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FREQUENCY RESPONSE
This measurement is useful in
determining how accurately a given
enclosure reproduces an input signal.
The frequency response of the SP
™
Subcompact 18 is measured at 1 meter
using a 2.82 volt swept-sine input. As
shown in Figure 1, the selected driver in
the SP
™
Subcompact 18 gives a
smooth frequency response from 47 Hz
to 190 Hz.
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 - 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
allows 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 to
ensure that clipping does not occur.
MOUNTING
Caution: The SP
™
Subcompact 18
is not designed to be suspended
overhead.
ARCHITECTURAL AND
ENGINEERING SPECIFICATIONS
The loudspeaker system shall have
an operating bandwidth of 47 Hz to
190 Hz. The nominal output level shall
be 99 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 350 watts, maximum
program power of 700 watts and a peak
power input of at least 1,400 watts, with
a minimum amplifier headroom of 3 dB.
The nominal radiation geometry shall
be 180 degrees in the horizontal plane
and 180 degrees in the vertical plane.
The outside dimensions shall be 28
inches high by 23.75 inches wide by
23.75 inches deep. The weight shall be
109 pounds. The loudspeaker system
shall be a Peavey model
SP
™
Subcompact 18.
THREE PLUS TWO YEARS
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.
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
©1999 Printed in U.S.A. 2/99
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
60
70
80
90
100
110
dB SPL (re 20 Pa)
Amplitude Response (1W 1m On-Axis)
Figure 1
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
1
2
3
5
10
20
30
50
100
Impedance
Z
(
)
Figure 2
80300080