My Monitor 7s Back in Action ... wow!

Mystery

fredb44118 wrote: »

I also have some Monitor 7s that I think need to be re-capped, but have some questions. I'm new to repairing speakers, so please bear with me.

I'm hearing a little static from the tweeters when there is a high frequency sound. It is not a constant static - it only happens when an instrument hits a high frequency. Also, volume level doesn't matter as I can hear it on high and very low volumes.

I've changed speakers wires, checked all connections, and tried 3 different receivers and can replicate the issue every time. It is definitely a problem with the speakers.

Would re-capping the crossovers resolve my issue? Or do I have a bad tweeter?

If re-capping is necessary, I would prefer to only replace the "bad" capacitor, as the speakers sound great otherwise - no issues with bass or mid.

Thanks in advance for any help!

Probably polyswitch.
You can take the tweeter out and play directly at low power.
If it plays fine, replace polyswitch.
If still has static, time to get new tweeters.
If yours has fuse on the back, there is no polyswitch.

Wait for other comments.

michaeljhsda2

Do they have fuses on the back? If so, use contact cleaner.

fredb44118

No fuse on these Monitor 7s. Date on the crossover board says 1986 if that's helpful.

What is the polyswitch... the resistor?

Nightfall

Here you go:

https://en.wikipedia.org/wiki/Resettable_fuse