH 5,000+ posts]

playing below tuning freq?

He's tuned to 32hz so you would have to play pretty low like below 25hz before the subs come close to unloading.

 

[LetMyBeatPound]

I've played a few below that. I try not too tho. I just learned about this concept from a video that explained box rise and tuning and how they coralate to each other when it come to choosing gear and designing a box. Probably why Frank said these do best in a forth order. I have these stock recones for it, I am having a guy who does custom subwoofers. Frankenstein's Custom Subwoofers. I wonder if he would be able to add another spider to the stock drop in.

 

[Hertz Mafia]

Post a pic of the coil

 

[LetMyBeatPound]

That and my box is probably closer to 20ft which is 8ft³ more than recommended for a ported box

 

[shredder2]

Really, nobody can say for sure about anything until you list net vol, or overall dimensions the volume can be found, and port area/length.

Looks like pair of 18's to me... lol

 

[Hertz Mafia]

^ that box doesn’t look big at all. Looks kinda small

 

[LetMyBeatPound]

 

[Hertz Mafia]

Looks like u got it to hot and bubbled the former. Clip city or to much power (heat)

But it kinda hard to tell from the pics. Rub mark or heat warpped

 

[LetMyBeatPound]

My box specs as I just did with a measuring tape.

 

[LetMyBeatPound]

Yea those spots feel like bubbles.... I will just have to go easier on them this time. Plus I have upgraded my electrical significantally since they first got messed up. So they shouldn't clip from bad electrical anymore anyway

 

[LetMyBeatPound]

I was thinking to get a bigger amp too. But now I'm not so sure

 

[Hertz Mafia]

Your box is only .75” thick for two 18s? Looks like triple baffle to me

1.Need thicker box

2.Need bigger box

3.Need bigger port

4. More power is never a bad idea lol