Since i just mess around with amplifiers i have a new one hooked up to a battery charger and it will make wierd sounds and then cut off

Hey trevor

If its car amps yo messing with, you need to drop a car battery(even a suspect one will do it) across the charger as well to "tank" the ripple off the power from the charger. Even though the charger is DC, it is what we call unsmoothed, providing power that is like pulsed DC power. Most chargers are also not that high power and will sag when you crank up the amp. The battery will provide enough juice to carry the current drawer This is exactly what I use in the past for repairing high power amps on the bench. If you have any questions, happy to help you out. Cheers

regards
robotek