| Input Characteristics | 
| Balanced with Ground | Three terminal barrier block connector 20k ohm differential | 
| Gain | Voltage Mode | 20 volts/volt | 
| Current Mode | 20 amperes/volt | 
| Residual Noise | Less than 1 millivolt RMS | 
| Slew Rate | 40 volts per microsecond | 
| Display, Control, Status | 
| Front Panel | 
| LED Displays indicate | Ready, Standby, High AC Mains, High Temperature, Signal Overload, and Fault conditions in the output stage | 
| Slide Switches for | Run/Standby, LED Indicator Reset | 
| Protection | 
| Over/Under Voltage | ± 10% from specified supply voltage amplifier is forced to Standby | 
| Over Current | Breaker protection on both main power and low voltage supplies | 
| Over Temperature | Separate Output transistor, heat sink, and transformer
temperature monitoring and protection | 
| Physical Characteristics | 
| Chassis | All aluminum construction designed for stand-alone or rack-mounted operation; with sliver front panel and
black chassis; the amplifier occupies six EIA 19-inch-wide rack units | 
| Weight | 128 lbs. (57.9 kg) | 
| AC Power | Three-phase, 208 VAC ±10%, 47-60 Hz, 20A AC service; 400 VAC ±10%, 47-60 Hz, 10A AC service version available on request | 
| Operating Temperature | 10°C to 50°C (50°F to 122°F), Maximum Output Power de-rated above 30°C (86°F) | 
| Humidity | 70% or less, non-condensing | 
| Cooling | Internal fans forced air, 300 cfm | 
| Dimensions (W x D x H) | 19 in. x 22.37 in. x 10.5 in. (48.3 cm x 56.8 cm x 26.7 cm) |