specifications sp - Loyola Audio Visual Systems

specifications sp - Loyola Audio Visual Systems
SPECIFICATIONS
SP™ 3
RX™ 22 on an asymmetrical
Quadratic Throat CD horn
Box tuning frequency:
Low frequency section: 58 Hz
Crossover frequency
(internal passive):
Low frequency – mid frequency
650 Hz
Mid frequency – high frequency
2,100 Hz
Recommended active crossover
frequency region and slope:
Low frequency – mid/high frequency:
700 Hz at 12 dB/octave
Time offset:
Low frequency:
0.25 ms
Mid/high frequency: 0.0 ms
Impedance (Z):
Full range:
Nominal:
Minimum:
8.0 Ω
5.2 Ω
Low frequency:
Nominal:
Minimum:
8.0 Ω
6.9 Ω
Frequency response, 1 meter on-axis,
swept-sine in anechoic environment:
54 Hz to 16 kHz (±3 dB)
Usable low frequency limit
(-10 dB point):
47 Hz
Power handling:
Full range:
600 watts continuous
1,200 watts program
2,400 watts peak
Low frequency section:
500 watts continuous
1,000 watts program
2,000 watts peak
Passive mid/high frequency section:
150 watts continuous
300 watts program
600 watts peak
Sound pressure level, 1 watt,
1 meter in anechoic environment:
Full range:
98.0 dB SPL (2.83 V input)
Low frequency section:
100 dB SPL (2.83 V input)
Mid/high frequency section:
98 dB SPL (2.83 V input)
Maximum sound pressure level
(1 meter):
Full range:
126 dB SPL continuous
132 dB SPL peak
Low frequency section:
127 dB SPL continuous
133 dB SPL peak
Passive mid/high frequency section:
120 dB SPL continuous
126 dB SPL peak
Radiation angle measured at -6 dB point of polar response:
90° horizontal by 40° vertical
The vertical main polar lobe is
angled down 10° with respect to
straight ahead being +10, -30°
Transducer complement:
Low frequency section:
1 x 15" woofer, vented
Black Widow® 1508-8 HE SF BWX
Mid frequency section:
1 x 6.5" pro midrange on an
asymmetrical Quadratic Throat
CD horn
High frequency section:
1 x .875" exit /51 mm voice coil
compression driver
Passive MF/HF:
Nominal:
Minimum:
8.0 Ω
5.4 Ω
Input connections:
Full range: two 1/4" phone jacks, one
Neutrik® four-pin Speakon® jack &
one Neutrik NL4 Speakon
(bi-amp only)
Enclosure materials and finish:
Aspen hardwood plywood finished
in Hammertex™ covering
Mounting provisions:
This unit is not designed for
overhead suspension
Built-in SA-1 stand-mount adapter
and four large rubber feet on bottom
for floor use
Dimensions (H x W x D):
Front:
36.13” x 20.55” x 23.00”
918 mm x 522 mm x 584 mm
Rear:
36.13” x 12.63” x 23.00”
918 mm x 321 mm x 584 mm
Net weight:
105 lbs. (47.6 kg)
SPECIFICATIONS
Features
• Three-way, full-range sound reinforcement system
• RX™22 compression driver with
ferrofluid cooling
• 6.5” pro midrange with phase plug
and ferrofluid cooling
• 15” BWX Black Widow® 4” VC woofer
• 1,200 watts program, 2,400
watts peak
• Patented Quadratic Throat CD
Waveguide™ technology used on
midrange and tweeter
• Asymmetrical horn aims the
sound down 10° (at the
audience, not over their heads)
• Sound Guard™ III tweeter
and midrange protection
• Full-range inputs include a
Neutrik® Speakon® four-pin jack
and two 1/4” phone jacks
• Bi-amp input via four-pin switching
Neutrik Speakon
• Trapezoidal aspen hardwood enclosure
• Stand-mount adapter
Description
The new SP 3 incorporates the new
Black Widow BWX SF woofer as
well as two Quadratic Throat CD
Waveguides. The SP 3 is a threeway speaker system comprised
of the new 15” Black Widow BWX
SF series woofer with a Kevlar®
impregnated cone, a horn-loaded
6-1/4” pro midrange, and an RX 22
compression driver loaded onto a
constant directivity waveguide.
The SP 3 has a trapezoidal-shaped
enclosure, which reduces the
buildup of standing waves inside
the enclosure to minimize midbass and mid-range coloration. The
enclosure is constructed of aspen
hardwood plywood augmented
with dual-layered top and bottom
panels covered with heavy duty
textured black Hammertex™ and
reinforced with high-impact plastic
corners. A full length, wrap-around
perforated steel grille protects
the front of the enclosure. An
SA-1 stand-mount adapter is
incorporated to accommodate a
speaker stand.
The three-way system consists of
the following driver components:
a 15” Black Widow BWX SF series
woofer with a Kevlar impregnated
cone and dust cap. The woofer
SP™ 3
is capable of over 600 watts of
continuous power handling (AES
Std 2-1984). The woofer can handle
a lot of sheer power. The midrange
is carried by a 6-1/4” professionalgrade, horn-loaded speaker with a
phase plug and ferrofluid cooling,
providing high articulation for
vocals. The high frequencies are
handled by a 2” RX 22 titanium
diaphragm compression driver
utilizing ferrofluid cooling. Both
the midrange and the high
frequency drivers are coupled
to a Quadratic Throat Constant
Directivity Waveguide (U.S.
Patent #6,059,069) to provide
smooth, even response, low
distortion and good high frequency
dispersion. These horns both
have an asymmetrical vertical
polar response, aiming the main
energy lobe down 10 degrees
so it is aimed at the audience
instead of over their heads.
This reduces ceiling reflections,
ensuring greater clarity and gain
before feedback. The RX 22 driver
features the Radialinear Planar
Phase Correction System (U.S.
Patent #6,064,745), which provides
a smooth and extended high
frequency response.
Full-range input connection to
the system is made via two 1/4”
phone jacks and a four-pin Neutrik
in parallel. A four-pin Neutrik
switching jack is provided for biamping flexibility while maintaining
superior signal integrity. The
internal passive crossover features
the Peavey-exclusive Sound Guard
protection circuit for the tweeter
and the midrange speaker and an
advanced topology crossover with
high-performance components
to provide high power handling
and reliability. Sound Guard
provides long- and medium-term
driver overload protection without
impairing musical transients or
dynamics on either the mid-range
or the tweeter when the system
is used full range or when it is biamped. The crossover provides
driver roll-off and protection as
well as driver EQ for the woofer,
mid-range and horn for a clean,
clear and smooth response.
High-quality, reliable crossover
components include polypropylene
capacitors and high-current
inductors. The optimal integration
of the crossover with the selected
drivers results in a smooth
frequency response from 54 Hz to
16 kHz.
Despite its compact dimensions,
this system can produce very high
sound levels and handle 1,200
watts program power, resulting
in high articulation and long-term
reliability.
Frequency response
This measurement is useful in
determining how accurately a given
unit reproduces an input signal.
The frequency response of the
SP 3 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 3 combine to give a smooth
frequency response from 54 Hz to
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
upon having a minimum of 3 dB
amplifier headroom available.
Harmonic distortion
Second and third harmonic
distortions vs. frequency are
plotted in figures 3 & 4 for two
power levels. Ten percent (10%) of
rated input power and either one
percent (1%) of rated input power
or 1 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.
SPECIFICATIONS
SP™ 3
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.
continuous power handling shall
be 600 watts, with maximum
program power of 1,200 watts,
peak power input of at least 2,400
watts and a minimum amplifier
headroom of 3 dB. The nominal
radiation geometry shall be 90
degrees symmetrical about the
center axis in the horizontal plane,
and +10, -30 degrees about the
center axis in the vertical plane.
The outside dimensions shall be
36.13 inches high by 20.55 inches
wide by 23.00 inches deep. The
weight shall be 105 lbs. The
loudspeaker system shall be a
Peavey model SP™3.
Mounting
This unit is not designed for
overhead suspension. The SA-1
stand-mount adapter may be
incorporated, and four large rubber
feet are included on the bottom for
floor use.
Architectural & engineering
specifications
The loudspeaker system shall have
an operating bandwidth of 54 Hz
to 16 kHz. The nominal output level
shall be 98.0 dB when measured at
a distance of 1 meter with an input
of 1 watt. The nominal impedance
shall be 8.0 ohms. The maximum
Amplitude Response (1W 1m On-Axis)
Harmonic Distortion : 1% Rated Power
110
110
dB SPL (re 20 Pa)
dB SPL (re 20 Pa)
100
100
90
80
70
90
80
70
60
50
60
20
50
100
200
Figure 1
500
1k
Frequency (Hz)
2k
5k
10k
20k
40
20
50
100
200
500
1k
Frequency (Hz)
2k
5k
Figure 3
120
110
dB SPL (re 20 Pa)
50
30
20
Z
( ) 10
5
3
2
Figure 2
20k
Harmonic Distortion : 10% Rated Power
Impedance
100
1
20
10k
2nd Harmonic
3rd Harmonic
100
90
80
70
60
50
100
200
500
1k
Frequency (Hz)
2k
5k
10k
20k
50
20
Figure 4
50
100
200
500
1k
Frequency (Hz)
2k
5k
10k
2nd Harmonic
3rd Harmonic
20k
SPECIFICATIONS
SP™ 3
SP 3 Input Plate
80305551
Features and specifications are subject to change without notice.
Peavey Electronics Corporation • 5022 Hartley Peavey Drive • Meridian, MS 39305 • (601) 483-5365 • www.peavey.com
©2008 Printed in the U.S.A. 03/08
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