Peavey SP 4X User manual

SP™4X
SPECIFICATIONS
Frequency response, 1 meter
on-axis, swept-sine in anechoic
environment:
51 Hz - 16 kHz (±3 dB)
Usable low frequency limit
(-10 d point):
41 Hz
Power handling:
Full Range:
1,000 W continuou
2,000 W program
4,000 W peak
Low Frequency Section:
1,000 W continuou
2,000 W program
4,000 W peak
High Frequency Section:
60 W continuou
120 W program
240 W peak
Sound pressure level, 1 Watt,
1 meter in anechoic environment:
Full Range:
98.0 dB SPL, (2.00 V input)
Low Frequency Section:
99.0 dB SPL, (2.00 V input)
High Frequency Section:
107.0 dB SPL, (2.83 V input)
Maximum sound pressure level
(1 meter):
Full Range:
128.0 dB SPL continuou
134.0 dB SPL peak
Low Frequency Section:
129.0 dB SPL continuou
135.0 dB SPL peak
High Frequency Section:
124.8 dB SPL continuou
130.8 dB SPL peak
Transducer complement:
Low Frequency Section:
2x 15 in. Woofer, Vented
1508-8 HE BWX
High Frequency Section:
1x .875 in. exit/51 mm voice coil
compre ion driver on CD horn
RX22™on a CH®-941
ox tuning frequency:
Low Frequency Section:
55 Hz
Harmonic distortion:
1% rated power
2nd Harmonic:
100 Hz: 2.40%
1 kHz: 0.19%
3rd Harmonic:
100 Hz: 0.18%
1 kHz: 0.64%
10% rated power
2nd Harmonic:
100 Hz: 7.01%
1 kHz: 0.71%
3rd Harmonic:
100 Hz: 0.52%
1 kHz: 0.80%
Crossover frequency (internal
passive):
Low Frequency - High Frequency:
1,400 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 m
High Frequency: 0.65 m
Impedance (Z):
Full Range:
Nominal: 4.0 Ω
Minimum: 3.4 Ω
Low Frequency:
Nominal: 4.0 Ω
Minimum: 3.1 Ω
SPECS
PEAVEY ELECTRONICS

High frequency:
Nominal: 8.0 Ω
Minimum: 6.0 Ω
Input connections:
1x 1/4 in. phone jack (input), 1x 1/4 in.
phone jack (thru only) and 1x Neutrik®
NL4 Speakon®(biamp only)
Enclosure materials and finish:
3/4" OSB fini hed in black carpet
Mounting provisions:
Thi unit i not de igned for overhead
u pen ion
Dimensions (H x W x D):
Front:
49.00 in. x 21.00 in. x 22.75 in.
1245 mm x 533 mm x 578 mm
Rear:
49.00 in. x 14.00 in. x 22.75 in.
1245 mm x 356 mm x 578 mm
Net Weight:
125 lb . (56.8 kg)
Features:
• Qua i three-way, full range/
biampable PA enclo ure
• Sound Guard™HF driver protection
circuit
• RX22™driver with a 2" titanium
diaphragm coupled to a CH®941 90°
X 40° con tant-directivity horn
• Dual 15" BWX Black Widow ®with
Kevlar®cone and field replaceable
ba ket
• SP™X erie trapezoidal cabinet
and tyling
• External voicing witch
• Neutrik biamp jack
Description
The SP 4X i both a co metic and
performance rede ign of the SP 4G
loud peaker y tem. Thi high power
handling, two-way loud peaker y tem i
compri ed of a 15" BWX woofer with a
Kevlar impregnated cone and an RX22
compre ion driver coupled to a CH 941
con tant directivity horn. Thi unit can be
driven in full-range mode imply by
plugging into the 1/4" phone jack on the
input plate. A thru-only 1/4" phone jack
connector i al o provided to allow a
econd loud peaker to be connected
without making a cable run back to the
amplifier. A Neutrik Speakon connector i
provided a an input for biamp operation.
The trapezoidal de ign of the enclo ure
allow array to be con tructed much
more ea ily than it would be u ing a
rectangular haped box. Thi hape al o
greatly reduce the build-up of tanding
wave on the in ide of the enclo ure.
Thi en ure a minimum of mid-ba and
mid-range coloration of the reproduced
ound due to the cabinet. The SP 4X i
con tructed of 3/4" OSB and covered with
Peavey’ durable black carpet. Polymer
corner are al o a part of the unit to
provide added protection to the enclo ure.
A powder-coated expanded, metal grille
cover the lower part of the front of the
enclo ure to protect the low frequency
driver from unfore een accident .
A voicing witch on the input cup
allow for the election of two different
re pon e etting for the loud peaker
y tem. The normal po ition will yield a
more flat re pon e. The EQ po ition will
have decrea ed output in the mid-range
and upper mid-range area . Thi po ition
may be preferred for ome type of
program material. The re pon e curve for
each po ition i given in figure 1.
Sound Guard III i the rede ign of
Peavey’ proprietary circuit for high
frequency driver protection for the new
RX22 compre ion driver. Thi i an
integral part of the cro over for the SP
4X. The input ignal i routed through the
Sound Guard III circuit in both full-range
and biamp mode of operation. When the
high frequency drive level to the SP 4X
exceed a predetermined thre hold the
Sound Guard III circuit in engaged. The
effect that thi ha i to ubtly decrea e
the ignal level going to the RX22 o that
it will not be damaged due to long-term
overpowering. Short duration tran ient
will not be attenuated by Sound Guard III
and have the po ibility to damage the
RX22. The Sound Guard III circuit i a
dynamic circuit that will attenuate the
ignal more the larger the ignal i , very
imilar to a compre or. Thi i
accompli hed through the u e of a
pecially elected dynamically re i tive
light bulb. If the bulb in your Sound Guard
III hould ever burn out, a replacement
may be obtained from an Authorized
Peavey Service Center. However, if a
Peavey replacement bulb i not readily
available, a Sylvannia SK3 bulb may be
located at variou loud peaker or
electronic part tore .
Frequency Response
Thi mea urement i u eful in
determining how accurately a given unit
reproduce an input ignal. The frequency
re pon e of the SP 4X i mea ured at a
di tance of 1-meter u ing a 1 Watt (into
the nominal impedance) wept- ine input
ignal. A hown in figure 1, the elected
driver in the SP 4X combine to give a
mooth frequency re pon e from 51 Hz —
16 kHz.
Power handling
There are many different approache
to power handling rating . Peavey rate
thi loud peaker y tem’ power handling
u ing a full-range form of the AES
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

Standard 2-1984. U ing audio band 20 Hz
to 20 kHz pink noi e with peak of four
time the RMS level, thi trenuou te t
ignal a ure the u er that every portion
of thi y tem can with tand today’ high
technology mu ic. Thi rating i contingent
upon having a minimum of 3 dB of
amplifier headroom available.
Harmonic distortion
Second and third harmonic di tortion
v . frequency are plotted in figure 5 and
6 for two power level . Ten percent (10%)
of rated input power and either one
percent (1%) of rated input power or one
Watt, whichever i greater. Di tortion i
read from the graph a the difference
between the fundamental ignal
(frequency re pon e) and the de ired
harmonic. A an example, a di tortion
curve that i down 40 dB from the
fundamental i equivalent to 1% di tortion.
Mounting
Warning: Thi unit i not de igned for
overhead u pen ion
Architectural and Engineering
Specifications
The loud peaker y tem hall have an
operating bandwidth of 51 Hz - 16 kHz.
The nominal output level hall be 98.0 dB
when mea ured at a di tance of one
meter with an input of one Watt. The
nominal impedance hall be 4.0 Ohm .
The maximum continuou power handling
hall be 1,000 Watt , maximum program
power of 2,000 Watt and a peak power
input of at lea t 4,000 Watt , with a
minimum amplifier headroom of 3 dB. The
nominal radiation geometry hall be 90
degree in the horizontal plane and 40
degree in the vertical plane. The out ide
dimen ion hall be 49.00 inche high by
21.00 inche wide by 22.75 inche deep.
The weight hall be 125 pound . The
loud peaker y tem hall be a Peavey
model SP 4X.
Thi product i manufactured under U.S.
Patent 6,064,745.
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™4X 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
80304852