Tweeters blown ?

[Tonestar1]

JamesPart:
Ok well I decided to unscrew the woofer and carefully take it out, and straight away I find something just laying on the foam inside, heres a picture:



I'm assuming this is the back part of the tweeter?

The off white ring round towards the bottom of the tube is the nut I described. Do not try to unscrew the tube itself or you will burst the seal to the front part of the tweeter.

 

[pwiles1968]

JamesPart:It's setting me back £88 for 2 tweeters including delivery and VAT, not too bad, I'll be more carefull from now on though, although I have just upgraded amplifier so should be a little safer anyway.

How did you order the replacements? Someone at work needs a pair.

 

[tunkas]

Just got a new amp (Marantz 6005) and it seems like my tweeters (on JBL Northridge E80) are not working. The sound seems normal, but I think high pitched sounds are not present... I tried listening on both tweeters and they both don't produce any sound. I opened them both, and one of them has partialy melted the plastic band on the back that holds it in frame.
Both woofers and a midrange work normaly.
Does this sound like a blown tweeters or is it the crossover?

Thank you for your help?

A

 

[torikoos]

Just got a new amp (Marantz 6005) and it seems like my tweeters (on JBL Northridge E80) are not working. The sound seems normal, but I think high pitched sounds are not present... I tried listening on both tweeters and they both don't produce any sound. I opened them both, and one of them has partialy melted the plastic band on the back that holds it in frame.Both woofers and a midrange work normaly.Does this sound like a blown tweeters or is it the crossover?

Thank you for your help?

A

Ouch , that's been hot. You must have seriously turned up the volume? I've done it myself years ago. Just seeing what the system was capable off, and then also trying a CD with frequency sweeps on it, to see how high I was able to hear etc. Fried my tweeters too...

It is likely that your amp was clipping, which as a result sends straight DC current to your speakers. speaker coils can't handle DC very well, and tend to fry up. Tweeters, being smaller and more vunerable generally, tend to go first.

 

[tunkas]

I have tested both tweeters with multimeter and seems like both are blown.

Orderd replacements over e-bay and will install them as soon as they arrive.
Thank you for your help!

A

 

[manix]

Just got a new amp (Marantz 6005) and it seems like my tweeters (on JBL Northridge E80) are not working. The sound seems normal, but I think high pitched sounds are not present... I tried listening on both tweeters and they both don't produce any sound. I opened them both, and one of them has partialy melted the plastic band on the back that holds it in frame.Both woofers and a midrange work normaly.Does this sound like a blown tweeters or is it the crossover?

Thank you for your help?

A

Ouch , that's been hot. You must have seriously turned up the volume? I've done it myself years ago. Just seeing what the system was capable off, and then also trying a CD with frequency sweeps on it, to see how high I was able to hear etc. Fried my tweeters too...

It is likely that your amp was clipping, which as a result sends straight DC current to your speakers. speaker coils can't handle DC very well, and tend to fry up. Tweeters, being smaller and more vunerable generally, tend to go first.

I doubt it was seriously loud using a amp like 6005. But yeah clipping for sure as you say.