Tascam MMR-8 Owner's Manual page 22

Electrical Ratings:
115 VAC @ 2A, 50-60Hz 230 W Max
-OR-
230 VAC @ 1A, 50-60Hz 230 W Max
Nominal temperature should be 41 to 95 degrees Fahrenheit (5 to 35 degrees Centigrade).
Relative humidity should be 30 to 90% (non-condensing)
Analog input/output is 12.28 VRMS Max
Weight is approximately 37 Pounds ( 16.78 Kilograms) with a hard disk loaded.
16 MMR-8 Tascam MMR-8 Owner's Manual • Chapter 1 • General Information