Mission 720 Posted September 14, 2023 Report Share Posted September 14, 2023 Hi all. I've recently picked up a pair of AR55BX speakers in great condition. Unfortunately the original bass drivers have been replaced with some generic drivers, the originals had foam rot and were thrown away by the previous owner 😞 My question is what are the original AR and replacement Tonegen part codes, and in which other AR loudspeakers were these bass drivers used? Many thanks in advance! Quote Link to comment Share on other sites More sharing options...
dxho Posted September 14, 2023 Report Share Posted September 14, 2023 Looks like some helpful information in this thread. Quote Link to comment Share on other sites More sharing options...
Aadams Posted September 14, 2023 Report Share Posted September 14, 2023 Check this link. Page 28 http://www.classicspeakerpages.net/library/acoustic_research/original_models_1954-1974/original_models_schematicss/restoring_the_ar-3a/restoring_the_ar-3a_full_pd.pdf Quote Link to comment Share on other sites More sharing options...
genek Posted September 15, 2023 Report Share Posted September 15, 2023 P/N 210074-0 in the 1986 AR parts list. The 10" poly cone woofer was used in the Post-Classic B and TSW series. Quote Link to comment Share on other sites More sharing options...
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