Aadams Posted July 16, 2018 Report Share Posted July 16, 2018 We seem to be at a low in topic generation. Given AR as the focus, the universe of topics is limited but this may be a new one in the sense that it has been hinted but never explicitly explored. Question: What is the likelihood of a ¾” AR3a, 5, or LST tweeter installed new in in 1974, which has worked without failure to today, is still operating to at least 80% of its designed output? Given that most 3a and 5 owners set the tweeter control to max, and according to Mr Allison flat response in the tweeter range requires an additional 5 db boost, it seems that any drop off from 100% performance would mean a TOTL classic AR does not sound at all they way it should. My conclusion: The likelihood is very low that 45 to 50 year old AR tweeters are even operating at 50%. This means if you want your 3as, LSTs or 5s to sound very near original you should have the tweeters rebuilt or install HIVIs. The route you choose really depends on budget and listening preferences. Feel free to change my mind. Adams Quote Link to comment Share on other sites More sharing options...
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