
Description
Designed for use in permanent professional
installations in churches, theaters, auditoriums,
gyms and theme parks, the SSE LA is a dual-radius
curved line array that provides a controlled and
contoured vertical coverage pattern for improved
intelligibility in large reverberant spaces. The
dual-coverage pattern provides a tight 20° vertical
coverage for the primary long-throw pattern and a
40° vertical coverage for the secondary short-throw
pattern. The smooth curves of the SSE LA array
allows the it to be flown much lower than most “J”
lines can, increasing the flexibility and utility in
spaces with low ceilings. Adding to this versatility is
an attenuation switch for the lower half of the short-
throw pattern that reduces the output so that it does
not overpower the audience just below and in front
of the array.
Constructed of premium birch plywood for strength,
rigidity and light weight, the SSE LA has a perforated
metal grille covered with cloth for a subdued
appearance. Built-in Flying Points allow flexibility in
coverage angles while providing stability.
SPECIFICATIONS
SSE™ LA
The SSE LA mid-high curved array is comprised
of sixteen 2" neodymium speakers with wide
bandwidth and a very smooth response across their
operating band. When mated with a companion
woofer module, the combination provides a clear,
smooth full-range sound from a flown system. Input
to the array is via barrier strip screw terminals. An
optional active crossover with equalization ensures
smooth, consistent frequency response across the
operating band.
Features:
• Dual-radius curve provides long throw and short-throw coverage
from one enclosure
• Short-throw pattern attenuation
switch for improved flexibility
• 400 W program/800 W peak power
handling
• Controlled vertical coverage
pattern improves intelligibility in
larger spaces
• Increased flexibility of flying
height with dual pattern
• Processor-based crossover and
EQ for maximum performance
• Flying points incorporated
• Available in black and white
painted finishes

Frequency response, 1 meter on-axis,
swept-sine in anechoic environment:
174 Hz to 18 kHz (±3 dB with processing)
Usable low frequency limit (-10 dB
point):
148 Hz (with processing)
Power handling (when used in system,
crossed over at 200 Hz):
200 W continuous
400 W program
800 W peak
Sound pressure level, 1 watt, 1 meter in
anechoic environment:
93 dB SPL, (2.83 V input)
Maximum sound pressure level (1
meter):
116 dB SPL continuous
122 dB SPL peak
Radiation angle measured at -6 dB
point of polar response:
Horizontal dispersion: 130°
Vertical dispersion: controlled 60° total
pattern, 20° for primary long-throw
pattern, 40° for secondary short-throw
pattern
Directivity factor, Ro (Q), 500 Hz – 16
kHz mean:
Q=4.5. +3.4/-2.4
Directivity index, Di 500 Hz – 16 kHz
mean:
Di=6.6 dB, +2.4dB/-3.3 dB
Transducer complement:
Sixteen neodymium 2" wide-band
speakers with 1" voice coil
Harmonic distortion:
1% rated power
Second Harmonic:
200 Hz: 0.31%
1 kHz: 0.35%
Third Harmonic:
200 Hz: .82%
1 kHz: 0.28%
10% rated power
Second Harmonic:
200 Hz: 0.32%
1 kHz: 0.48%
Third Harmonic:
200 Hz: 0.98%
1 kHz: 0.91%
2
Recommended active crossover
frequency region and slope:
Low frequency - High frequency:
200 Hz at 24 dB/octave minimum
Impedance (Z):
High Frequency:
Nominal: 8
Minimum: 6.8
Ω
Ω
Input connection:
Barrier strip screw terminals
Enclosure materials and finish:
Premium birch plywood finished in black
or white paint, or a natural wood finish
Mounting provisions:
Two multi-connect flying points for
suspension
Overall dimensions (H x W x D):
38.5" x 3.5" x 10.13"
97.8 cm X 8.9 cm X 25.7 cm
Net weight:
12 lbs. (5.5 kg)
Frequency response
This measurement is useful in determining
how accurately a given unit reproduces an
input signal. The frequency response of
the SSE™ LA is measured at a distance of
2 meters using a 4 volt swept-sine input
signal. This provides the equivalent of a 1M,
1W measurement. As shown in figure 1, the
selected drivers in the SSE LA combine to
give a smooth frequency response from 174
Hz to 18 kHz.
Directivity
Beamwidth is derived from the -6 dB points
from the polar plots (see figure 3) which
are measured in a whole-space anechoic
environment. Q and Directivity Index are
plotted for the on-axis measurement
position. These are specifications that
provide a reference to the coverage
characteristics of the unit. These parameters
provide insight for proper placement and
installation in the chosen environment.
The components of the SSE LA exhibit a
desirable beamwidth and directivity (figures
3 & 4) suitable for permanent installation
applications.
Power handling
There are many different approaches to
power handling ratings. Peavey rates this
loudspeaker system’s power handling using
a full-range form of the AES Standard 2-
1984. Inputting an audio band 20 Hz to 20
kHz pink noise with peaks of four times the
RMS level, with peaks of four times the RMS
level, and then running the signal through
either the dedicated SSE array processor or
the Peavey Digitool
sets, this strenuous test signal assures the
user that every portion of this system can
withstand today’s high technology music.
This rating is contingent upon having a
minimum of 3 dB of amplifier headroom
available.
®
with the SSE LA pre-
Harmonic distortion
Second and third harmonic distortions vs.
frequency are plotted in figures 5 & 6 for
two power levels. Ten percent (10%) of rated
input power and either one percent (1%) of
rated input power or one watt, whichever is
greater. Distortion is read from the graph
as the difference between the fundamental
signal (frequency response) and the desired
harmonic. As an example, a distortion curve
that is down 40 dB from the fundamental is
equivalent to 1% distortion.
Mounting
Caution: Before attempting to suspend
this speaker, consult a certified structural
engineer. The speaker can fall due to
improper suspension, resulting in serious
injury and property damage. DO NOT
suspend or mount any other product or
device from this enclosure. Maximum
enclosure angle is 45°. Use only the correct
mating hardware. All associated rigging is
the responsibility of others.
Architectural and Engineering
Specifications
The loudspeaker system shall have an
operating bandwidth of 174 Hz to 18 kHz with
signal processing. The nominal output level
shall be 93 dB when measured at a distance
of one meter with an input of one watt.
The nominal impedance shall be 8 ohms.
The maximum continuous power handling
shall be 200 watts, maximum program
power of 400 watts and a peak power
input of at least 800 watts, with a minimum
amplifier headroom of 3 dB. The system
shall utilize sixteen 2" wide-band speakers
in a dual-radius, curved pattern, and the
bottom four speakers shall have the option
of providing 6 dB of output attenuation.
The nominal radiation geometry shall be
130° in the horizontal plane and 60° total
in the vertical plane. The overall outside
dimensions shall be 38.5" high by 3.5"
wide by 10.13" deep. The weight shall be 12
pounds. The loudspeaker system shall be a
Peavey model SSE LA.
3 + 2 YEAR LIMITED WARRANTY
NOTE: For details, refer to the warranty statement.
Copies of this statement may be obtained by
contacting Peavey Electronics Corporation, P.O.
Box 2898, Meridian, Mississippi, 39301-2898.