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

Part Number:AR-12000840
4.75" Acoustic Research Genuine .75" Dome Tweeter, AR3a, AR9, Others, 12000840
AR Tweeter 12000840
4.75" Acoustic Research Genuine .75" Dome Tweeter, AR3a, AR9, Others, 12000840
Your Price:$79.00
List Price:$94.00
You Save:$15.00


In Stock 61

Factory Acoustic Research Speaker Dome Tweeter Part # 12000840

  • Special 3 hole mount, rear connection tabs
  • New Acoustic Research design, .75" fabric soft dome
  • Replaces old AR designs with .75" paper domes and phenolic domes
  • Size: 4.75"
  • Hole cut-out: 3.75"
  • Depth: 1"
  • Voice Coil: .75"
  • Magnet: 12 oz
  • Impedance: 4 ohms, Re: 3.9 ohms
  • Power: 80 watts RMS, 120 watts max
  • Response: 7 kHz - 20 kHz
  • Sensitivity: 87 dB
5 Stars
AR3a Tweeters
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.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Harrogate, UK. on 12/17/2015
5 Stars
Very Good Replacement sounds great.
Did you find this helpful?  2 of 3 Found Helpful
Reviewed by:  from Clearfield Utah. on 5/6/2015
5 Stars
AR 90 speaker owner
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
Did you find this helpful?  2 of 3 Found Helpful
Reviewed by:  from Los Angeles. on 8/24/2017
5 Stars
AR91 Tweeters
Great tweeter are a great price They sound great. Would recommend this item
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Australia . on 11/24/2017
5 Stars
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
Did you find this helpful?  1 of 2 Found Helpful
Reviewed by:  from Fairport. on 2/4/2017
5 Stars
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.
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Reviewed by:  from Scranton PA. on 11/29/2018
5 Stars
Excellent product and service! Fast delivery (even to Australia). Great advice from the experts
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Reviewed by:  from Australia. on 7/7/2015
4 Stars
ar 3a tweeter re[;acement
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.
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Reviewed by:  from STOW. on 1/16/2016
5 Stars
AR Tweeter 12000840
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.
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Reviewed by:  from Santa Cruz de Tenerife - Spain. on 5/22/2012
5 Stars
Awesome products My AR12 sounds as good as they were. Wire plugs are 3mm wider than the cabinet cutout. Require 5 minutes filling out the cabinet. Highly recommended.
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Reviewed by:  from Australia. on 9/9/2012



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