If you can find a IEC to AC power adapter, you can plug into a high current appliance like a refrigerator or air conditioner. It would burn-in much faster; you really need high current similar to your amp.
http://www.amazon.com/Parts-Express-Edison-Female-Adapter/dp/B0015V1GXS
http://www.amazon.com/Parts-Express-Edison-Female-Adapter/dp/B0015V1GXS