I bought a guitar amp Line 6 Spider III 30W in the US last week. I live in Asia where the power supply is 220v 53Hz. I was wondering which is the best 220v to 110v transformer I can use to use this gear here in Asia? I am afraid to lose my 199 USD investment due to a electrical problem.
Transformers are pretty much a commodity item. If your 220 supply is stable, just about any transformer will do. Get one in a case with a power switch and a fuse, which is really all the protection you need. If your electrical supply is erratic you'll have to think more carefully. A 100-watt transformer is more than enough for a 30-watt amp. You could probably get away with a 50-watt transformer, but the higher rating will ensure that it runs cool and lasts a long time.
