Is my amp dead for good?

[Old Garage-Bander]

Kenya.

Or even in the USA?
Do any power companies guarantee against damage to to power surges, even if cause d by the company?
Has anyone ever gotten paid back for equipment damaged by the power company shooting an over-voltage down the line?

 

[beans-on-toast]

Thanks for all your input!
I have tried different cables to amp and speaker, no change. I don't have any other speaker to test with. What I haven't done yet is using another bass, I will report back when I tested with another one on Monday. .
Like I said, as far as the controls go, every pot and switch, TonePrint and tuner works just fine. And despite the apparent loss of power there is still plenty for my needs, I guess I just keep on using it.

Do the thing with cycling the headphone output jack that I mentioned above. It may not be the cause of your problem but it’s a simple potential issue that you can easily rule out.

 

[agedhorse]

Or even in the USA?
Do any power companies guarantee against damage to to power surges, even if cause d by the company?
Has anyone ever gotten paid back for equipment damaged by the power company shooting an over-voltage down the line?

Yes, I had a long time theatre client with a theatre we did the electrical engineering on, plus handled the entire AV installation. During some work on the distribution grid, a distribution transformer was installed that had a rated primary voltage that was 1/2 of the actual distribution lines in that area. (something like a 6kV delta rather than a 12kV delta primary). While the secondary was correct (120/208V Wye), when this transformer was energized, the effective output was 480/277V Wye) and of course all of the connected electronics that were connected and on-line failed from an over-voltage condition. Ironically, the primary of the transformer was able to support the incorrect voltage until it was (fairly quickly) discovered that there were some "problems" within the attached buildings. The fire alarms began to transmit trouble signals to the monitoring company (from their back-up battery supply) when the AC power supplies failed, lighting fixtures smoked ballasts, the theatrical lighting system controls (sync generators) failed, some audio equipment failed, other building and HVAC systems, POS system, etc.

This was about 5 years after the building remodel was completed, the client was such a great client that the general and every sub that had worked on the theatre originally job came back and put Humpty Dumpty" back together again and the job was all finished 3 or 4 days later. I just had dinner with this client last month, he's 92 years old now (retired electrical engineer) and we had just remembered this crazy experience. Yes, the utility covered EVERYTHING needed to get the theatre back up and running, gave the client no trouble at all.

 

[delta7fred]

Has anyone ever gotten paid back for equipment damaged by the power company shooting an over-voltage down the line?

A few years ago my sister had a fault with their incoming power, IIRC it was caused by a fault in a pole mounted transformer.

The power company (in the UK) replaced everything that blew up (almost everything that was switched on at the time) and gave them a couple of big boxes of light bulbs.

When the light bulbs started glowing bright white and popping my brother in law realised that the voltage was high so switched on their old knackered out electric oven, which lasted a few seconds. They were looking at replacing it anyway.

 

[Old Garage-Bander]

A few years ago my sister had a fault with their incoming power, IIRC it was caused by a fault in a pole mounted transformer.

The power company (in the UK) replaced everything that blew up (almost everything that was switched on at the time) and gave them a couple of big boxes of light bulbs.

When the light bulbs started glowing bright white and popping my brother in law realised that the voltage was high so switched on their old knackered out electric oven, which lasted a few seconds. They were looking at replacing it anyway.

Thanks. Good to know.

Not sure how that would work here in the US.
Of course we have hundreds if not thousands of individual utility companies and each might be different.

Here, the Ut's like to have you lease whole house surge protectors.
I'm not sure if the implication is that these will protect everything and tough toenails if you don't have one.
Or if because you have one the Ut's don't have to fix anything.
Or if you do have one it also carries a guarantee that your stuff is still covered anyway.

Sure a large scale event where there was an obvious mistake and multiple business' were hit seems like a no brainier. But what about one customer? How do they normally fare vs the Ut's?

 

[subdude67]

Just got back from rehersal, the amp is fine, it was the bass! Plugged in the one I brought along, all settings as remembered and everything went back to normal, full volume response, nice full sould on 9 o'clock, happy day!
Now off to see what's bugging that bass.....

Thanks again for all your contributions, may this thread now be buried with the feet chopped off so that its ghost cannot walk!

 

[Old Garage-Bander]

Just got back from rehersal, the amp is fine, it was the bass! Plugged in the one I brought along, all settings as remembered and everything went back to normal, full volume response, nice full sould on 9 o'clock, happy day!
Now off to see what's bugging that bass.....

Thanks again for all your contributions, may this thread now be buried with the feet chopped off so that its ghost cannot walk!