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RE: Electro-Voice Regal lll

Posted by DaveV on January 16, 2017 at 14:48:55:
Craig,
With the red and black markings now known it looks to me like the drivers are wired in electrical phase with each other. All reds go to plus or red input and all blacks go to the minus or black input.
The Tweeters started out as 16 ohm units as did most of the other EV drivers but over the years the tweeters were available in 8 or 16 ohm and they should be marked accordingly.
I know my two 16 ohm T35's measure around 12-13 ohms so your reading of 7-8 ohms is really a mystery if the diaphragms are original.
You have two opinions so far. Mine that was just replace the 2.84 and 5.7 and see what that does and Paul's that said he would replace the pots with pots that were meant to be used with 8 ohm drivers and I take it that would also mean replacing the 2.84 caps with another 5.7 or 5.8 for what looks like the closer to 8 ohm tweeters.
I see where he's coming from about the existing tweeter pots affecting the xover point depending on where they are set but in my view that's going to happen with different pots too, but to a lesser degree because in theory you have a mismatch to start with.
We are both going on the readings you supplied from the drivers and because both sets seem to be not all that far off, it would seem logical that those are the real readings.
To me, the only truly fixed xover is an electronic one like in a bi-amp setup where the xover point won't change with different signal levels or a different driver impedance.
We were both confused about the 5.7 cap for the mids and those would remain in either case unless you changed out the mid drivers and at that point, at least in my opinion, you might as well get different speakers because now you'd also probably have to change the xover parts for the woofer too.
I'm thinking that you like the RCA sound better because it's not as bass or lower mid heavy. In listening to my Esquires I find that somewhat annoying and it does sound like they aren't very open but they are what they are.