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᭤ LSR6325P-1 Linear Spatial Reference Bi-Amplified Studio Monitor
Bi-Amplified Power System
The LSR6325P-1 combines two high-power amplifier
sections with an active crossover system. 100 watts of
low-frequency power and 50 watts to the high-frequen-
cy section provide maximum dynamic range. A bi-color
LED indicates power and any onset of clipping in
either amplifier section. Active crossover circuitry
results in a 24 dB/Octave Linkwitz-Riley Electro-
acoustic response between low and high frequency
devices for smooth transition in both the frequency and
time domains. This results in exceptional imaging, a
lack of time smear, and superior off-axis response lin-
earity. A variable level control and dual input sensitivi-
ties allow use with a broad range of professional and
semi-professional equipment. Balanced and unbalanced
signals can be accommodated with an XLR input. An
unbalanced RCA input is also provided. The frequency
response can be gently tailored to compensate for
placement and room absorption characteristics. Users
can select between two different high frequency
response contours. A low-frequency filter at 80 Hz can
also be added for use with subwoofers that contain
their own low pass filtering. A unique Boundary
Compensation control adjusts the bass and mid-bass
output for optimum performance when the system is
positioned near a boundary, on the meter bridge of a
console or work surface.
We all know that many loudspeakers have similar mea-
surements but sound different. By going beyond simple
on-axis frequency response measurements, JBL defines the
ultimate performance specification for new systems - what
it will sound like in your room. While other manufacturers
use a single on-axis frequency response measurement
taken at one point in space, JBL measures monitor sys-
tems over a sphere that encompasses all power radiated
into the listening room - in every direction. This data
reflects 1296 times the information of a single on-axis
LSR6325P-1 Response Curves
response curve. Seventy-two measurements of the direct
sound field, the reflected sound field, and the reverberant
field, the entire sound field heard by the listener, are cor-
related to optimize response at the listening position. In
place of spectral smoothing used by some manufacturers,
which actually conceals data, the JBL approach actually
exposes flaws in systems, such as resonances, poor dis-
persion and other causes of off-axis coloration. The data
shown below is a set of spatially measured graphs that are
the heart of JBL's philosophy.
Linear Spatial Reference Design and Measurement Techniques
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