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LSR Series 12" 3-Way Studio Monitor with Room Mode Correction EQ Circuit


The LSR6332 studio monitor is designed for use as a near or mid-field reference monitor, or a soffit-mounted main monitor in applications requiring exceptional spectral accuracy and high SPL capability. The LSR6332 combines the latest in JBL's renowned transducer and system technology with psychoacoustically derived spatial response criteria, resulting in a more accurate studio monitoring reference. In this design process, the system's frequency response over the forward listening range (+/-15 vertically and +/-30 horizontally) is optimized, as opposed to the conventional approach of optimizing the response directly on-axis. This design approach involves careful component design, selection of crossover frequency, and precise baffle geometry and detail. The result is a system that can be used for the most critical judgements of recording balance, image placement, and equalization.

252G Low Frequency Transducer
The neodymium 12" woofer is based on JBL patented Differential Drive technology. With the neodymium structure and dual drive coils, power compression is kept to a minimum to reduce spectral shift as power level increase. An added third coil between the drive coils acts as a dynamic brake to limit excess excursion and reduce audible distortion at the highest levels. The cone is made of a graphite polypropylene composite forming a rigid piston supported by a soft butyl rubber surround.

C500G Midrange Transducer
The 5" midrange transducer has a 2" neodymium magnetic structure with a woven Kevlar cone. The powerful motor structure was chosen to support the low crossover frequency to the woofer. In order to achieve the goal of accurate spatial response the crossover points are placed at 250 Hz and 2.2 kHz. These transition points match the directivity characteristics of the three transducers.

053TiS High Frequency Transducer
The high frequency transducer has a composite diaphragm integrated with an Elliptical Oblate Spheroidal (EOS) waveguide with wide uniform dispersion, which is critical to the smooth spatial response required in today's working environments. The mid and high frequency devices are mounted within millimeters of each other on a cast aluminum sub-baffle that can be rotated for horizontal or vertical placement, giving maximum flexibility in placement to reduce console and ceiling splash that interferes with stereo imaging and depth.

Dividing Network
The impedance compensated crossover filters are optimized to yield 4th-order (24 dB/octave) Linkwitz-Riley electroacoustic responses from each transducer (in-phase, -6 dB at crossover). In order to achieve optimal symmetrical response in the vertical plane, both magnitude and phase compensation are implemented in the dividing network. The network allows the user to attenuate the high frequency level above 3 kHz by 1 dB. This adjusts for spectral balance when used in bright rooms. Components used in the network are exclusively low-loss metal film capacitors, low distortion electrolytic capacitors, high-Q high saturation current inductors and high current sandcast power resistors.


  • Advanced Linear Spatial Reference design ensures flatter response at the mix position.

  • Differential Drive technology with dynamic braking for extended low frequency response and low power compression.

  • Neodymium midrange with 2" voice coil and Kevlar cone material for extended frequency response and low distortion.

  • Titanium composite high frequency transducer with elliptical oblate spheroidal waveguide and damped polepiece.

  • High-Density baffle for low enclosure resonance and stable inertial ground.

  • Linear Dynamics Aperture port design eliminates port turbulence and reduces port compression.

  • Magnetically shielded for use near video monitors.

  • Reinforced enclosure and convenient mounting points allow mounted installation.

  • Midrange/high frequency sub-baffle may be rotated by user for horizontal or vertical orientation.

  • Available as mirror imaged left and right models. (order LSR6332L or LSR6332R)


  • System:

  • Input Impedance (Nominal): 4 ohm

  • Anechoic Sensitivity: 93 dB/2.83 V/1 m (90 dB/ 1 W/ 1 m)

  • Frequency Response (60 Hz - 22 kHz): +1. -1.5 dB

  • Low Frequency Extension:-3 dB: 54 Hz-10 dB: 35 Hz

  • Enclosure Resonance Frequency: 33 Hz

  • Long Term Maximum Power (IEC265-8): 200 W continuous average; 800 W peak

  • Recommended Amplifier Power: 150 W - 1000 W (rating into 4-ohm load)

  • High Frequency Control (2.5 to 20 kHz): 0 dB, -1 dB

  • Distortion, 96 dB SPL, 1 m3:

  • Low Frequency (below 120 Hz):2nd Harmonic: <1.5%3rd Harmonic: <1%

  • Mid and High Frequency (120 Hz to 20 kHz):2nd Harmonic: <0.5%3rd Harmonic: <0.4%

  • Distortion, 102 dB SPL, 1 m3:

  • Low Frequency (below 120 Hz):2nd Harmonic: <1.5%3rd Harmonic: <1%

  • Mid and High Frequency (80 Hz to 20 kHz):2nd Harmonic: <1%3rd Harmonic: <1% (Note: <0.4%, 250 Hz - 20 kHz)

  • Power Nonlinearity (20 Hz to 20 kHz):30 Watts: <0.4 dB100 Watts: <1.0 dB

  • Low-Mid Frequency Crossover: 4th Order Acoustic Linkwitz-Riley: 250 Hz

  • Mid-High Frequency Crossover: 4th Order Acoustic Linkwitz-Riley: 2.2 kHz

  • Transducers:

  • Low Frequency Model: 252G

  • Diameter: 300 mm (12 in)

  • Voice Coil: 50 mm (2 in) Differential Drive with dynamic braking coil

  • Magnet Type: Neodymium

  • Cone Type: Carbon Fiber Composite

  • Impedance: 4 ohms

  • Mid Frequency Model: C500G

  • Diameter: 125 mm (5 in)

  • Voice Coil: 50 mm (2 in) aluminum edge wound

  • Magnet Type: Neodymium

  • Cone Type: Kevlar composite

  • Impedance: 4 ohms

  • High Frequency Model: 053TiS

  • Diameter: 25 mm (1 in) diaphragm

  • Voice Coil: 25 mm (1 in)

  • Magnet Type: Ceramic 5

  • Diaphragm Type: Damped titanium composite

  • Other Features: Elliptical oblate spheroidal waveguide

  • Impedance: 4 ohms

  • Physical:

  • Finish: Smooth dark graphite

  • Enclosure Volume (Net): 50 liter (1.8 cu ft)

  • Input Connectors: 5-way binding posts

  • Input Features: Bi-wirable

  • Mounting: 4 threaded mounting points conforming to industry standard square pattern, 127 x 70 mm (5 x 2.75 in) center to center. M6 metric thread.

  • Baffle Construction: Injection molded structural ABS

  • Enclosure Construction: 19 mm (3/4 in) MDF

  • Net Weight: 20.4 kg (45 lb)

  • Dimensions (WxHxD): 63.5 x 39.4 x 29.2 cm (25.0 x 15.5 x 11.5 in)

Q & A

MFR Part Number
Product Category
Unpowered Monitors
Unit of Measure
Shipping Weight
56.00 lbs.
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