Architectural Specification
The 48 V DC external power supply shall power a maximum of two loudspeakers. The switched mode, regulated power supply shall also route up to two channels of balanced audio to the loudspeakers. Balanced audio shall be received from two XLR 3-pin female connectors or one 6-pin male Phoenix connector (not summing to the XLR inputs). Channel outputs shall be Phoenix 5-pin male and shall deliver both DC power and balanced audio to the loudspeakers on a single composite cable. Audio inputs shall be routed to corresponding channel outputs. Channel 1 may also be routed to both outputs selectable via a rear panel link switch.
Idle current draw for the unit shall be 0.14 A (115 V AC, 60 Hz); 0.07 A (230 V AC, 50 Hz); 0.15 A rms (100 V AC, 60 Hz).
Front panel LEDs shall provide feedback on output voltage, load current, and fuse status for each channel.
The unit shall be housed in an enclosure 1 RU in height, and half the width of standard 19-inch rack; dimensions shall be W: 8.5 in (216 mm) x H: 1.85 in (47 mm) x D: 8.62 in (219 mm). Height includes rubber feet. Height without feet shall be 1.66 in (42 mm). Weight shall be 4.4 lb (2 kg). The AC inlet shall be a powerCON 20 locking connector to prevent unwanted power disconnections.
The external power supply shall be the Meyer Sound MPS-482HP.