JBL LSR-4328P - Two-Way 8" Bi-Amplified Studio Monitor (Single)

Model #LSR4328P

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User Controls

Volume Control 0 dB to - ∞ dB
Secondary Functions: Increment/decrement value of selected function
Input Selection Analog (XLR / 1/4")
Presets 1-6 Factory/User plus NULL, Recall only
STORE possible using LSR4300 Control Center Software
High Frequency EQ Factory Default:
2 kHz Shelf , +/- 2 dB in 1/4 dB increments
104 corner frequencies between 1 and 20.2 kHz (Accessible via LSR4300 Control Center Software)
Low Frequency EQ Factory Default:
500 Hz Shelf +/- 2 dB in 1/4 dB increments
137 Corner Frequencies Between 19.7 Hz and 1 kHz (Accessible via LSR4300 Control Center Software)
Filters Range:
73x Frequencies (1/24th octave centers) between 20 to 160 Hz, with a variable Q from 1 (1.4 octave bandwidth) to 16 (1/11th octave bandwidth, and from 3 to 12 dB of attenuation)
Functions RMC: Start, Bypass
Front Panel ON
Rear Panel Input Sensitivity: +4 dBu / -10 dBV
8x Speaker ID DIP Switches: Left, Right, Center, Left Surround, Right Surround, Center Surround, Left Extra, Right Extra


Frequency Response 50 Hz to 20 kHz (+/- 1.5 dB)
Resonant Frequency (fs) 41 Hz
Low Frequency Extension -3 dB: 43 Hz to 22 kHz (User Controls Set to Default) -10 dB: 35 Hz to 32 kHz (User Controls Set to Default)
Crossover Digital Crossover: 2.2 kHz, 8th order LR LF/3rd Order BW HF
Distortion 96 dB SPL
1 m: Mid-High Frequency (200 Hz to 20 kHz)
2nd Harmonic: 3rd Harmonic:
Maximum SPL Measured Continuous: 106 dB @ 1 m
Measured Peak: 112 dB @ 1 m
Peak Per Pair: 118 dB SPL @ 1 m
Low Frequency Driver Diameter: 8" (203 mm)
Voice Coil: 2" (51 mm)
Cone Type: Polymer-Coated Paper Fiber
Magnet Type: Neodymium
Impedance: 8 Ω
High Frequency Driver Diameter: 1" (25 mm)
Voice Coil: 1" (25 mm)
Magnet Type: Neodymium (Shielded with Integral Heat Sink)
Diaphragm Type: Silk Dome
Waveguide: Elliptical Oblate Spheroidal
Impedance: 4 Ω


Analog Audio Input 1x XLR Input with Selectable +4/-10 dBV Level
1x 1/4" (6.35 mm) Balanced or Unbalanced TRS with Selectable +4/-10 dBV Level
Input Impedance XLR: 10 kΩ
1/4" TRS: 20 KΩ
A/D Conversion 96 kHz/24-Bit, 64x Over Sampling
Input Sensitivity Calibrated for XLR & 1/4" TRS:
+4 dBU: 94 dB SPL @ 1 m
-10 dBU: 94 dB SPL @ 1 m
Digital 1x AES/EBU (IEC60958) XLR Input
1x AES/EBU (IEC60958) XLR Output
1x S/PDIF (EIAJ CP1201) RCA Input
1x S/PDIF (EIAJ CP1201) RCA Output
1x 1/8" (3.5 mm) TRS RMC Microphone Input (+ 15 V)
Sample Rates Digital Input: 32, 44.1, 48, 88.2, 96 kHz (Tolerance: +/- 3 dB)
Word Length Digital Input: 24-Bit
Network Connection 1x RJ45 IN
1x RJ45 OUT
Network Protocol Proprietary Harman HiQnet Protocol using RS485
Computer Interface USB Type 1


Weight 32.5 lb (15 kg)
Display Front Panel: 31 LED Segments for dBFS and indication of settings
Front Panel Meter: -70 dBFS to 0 dBFS plus CLIP
Rear Panel Indicators: 5x LEDs indicate active input & digital stream selection
Construction 2x Flush-Mounted Handles
Enclosure: 0.75" (19 mm) MDF
Baffle: Injection-Molded Structural ABS
Mount Type 4x threaded mounting points conforming to industry standard square pattern, 4.25 x 2" (107.9 x 50.8 mm) center to center
M6 metric threads (Not for suspension)
Dimensions (WxHxD) 10.5 x 17.25 x 10.6" (267 x 438 x 269 mm)


Power Connector IEC
AC Input Voltage 115 VAC, 60 Hz (230 VAC, 50 Hz)
HF Amplifier Topology: Class A-B Monolithic
Sine Wave Power Rating: 70 W (THD + N:
LF Amplifier Topology: Class A-B Monolithic, Balanced
Sine Wave Power Rating: 150 W (THD + N:
Fuse 5 A, 250 VAC, Time Lag
2.5 A, 250 VAC, Time Lag
Maximum Current AC at Maximum Power Output (Audio):
120 VAC Line 2.2 A
230 VAC Line 1.1 A
Wattage Rating: AC at 1/8th Power IEC Pink Noise 60 W
Power Rating 1/8 Power: 18 W
Full Power: 58 W IEC Pink Noise (LF Channel Only, 100 Hours, 6dB Crest Factor)
Self-Generated Noise Level
Product Highlights
  • Bi-Amplified Power System
  • 8" Woofer with 150W of Output
  • 1" High-Frequency Driver with 70W Output
  • RMC System For Tuning Speakers to Room
  • Calibration Mic Included
  • Analog XLR & TRS Inputs
  • Digital AES/EBU & S/PDIF Inputs
  • Harman HiQnet for System Control
  • Built-In Digital EQ
  • Control Center Software Included
In The Box
  • JBL LSR-4328P - Two-Way 8" Bi-Amplified Nearfield Studio Monitor with RMC and Networking - Single
  • Power Cable
  • Wireless Remote Control
  • 2 x AA Batteries
  • LSR4300 Control Center Software
  • RMC Calibration Microphone and Mic Clip
  • USB Cable
  • 2 x Network Termination Plugs
  • 5-Year Warranty for Speakers, 3-Year Warranty for Amplifiers
Still Have Questions?
We can help via Live Chat, Email or you can call us 1-888-840-0464


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