4.75" Acoustic Research Genuine .75" Dome Tweeter, AR3a, AR9, Others, 12000840

Brilliant tweeters. I've finally completed the refurbishment of my AR 3a speakers with the OEM dome Tweeters. I'd previously used the re-foam kit from Simply Speakers on the Woofers. The midrange are original untouched. I also built a new set of crossovers - to get rid of the noisy switch mechanism and I replaced all the components. I'm extremely pleased with the result. Clear, well integrated sound and a joy to listen to. I've found the best placement is to put the speakers on their sides (as shown in the original brochures). I believe you get a more consistent sound with that alignment. I found the midrange tended to dominate the sound when the speakers are positioned upright. Great to have these 60's speakers singing again.

To be able to find a "bolt in" tweeter replacement for a 40 year old speaker was great. The sound is like the original. The mounting had 2 complications: The rear connecting lugs ( as opposed to the original front mount) necessitated a relief cut in the face of the cabinet in 2 places corresponding to the lug location so the tweeter would actually fit. A hole had to be drilled in the front of the cabinet to run wires to connect to the front connecting block.I used a common hole for the mid range drivers wires, filled with hot glue and taped for a more or less original appearance.

Simply amazing.I had not been able to get this tweeter for over 20 years and now my pair of AR9 sound as they were meant to be. Thanks a lot.

Very Good Replacement sounds great.

I replaced two 35 years old original AR 90 tweeters with AR-12000840 4.75" replacement from Simply Speakers. Sounding is smoother in high end notes now which I missed them for very long times. However, little distortion is now more noticeable coming from the midrange drive. Because in AR90 4- way design, most of the sound is produced by the high-midrange tweeter instead of normally by the 8" midrange woofer. I will replace them soon and hope to restore its glory. Kim

Great tweeter are a great price They sound great. Would recommend this item

Excellent product and service! Fast delivery (even to Australia). Great advice from the experts

One of my original tweeters was damaged, so I replaced both to make sure the performance matched. The tweeters worked perfectly and provided (as close as my ears could compare) the sound of the original units. The mounting holes matched perfectly, though I did have to modify the cabinets, as the original units have front facing connections and the replacements had connections on the rear. I also installed new foam surrounds on the woofers, midrange and tweeter pots, cross-over capacitors, and fiberglass insulation. The restoration project was a total success!

Love the new tweeter I bought the ar12000840 dome tweeter perfect for my rtr 240 d I bought the replacement woofers for another pair of rtr I'll let you know how I like when I get them but everything has been great thanks

I had to enlarge hole in 94R cabinet to fit this tweeter. Original tweeter had blown out. Sound is great, coupled with the Edge It re-foam job, my speakers sound like they did when I bought them over 30 years ago.