Tom Bieri Posted April 12, 2019 Share Posted April 12, 2019 (edited) Last week I scored a pair of consecutive 1982 Heresy’s with very nice cabinets. I heard them briefly before the purchase and they sounded good. I finally hooked them up to tubes with great expectation and was happy until I turned the balance from center to left then right. The right speaker was flat while the left one was bright and sharp. I switched channels on the amp and the same speaker was flat. I took the backs off and everything looks good, there was a screw stuck on the magnet of the midrange but could not see where it had come from and suspect that is was simply lost inside the cabinet on assembly. Any suggestions on a good place to start for troubleshooting? IMG_0313.HEIC Hersey.pdf Edited April 12, 2019 by Tom Bieri Quote Link to comment Share on other sites More sharing options...
Tom Bieri Posted April 12, 2019 Author Share Posted April 12, 2019 IMG_0312.HEIC Quote Link to comment Share on other sites More sharing options...
glens Posted April 12, 2019 Share Posted April 12, 2019 My stock Android doesn't know the .heic file extension... Break and remake all screwed wire connections you can find, inside and out.. If that doesn't clear things up, and all the drivers are actually emitting sound, likely some capacitance gone astray. 1 Quote Link to comment Share on other sites More sharing options...
Budman Posted April 12, 2019 Share Posted April 12, 2019 did you put your ear up to the tweeter to make sure it works. same for the midrange and woofer you can stuff a towel in the mid horn to block off the sound to better hear if the tweeter is working got to be one of these not working Quote Link to comment Share on other sites More sharing options...
Tom Bieri Posted April 13, 2019 Author Share Posted April 13, 2019 Had a little more time today so I did a break and remake of all screws and low and behold I found a home for the floating screw 😀 after going through all the screws on both speakers I connected them and they sound perfect! Thanks for the info here are a few more pictures. My Heresy .pdf Quote Link to comment Share on other sites More sharing options...
Deang Posted April 13, 2019 Share Posted April 13, 2019 Nm Quote Link to comment Share on other sites More sharing options...
JohnA Posted April 16, 2019 Share Posted April 16, 2019 1982 Heresy 1.5s. What does flat mean to you? To us it is the goal of every speaker. Quote Link to comment Share on other sites More sharing options...
Panelhead Posted April 16, 2019 Share Posted April 16, 2019 One tip, take a screw and go to Home Depot, Lowe’s, or even better a True Value or local hardware store. Replace all those steel screws with brass screws. Steel has no place being in the signal path. Quote Link to comment Share on other sites More sharing options...
glens Posted April 16, 2019 Share Posted April 16, 2019 2 hours ago, JohnA said: What does flat mean to you? To us it is the goal of every speaker. I took it as per his comparison. "Flat" is not "bright and sharp," i.e. "muted highs." Quote Link to comment Share on other sites More sharing options...
windashine Posted April 16, 2019 Share Posted April 16, 2019 … o O (--------).. Quote Link to comment Share on other sites More sharing options...
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