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APPENDIX D: UP-4XP SPECIFICATIONS
UP-4XP Specifications
ACOUSTICAL
Operating Frequency Range 66 Hz – 18 kHz
Note: Recommended maximum operating frequency range. Response depends on loading condi-
tions and room acoustics.
Frequency Response 72 Hz – 17.5 kHz ±4 dB
Note: Measured free-field with pink noise at 1 meter, 1/3rd octave resolution.
Maximum Peak SPL 121 dB
Note: Measured free-field with music, referred to 1 meter.
Dynamic Range > 105 dB
Note: Taken from peak SPL, referred to A-wtd noise floor.
Phase Response 360 Hz – 12 kHz ±45°
Coverage 100° symmetrical
Acoustical Crossover 1.5 kHz
Note: At this frequency, the transducers produce equal sound pressure levels.
TRANSDUCERS
Low Frequency Two 4" low-frequency cone driver
High Frequency One 1" metal dome tweeter
CONNECTOR
Audio/Power Connector Phoenix 5-pin male or EN3 5-pin male
(3 pins for balanced audio, 2 pins for DC power)
Power Wiring Pin 1: 48 V DC –
Pin 2: 48 V DC +
Audio Wiring Pin 3: Chassis/earth through 220 k, 1000 pF, 15 V clamp network to provide virtual ground lift at
audio frequencies
Pin 4: Signal –
Pin 5: Signal +
AUDIO INPUT
Type Differential, electronically balanced
Maximum Common Mode Range ±5 V DC
Input Impedance 10 k differential between pins 4 (–) and 5 (+)
DC Blocking Differential DC blocking up to the maximum common mode voltage
CMRR >50 dB, typically 80 dB (50 Hz – 500 Hz)
RF Filter Common mode: 425 kHz
Differential mode: 142 kHz
TIM Filter <80 kHz, integral to signal processing
Nominal Input Sensitivity –2.0 dBV (0.80 V rms, 1.12 V peak) continuous average is typically the onset of limiting for noise
and music
Input Level Audio source must be capable of producing +16 dBV (6.3 V rms, 9.0 V peak) into 600 to produce
the maximum peak SPL over the operating bandwidth of the loudspeaker
AMPLIFIER
Amplifier Type Three-channel (class D)
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