Subwoofer is kaput: Golden ear subwoofer force field 5

[rwnano]

I have recently acquired this subwoofer

GoldenEar ForceField 5 Subwoofer Review - HomeTheaterHifi.com

GoldenEar ForceField 5 Subwoofer Review

hometheaterhifi.com

Which is kaput for some reason now:
Didn't see any surge Voltage subwoofer directly connected to the mains.
We usually don't have any surge Voltage in the condominium. So I wonder what happened?
Played it on Friday...kaput on Monday.

 

[mbhangui]

WIth the current attrocious voltage standard, you shouldn't be using any equipment without stabilizer. This is nothing to do with surge voltage. Check your subwoofer voltage rating near the power inlet. I'm sure the max voltage will be 245 volts. What you get in this country is voltage exceeding 240 volts. Yesterday it was was 253 volts in my house. I have lost few equipments before covid. In each of the case it was the power supply that got damaged. Ever since I have installed voltage stablizers in 2020, I haven't lost a single equipment. Current IEC standard for India is 240 +- 10 %. Before the covid it was 230 +- 5%. So for heaven's sake, don't run any equipment without stabilizer, regardless of what people tell you.

Check if there is a fuse. If yes, just replace the fuse. Most subwoofers run on SMPS. I have seen lot of power supply fail because the SMPS IC blows becuase of voltages exceeding 265 volts. Open your subwoofer and check for any visual indication of something burnt. Try to obtain the service manual from the internet for you model.

 

[rwnano]

WIth the current attrocious voltage standard, you shouldn't be using any equipment without stabilizer. This is nothing to do with surge voltage. Check your subwoofer voltage rating near the power inlet. I'm sure the max voltage will be 245 volts. What you get in this country is voltage exceeding 240 volts. Yesterday it was was 253 volts in my house. I have lost few equipments before covid. In each of the case it was the power supply that got damaged. Ever since I have installed voltage stablizers in 2020, I haven't lost a single equipment. Current IEC standard for India is 240 +- 10 %. Before the covid it was 230 +- 5%. So for heaven's sake, don't run any equipment without stabilizer, regardless of what people tell you.

Check if there is a fuse. If yes, just replace the fuse. Most subwoofers run on SMPS. I have seen lot of power supply fail because the SMPS IC blows becuase of voltages exceeding 265 volts. Open your subwoofer and check for any visual indication of something burnt. Try to obtain the service manual from the internet for you model.

Yes there is a fuse. Hopefully that's all that's gone.

 

[mbhangui]

Yes there is a fuse. Hopefully that's all that's gone.

If it a original fuse, let me know the marking on the fuse. Replace it with an exact specification. Even if it is not the fuse you should be able to either

1. Replace with a class D amp. Ask Ketan. He should be able to help you with that. He is also from your city.
2. Fix the power supply

There is also the possibility of the amp gone kaput, but subwoofer amp doesn't involve rocket science. In that case any amp with the same output of the current plate amp in your subwoofer will be fine.

EDIT: You can check if the fuse is gone just by checking it visually. A break in the wire or blackened glass indicates a burnt fuse. A multimeter will show break in continuity.