Dudeisms Posted December 11, 2020 Share Posted December 11, 2020 Hi there. I bought a pair of ‘77 La Scalas. All in all they sound great, but there is a distortion gremlin hiding somewhere that only shows up in particular songs. When I use test tones I cannot reproduce the distortion gremlin. I am trying to figure out if its the tweeter or squawker. Is there any issue if momentarily I unscrew the squawkers with zero issues from my ‘83 Cornwalls and briefly place them in the La Scalas to try to ascertain if the LS mid drivers are the issue? Thanks in advance Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
joessportster Posted December 11, 2020 Share Posted December 11, 2020 that should not hurt anything Joe Quote Link to comment Share on other sites More sharing options...
Dudeisms Posted December 11, 2020 Author Share Posted December 11, 2020 Correction turns out I have a k-51-v in my ‘83 Cornwalls.... can I use that in my La Scala momentarily to see if my issue is indeed the squawker? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted December 11, 2020 Share Posted December 11, 2020 Find a section of a song where the issue happens. Cover the tweeter or squawker with a wadded up towel and see if the noise goes away. I'm assuming it's only one speaker correct? You can also swap drivers and horns side to side and see which one the problem follows. Quote Link to comment Share on other sites More sharing options...
Dudeisms Posted December 11, 2020 Author Share Posted December 11, 2020 Just now, CECAA850 said: Find a section of a song where the issue happens. Cover the tweeter or squawker with a wadded up towel and see if the noise goes away. I'm assuming it's only one speaker correct? You can also swap drivers and horns side to side and see which one the problem follows. Open to suggestions. I have located a second of a song that does it. It’s hard to tell if it’s just one or both speakers ... and the ‘77 LS have that stapled on screen so I can’t really get to the horns like normal from the front. I could however try swapping the k77’s Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted December 11, 2020 Share Posted December 11, 2020 Just now, Dudeisms said: Open to suggestions. I have located a second of a song that does it. It’s hard to tell if it’s just one or both speakers ... and the ‘77 LS have that stapled on screen so I can’t really get to the horns like normal from the front. I could however try swapping the k77’s Play one speaker at a time and isolate which speaker it's coming from. Play only that speaker and try the towel over the grill to block the sound of the individual drivers. You can also use a paper towel tube to your ear to see if you can isolate it. Quote Link to comment Share on other sites More sharing options...
MookieStl Posted December 11, 2020 Share Posted December 11, 2020 Which squawker driver does it have? If 55M, it might be a loose plate on the back of the magnet. It drove me nuts trying to find it on a set of Belles and once fixed it was wonderful. Quote Link to comment Share on other sites More sharing options...
Dudeisms Posted December 11, 2020 Author Share Posted December 11, 2020 3 minutes ago, MookieStl said: Which squawker driver does it have? If 55M, it might be a loose plate on the back of the magnet. It drove me nuts trying to find it on a set of Belles and once fixed it was wonderful. K-55-v in my LS Quote Link to comment Share on other sites More sharing options...
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