Tweeter Capacitor Upgrade (Coincident PREs)


Hi all, looking to upgrade the Solen 4.7uF 100V caps that filter the low frequencies out of the Accuton tweeters on my Coincident PREs.  Started by looking at Duelund's, but PartsConnection doesn't even list prices for a lot of the models (or is out of stock) at that value... that motivated me to try and collect some impressions from the group.

Apparently Isreal is using Mundorfs in that position at this point.

As always, thanks for the input.
128x128cal3713

Showing 3 responses by charles1dad

Chris,
Your PRE speaker crossover is pretty simple (fewer part count) and straightforward compared to many other speakers (higher part count). Your instincts are right IMO. Upgrading to a very high quality tweeter capacitor is a very worthwhile single modification. It sure worked out well for me and Bill(Brownsfan). I’m with you in your caution regarding the wire/inductor/binding post. There’s always something better to change to, but these stock PRE items are quite good quality as is. The stock Solens is a 'decent (not garbage) capacitors but is easily bettered.
Charles
Hi Bill,
As usual you've made wise and very rational decisions,  binding post for example.  No good reason to change the Coincident binding posts. They're pure solid copper as opposed to the typical utilized brass posts
Charles .
Agree with advice regarding the inductors, you can easily degrade the sound quality if not sure of specific specifications. Thread carefully. 

Don't agree with advice to rewire as the internal Coincident wire is very good quality. 

Brownsfan (Bill) nice approach for your tweeter capacitor. Some folks don't like to use bypass capacitors but happy this solution worked for you. I went Duelund CAST copper foil capacitors at the tweeter. 5 years later I remain  very pleased with the improvement. Did you consider changing the internal wiring? I sure didn't. 
Charles