I have to replace some capacitors on the power supply circuit board of my Aguilar AG500. It uses 4 Panasonic 15,000uf / 63v / +80 degree Celsius / 4 lead snap capacitors. What i want to know is this: Should i replace them with the exact same ones or could i consider a different/higher voltage/tolerance range to prevent them to fail again? I ask this because this amp head was designed in the U.S. using U.S. standards, but i live outside the U.S. (Latin America) and maybe the reason they went bad has something to do with the quality/consistency of the power grid here (the use of inverters is common here) so maybe different capacitors would protect my amp better, or prevent a future failure. Of course I'm no expert in electronics, and i do not intend to replace the capacitors myself... a qualified technician spotted the problem (two of the capacitors looks slightly "swollen") so right now I'm looking for replacement capacitors; just want to make sure i get the best replacements, given my particular situation. Maybe it is a silly question, but I'm just trying to prevent a similar problem in a short term.