Tweeter rebuild

toolbelt

I have some RTI4 tweeters that need repair. Has anybody ever replaced the tweeter driver or rebuilt them? I've see listings for replacement dome diaphragms. What would be the process of removing the driver from it's faceplate and replacing the domes?

ChrisD06

So for these tweeters you'll struggle a lot more than if it were the older style ferrite magnets.

Polk switched to neodymium for the RTi lineup and this resulted in them using some sort of glue/epoxy to hold the magnets on. Taking off the magnet to remove the diaphragm will be nearly impossible and you'll probably end up destroying the tweeter.

toolbelt

ChrisD06 wrote: »

So for these tweeters you'll struggle a lot more than if it were the older style ferrite magnets.

Polk switched to neodymium for the RTi lineup and this resulted in them using some sort of glue/epoxy to hold the magnets on. Taking off the magnet to remove the diaphragm will be nearly impossible and you'll probably end up destroying the tweeter.

Ok so it isn't just me looking at them and wondering where to begin then? lol Seems with the odd shaped faceplate and semi-permanently installed driver, Polk doesn't want them repaired?

ChrisD06

toolbelt wrote: »

ChrisD06 wrote: »

So for these tweeters you'll struggle a lot more than if it were the older style ferrite magnets.

Polk switched to neodymium for the RTi lineup and this resulted in them using some sort of glue/epoxy to hold the magnets on. Taking off the magnet to remove the diaphragm will be nearly impossible and you'll probably end up destroying the tweeter.

Ok so it isn't just me looking at them and wondering where to begin then? lol Seems with the odd shaped faceplate and semi-permanently installed driver, Polk doesn't want them repaired?

It's not that they made them unrepairable, it's moreso they didn't factor in Chinese diaphragm replicas being on Ebay.

It's disappointing you can't replace the ferrofluid but they have a BOM to work with and a certain cost, and saving a buck in one spot is a buck spent elsewhere. Can't blame them for gluing it even though it's annoying

toolbelt

I keep wanting to repair my RTI4's just as a fun project (as I recently picked up far superior RTIa3's), but I seem thwarted at every turn. I don't need the 4's, and would likely just put them into storage to be used as rears at some point in the yet-needed HT I'm planning in the basement in 20 years. Oh well.

ChrisD06

Just sell the parts.