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Killed my Deltalite 2512

#43
Bass_Pounder said:
Carefully examine the cone, especially near the surround.

Sounds like you creased the cone from over excursion.
Click to expand...
This is only one possible symptom of exceeding mechanical power handling, and because of cone edge geometry of this particular driver, is not nearly as common as on some old school geometries.

The only practical way to tell the cause of failure is with forensic failure analysis of the damage.
 
#45
It still plays cleanly at low volume... just fuzzes at useable volume (well below "loud")
Click to expand...

There's 3 things I can think of off hand that cause that:

1. Voice coil rub, which is easily revealed by moving the cone back and forth by hand. If you feel or hear it rub, the speaker is done.

2. Tensile wire slapping the under side of the cone, as I suggested before as a possibility. The middle of the wires should not be able to touch the back of the cone. This can be fixed with hot glue or foam tape. I have seen this happen a million times with all types of speakers. Leaving those wires a little too long is a common production error.

3. Loose magnet, which can vibrate against the frame and sound like fuzzy distortion or a rubbing voice coil. This is revealed by gently knocking on the back of the magnet with something like a rubber mallet. If the magnet is loose, you'll get a clank noise...you'll know it if you hear it. This probably cannot be fixed. I don't think this is as likely because I have never seen an Eminence speaker have that problem.
 
#46
BbbyBld said:
There's 3 things I can think of off hand that cause that:

1. Voice coil rub, which is easily revealed by moving the cone back and forth by hand. If you feel or hear it rub, the speaker is done.

2. Tensile wire slapping the under side of the cone, as I suggested before as a possibility. The middle of the wires should not be able to touch the back of the cone. This can be fixed with hot glue or foam tape. I have seen this happen a million times with all types of speakers. Leaving those wires a little too long is a common production error.

3. Loose magnet, which can vibrate against the frame and sound like fuzzy distortion or a rubbing voice coil. This is revealed by gently knocking on the back of the magnet with something like a rubber mallet. If the magnet is loose, you'll get a clank noise...you'll know it if you hear it. This probably cannot be fixed. I don't think this is as likely because I have never seen an Eminence speaker have that problem.
Click to expand...
Lets hope for #2. Will revisit this weekend
 
#47
This just in from Aguilar Tech Support:
Hi Rufus,


Thanks for writing. The driver is not the same as a deltalite. It's custom and proprietary. We also don't release tuning information. Sorry!
I wish I could be more helpful.
Please feel free to write anytime.
Best Regards,


Jesse Nissenbaum

Customer Service Assistant
Aguilar Amplification, LLC
(P) 212 431-9109 x 126
(F) 212 431-8201

Guess the SL112 isnt a stock Deltalite 2512
 
#48
I blew out the same speakers in an avatar 2x12, but it was my fault. Last song of the gig. We were on an outside deck on a beachside house on Mercer island. It was July 499th. Nothing behind the speaker but air. I was powering it with a crown microtech 1200. Bridged. Running from a boss gt6b on flanger and chorus.
Playing stranglehold. One went, followed by the other about 5 seconds later.

The next day I cut the surround and the basket and polled the voice coils. They hung from the cylinder like so much loose spaghetti. Kind of a bummer then too...
 
#52
BbbyBld said:
There's 3 things I can think of off hand that cause that:

1. Voice coil rub, which is easily revealed by moving the cone back and forth by hand. If you feel or hear it rub, the speaker is done.

2. Tensile wire slapping the under side of the cone, as I suggested before as a possibility. The middle of the wires should not be able to touch the back of the cone. This can be fixed with hot glue or foam tape. I have seen this happen a million times with all types of speakers. Leaving those wires a little too long is a common production error.

3. Loose magnet, which can vibrate against the frame and sound like fuzzy distortion or a rubbing voice coil. This is revealed by gently knocking on the back of the magnet with something like a rubber mallet. If the magnet is loose, you'll get a clank noise...you'll know it if you hear it. This probably cannot be fixed. I don't think this is as likely because I have never seen an Eminence speaker have that problem.
Click to expand...
I actually did blow an Avatar OEM (deltalite structure) somewhat similar to #3 though still the result of too much heat. It actually got hot enough (as evidenced by VC Inspection and eventual failure) to soften the adhesive and the magnet had worked it's way a good 1/4" - 1/2" out the back before total failure. :)
 
#54
will33 said:
I actually did blow an Avatar OEM (deltalite structure) somewhat similar to #3 though still the result of too much heat. It actually got hot enough (as evidenced by VC Inspection and eventual failure) to soften the adhesive and the magnet had worked it's way a good 1/4" - 1/2" out the back before total failure. :)
Click to expand...
Yeah, mine were thermal failure. The bass on Stranglehold is nonstop and I was throwing 1200 watts into a pair of those pretty much nonstop for the entire song. That was way past their design parameters.

Interestingly, Andy gave me a big discount on the replacement speakers. I'm a big fan of that company, which is why, for my new band, I will finally be pulling the trigger on the 153.
 
#56
ThisBass said:
Many years before I had a conversation with a pro cab builder about the old 2512 (none II).
I was told that many 2512 (none II) speakers suffer on a production fault. I can't remember what caused the issue but it has something to do with motor and/or VC.
Click to expand...

I bought a defective Deltalite 2515 like four years ago, the cone delaminated from the surround about 1/4 of the way around. Eminence warranted it no problem, the replacement has been working perfectly since.
 
#57
agedhorse said:
Why do you believe they were the same speakers? (NOT)
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Maybe I'm confused with the comments being made, but there are 4 totally different drivers being called DeltaLites on this thread... the Aguilar, the Avitar, Robroy's GB's and the stock Eminence DeltaLite 2512. All 4 are different drivers with different TS parameters and different midrange voicing. The only things in common are the motor and basket which is based on the DeltaLite platform.
 
#59
Brought her to outdoor table for surgery. Grill cloth removed
 

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