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Item # 600377 | Customer Ratings: Ratings ( 5 Based on 9 reviews)

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JBL LSR4328P Studio Monitor Pair
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      JBL LSR4328P Studio Monitor Pair (600377)
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Automatically analyzes and corrects the sound for accurate mixing.

The JBL LSR4300 Series Studio Monitors are designed for critical stereo and multi-channel audio production applications that require exceptional spectral accuracy and high SPL capability. Exclusive technology from JBL automatically analyzes and corrects the response of each speaker in the room for absolute accuracy in mixing.

Acknowledging that much of today's production is carried out in acoustically untreated rooms, the LSR4300 Series is the first professional monitor to combine JBL's Linear Spatial Reference technology and automated RMCTM Room Mode Correction, an onboard system that automatically compensates for low frequency anomalies measured at the mix position.

The LSR4300 enhances computer-based production by incorporating system-wide volume control, input source selection, individual speaker solo and user EQ. Harman HiQnetTM Network protocol enables centralized system-wide control from any speaker, wireless remote control, or computer using LSR4300 Control Center Software.

438H Low Frequency Transducer

The 8" woofer utilizes a powerful, shielded lightweight neodymium magnet which can be used in close proximity to CRT-type monitors with no interference. The transducer utilizes a copper-clad polepiece that improves high frequency output by reducing voice coil inductance. A copper ribbon voice coil ensures high sensitivity, and a flux shorting ring stabilizes the magnetic field in the gap, reducing distortion. Heat sinking has been placed close to the magnetic gap in order to draw out heat as efficiently as possible. The cone is polymer coated for uniformity of response over the woofer's passband.

431G High Frequency Transducer

The high frequency transducer has a treated silk diaphragm that produces uniform and smooth sound. Its flat ribbon aluminum voice coil ensures low-moving mass and enables the transducer to achieve response out to 22kHz. A lightweight neodymium magnet structure with integral heat sinking, along with ferrofluid in the magnetic gap, enable the transducer to produce high peak output levels with minimal power compression. The magnet structure is integrally shielded, enabling the system to be used in proximity to CRT-type monitors with no interference.

Bi-amplified Power System

The LSR4328P incorporates 2 high power amplifiers that provide 150 watts of power to the low frequency transducer and 70 watts of power to the high frequency transducer. A precision digital dividing network having high-order Linkwitz-Riley slope characteristics for smooth transition between transducers, results in exceptional imaging and lack of time smear. The circuitry also yields a tonal-artifact-free noise floor.

Network and Digital Features

The LSR4300 Series utilizes the Harman HiQnetTM network protocol that allows centralized control of a multi-channel system from a from any speaker's front panel, wireless remote control, or computer via a standard USB connection and LSR4300 Control Center Software. The network is configured using supplied CAT5 cable and by setting a DIP switch on each speaker. Harman HiQnet also enables synchronized RMC calibration of all speakers on the network.


JBL LSR4328P Studio Monitor Pair Features:

  • Contains 2 monitors and software
    Key Features: Advanced LSR Linear Spatial
    Reference Design provides neutral off-axis response for greater clarity at the mix position
    Automated RMCTM Room Mode
    Correction system with calibration microphone measures and automatically compensates for low frequency standing waves and boundary conditions
    Harman HiQnetTM Network Protocol enables system-wide control of level, EQ, input selection, solo and more
    Wireless remote control and LSR4300
    Control Center Software enable control from the listening position
    AES/EBU, S/PDIF digital inputs
    Balanced analog input with selectable +4dBu / -10 dBV sensitivity
    Bi-amplified design eliminates the need for external amplification
    Front panel output meter with variable brightness displays signal level
    Custom designed, self-shielded transducers with neodymium motor structures for exceptional transient response and superb power-handling
    Integrated mounting points allow
    wall mounting for greater placement options
    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 LSR4328P Studio Monitor Pair Specifications:

  • Frequency Response: (+/- 1.5 dB): 55Hz—20kHz
    Enclosure Resonant Frequency: 52Hz
    Low Frequency Extension: User controls set to default
    -3 dB: 47 Hz — 22 kHz
    -10 dB: 39 Hz — 32 kHz
    Low-High Frequency Crossover: Digital Crossover: 2.4kHz, 8th order LR LF/4th order BW HF
    Distortion, 96dB SPL,
    1 m: Mid-High Frequency
    (200 Hz - 20 kHz)
    2nd Harmonic: <0.4%
    3rd Harmonic: <0.3%
    Low Frequency (<200 Hz)
    2nd Harmonic: <0.8%
    3rd Harmonic: <1.4%
    Measured Maximum Continuous SPL : 106dB / 1m
    Measured Maximum Peak SPL: 112dB / 1m
    Maximum Peak SPL Per Pair: 118dB SPL / 1m
    Low Frequency Model: 436H
    Diameter: 159 mm (6-1/4")
    Voice Coil: 1.5" (38 mm)
    Magnet Type: Neodymium
    Cone Type: Polymer coated paper fiber
    Impedance: 8 ohms
    High Frequency Model: 431G
    Diameter: 25 mm (1 in) diaphragm
    Voice Coil: 1" (25 mm)
    Magnet Type: Neodymium, shielded with integral heat sink
    Diaphragm Type: Silk Dome
    Other Features: Elliptical oblate spheroidal waveguide
    Impedance: 4 ohms
    Amplifier:
    Low Frequency Topology: Class A-B Monolithic, Balanced
    Sine Wave Power Rating: 150 watts (<0.1% THD into rated impedance)
    THD + N, _ Power: <0.02%
    High Frequency Topology: Class A-B Monolithic
    Sine Wave Power Rating: 70 watts (<0.1% THD into rated impedance)
    THD + N, _ Power: <0.02%
    AC Input Voltage: 115 VAC, 60 Hz (230VAC, 50 Hz — models LSR4328P/230 and
    LSR4326P/230)
    AC Input Connector: IEC
    Self-Generated Noise Level: <13 dBA / 1m tonal artifact-free noise floor using analog input
    1/8TH Power Rating: 13 watts LSR4326P
    Full Power Rating (100 hrs. IEC 58 watts IEC Pink Noise LF Channel Only
    pink noise, 6dB crest Factor):
    Wattage Rating: AC at 1/8th power IEC Pink Noise 60 watts
    Maximum Current: AC at maximum power output (audio)
    120V AC line 2.2A (LSR4328P, LSR4326P)
    230V AC line 1.1A (LSR4328P/230, LSR4326P/230)
    Fuse Value: 5A, 250VAC, Time Lag (LSR4328P, LSR4326P)
    2.5A, 250VAC, Time Lag (LSR4328P/230, LSR4326P/230)
    Inputs and Outputs
    Analog XLR IN: Selectable +4 dBu/-10 dBV; Input Impedance 10K.
    Positive voltage applied to XLR pin 2 produces outward woofer
    motion
    1/4-in tip-ring-sleeve IN: Balanced or unbalanced, Selectable +4 dBu/-10 dBV; Input impedance 20K. Positive voltage applied to 1/4" tip produces
    outward woofer motion
    AD Converters: 96kHz, 24 Bit, 64x Over sampling
    Calibrated Input Sensitivity,
    Analog XLR & 1/4":
    +4 dBu: 94 dB SPL / 1 m
    -10 dBV: 94 dB SPL / 1 m
    Digital XLR IN: AES/EBU(IEC60958)
    XLR OUT: AES/EBU(IEC60958)
    RCA IN: S/PDIF , (EIAJ CP1201)
    RCA OUT: S/PDIF (EIAJ CP1201)
    Digital Input Sample Rates: 96k Hz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz. Tolerance: +/- 3%
    Digital Input Word Length: 24 Bit
    RMC Microphone Input 1/8" tip-ring-sleeve; powered +15 Volts on tip.
    (Use supplied microphone only)
    Network Connection: RJ45 IN, RJ45 OUT
    Network Protocol: Proprietary Harman HiQNetTM Protocol using RS485
    Computer Interface: USB Type 1
    Front Panel Controls: ON, SOLO, RMC, EQ ON, LF, HF, PRESET, INPUT, +/-
    RMC Functions: Start, Bypass
    RMC Filter Range: 73 Frequencies (1/24th octave centers) between 20Hz to 160Hz, with a variable Q from 1 (1.4 octave bandwidth) to 16
    (1/11th octave bandwidth, and from 3 to 12 dB of attenuation.
    LF EQ: Factory Default: 500Hz Shelf, +/- 2dB in _ dB increments.
    137 corner frequencies between 19.7 Hz and 1kHz accessible
    via LSR4300 Control Center Software
    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
    PRESET: 1-6 Factory/User plus NULL. Recall only.
    STORE possible using LSR4300 Control Center Software.
    INPUT Selection: Analog (XLR / 1/4")
    S/PDIF A, B
    AES/EBU A, B
    +/- Default: System Volume Control: 0 dB to -
    Secondary functions: Increment/decrement value of selected
    function
    Rear Panel Controls: Input sensitivity +4dBu/ -10dBV
    8 SPEAKER ID DIP switches: Left, Right, Center, Left
    Surround, Right Surround, Center Surround, Left Extra,
    Right Extra
    Additional Controls via LSR4300 DIM (-12dB at full volume), System MUTE, Preset STORE;
    Control Center Software: LOAD Configuration, SAVE Configuration; Level TRIM +3 dB to — 10 db in 1/4dB increments
    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
    Physical Finish: Dark graphite
    Handles: 2, 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. Not for Suspension! Only placement
    on bracket
    Low Frequency Vent: Rear ported linear dynamics aperture
    Baffle Construction: Injection-molded structural ABS
    Enclosure Construction: 19mm (3/4") MDF
    Net Weight: 13 kg (28-1/2 lbs.)
    Dimensions: (9.3"W x 15.25H" x 10.3D")


Product Reviews
(Based on 9 reviews)
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Viewing Reviews 1 - 3 of 9 |
  • Sound, Quality, Value in JBL LSR4328P

    As reviewed by JordanAudio on 10/23/2006

    The JBL LSR4328P monitors provide an excellent sound, quality value for most recording musicians, project studios and control rooms. With its auto Room Mode Correction, intelligent HiQnet and Control Center software, these monitors are easy to set up and use. Just connect the monitors via the supplied ethernet cables, set the DIP switches and, plug in the RMC mic, press a button on the remote or front panels and the monitors do the rest. The monitors can also be controlled with a Windows or Mac computer with the supplied USB cable. A wide variety of inputs (digital AES/EBU, SPDIF, and analogue XLR and TRS) allows for incredible flexibility. This way you can connect multiple sources and switch inputs with the supplied remote, or front panel, when necessary. With a nice tight low end, clear mids and detailed highs, these bi-amped active monitors will suit most monitoring situations very well. Although, for some applications, you'll probably want to add a subwoofer to your setup. The JBL LSR series is great for 5.1 surround monitoring as well. If you're looking for a new pair of monitors for your project studio, or studio control room, you'll be hard pressed to find a better overall ease-of-use, great sound, quality, and value from the JBL LSR4238P and Guitar Center.

    11 of 11 people found this review helpful.
    Was this review helpful?
  • JBL LSR 4328P Studio Moniors

    As reviewed by Humble Jim on 6/10/2010

    These speakers were purchased because of advise from a Guitar Center employee who owns a pair. Also, all the reviews of the speakers were favorable. I was impressed with the self-equalizing technology inherent in the LSR 4238 Monitors. A flat frequency response has always been the "Holy Grail" of audiophiles. Hopefully, the self correcting technology of these speakers is more accurate than my hearing. The speakers are used with my Yamaha Motif XS-8 Synthesizer, and rest upon the floor stands which Guitar Center sells. These devises, combined, have proven to be a powerful and satisfactory combination. They exceed my expectations while meeting all of my musical needs. I can recommend them without reservation.

    6 of 6 people found this review helpful.
    Was this review helpful?
  • These Monitors are the Bomb, but...

    As reviewed by Michael Vallejo on 1/13/2012

    I've had these monitors for about 3 years now and they rule. My mixes have never been better and I really love these monitors. The only problem, there is a residue on the monitor face that gets really tacky/sticky and seems to get worse over time. I can literally touch the monitor face now and it will leave an imprint of my finger. There is also a posting about the problem on another forum. I am actually sending them back to JBL this week for evaluation because they stickiness has gotten so bad that is also making the buttons on the front sticky. On the plus side their customer service is very responsive and very professional.

    2 of 2 people found this review helpful.
    Was this review helpful?
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