Connexelectronic (PCBStuff) SMPS600RS 48V, 115V 
Input: 115V
Output: 48V (+-10%), continuous 600W, peak 720W, 
 
The Connexelectronic SMPS is newest generation SMPS and benefits from a small form factor, low weight and a high efficiency (up to 95.6%).
It can output 600W continous and 720W peak power, and can be adjusted +- 10% from its stock voltage. It also features a auxiliary power output which outputs around 10.5-13V, (proportional to main output voltage, 2/5 for 28V version (28V/5*2=11.2V) and 2/7 for 38V version(38/7*2=10.9) . The max. continuous current for the aux output should not exceed 500ma, and the total capacitance of the circuits connected to the aux output should not exceed 2200uF (otherwise the fuses might blow).
Download manual here:

http://hifimediy.com/download/SMPS600RS.pdf

Technical info:
Single output, 28V, 38V, 48V or 72V high-current output plus an auxiliary 15V 500mA regulated voltage output. Half Bridge resonant SMPS capable of delivering 600W continuous and up to 720W peak power with crest factor at least 2.5. The stock available output voltages are adjustable within 26V to 40V for the 38V version, 36V to 40V range for 38V version, 46 to 50V for the 48V version and 69 to 75V for the 72V version. It uses zero-voltage switching half bridge resonant topology. The main advantage is lower size and cost compared with a similar regulated SMPS and better efficiency, up to 94% compared with the regulated SMPS's due to the fact that the transistors are soft-switched, and the current through the switches has sinusoidal shape, and there are no output inductors. The SMPS features overcurrent protection which limit the output current at about 130% of the maximum peak power, about 700W. This power supply is suitable for amplifiers, which requires single high-current supply in range of 26V to 75V. On request, different output voltages are possible, within 20V to 120V interval, please use the "on request" option and leave a note regarding the desired output voltage.
 
Buyer has to take care of all import tax/custom fees.
It will be shipped 3-5 days after received payment.