Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian, MS 39301 • U.S.A.
(601) 483-5365 • Fax 486-1278 • www.peavey.com
light bulb. If the bulb in your Sound
Guard
™
should ever burn out, a
replacement may be obtained from an
Authorized Peavey Service Center.
However, if a Peavey replacement bulb
is not readily available, an automotive
type 1156 bulb may be substituted for
temporary use until a Peavey bulb can
be obtained.
FREQUENCY RESPONSE
This measurement is useful in
determining how accurately a given
unit reproduces an input signal. The
frequency response of the SP
™
4G is
measured at a distance of 1 meter
using a 2.0 volt swept-sine input signal.
As shown in Figure 1, the selected
drivers in the SP
™
4G combine to give a
smooth frequency response from 39 Hz
to 17.5 kHz.
DIRECTIVITY
Beamwidth and directivity factors are
derived from the -6 dB points from the
polar plots (see Figure 3), which are
measured in a whole space anechoic
environment. 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 blending of
the components of the SP
™
4G exhibit a
desirable beamwidth and directivity
(Figures 3 and 4) suitable for sound
reinforcement applications.
POWER HANDLING
There are many different approaches
to power handling ratings. Peavey
Electronics rates this unit’s system
power handling using a modified form
of the AES Standard 2-1984. Utilizing
audio band limited (20 Hz to 20 kHz)
pink noise with peaks over four times
the RMS level, this strenuous test
signal assures the user that every
portion of this system can withstand
today’s high technology music. The
test signal contains large amounts of
very low frequency energy, effectively
simulating the frequency content of live
music situations. The full measure of
high frequencies in the test signal allow
for exposure of the speaker system to
synthesized tones that may extend
beyond audibility. This rating is
contingent on having a minimum of
3 dB of amplifier headroom available
so as to ensure that clipping does not
occur.
ARCHITECTURAL and
ENGINEERING SPECIFICATIONS
The loudspeaker system shall have
an operating bandwidth of 39 Hz to
17.5 kHz. The nominal output level
shall be 100 dB when measured at a
distance of one meter with an input
of one watt. The nominal impedance
shall be 4 ohms. The maximum
continuous power handling shall be
600 watts, maximum program power
of 1,200 watts and a peak power input
of at least 2,400 watts, with a minimum
amplifier headroom of 3 dB. The
nominal radiation geometry shall be
87 degrees in the horizontal plane
and 60 degrees in the vertical plane.
The outside dimensions shall be
49.25 inches high by 21.5 inches
wide by 22.75 inches deep. The
weight shall be 135 pounds. The
loudspeaker system shall be a
Peavey model SP
™
4G.
THREE + TWO 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 39302-2898.
©1998 Printed in U.S.A. 9/98
80301834
