JBM electronic Studio Monitors - Manual (Page 2)

key fe at u re s
f L I N E A R S PAT I A L R E F E R E N C E D E S I G N
f RMC™ RO O M M O D E CO R R E C T I O N
f M O U N T I N G P O I N TS FOR INDUSTRY S TA N D A R D
M O U N T I N G H A R DWA R E
f BA LA N C E D A N D U N BA LA N C E D I N P U TS W I T H
+4 dBU , -10 dBv SENSITIVITY
f E XC E L L E N T ON- AND OFF-AX I S P E R F O R M A N C E
f H I G H S P L CA PA B I L I TY
S T U D I O M O N I TO R S
It takes more than an accurate speaker system
to have accurate response at the mix position.
Problems in the room dramatically color what
you hear at the mix position. Walls and corners
can affect response. And standing waves at the
mix position can lead you to misjudge bass
content. As a result, a speaker which measures
flat in an anechoic chamber may “tell you a
different story” in the room.The key to accu-
racy is tackling the effect of boundaries,
standing waves and reflections. In developing
the LSR Series, JBL examined each problem in
the environment and created the perfect solu-
tion. Even if you work in a small control room,
an LSR system will provide smooth accurate
response at the mixer’s chair.
LSR (Linear Sp atial Refe re n ce Te c h n o l ogy )
Much of what you hear at the mix position is
reflected—not direct sound. Linear Spatial
Reference Technology ensures mid and high
frequency response of our speakers is neutral at
the mix position.The exact geometry of the wave-
guide, the interaction of the woofer and tweeter,
and the network are designed to provide an accu-
rate listening window of ± 30 degree horizontal,
± 15 degree vertical. As a result, the reflected
sound that reaches the mix position
is smooth and accurate.
RMC™ (Room Mode Co rre ct i o n )
Room modes or standing waves can mislead you
give you a false impression of low frequency
content in the mix. JBL is first to supply a complete
solution for identifying and overcoming the nega-
tive effect of room modes.The LSR 6328P, 6312SP
and all LSR4300 models are equipped with RMC™,
JBL's ingenious Room Mode Correction System.
The LSR6300 RMC Calibration kit includes every-
thing needed to identify room modes and set the
LSR6300 series on-board parametric equalizer. JBL
engineers took the RMC solution one step further
by equipping the LSR4300 Series speakers with an
automated analyzer and corrective filter. Both
systems dramatically improve low frequency
performance at the mix position.
Built-in Bo u n d a ry Co m pe n s ation
With the advent of multi-channel production,
space limitations may compromise the
positioning of the speakers. JBL’s powered
LSR6300 models include boundary compensation
switches and the LSR4300 RMC Systems includes
filters to offset the increase in bass response, that
occurs when the speaker is placed near a wall, in a
corner or on a work surface.
Stunning So u n d
Starting with application-designed and built
transducers engineered for extremely accurate
response and superb power handling, the stun-
ning sound of the LSR Series Studio Monitors
make long mix sessions a pleasure.The LSR6300
line* incorporates the single most significant
advance in monitor history: JBL’s patented
Differential Drive Technology. Providing unparal-
leled performance, the woofer permanently
dispels the notion that better linearity, higher
power handling and greater dynamic accuracy
are somehow unobtainable. JBL’s Differential
Drive uses two drive coils with twice the thermal
surface area of traditional speakers. As a result,
LSR6300 systems provide higher peak output
with less spectral shift that causes monitors to
sound different when driven at different power
levels. All LSR Series speakers withstand the JBL
loudspeaker torture test driven at full rated
power for over 100 hours. Meeting higher stan-
dards than any other loudspeaker manufacturer,
JBL’s demanding test ensures that the LSR Studio
Monitors give you accurate mixes year after year.
* (LSR6328P, LSR6332, LSR6312SP)
The JBL LSR6300 and LSR4300 Series go “beyond accurate”all the way to“stunning”by incorporating features which reduce the effect of
problems in the room.We start with JBL transducer and network technologies that provide ultra-flat response and exceptional dynamic
range.Then we incorporate features that help to overcome the contributions of the room. So even if you work in a small home studio, you’ll
have clear sound at the mix position.All LSR models are engineered for use in the most demanding production environments.With JBL’s
LSR6300 Series and the new LSR4300 Series, mixing is a pleasure.
The LSR Series
Elliptical Oblate Spheroidal (EOS) Waveguide
Designed for a targeted listening window of ± 30 degrees horizontally and ±15 degrees
vertically, the EOS provides smooth response through the entire listening window within
1.5 dB of the on-axis response.The result:The listener, even far off-axis, can hear an
accurate representation of the on-axis response.
Composite High Frequency Device
The 1" magnetically shielded dome high frequency device incorporates titanium and
composite materials to improve transient response and reduce distortion.The result:
By reducing distortion in the lower operating range where the human ear is most
sensitive, listener fatigue is dramatically reduced.
500G Midrange Transducer
The midrange is a 2" neodymium motor with a 5-inch woven Kevlar™ cone.The powerful
motor structure was chosen to support the low crossover point to the woofer.In order to
achieve the goal of accurate spatial response,the crossover points match the directivity
characteristics of the three transducers for optimum spatial response.The result:
Absolute pinpoint accuracy.
Dynamic Braking
LSR6300 low frequency transducers are equipped with an electromagnetic braking coil
that reduces the effects of extreme excursion with high transient material.This causes
more linear compliance resulting in lower distortion,more accurate reproduction and
increased reliability.
LSR6332
Reinforced mounting points on LSR speakers
allow convenient positioning and installation of
multi-channel surround systems for any mixing
application, in any studio environment.
Carbon Fiber
Composite Cone
Dual Magnetic Gaps
Dynamic Brake Coil
Neodymium Magnet
Aluminum
Diecast Heatsink
Dual Drive Coils
Diecast Frame
Di f fe re ntial Dri ve® Te c h n o l ogy