ProSoundWeb Community

Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => LAB Subwoofer Forum => Topic started by: John Luty on November 29, 2012, 03:59:26 pm

Title: speaker cable melted to the input jack
Post by: John Luty on November 29, 2012, 03:59:26 pm
actually the plastic nut on my Peavey pv118 melted to the cable .That input is shot but do you think the rest of the speaker is damaged? I didn't see any other thing wrong
Title: Re: speaker cable melted to the input jack
Post by: Ivan Beaver on November 29, 2012, 06:31:23 pm
actually the plastic nut on my Peavey pv118 melted to the cable .That input is shot but do you think the rest of the speaker is damaged? I didn't see any other thing wrong
The heat is caused by the resistance due to the poor connection of a 1/4" connector.  It is quite amazing how hot a 1/4" plug/jack can become.  That is why it is not used as a pro connection (and other reasons-damping factor-again due to high resistance of the connection and so forth).

There is no way to know about the speaker.  Of course it could have been a blown speaker that caused the excessive current.

The only way to tell is to take the speaker out and see.  Put a 9V battery across the loudspeaker terminals and see if it "pops".  If it does-then that is a good sign.

If not you need to dig a bit deeper.
Title: Re: speaker cable melted to the input jack
Post by: John Luty on November 29, 2012, 08:25:56 pm
is a difficult to replace the melted jack with a speakon ?
Title: Re: speaker cable melted to the input jack
Post by: Ivan Beaver on November 29, 2012, 08:37:12 pm
is a difficult to replace the melted jack with a speakon ?
Depending on the plate and room available.  You might just have to drill out a larger hole ( a step bit is good for this)