tripleguy

Yes I was just wondering if you could close off the opening to keep mineral fiber out of them. I did apply a thin layer of silicon already. Pretty thin.

What's the best method for protecting original AR 3 and 2ax pots after cleaning? Do they require any venting to dissipate heat? Could you for instance wrap them in tape? Thanks in advance

I knew a guy who ran RTR ESR 15s with 4 AR3s. Sounded amazing but he had lots of power from a Mac MC2300.

Good job. I can notice a difference in the recordings played through my system. Cymbals and the other highs are much more present. One thought tho on recalling a speaker's characteristics from hearing them last 50 years ago. I could not tell you what my speakers from 40 years ago sounded like (JBLs). I know I liked the way they sounded but if I heard a restored pair today I couldn't tell you if that's what I heard 40 years ago. As long as they sound good to you is all that matters.

Its very hard to tell in the video Bill. The mid carries so much of the lower treble in those speakers. You'd almost need to kill the mid and take woofer out of circuit but the tweet isn't going to produce a lot of sound. I still think killing mid and doing a 6K-10K sine wave sweep will 1) confirm output and 2) demonstrate how little is there in freq much above 9K. On mine (smaller tweeter version) I have to be up close to the tweeter to hear anything above 9K. My ears start to roll off there tho. I'd need headphones to hear much higher. My friend has restored AR3s with the phenolic dome tweet (rebuilt). I can check his next time Im there. One other thought: might be an issue with the mids since they carry a lot of high freq. My friend's AR3 mids needed a rebuild. Sound was muffled even after I changed pots and caps.

With 2 speakers in the system, in stereo, I find the sound very pleasant. Yes, it's a bit surprising at first how much high freq the "midrange, carries. Cymbal freq is very wide, from 600-800 Hz up to 10kHz before disolving into harmonics. On an EQ mixing board, you would typically boost 6kHz to 8kHz freq. Sizzle is often not really desired so anything after 10kHz is generally dropped. The 2ax tweeters (old and newer) would or should do well inside of those parameters.

Thx. Might be worth a try then I guess. Original orange domes were approx 2 ohms tho.

My tweeters on my AR2ax have the dreaded no/low output. I see an eBay seller from China that offers a pair ofAFT 0.75" Silk Dome Tweeter Diaphragm for Acoustic Research AR2ax,AR11,AR3a 4ΩI'm not looking for perfection but might these do well enough? I'm pretty confident I can remove the old dome and voice coil.and clean up the air gap and surrounding material. These new replacements look like they could be glued down with Aleen's Craft Glue of even speaker surround glue. Thoughts? I know Vintage AR as well as Chris can do these but I'm just wondering if results should be adequate with this silk dome. These coils have the leads protruding at the bottim which should work with my surface mount terminals. Original tweeters are the brown dome, 3 dot suspension type.