robotgrass Posted October 3, 2014 Share Posted October 3, 2014 Hello, I own two sets of Klipsh Heresy speakers for over 25 years, love them. Problem is I have had to replace the voice coil diaphragms on the K-77-M tweeters on a few occasions, I was wondering if it would make any sense to place a fuse between the crossover and tweeter as a protective measure, logic being it’s a lot cheaper to replace a fuse than the voice coil. If so what would you suggest the resistance be for this fuse? Cheers Montreal Quote Link to comment Share on other sites More sharing options...
mustang guy Posted October 3, 2014 Share Posted October 3, 2014 There is some good info in this thread: https://community.klipsch.com/index.php?/topic/149614-need-help-identifying-parts-for-crossover/ 2 Quote Link to comment Share on other sites More sharing options...
moray james Posted October 3, 2014 Share Posted October 3, 2014 a light bulb would be much more effective than a fuse much faster than a fuse and sounds better. Best regards Moray James 1 Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted October 3, 2014 Share Posted October 3, 2014 A subwoofer would be even more effective. Keeps the volume knob from roasting the highs while the ear searches the lows. 1 Quote Link to comment Share on other sites More sharing options...
djk Posted October 3, 2014 Share Posted October 3, 2014 "If so what would you suggest the resistance be for this fuse?" Change the crossover to 18dB/oct (like the Klipschorn, LaScala, etc) first, then add a 211-2 lightbulb. The driver is failing from mechanical damage from excessive excursion, not excessive heat. 1 Quote Link to comment Share on other sites More sharing options...
robotgrass Posted October 3, 2014 Author Share Posted October 3, 2014 Hi "If so what would you suggest the resistance be for this fuse?" Change the crossover to 18dB/oct (like the Klipschorn, LaScala, etc) first, then add a 211-2 lightbulb. The driver is failing from mechanical damage from excessive excursion, not excessive heat. Hi, do you mean changing the entire crossover unit or making a modification to the existing one? Thanks Quote Link to comment Share on other sites More sharing options...
djk Posted October 3, 2014 Share Posted October 3, 2014 Old type E networks can be modified to type AA for the tweeter, it's easy. The minimum required would be one 2µF and one 245µH per network. I would probably replace all the caps at that point, a total of 6 pieces of 2µF required. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.