RickD Posted August 29, 2023 Share Posted August 29, 2023 Last night I had a power surge that was too much for my APC uninterruptable power supply/ surge protector. As a result my 1.25 amp 1.25" glass fuse was blown on both woofers. Since Radio Shack no longer exists does anyone know where I can buy these fuses? Also I'll be looking for better protection for my system and am open for suggestions. Thank-you all. 1 Quote Link to comment Share on other sites More sharing options...
wuzzzer Posted August 29, 2023 Share Posted August 29, 2023 Amazon should have any fuse you’ll ever need. 1 Quote Link to comment Share on other sites More sharing options...
RickD Posted August 29, 2023 Author Share Posted August 29, 2023 5 minutes ago, wuzzzer said: Amazon should have any fuse you’ll ever need. I'll probably go through withdrawal waiting for them. Thanks, RD Quote Link to comment Share on other sites More sharing options...
OO1 Posted August 29, 2023 Share Posted August 29, 2023 Take em out Quote Link to comment Share on other sites More sharing options...
henry4841 Posted August 29, 2023 Share Posted August 29, 2023 Since you did not say what kind of speakers you have I am going to assume Klipsch. On my LaScala's I use a 1 amp quick blow which is readily available on Amazon among other sources. A 1.25 amp fuse is a specialty fuse that can be hard to find and over priced. I believe you are correct that Klipsch did recommend a 1.25amp fuse in their instructions when I bought my speakers but I have never had a problem blowing a 1 amp fast blow myself. Works fine. I would not operate my speakers without having them fused. Fuses are much cheaper than drivers or bass speakers. Quote Link to comment Share on other sites More sharing options...
Khornukopia Posted August 29, 2023 Share Posted August 29, 2023 3 hours ago, RickD said: does anyone know where I can buy these fuses? Auto parts store should have suitable fuses. They don't need to be exact, considering that most loudspeakers don't even have fuses. 1 Quote Link to comment Share on other sites More sharing options...
rmlowz Posted August 29, 2023 Share Posted August 29, 2023 Furman Elite for the surge protector. It has been great. We have a lot of power outages-surges here in this part of TN. 1 Quote Link to comment Share on other sites More sharing options...
Peter P. Posted August 29, 2023 Share Posted August 29, 2023 Newark Electronics has them. Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted August 29, 2023 Share Posted August 29, 2023 7 hours ago, RickD said: I'll probably go through withdrawal waiting for them. Thanks, RD Foil always works. 😀 Quote Link to comment Share on other sites More sharing options...
Marvel Posted August 31, 2023 Share Posted August 31, 2023 As already mentioned, and auto parts store should do. There are some Grainger stores towards Alpharetta, too. Try calling them, they should have what you want in stock. Even Lowes or HD. 1 Quote Link to comment Share on other sites More sharing options...
RickD Posted August 31, 2023 Author Share Posted August 31, 2023 Auto Parts didn't have them. And foil, that would probably go up in smoke. I got them on Amazon. Next day delivery. Unfortunately the fuse replacement didn't work. Woofers are still not barking. I think I have a cross over malfunction. I've got ALK's Extreme Slope cross-over networks and in his documentation he mentioned a socket mounted fuse rated at 1.5 amps. I don't see a fuse on any of the three boards. The only fuse is the 1.25 amp fuse on the back of the cabinet. I sent Al Klappenberger an email, hope he replies, because I don't know how to troubleshoot his cross-overs. My amp and dac work. Quote Link to comment Share on other sites More sharing options...
RickD Posted August 31, 2023 Author Share Posted August 31, 2023 On 8/29/2023 at 4:02 PM, Khornukopia said: Auto parts store should have suitable fuses. They don't need to be exact, considering that most loudspeakers don't even have fuses. Found them on Amazon, auto parts store didn't have 1.25 amp fuses. New fuses didn't get the woofers working. I'll need to fix the cross-overs. They are Al Ks Extreme Slope cross overs. Quote Link to comment Share on other sites More sharing options...
babadono Posted August 31, 2023 Share Posted August 31, 2023 Fuse on woofer board from ALK ENG. Do you see it @RickD? Right on top of the 68uF Cap Quote Link to comment Share on other sites More sharing options...
babadono Posted August 31, 2023 Share Posted August 31, 2023 If it's not there somebody took it out. Mine definitely has one. Quote Link to comment Share on other sites More sharing options...
babadono Posted August 31, 2023 Share Posted August 31, 2023 Never understood what it is protecting? P = I2R so 1.25^2 x4 =6.25. Limiting power to woofer to 6.25 watts. Why? Quote Link to comment Share on other sites More sharing options...
OO1 Posted August 31, 2023 Share Posted August 31, 2023 VC of the woofers ? Quote Link to comment Share on other sites More sharing options...
Peter P. Posted September 1, 2023 Share Posted September 1, 2023 On 8/29/2023 at 7:58 PM, the real Duke Spinner said: Foil always works. 😀 So do pennies! 1 Quote Link to comment Share on other sites More sharing options...
RickD Posted September 2, 2023 Author Share Posted September 2, 2023 On 8/31/2023 at 8:05 PM, Peter P. said: So do pennies! Al K. sent my an email today and said to swap out the 1.25 amp fuses on the back of the Khorns for 5 amps. Foil won't work, guess I'll have to use pennies. Old ones made of copper. Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted September 2, 2023 Share Posted September 2, 2023 11 minutes ago, RickD said: I'll have to use pennies. Old ones made of copper. Pre 1971 Or It could negatively affect the Sound Quote Link to comment Share on other sites More sharing options...
RickD Posted September 2, 2023 Author Share Posted September 2, 2023 Al said he quit using fuses on the woofer board, which is why I couldn't find it. I tested the woofers for continuity (good), but not for shorts. All the point to point wiring tests good, so the coils are ok. On 8/31/2023 at 7:02 PM, babadono said: If it's not there somebody took it out. Mine definitely has one. Quote Link to comment Share on other sites More sharing options...
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