cold solder joints on loudspeaker's crossover

thes

Active Member
Hi
my speaker's midrange is making intermittent sound probably caused by cold solder joints on the crossover ( i've tapped the crossover with a pencil and sound comes back).
So i'm about to re-solder all the solder joints on the crossover but there are some 100v capacitors on it : can i resolder them without discarging them first? I don't know how to do it, please let me know
 
Should be good to touch the joints up. I've never heard of anyone getting a shock from a speaker crossover. I've worked on a few myself without issue.
 
first off, the voltage inside a speaker is so low that it is unlikely to give you a shock.

let's say you played Black Sabbath at 747 levels or about 50w, at 8R
that's only 20v. and the minute you turned that amp off, the voltage decays
down to almost nothing.

use flux, or new solder and go over all solder joints, tighten all the mounting
screws (speaker binings, crossover mounting, rear panels, etc) and clean
off posts and all speaker connectors.
 
If the speaker has and L-pad and/or switch(es), there is probably a greater chance that that it/they is/are dirty than having a cold solder joint.
 
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