Automatically analyzes and corrects the sound for accurate mixing.
The JBL LSR4326P Studio Monitors are designed for critical stereo and multichannel 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 are the first professional monitor speakers 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.
Network and Digital Features
The JBL LSR4300 series speakers enhance computer-based audio production by incorporating systemwide volume control, input source selection, individual speaker solo and user EQ. They use the Harman HiQnetTM network protocol that allows centralized control of a multichannel system 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.
438H Low Frequency Transducer
The 6.25" woofer in these JBL speakers uses a powerful, shielded neodymium magnet which can be used in close proximity to CRT-type monitors with no interference. The transducer uses 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 JBL studio monitor's 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 JBL LSR4326P monitors incorporate 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.
JBL LSR 4326P Powered Studio Monitor Pair 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
Superb sound from the name you've learned to trust - JBL! Order today.
JBL LSR 4326P Powered 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: 25mm (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
Posted by vafalconfan from Virginia Beach, VA on Feb 20, 2008
Experience w/product: I own it
Reviewer's Background: Pro player for over 2 decades, record at home now
Reviewer's Play Style: blues, Christian rock
My second set of studio monitors. If you are pricing a pair of monitors in the $600-$800 range these are worth the extra cash. The appearance exudes quality. Nice to look at, they sound as good as they look. Tight, clear and more watts than you will ever need. These are very nice for home recording.
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