JBL LSR6300 - Manual (Page 4)

Introduction
4
Congratulation on your purchase of LSR6300 Studio Monitors. All LSR6300 models incorporate proprietary and patented JBL transducer
and network technologies., to provide ultra-accurate response, and exceptional SPL capability. Because production rooms are acousti-
cally less-than-perfect, JBL has incoporated technologies in the LSR6300 Studio Monitors to overcome problems in the room. The
result: clear accurate sound at the listening position in any room.
LSR6300 Features to Overcome the Problems in the Room
LSR - Linear Spatial Reference Technology
JBL developed Linear Spatial Reference Technology to improve mid and high frequency accuracy at the listening position where reflect-
ed sound comes into play. By meeting frequency response criteria for seventy-two off-axis measurements, the LSR6300 Studio
Monitors ensure that not just the direct sound, but the reflected sound that reaches you at the listening position is also smooth and
accurate.
RMC™ - Room Mode Correction
The LSR6328P and LSR6312SP Subwoofer are equipped with RMC - JBL’s method of zeroing out bass problems at the listening posi-
tion caused by room modes. The LSR6332 Studio Monitor and other speakers enjoy the benefits of RMC when used in a system with
the LSR6312SP Subwoofer. The RMC Calibration Kit* gives you everything you need to tune your LSR system and compensate for the
room modes in the listening environment.
*Included with the LSR6312SP, Optional accessory for the LSR6328P
Boundary Compensation
LSR6328P and LSR6312SP boundary compensation presets restore accurate bass response when the loudspeakers are wall mounted
or positioned close to walls, corners and placed on work surfaces.
Mounting Options
LSR6300 enclosures are reinforced to make them safe for mounting and mounting points are provided for use with readily available,
industry-standard mounting brackets.
THX
®
pm3™
All LSR6300 models are THX
®
pm3™ approved for use in the most demanding production applications and environments.
JBL Transducer Technologies
Differential Drive ®
New voice coils and motor assemblies have two separate drive coils with twice the thermal surface area of traditional speakers. This
enables LSR6300 systems to provide higher peak output with less power compression, greater heat dissipation and a flatter impedance
curve at higher frequencies. By reducing the thermal related effects, the LSR6300 Studio Monitors sound the same at low, medium or
high levels.
Linear Dynamics Aperture™
Contoured ports virtually eliminate high-end turbulence found in traditional port designs. This provides more accurate low frequency
performance at higher output levels.
Dynamic Braking
All LSR6300 low frequency transducers are equipped with an electromagnetic braking voice coil to reduce the effects of extreme excur-
sion with high transient program materials.
Titanium Composite High-Frequency Device
Using patented technology, the high frequency device incorporates titanium and composite materials to improve transient response and
reduce distortion. By reducing distortion in the lower operating range, where the ear is most sensitive, ear fatigue is radically reduced.
Elliptical Oblate Spheroidal (EOS) Waveguide
Designed for a targeted listening window of ±30º horizontally and ±15º vertically, the EOS waveguide provides a frequency response
through the entire window of 1.5 dB from on-axis response. This allows listeners at a distance from the speakers and even far off-axis
to hear an accurate representation of the on-axis response.
Neodymium Midrange with Kevlar™ Cone
A 2” neodymium motor structure is used in the LSR6332 for high excursion capability with an intentionally low crossover point of 250
Hz. This improves the spatial response of the system, which is crucial for accurate reproduction.