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APPENDIX C: UPJUNIOR SPECIFICATIONS
RF Filter
Common mode: 425 kHz
Differential mode: 142 kHz
TIM Filter
<80 kHz, integral to signal processing
Nominal Input Sensi-
0 dBV (1 V rms, 1.4 V peak) continuous average is typically the onset of limiting for
tivity
noise and music
Audio source must be capable of producing +20 dBV (10 V rms, 14 V peak) into 600 Ω
Input Level
to produce maximum peak SPL over the operating bandwidth of the loudspeaker
AMPLIFIER
Type
Two-channel complementary MOSFET output stages (class AB/bridged)
Output Power
300 W total
Note: Wattage rating is based on the maximum unclipped burst sine-wave rms volt-
age the amplifier will produce into the nominal load impedance — low and high chan-
nels 30 V rms (42 V peak) into load impedance.
THD, IM TIM
<.02%
4 Ω low channel, 12 Ω high channel
Load Capacity
Cooling
Forced air cooling over amplifier heatsink
AC POWER
Connectors
PowerCon with looping output
Voltage Selection
Automatic
Safety Agency Rated
100–240 V AC; 50/60 Hz
Operating Voltage
Turn On/Turn Off
90–264 V AC; 50/60 Hz
Points
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 operation.
Current Draw
Idle Current
0.448 A rms (115 V AC); 0.285 A rms (230 V AC); 0.497 A rms (100 V AC)
Maximum Long-Term
2.55 A rms (115 V AC); 1.55 A rms (230 V AC); 2.75 A rms (100 V AC)
Continuous Current
Burst Current
2.9 A rms (115 V AC); 1.7 A rms (230 V AC); 3.2 A rms (100 V AC)
Ultimate Short-Term
12.0 A peak (115 V AC); 9.0 A peak (230 V AC); 13.0 A peak (100 V AC)
Peak Current
Inrush Current
15.0 A peak (115 V AC); 13.0 A peak (230 V AC); 15.0 A peak (100 V AC)
Note: Current draw for a single loudspeaker. Loop output not used.
PHYSICAL
Enclosure
Premium birch plywood
Finish
Black textured
Protective Grille
Powder-coated hex stamped steel
Rigging
QuickFly rigging options
Dimensions
9.00" W x 19.04" H x 10.20" D (228.60 mm x 483.55 mm x 259.08 mm)
Weight
28.00 lbs (12.70 kg)
40
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