DevilDawg Posted November 10, 2020 Report Share Posted November 10, 2020 I posted a few months ago help with restoring my AR2s spent a lot of time on the cabinets they were in really nice shape but I sanded them down and refinish to furniture grade,even sanded down and stained the front with a black ebony polyurethane stain now for the parts...need new pots tweets caps see prices all over the board diff tweeter choices some with voice coil others without diff pots cheap caps or a kit bundled together what’s the consensus on the right parts and supplier for what I’m looking for thanks Quote Link to comment Share on other sites More sharing options...
lARrybody Posted November 10, 2020 Report Share Posted November 10, 2020 Lots of choices here. Lets start with the caps first. I have three sets of 2ax's that I have restored and kept. Set 1. Two of these parallel wired together for the 6uf cap. https://www.parts-express.com/dayton-audio-pmpc-30-30uf-250v-precision-audio-capacitor--027-220 This for the 4uf cap. https://www.parts-express.com/dayton-audio-pmpc-40-40uf-250v-precision-audio-capacitor--027-226 About 25 dollars plus shipping Set 2. One of these for the 6uf cap. https://www.erseaudio.com/Products/PulseX250v/MPX25-03-6-00 And two of these wired together for the 4uf.cap https://www.erseaudio.com/Products/PulseX250v/MPX25-03-2-00 About 7.5 dollars plus shipping. Set 3. This is my crazy stupid set of 2ax's These wired in parallel for the 6uf. https://www.madisoundspeakerstore.com/supreme-caps/mundorf-2.7-mfd-supreme-caps/ https://www.madisoundspeakerstore.com/supreme-caps/mundorf-3.3-mfd-supreme-caps/ And these wired in parallel for the 4uf.cap https://www.madisoundspeakerstore.com/supreme-caps/mundorf-3.3-mfd-supreme-caps/ https://www.madisoundspeakerstore.com/supreme-caps/mundorf-2.2-mfd-supreme-caps/ About 200 dollars plus shipping They all sound good. The possibilities are plentiful. You could even use electrolytic caps like the originals were, although I prefer polys here. My opinion on the pots. Don't try to clean the originals. I would go with these L-pads. https://www.parts-express.com/speaker-l-pad-attenuator-15w-mono-3-8-shaft-8-ohm--260-248 or get these from the eBay seller hifiaudio . https://www.ebay.com/itm/ACOUSTIC-RESEARCH-SPEAKERS-control-potentiometer-AR-2AX-AR-3-AR-4-AR-5-AR-6/164155405428? hash=item26386cb474:g:85QAAOSw5WReIgWE They both do about the same thing. Big difference in price. I have one set with cleaned original pots, one set with l pads and my crazy stupid set with the replacement pots from hifiaudio. The tweeters area toss up. If your originals are rebuildable I suggest you send them to Roy C or Chris1 and have them rebuilt. This would sound the best. The HiVi Q1R are a good choice, You will need the small inductor coil and possibly a cap value change, but this will work. https://www.parts-express.com/hivi-q1r-1-1-8-textile-dome-tweeter--297-417 The third option is the Midwest speaker replacements. I have no experience with these, but others speak favorably about them. https://www.ebay.com/itm/AR-Acoustic-Research-Replacement-8-ohm-Tweeter-for-AR-2ax-AR5-LST-2-MT-4121-8/162689351715?hash=item25e10a8023:g:k~kAAOSwc8lZzEo4 These are just my opinions and opinions are much like elbows. Most people have at least one. Oh you did not mention the grills. There is really only one option and that is the 18 count lambs wool linen from 123 stitch. It looks and preforms so much like the original it is uncanny. https://www.123stitch.com/item/Wichelt-18-Ct-Lambswool-Linen-Needlework-Fabric-27x36/59-135X Quote Link to comment Share on other sites More sharing options...
DevilDawg Posted November 11, 2020 Author Report Share Posted November 11, 2020 Hey that’s a really detailed list I really appreciate this I’m going to send the tweets off for repair but pick up some replacements for now I’m itching to get these into my system plus they turned out so nice they will match the decor wife approved! Built some nice little stands out of angle iron and butcher block I’ll post picks results when they are put together thanks again Quote Link to comment Share on other sites More sharing options...
jackrock Posted February 4, 2021 Report Share Posted February 4, 2021 I too have some AR2ax in the process of refurb. I have ordered the HiVi Qr1s from Parts Express, but have not been able to accurately identify " .05mh parallel inductor ". When I searched for that on Parts Express I got three choices, not sure if any are correct. Can someone provide a specific source and part number please? Quote Link to comment Share on other sites More sharing options...
rjr513 Posted February 4, 2021 Report Share Posted February 4, 2021 39 minutes ago, jackrock said: I too have some AR2ax in the process of refurb. I have ordered the HiVi Qr1s from Parts Express, but have not been able to accurately identify " .05mh parallel inductor ". When I searched for that on Parts Express I got three choices, not sure if any are correct. Can someone provide a specific source and part number please? https://www.parts-express.com/Dayton-Audio-LW18-05-0.05mH-18-AWG-Perfect-Layer-Inductor-257-798 https://www.parts-express.com/Jantzen-1947-0.05mH-18-AWG-Air-Core-Inductor-255-200 Either will work ..but the Jantzen#255-200 is on backorder 2/25/2021 Quote Link to comment Share on other sites More sharing options...
jackrock Posted February 4, 2021 Report Share Posted February 4, 2021 Great, thanks. I have the Daytons on order. Any recommendations on how to mount and wire the inductors to the tweeters. Quote Link to comment Share on other sites More sharing options...
rjr513 Posted February 4, 2021 Report Share Posted February 4, 2021 The coil is best mounted to rear of HIVI tweeter and attached across the speaker terminals using some type insulated spacer between coil and tweeter body you can use piece small cardboard, then hot glue everything to tweeter body NOTE!!! this example shown is setup for front wired tweeter connections where you see wires going through hole drill on tweeter flange to allow connection to front of cabinet... if your AR2ax is rear mounted connection you would NOT drill holes through tweeter flange See Attached image Quote Link to comment Share on other sites More sharing options...
jackrock Posted February 5, 2021 Report Share Posted February 5, 2021 Thank you, photo is a big help. Really appreciate it. Quote Link to comment Share on other sites More sharing options...
Chilo61 Posted September 25, 2021 Report Share Posted September 25, 2021 Hi lARrybody, Do you mind if you could post the picture how to wire the dayton caps with the wires? Obviously it will be different from the original AR. Thanks. Quote Link to comment Share on other sites More sharing options...
Chilo61 Posted September 25, 2021 Report Share Posted September 25, 2021 BTW, can I use 3.9uF/250V to replace the 4.0uF/250V, and either 5.6uF or 6.8uF/250V to replace the 6.0uF as specificied? I found some Clarity caps with them. Quote Link to comment Share on other sites More sharing options...
kryten79 Posted September 27, 2021 Report Share Posted September 27, 2021 The 3.9 for a 4.0 is fine. The 5.6 for a 6 is just outside what I would be comfortable with, but it will likely work as well. Remember the original caps you are replacing were very likely +/-10% tolerance caps. If they were amazingly close, figure they were plus or minus 5% so on a 6.0uF cap gives a range of 5.7 - 6.3uF. 250V rating is more than adequate. Madisound carries a 6.0 clarity PX cap and other sites and brands offer a 6.0 as well. Maybe you have limited options for where you can order? Quote Link to comment Share on other sites More sharing options...
RoyC Posted September 27, 2021 Report Share Posted September 27, 2021 On 9/25/2021 at 8:00 AM, Chilo61 said: BTW, can I use 3.9uF/250V to replace the 4.0uF/250V, and either 5.6uF or 6.8uF/250V to replace the 6.0uF as specificied? I found some Clarity caps with them. I agree with Kryten79, and Madisound is an excellent retailer. If you are using Dayton caps sold by Parts Express, the 6.2uf cap is more appropriate than the 5.6uf cap. https://www.parts-express.com/Dayton-Audio-DMPC-6.2-6.2uF-250V-Polypropylene-Capacitor-027-427 Roy Quote Link to comment Share on other sites More sharing options...
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