Mystery Posted December 6, 2021 Share Posted December 6, 2021 Picked up these from local ad today but can't find any info online. I see RB-81 ii but no iv. Thanks for any info and their worth. Here's back of the speakers. Quote Link to comment Share on other sites More sharing options...
jjptkd Posted December 6, 2021 Share Posted December 6, 2021 Don't think they're a lot different than the 81-II's https://2d73e25b29782b6d6766-9c8af5cbfef16739445bc76457060528.ssl.cf2.rackcdn.com/RB81_635042118972920000.pdf https://2d73e25b29782b6d6766-9c8af5cbfef16739445bc76457060528.ssl.cf2.rackcdn.com/RB81IIcutsheet_635042118979170000.pdf Quote Link to comment Share on other sites More sharing options...
Mystery Posted December 6, 2021 Author Share Posted December 6, 2021 39 minutes ago, jjptkd said: Don't think they're a lot different than the 81-II's https://2d73e25b29782b6d6766-9c8af5cbfef16739445bc76457060528.ssl.cf2.rackcdn.com/RB81_635042118972920000.pdf https://2d73e25b29782b6d6766-9c8af5cbfef16739445bc76457060528.ssl.cf2.rackcdn.com/RB81IIcutsheet_635042118979170000.pdf Thanks. So the first one that doesn't say any version is the IV one? It's weird that Klipsch site doesn't mention IV. I also have a pair of Ref IV RB61 that I can't find any info either. From the versions, I guess IV is newer than II right? Quote Link to comment Share on other sites More sharing options...
wuzzzer Posted December 6, 2021 Share Posted December 6, 2021 50 minutes ago, Mystery said: From the versions, I guess IV is newer than II right? No. It was confusing, they were from the 4th generation of reference speakers from Klipsch. So, a 'Ref IV RB-81' is an original RB-81. 2 Quote Link to comment Share on other sites More sharing options...
jjptkd Posted December 6, 2021 Share Posted December 6, 2021 10 hours ago, Mystery said: Thanks. So the first one that doesn't say any version is the IV one? It's weird that Klipsch site doesn't mention IV. I also have a pair of Ref IV RB61 that I can't find any info either. From the versions, I guess IV is newer than II right? Wuzzer is correct above the original 81's (Ref IV) were the 4th version of that Reference bookshelf speaker after the RB-5, RB-75 and RB-35? but the first of the 81's so the 81-II's are newer than the Ref IV 81's. 1 Quote Link to comment Share on other sites More sharing options...
Mystery Posted December 6, 2021 Author Share Posted December 6, 2021 They were hanged in a business with big screws on top. One grill missing and one woofer has deep scratch that made the dust cap fall off when I touched. For regular fabric type dust cap, I use Aleene's tacky glue. This one feels metallic. Is it okay to use the same glue or something else? All do work and got them fairly cheap so no complain. Quote Link to comment Share on other sites More sharing options...
willland Posted December 6, 2021 Share Posted December 6, 2021 19 hours ago, Mystery said: From the versions, I guess IV is newer than II right? No. Reference IV series introduced the RB-81. Bill 1 Quote Link to comment Share on other sites More sharing options...
dtr20 Posted December 8, 2021 Share Posted December 8, 2021 They are great sounding bookshelf speakers 1 Quote Link to comment Share on other sites More sharing options...
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