The audio input shall be electronically balanced with a 10‑kOhm
impedance and accept a nominal –2.0 dBV (0.8 V rms, 1.1 V
peak) input signal. Connectors shall be XLR female for input and
XLR male for loop output. DC blocking and RF filtering shall be
provided, and CMRR shall be greater than 50 dB and typically
80 dB (50 Hz to 500 Hz).
Power requirements shall be nominal 100 V, 110 V, or 230 V AC line current at 50–60 Hz. UL and CE operating voltage ranges shall be 100 to 240 V AC. AC power connectors shall be
powerCon 20 with looping output. Current draw during burst (< 1 sec) shall be 0.9 A rms at 115 V, 0.4 A rms at 230 V AC, and
1.1 A peak at 100 V AC; current inrush during turn‑on shall not exceed 4.0 A rms at 115 V AC, 2.4 A rms at 230 V AC, and 4.0 A peak at 100 V AC.
Dimensions shall be 19 inches wide x 11 inches high x 12 inches deep (482 mm x 279 mm x 305 mm). Weight shall be 28.2 lbs (12.79 kg).