lance G Posted March 20, 2021 Report Share Posted March 20, 2021 Enquiring on behalf of a colleague in the U.K. Does anyone have (at least) the part number for the AR925 midrange driver please, with the intention of sourcing a replacement. Thank you ! Quote Link to comment Share on other sites More sharing options...
Stimpy Posted March 20, 2021 Report Share Posted March 20, 2021 The AR91, AR92, AR915, and AR925 could all use the same dome midrange. The 91/92 part number is 200032. The dome midrange, from an AR58S would also work, but the color of the dome trim and frame is different. The domes from AR9s and 90s shouldn't be used, as they have a higher resonance frequency. Good luck. Quote Link to comment Share on other sites More sharing options...
lance G Posted March 20, 2021 Author Report Share Posted March 20, 2021 2 minutes ago, Stimpy said: The AR91, AR92, AR915, and AR925 could all use the same dome midrange. The 91/92 part number is 200032. The dome midrange, from an AR58S would also work, but the color of the dome trim and frame is different. The domes from AR9s and 90s shouldn't be used, as they have a higher resonance frequency. Good luck. Thanks again Stimpy ! Quote Link to comment Share on other sites More sharing options...
Stimpy Posted March 20, 2021 Report Share Posted March 20, 2021 I just found the 925 drawing, and it's midrange is also 200032. Quote Link to comment Share on other sites More sharing options...
lance G Posted March 20, 2021 Author Report Share Posted March 20, 2021 40 minutes ago, Stimpy said: I just found the 925 drawing, and it's midrange is also 200032. You are too kind ! Quote Link to comment Share on other sites More sharing options...
lance G Posted March 20, 2021 Author Report Share Posted March 20, 2021 Stimpy, interesting to see (item 7?) that the high range driver is 200029-1. Is that not the same as the AR9/AR90 (ferrofluid ?) drivers ? Probably not the right thing to do, but there is a potential to harvest these from 925's to keep the AR9/90's alive ? Quote Link to comment Share on other sites More sharing options...
Stimpy Posted March 20, 2021 Report Share Posted March 20, 2021 32 minutes ago, lance G said: Stimpy, interesting to see (item 7?) that the high range driver is 200029-1. Is that not the same as the AR9/AR90 (ferrofluid ?) drivers ? Probably not the right thing to do, but there is a potential to harvest these from 925's to keep the AR9/90's alive ? Yes, the 925s use the same tweeters as the 9s and 90s. The 200032 mid could also be used for 9/90s, too. So while 925s could be used as donor boxes, I'd hate to do that, as the 92/925 variants are worthy as well. But, as you say, if the sacrifice is necessary "to keep the AR9/90's alive", I suppose it's a necessary evil. Quote Link to comment Share on other sites More sharing options...
cd0nc Posted March 22, 2021 Report Share Posted March 22, 2021 Was my understand they had different amounts of ferrofluid in? So you could use a 92/925 in a 90/9 but not vice versa. Quote Link to comment Share on other sites More sharing options...
Stimpy Posted March 22, 2021 Report Share Posted March 22, 2021 12 hours ago, cd0nc said: Was my understand they had different amounts of ferrofluid in? So you could use a 92/925 in a 90/9 but not vice versa. Exactly correct. Quote Link to comment Share on other sites More sharing options...
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