Help! Blown Horn? Blown Speaker?

[chowterhead]

Last night while playing a gig someone mentioned that our right speaker
(Yamaha S115V) was crackling. And it was. It sounded like it was coming
from the horn, but was hard to tell between that and the speaker. I took
the EQ down on the high end and it seemed to help a little bit, but was
still there every once in awhile. Anyway, does this mean that the speaker
is blown or that it's the horn or neither?

Also, when you do blow a speaker does that mean I need to buy a new one or
is it easier/cheaper to find a replacement part for it?

Thanks,

David

[Greg Shadoan]

Post by chowterhead
Last night while playing a gig someone mentioned that our right speaker
(Yamaha S115V) was crackling. And it was. It sounded like it was coming
from the horn, but was hard to tell between that and the speaker. I took
the EQ down on the high end and it seemed to help a little bit, but was
still there every once in awhile. Anyway, does this mean that the speaker
is blown or that it's the horn or neither?
Also, when you do blow a speaker does that mean I need to buy a new one or
is it easier/cheaper to find a replacement part for it?
Thanks,
David

Its Probably only the internal passive crossover. These are paticually easy
to blow. Check the drivers with a DMM, it they look goood, then look at the
crossover for blown caps.

Greg

[Mikey]

Post by Greg Shadoan

Post by chowterhead
Last night while playing a gig someone mentioned that our right speaker
(Yamaha S115V) was crackling. And it was. It sounded like it was coming
from the horn, but was hard to tell between that and the speaker. I took
the EQ down on the high end and it seemed to help a little bit, but was
still there every once in awhile. Anyway, does this mean that the speaker
is blown or that it's the horn or neither?
Also, when you do blow a speaker does that mean I need to buy a new one or
is it easier/cheaper to find a replacement part for it?
Thanks,
David

Its Probably only the internal passive crossover. These are paticually easy
to blow. Check the drivers with a DMM, it they look goood, then look at the
crossover for blown caps.
Greg

You may want to try several methods of testing.

1)To be sure that it's not something before the speaker, hook-up the
left speaker to the right amp output & test. If the problem is still
there, then it's not the right speaker.

2) If you can disconnect the tweets & woofs from the xover & test them
separately, feed the same signal from the same amp output to each
component - both left & right speakers. Listen for any differences
between R woof & L woof, R tweet & L tweet. Woofer problems may be
harder to hear, due to the lower freq. response.

3) Also, first try Greg's test above.

best of luck,
Mikey

[chowterhead]

Thanks for the advice. But what's a DMM? Also, I didn't know that the
Yamaha's had an internal passive crossover.

Post by Greg Shadoan

Post by chowterhead
Last night while playing a gig someone mentioned that our right speaker
(Yamaha S115V) was crackling. And it was. It sounded like it was coming
from the horn, but was hard to tell between that and the speaker. I took
the EQ down on the high end and it seemed to help a little bit, but was
still there every once in awhile. Anyway, does this mean that the speaker
is blown or that it's the horn or neither?
Also, when you do blow a speaker does that mean I need to buy a new one or
is it easier/cheaper to find a replacement part for it?
Thanks,
David

Its Probably only the internal passive crossover. These are paticually easy
to blow. Check the drivers with a DMM, it they look goood, then look at the
crossover for blown caps.
Greg

[Greg Shadoan]

Post by chowterhead
Thanks for the advice. But what's a DMM? Also, I didn't know that the
Yamaha's had an internal passive crossover.

The Yamaha model S115IV has an internal passive crossover. DMM is short for
digital multi meter.
Any meter capable of measureing impedance, or contunutiy will do the job.
Look for about 8 ohms on each of the drivers, disconnected from the internal
passive crossover. If either driver shows open, (OL on a DMM) then it is
most likely toast.( A technical term- lol) If the drivers show ok, then take
the whole unit to an authurized Yamaha repair station as it probably will be
the crossover. Without the service info, and the correct parts to repair,
this will be your best bet. Is the unit still under warrenty? This is
probably what you should do now. If you dont know what a DMM is, then you
should get someone who does, or just take it in for repair.

Good Luck

Greg