HQRP AC Adapter for Electro-Harmonix 44 Magnum 44W Guitar Power Amplifier US24DC-3000 Power Supply Cord Adaptor + Euro Plug Adapter HQRP&reg; Replacement AC Adapter plus HQRP&reg; Euro Plug Adapter; Input: 100V-240V AC; Output: DC 24V, 2A; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise; 100% Compatible with Original AC Power Adapter; 1 Year warranty!