Tweeter Capacitor Upgrade (Coincident PREs)

At this time, I am not really inclined to do anything besides replace the tweeter capacitor, but clearly there's a lot to think about there.  I think improvement there is highly likely, but I'm a little less confident about the wiring/inductor/post changes. My soldering skills are improving, but I prefer not to touch what I don't have to.

And in regards to some of the conversation, I've looked inside the speakers and indeed, the only cap is on the tweeter. The mid-range is connected directly to the binding posts, and I'm pretty confident that the only component inside the subwoofer cabinet is the large inductor coil.

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

Dammit.  The Jupiters are sold out at both PartsConnexiion and SonicCraft.  PC does have the Duelund RS Copper Foil caps, but I think you all talked me into the Jupiters... 

Psssst ....
Do a CMR with a Jupiter bypass cap. :)

Best,
E

Ha.  I added them to my cart but didn't buy yet.  Very torn about the process.  I suppose experimenting isn't too bad, especially at $55 a cap for the CMRs.  I just worry that I'll fry my tweeters if I play around too much.  Would much rather solder once and be done...