Active Bass burnt out Preamp?

[Baker69]

Without knowing specifically what's involved with this test, it sounds like a distinct possibility. So they actually "test" each item, not just electrical wiring in the facility? It wouldn't take much for a clueless technician to destroy your amp thinking they were "testing" a connection from the input ground to chassis ground.

I've seen simple tests done on PC's which were pretty much inserting the mains plug into a device, but I think you're right in the sort of test they may have carried out. I'm assuming they must test a multitude of electrical items in their role and if their "machine" was previously set for testing something that required a relatively quite high level of voltage and they forgot to adjust it and tested my amp first?

I've also seen on the net reports of PAT testing destroying some Computers so there does seem to be some potential risk with it.

 

[el murdoque]

If your Bass did that, you don't need to worry. With that kind of output there's no need for an amp. Just plug it straight into the cab and you're fine ;-)

 

[bobcruz]

Another twist in the tale that has come to light is that between the time I last used the bass amp when it was working fine and the time I went to use it and discovered that it wasn't working was during that time all the electrical items in church were PAT Tested (don't know whether you have this or a similar test system in the US but here in the UK it is a statutory requirement in many places).

One of the guys has suggested that the Tester may have inadvertently put a large current through the input socket of the amp in doing an earth bond test instead of putting a very small current through it?

This is the obvious culprit, and the tester owes the church for the repair. Best look around for any other equipment the tester may have ruined.