Place an Order? Toll Free: 1-800-511-3343
Shopping Cart -
0 item(s)
Search by
Hello Guest, Login

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
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: 5 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?  1 of 1 Found Helpful
Reviewed by:  from Harrogate, UK. on 12/17/2015
5 Stars
Very Good Replacement sounds great.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Clearfield Utah. on 5/6/2015
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? 
Reviewed by:  from Fairport. on 2/4/2017
5 Stars
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!
Did you find this helpful? 
Reviewed by:  from Illinois. on 1/16/2017
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.
Did you find this helpful? 
Reviewed by:  from STOW. on 1/16/2016



Related Items

Jet Black Speaker Grill Cloth 60
Average Rating(134)
In Stock
Ivory Speaker Grill Cloth 60
Average Rating(10)
In Stock
Average Rating(13)
$179.50  $164.50
In Stock
  • Speaker Repair Videos
  • SS Apparel
  • Diaphragms & Parts
  • New-Edge-It Foam Kits
  • Pro Cloth Edge Kits
  • Rubber Edge Kits
  • Ferro Fluid Kits
  • Speaker Repair Parts
  • Advent - AR - NHT Parts
  • Genuine Eminence Parts
  • JBL Factory Parts
  • ESS Factory Parts
  • EV Factory Parts
  • Peavey Factory Parts
  • Replacement Speakers
  • Tweeters
  • Midranges
  • Woofers
  • Full Range
  • Speaker Grill Cloth
  • Speaker Grills
  • SS Audio Recone Kits
  • Speaker Adhesives
  • Speaker Dust Caps
  • Speaker Gaskets
  • Online Instructions
  • Speaker Accessories
  • Crossovers
  • Specials
  • Scratch and Dent - Open Box
  • Customer Photos & Videos*
  • Speaker Repair Photos
  • Special Order Parts
  • Top Sellers
    New Releases