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APPENDIX D: MPS-488 SPECIFICATIONS
NOTE: The MPS-488 was originally designed for use with the MM-4XP miniature loudspeaker. While the
MPS-488 can power up to eight MM-4XPs, it can only power up to four HMS-10s (because of the HMS-10’s
additional current draw).
MPS-488 Specifications
FRONT PANEL
LEDs Eight LEDs to indicate output voltage
Eight LEDs to indicate load current
REAR PANEL
Audio Inputs Eight channels of XLR female connectors with Link switches to route to outputs
Outputs MPS-488
P model includes eight channels of Phoenix 5-pin male connectors (three pins for bal-
anced audio, two pins for DC power); MPS-488
E model available with EN3 5-pin female connectors
Note: Because the MPS-488 can power a maximum of four HMS-10 loudspeakers, the HMS-10s
should only be connected to channel outputs 1, 3, 5, and 7. Do not use the even-numbered chan-
nel outputs.
Output Voltage Eight channels of 48 V DC (2.0 A, fuse protected)
AC POWER
AC Connector PowerCon
Voltage Selection Automatic
Safety Agency Rated
Operating Voltage
100–240 V AC; 50/60 Hz
Turn On/Turn Off Points 90–264 V AC; 50/60 Hz
Note: No automatic turn-off voltages. Voltages above 265 V AC are fuse protected but may cause
permanent damage to the power supply. Voltages below 90 V AC may result in intermittent opera-
tion.
Current Draw Note: For four HMS-10 loudspeakers (connected to channels 1, 3, 5, and 7).
Idle Current 1.16 A rms (115 V AC); 1.00 A rms (230 V AC); 1.26 A rms (100 V AC)
Maximum Long-Term
Continuous Current
3.92 A rms (115 V AC); 2.11 A rms (230 V AC); 4.48 A rms (100 V AC)
Burst Current 9.84 A rms (115 V AC); 5.40 A rms (230 V AC); 10.76 A rms (100 V AC)
Ultimate Short-Term
Peak Current
11.20 A peak (115 V AC); 6.60 A peak (230 V AC); 12.20 A peak (100 V AC)
Inrush Current 15.20 A peak (115 V AC); 9.36 A peak (230 V AC); 17.60 A peak (100 V AC)
PHYSICAL
Dimensions 1RU high
19.00” W x 1.73” H x 13.57” D
(482.60 mm x 43.94 mm x 348.78 mm)
Weight 15.5 lbs (6.6 kg)
ENVIRONMENTAL
Operating Temperature
0° C to +45° C
Non operating Temperature
<–40° C or >+75° C
Humidity
To 95% at 35° C
Operating Altitude
To 4600 m (15,000 ft)
