JBL LSR-4328P Linear Spatial Reference Bi-amplified Studio Monitor with RMC and Networking

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About the JBL LSR-4328P

The JBL LSR4328P is a robust (32.5 lbs.), bi-amplified, 2-way studio monitor speaker, housed in a sturdy, handsome cabinet with a dark graphite finish and a carefully damped and baffled interior. The 8" Neodymium woofer and Waveguide-controlled 1" silk dome tweeter are powered by 150 and 70 watt amplifiers, respectively.

The LSR4328P features a uniquely ambitious front and rear panel set of tune and tone controls that borders on the fanatical in sheer statistical density. Recording and mixing in some strange and wonderful places and these places may foster and nurture the creative spirit, but for critical listening these places often need sound treatment and it doesn't get done and that is why JBL has stocked the LSR4328P with knobs, switches and a remote control - to help us get good mixes in poor acoustic environments.

Now, all of this compensation for room modes, nodes and standing waves, in bright, boomy, dull, fluttery, boxy, cavernous rooms and all the other environmental acoustic aberrations that can make mixing a sad experience, does not come cheaply. But, the LSR4328P is designed very much for an age where a lot of music is recorded outside of the "proper" recording studio and this speaker provides a certain reassurance that no matter where and how strange, the space you're working in really is, you can fix it in the mix.

JBL LSR-4328P Includes

  • JBL LSR-4328P Linear Spatial Reference Bi-amplified Studio Monitor
  • 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
  • JBL Warranty

JBL LSR-4328P Features

  • Integrated mounting points allow wall mounting for greater placement options
  • Custom designed, self-shielded transducers with neodymium motor structures for exceptional transient response and superb power handling
  • Front panel output meter with variable brightness displays signal level
  • Bi-amplified design eliminates the need for external amplification
  • Balanced analog input with selectable +4dBu / -10 dBV sensitivity
  • AES/EBU, S/PDIF digital inputs
  • Wireless remote control and LSR4328P Control Center Software enable control from the listening position
  • Harman HiQnet Network Protocol enables system-wide control of level, EQ, input selection, solo and more
  • Automated RMC Room Mode Correction system with calibration microphone measures and automatically compensates for low frequency standing waves and boundary conditions
  • Advanced LSR Linear Spatial Reference Design provides neutral off-axis response for greater clarity at the mix position
  • Built-in handles facilitate optimum positioning
  • Low and High Frequency Equalization with factory presets allows tailoring of response to preference, or acoustic conditions in the room

JBL LSR-4328P Specifications

HF EQ Factory Default: 2kHz Shelf, +/- 2dB in _ dB increments 104 corner frequencies between 1kHz and 20.2 kHz accessible via LSR4300 Control Center Software
LF EQ: Factory Default 500 Hz Shelf, +/- 2dB in _ dB increments
137 corner frequencies between 19.7 Hz and 1kHz accessible via LSR4300 Control Center Software
RMC Filter Range 73 Frequencies (1/24th octave centers) between 20 Hz 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.
RMC Functions Start, Bypass
Front Panel Controls ON, SOLO, RMC, EQ ON, LF, HF, PRESET, INPUT, +/-
Computer Interface USB Type 1
Network Protocol Proprietary Harman HiQNet Protocol using RS485
Network Connection RJ45 IN, RJ45 OUT
RMC Microphone Input 1/8" tip-ring-sleeve; powered +15 Volts on tip
Digital Input Word Length 24 Bit
Digital Input Sample Rates 96k Hz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz.
Tolerance: +/- 3%
Digital: RCA OUT S/PDIF (EIAJ CP1201)
Digital: RCA IN S/PDIF, (EIAJ CP1201)
Digital: XLR Out AES/EBU(IEC60958)
Digital: XLR IN AES/EBU(IEC60958)
Analog: Calibrated Input Sensitivity, Analog XLR 1/4": +4 dBu: 94 dB SPL / 1 m
-10 dBV: 94 dB SPL / 1 m
Analog: AD Converters 96kHz, 24 Bit, 64x Over sampling
Analog: 1/4-in tip-ring-sleeve IN Balanced or unbalanced, Selectable +4 dBu/-10 dBV; Input impedance 20K. Positive voltage applied to ¼" tip produces outward woofer motion
Analog: XLR IN Selectable +4 dBu/-10 dBV; Input Impedance 10K.Positive voltage applied to XLR pin 2 produces outward woofer motion
Fuse Value 5A, 250VAC, Time Lag
Maximum Current AC at maximum power output (audio)
120V AC line 2.2A
230V AC line 1.1A
Full Power Rating 58 watts IEC Pink Noise LF Channel Only
Wattage Rating AC at 1/8th power IEC Pink Noise 60 watts
Self-Generated Noise Level {13 dBA / 1 m tonal artifact-free noise floor using analog input
1/8TH Power Rating 18 watts
AC Input Connector IEC
High Frequency: AC Input Voltage 230VAC, 50 Hz
High Frequency: THD + N, _ Power {0.02%
High Frequency Topology Class A-B Monolithic
High Frequency: Sine Wave Power Rating 70 watts ({0.1% THD into rated impedance)
Low Frequency: THD + N, _ Power {0.02%
Low Frequency: Sine Wave Power Rating 150 watts ({0.1% THD into rated impedance)
Low Frequency Topology Class A-B Monolithic, Balanced
High Frequency: Impedance 4 ohms
High Frequency: Magnet Type Neodymium, shielded with integral heat sink
High Frequency: Diaphragm Type Silk Dome
High Frequency Model 431G
High Frequency: Diameter 25 mm (1 in) diaphragm
High Frequency: Voice Coil 1" (25 mm)
Low Frequency: Cone Type Polymer coated paper fiber
Low Frequency: Impedance 8 ohms
Low Frequency: Magnet Type Neodymium
Low Frequency: Voice Coil 2" (51 mm)
Maximum Peak SPL Per Pair 118 dB SPL / 1m
Low Frequency Model 438H
Low Frequency: Diameter 203 mm (8 in)
Measured Maximum Peak SPL 112 dB / 1m
Measured Maximum Continuous SPL 106 dB / 1m
Low Frequency (<200 Hz) 2nd Harmonic: {1.5%
3rd Harmonic: {0.7%
Low-High Frequency 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 - 20 kHz)
2nd Harmonic: {0.4%
3rd Harmonic: {0.3%
Low Frequency Extension User controls set to default
-3 dB: 43 Hz-22 kHz
-10 dB: 35 Hz - 32 kHz
Enclosure Resonant Frequency 41 Hz
Frequency Response (+/- 1.5 dB) 50 Hz-20 kHz
Preset 1-6 Factory/User plus NULL. Recall only. STORE possible usingLSR4300 Control Center Software
Input Selection Analog (XLR /1/4")
Rear Panel Controls Input sensitivity +4dBu/ -10dBV
Eight SPEAKER ID DIP switches: Left, Right, Center, Left Surround, Right Surround, Center Surround, Left Extra, Right Extra
Front Panel Display 31 LED Segments for dBFS and indication of settings
Front Panel Meter -70 dBFS to 0 dBFS plus CLIP
Rear Panel Indicators 5 LEDs indicate Active input & digital stream selection
Handles Two, flush mounted on sides
Mounting 4 threaded mounting points conforming to industry standard square pattern, 107.9 mm x 50.8 mm (4 -1/4" x 2" ) center to center. M6 metric threads
Low Frequency Vent Rear ported linear dynamics aperture
Baffle Construction Injection-molded structural ABS
Enclosure Construction 19 mm (3/4 in) MDF
Dimensions (W x H x D) 10.5 x 17.25 x 10.6"/ 267 x 438 x 269 mm
Weight 15 kg (32.5 lbs)
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