Peavey ILS 1564 User manual

Frequency Response, 1 meter
on-axis, swept-sine in anechoic
environment:
47 Hz - 18.5 kHz (±3 dB)
Usable Low Frequency Limit
(-10 B point):
38 Hz
Power Han ling:
Full Range:
750 w continuous
1,500 w progra
3,000 w peak
Low Frequency Section:
600 w continuous
1,200 w progra
2,400 w peak
High Frequency Section:
100 w continuous
200 w progra
400 w peak
Soun Pressure Level, 1 Watt, at
1 meter in anechoic
environment:
Full Range:
95.0 dB SPL, (2.83 V input)
Low Frequency Section:
98.0 dB SPL, (2.83 V input)
High Frequency Section:
109.0 dB SPL, (2.83 V input)
Maximum Soun Pressure Level
(1 meter):
Full Range:
124.0 dB SPL continuous
130.1 dB SPL peak
Low Frequency Section:
125.8 dB SPL continuous
131.8 dB SPL peak
High Frequency Section:
129.0 dB SPL continuous
135.0 dB SPL peak
Ra iation Angle, measure at
-6 B point of polar response:
500 Hz – 1.6 kHz:
Horiz. 95o± 20o
Vert. 100o± 10o
1.6 kHz - 5 kHz:
Horiz. 95o± 20o
Vert. 50o± 15o
5 kHz - 16 kHz:
Horiz. 55o± 5o
Vert. 35o± 5o
Directivity Factor, Q (Mean):
16.35 ± 9.58
Directivity In ex, Di (Mean):
11.25 dB ± 2.93 dB
Trans ucer Complement:
Low Frequency Section:
1x 15 in. Woofer, Vented
1508-8 Cu
High Frequency Section:
1x 1.6 in. Exit/100 Voice Coil
Co pression Driver on Quadratic
Throat Waveguide
44 XT (w/o adapter) on CH-642qt
Box Tuning Frequency:
Low Frequency Section: 50 Hz
Harmonic Distortion:
1% rate power
2n Harmonic:
100 Hz: 1.34%
1 kHz: 0.24%
SPECIFICATIONS
ILS™1564

3r Harmonic:
100 Hz: 0.27%
1 kHz: 0.51%
10% rate power
2n Harmonic:
100 Hz: 6.58%
1 kHz: 0.87%
3r Harmonic:
100 Hz: 1.14%
1 kHz: 0.78%
Crossover Frequency (internal
passive): Low Frequency - High
Frequency:
1,600 Hz
Time Offset:
Low Frequency: 0.00 s
High Frequency: 0.74 s
Impe ance (Z):
Full Range:
No inal: 8.0 Ω
Mini u : 7.6 Ω
Low Frequency:
No inal: 8.0 Ω
Mini u : 7.8 Ω
High Frequency:
No inal: 8.0 Ω
Mini u : 7.9 Ω
Input Connections:
2x Neutrik®Speakon®NL4MD and
1x five-position barrier strip
Enclosure Materials an Finish:
3/4 in. Poplar Plywood Finished in
Exterior Grade Hardened Black
Paint
Mounting Provisions:
(12) 3/8"-16 threaded ounting
suspension points (three each top
and botto and two each sides
and back). Use only forged
shoulder achinery eye bolt, Mil
Spec MIL51937-3.
Dimensions (H x W x D):
Front:
33.75 in. x 19.38 in. x 21.75 in.
857 x 492 x 552
Rear:
33.75 in. x 8.63 in. x 21.75 in.
857 x 219 x 552
Net Weight:
96 lbs. (43.6 kg)
2
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)
30
40
60
80
100
140
180
300
360
Beamwidth (Degrees)
Beamwidth
Vertical
Horizontal
Figure 3b - ILS 1564 H
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
30
40
60
80
100
140
180
300
360
Beamwidth (Degrees)
Beamwidth
Vertical
Horizontal
Figure 3a - ILS 1564 V
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

3
Features
• 47 Hz to 18.5 kHz bandpass
• 4" diaphrag , 1.6" exit, ferrofluid
equipped high frequency co pression
driver
• Patented Quadratic Throat Waveguide
• Carefully tailored directivity patterns
• Flexible suspension provisions
• Robust power handling capabilities
• Passive crossover included
• Bia plified crossover provisions
Applications
• Stadiu s
• Arenas
• Multi-purpose facilities
• Cruise ships
• The e parks
• Houses of worship
• Live usic venues
• Hotels eeting roo s
• Conference facilities
• Theaters
• Auditoriu s
• Civic centers
• Judicial facilities
• Gy nasiu s
• Perfor ing arts centers
Description
The new Peavey ILS 1564V (vertical)
and ILS 1564H (horizontal) Loud-
speaker Syste s are two-way, vented
low frequency enclosures using a 15
inch low frequency driver paired with a
60° (horizontal) by 40° (vertical) high
frequency waveguide. The HF section
e ploys a 1.6 exit/100 voice coil
co pression driver ounted on one of
Peavey’s revolutionary new Quadratic
Throat Waveguides. In the ILS 1564H
unit, the waveguide is rotated to provide
a corresponding bea width which ay
be e ployed in low ceiling type
applications. Both versions of the ILS
1564 have a full range sensitivity of
95 dB SPL – (1 watt/1 eter) and a
axi u output of 130 dB at 1 eter
(full range).
The Peavey ILS 1564 is a high
perfor ance loudspeaker syste for
use in de anding sound reinforce ent
applications. The robust construction of
the ILS 1564 provides power handling
capacities of 750 w continuous, 1.5 kW
progra and 3 kW peak (full range).
The unit ay be operated using the
internal 1,600 Hz passive crossover or
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
1
10
100 Q & Directivity Index
Q
Figure 4
20
10
Di
0
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 6 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 5 3rd Harmonic
2nd Harmonic

4
ay be bia plified. Twelve 3/8 inch x
16 threaded ounting suspension
points (three each top and botto and
two each sides and back) allow a
variety of suspension configurations.
Multiple units ay be ounted to for
a vertical/horizontal array [see
li itations under ounting
instructions]. Both versions of the
ILS 1564 are solidly constructed of
3/4 inch void free poplar plywood and
finished with an exterior grade
hardened black paint.
Frequency Response
This easure ent is useful in
deter ining how accurately a given
unit reproduces an input signal. The
frequency response of the ILS 1564
is easured at a distance of 1- eter
using a 1 watt (into the no inal
i pedance) swept-sine input signal.
As shown in Figure 1, the selected
drivers in the ILS 1564 co bine to
give a s ooth frequency response
fro 47 Hz - 18.5 kHz.
Directivity
Bea width is derived fro the -6 dB
points fro the polar plots (see Figure
3) which are easured in a whole
space anechoic environ ent. Q and
Directivity Index are plotted for the on-
axis easure ent position. These are
specifications that provide a reference
to the coverage characteristics of the
unit. These para eters provide insight
for proper place ent and installation
in the chosen environ ent. The
blending of the co ponents of the ILS
1564 exhibit a desirable bea width
and directivity (Figure 3 and 4)
suitable for sound reinforce ent
applications.
Power Han ling
There are any different approaches
to power handling ratings. Peavey
rates this loudspeaker syste ’s power
handling using a full-range for of the
AES Standard 2-1984. Using audio
band 20 Hz to 20 kHz pink noise with
peaks of four ti es the RMS level,
this strenuous test signal assures the
user that every portion of this syste
can withstand today’s high technology
usic. This rating is contingent upon
having a ini u of 3 dB of a plifier
headroo available.
Harmonic Distortion
Second and third har onic distortions
vs. frequency are plotted in Figures 5
and 6 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 fro the
graph as the difference between the
funda ental signal (frequency
response) and the desired har onic.
As an exa ple, a distortion curve that
is down 40 dB fro the funda ental
is equivalent to 1% distortion.
Mounting
CAUTION: Before atte pting to
suspend this speaker, consult a
certified structural engineer. Speaker
can fall fro i proper suspension,
resulting in serious injury and property
da age. Other enclosures ay be
suspended below one ILS 1564.
However, the co bined weight of
additional enclosures and all cables,
cla ps and other hardware ust not
exceed 304 pounds. The ILS 1564
weighs 96 pounds and the axi u
co bined weight suspended fro the
upper ost ounting bracket
asse blies ust not exceed 400
pounds. Maxi u enclosure angle
45 degrees. Use only the correct
ating hardware (forged shoulder
achinery eye bolt, Mil Spec
MIL51937-3). All associated rigging
is the responsibility of others.
Architectural an Engineering
Specifications
The loudspeaker syste shall have
an operating bandwidth of 47 Hz -
18.5 kHz. The no inal output level
shall be 95.0 dB when easured at a
distance of one eter with an input of
one watt. The no inal i pedance
shall be 8.0 oh s. The axi u
continuous power handling shall be
750 watts, axi u progra power
of 1,500 watts and a peak power input
of at least 3,000 watts, with a
ini u a plifier headroo of 3 dB.
The no inal radiation geo etry shall
be 70 degrees in the horizontal plane
and 65 degrees in the vertical plane.
The outside di ensions shall be
33.75 inches high by 19.38 inches
wide by 21.75 inches deep. The
weight shall be 96 pounds. The
loudspeaker syste shall be an
Architectural Acoustics odel
ILS 1564.
This product is anufactured under
U.S. patents 6,059,069 and
6,064,745.
3 + 2 YEAR LIMITED WARRANTY
NOTE: For details, refer to the
warranty state ent. Copies of
this state ent ay be obtained
by contacting Peavey Electronics
Corporation, P.O. Box Meridian,
Mississippi 39301-2898.
Neutrik®an Speakon®are registere tra emarks of Neutrik AG.

-90o
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315 Hz
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500 Hz
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800 Hz
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1.25 kHz
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630 Hz
ILS 1564H
Horizontal Polar Patterns 6 B per Division
5

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ILS 1564H
Horizontal Polar Patterns 6 B per Division
6

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630 Hz
ILS 1564H
Vertical Polar Patterns 6 B per Division
7

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ILS 1564H
Vertical Polar Patterns 6 B per Division
8

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ILS 1564V
Horizontal Polar Patterns 6 B per Division
9

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ILS 1564V
Horizontal Polar Patterns 6 B per Division
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ILS 1564V
Vertical Polar Patterns 6 B per Division
11

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ILS 1564V
Vertical Polar Patterns 6 B per Division
12

8.585
33.750
21.710
A
A
8.702
2.250
10.896
19.361
View A-A
2.250
29.250
8.283
11.125
2.250
ILS 1564 H
13

8.585
19.361
21.710
A
A
8.702
2.250
10.896
33.750
2.250
11.125
View A-A
2.250
29.250
8.283
ILS 1564 V
14

15
ILS™1564 INPUT

Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian • MS • 39301
[phone] • FAX [phone] • http://aa.peavey.com
©2000 Printed in the U.S.A. 9/00
80304692