Specifications - JBL LSR28P Technical & Service Manual

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ACOUSTIC & ELECTRICAL SPECIFICATIONS
Power Consumption: 220W, (IEC 265) P
Power Capacity: High F 100W, Low F 250 W
Power Requirements: 115/230VAC, 50/60 Hz (user selectable)
Frequency Response: 50 Hz - 20 kHz (+1, -1.5db)
Sensitivity (XLR Input): +4dB, 96dB, @1 Meter
(1/4" Input): -10dB, 96dB, @ 1 Meter
(All DIP Switches Set Off) +4dBu Signal
Crossover Frequency: 1.7 kHz
Signal Input: XLR Balanced with pin 2 Hot @ 120k Ohm impedance
SYSTEM COMPONENTS
Cabinet Resonance Frequency: 38 Hz
Low Frequency Transducer
JBL #(218F) 203mm (8 in.) Cone
DC Resistance: 1.8-ohm ± 10%
Differential Drive, Dynamic Braking
High Frequency Transducer:
JBL# (053Ti)
DC Resistance: 3.5 ohm - 3.8 ohm
Amplifier:
Low Frequency: Class A-B Discrete
High Frequency: Class A-B, Monolithic
THD@ ½ Power: <0.05%
AURAL SWEEP TEST SPECIFICATIONS
(XLR Input All DIP Switches set default off)
System Aural Sweep Test: 1.5V Input, 20 Hz to 30 kHz
L.F. Aural Sweep Test: 7.0V Input, 20 Hz to 5 kHz
H.F. Aural Sweep Test: 1.5V Input, 200 Hz to 20 kHz
PHYSICAL SPECIFICATIONS
Enclosure Dimensions: 406mm x 330mm x 324mm D
(16.0 x 13.0 x 12.75 in. D)
Net Weight: 45 lbs. (20.5 kg.)

SPECIFICATIONS

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