Peavey SP 2X User manual

SP™2X
SPECIFICATIONS
Frequency response, 1 meter
on-axis, swept-sine in anechoic
environment:
53 Hz — 16 kHz (±3 dB)
Usable low frequency limit
(-10 d point):
44 Hz
Power handling:
Full Range:
500 W continuous
1 000 W program
2 000 W peak
Low Frequency Section:
500 W continuous
1 000 W program
2 000 W peak
High Frequency Section:
60 W continuous
120 W program
240 W peak
Sound pressure level, 1 Watt,
1 meter in anechoic environment:
Full Range:
98.0 dB SPL (2.83 V input)
Low Frequency Section:
99.0 dB SPL (2.83 V input)
High Frequency Section:
107.0 dB SPL (2.83 V input)
Maximum sound pressure level
(1 meter):
Full Range:
125.0 dB SPL continuous
131.0 dB SPL peak
Low Frequency Section:
126.0 dB SPL continuous
132.0 dB SPL peak
High Frequency Section:
124.8 dB SPL continuous
130.8 dB SPL peak
Transducer complement:
Low Frequency Section:
1x 15 in. woofer vented
1508-8 HE BWX
High Frequency Section:
1x .875 in. exit/51 mm voice coil
compression driver on CD horn
Rx22™on a CH®-941
ox tuning frequency:
Low Frequency Section:
53 Hz
Harmonic distortion:
1% rated power
2nd Harmonic:
100 Hz: 1.62%
1 kHz: 0.22%
3rd Harmonic:
100 Hz: 0.52%
1 kHz: 0.63%
10% rated power
2nd Harmonic:
100 Hz: 5.09%
1 kHz: 0.81%
3rd Harmonic:
100 Hz: 1.97%
1 kHz: 0.92%
Crossover frequency (internal
passive):
Low Frequency — High Frequency:
1 600 Hz
Recommended active crossover
frequency region and slope:
Low Frequency — High Frequency:
1 600 Hz at 18 dB/octave
Time offset:
Low frequency: 0.00 ms
High frequency: 0.65 ms
Impedance (Z):
Full Range:
Nominal: 8.0 Ω
Minimum: 7.2 Ω
Low Frequency:
Nominal: 8.0 Ω
Minimum: 6.1 Ω
High Frequency:
Nominal: 8.0 Ω
Minimum: 6.0 Ω
SPECS
PEAVEY ELECTRONICS

Input connections:
2x 1/4 in. phone jack and 1x Neutrik®
NL4 Speakon®(Biamp only)
Enclosure materials and finish:
/4" OSB finished in black carpet
Mounting provisions:
This unit is not designed for overhead
suspension
Dimensions (H x W x D):
Front:
.25 in. x 21.00 in. x 22.75 in.
845 mm x 5 mm x 578 mm
Rear:
.25 in. x 14.00 in. x 22.75 in.
845 mm x 56 mm x 578 mm
Net weight:
85 lbs. ( 8.6 kg)
eatures:
• Two-way, full range/biampable PA
enclosure
• Sound Guard HF driver protection
circuit
• Rx22™driver with a 2" titanium
diaphragm coupled to a CH®941
90° X 40° constant-directivity horn
• 15" BWX Black Widow®with
Kevlar®cone and field-replaceable
basket
• SP™X series trapezoidal cabinet
and styling with integral stand
adapter
• External voicing switch
• Neutrik®biamp jack
Description
The SP 2X is both a cosmetic and
performance redesign of the SP 2G
loudspeaker system. This high power
handling two-way loudspeaker system is
comprised of a 15" BWX woofer with a
Kevlar impregnated cone and an Rx22
compression driver coupled to a CH 941
constant directivity horn. This unit can be
driven in full-range mode simply by
plugging into one of the two 1/4" phone
jacks on the input plate. A Neutrik
Speakon connector is provided as an
input for biamp operation. The trapezoidal
design of the enclosure allows arrays to
be constructed much more easily than it
would be using a rectangular shaped box.
This shape also greatly reduces the build-
up of standing waves on the inside of the
enclosure. This ensures a minimum of
mid-bass and mid-range coloration of the
reproduced sound due to the cabinet. The
SP 2X is constructed of /4" OSB and
covered with Peavey’s durable black
carpet. Polymer corners are also a part of
the unit to provide added protection to the
enclosure. A powder coated expanded
metal grille covers the lower part of the
front of the enclosure to protect the low
frequency driver from unforeseen
accidents.
A voicing switch on the input cup
allows for the selection of two different
response settings for the loudspeaker
system. The normal position will yield a
more flat response. The EQ position will
have decreased output in the mid-range
and upper mid-range areas. This position
may be preferred for some types of
program material. The response curve for
each position is given in figure 1.
Sound Guard III is the redesign of
Peavey’s proprietary circuit for high
frequency driver protection for the new
Rx22 compression driver. This is an
integral part of the crossover for the SP
2X. The input signal is routed through the
Sound Guard III circuit in both full-range
and biamp modes of operation. When the
high frequency drive level to the SP 2X
exceeds a predetermined threshold the
Sound Guard III circuit is engaged. The
effect that this has is to subtly decrease
the signal level going to the Rx22 so that
it will not be damaged due to long-term
overpowering. Short duration transients
will not be attenuated by Sound Guard III
and have the possibility to damage the
Rx22. The Sound Guard III circuit is a
dynamic circuit that will attenuate the
signal more the larger the signal is, very
similar to a compressor. This is
accomplished through the use of a
specially selected dynamically resistive
light bulb. If the bulb in your Sound Guard
III 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, a Sylvannia SK bulb may be
located at various loudspeaker or
electronics parts stores.
requency response
This measurement is useful in
determining how accurately a given unit
reproduces an input signal. The frequency
response of the SP 2X is measured at a
distance of 1-meter using a 1 Watt (into
the nominal impedance) swept-sine input
signal. As shown in figure 1, the selected
drivers in the SP 2X combine to give a
smooth frequency response from 5 Hz —
16 kHz.
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. Using audio band 20 Hz
to 20 kHz pink noise with peaks of 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. This rating is contingent
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)
EQ
Normal
Switch Position
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

upon having a minimum of 3 dB of
amplifier headroom available.
Harmonic Distortion
Second and third harmonic distortions vs.
frequency are plotted in figures 3 and 4 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
Warning: This unit is not designed for
overhead suspension. SA™1 stand
adpater is included on the bottom for
stand mounting applications.
Architectural and Engineering
Specifications
The loudspeaker system shall have an
operating bandwidth of 53 Hz — 16 kHz.
The nominal output level shall be 98.0 dB
when measured at a distance of one
meter with an input of one Watt. The
nominal impedance shall be 8.0 Ohms.
The maximum continuous power handling
shall be 500 Watts maximum program
power of 1 000 Watts and a peak power
input of at least 2 000 Watts with a
minimum amplifier headroom of 3 dB.
The nominal radiation geometry shall be
90 degrees in the horizontal plane and
40 degrees in the vertical plane. The
outside dimensions shall be 33.25 inches
high by 21.00 inches wide by 22.75 inches
deep. The weight shall be 85 pounds.
The loudspeaker system shall be a
Peavey model SP 2X.
This product is manufactured under U.S.
Patent 6 064 745.
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.
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
40
50
60
70
80
90
100
110
dB SPL (re 20 Pa)
Harmonic Distortion : 1% Rated Power
Figure 4 3rd Harmonic
2nd Harmonic
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
50
60
70
80
90
100
110
120
dB SPL (re 20 Pa)
Harmonic Distortion : 10% Rated Power
Figure 3 3rd Harmonic
2nd Harmonic

SP™2X INPUT
Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A treet • Meridian • M • 39301
[phone] • FAX [phone] • www.peavey.com
©2001 Printed in the U. .A. 3/01
80304850