ISIS-Series Loudspeakers
ISIS W-102M and ISIS 102M 10” two-way, medium dispersion
ISIS W-102W and ISIS 102W 10” two-way, wide dispersion
ISIS W-122M and ISIS 122M 12” two-way, medium dispersion
ISIS W-152M and ISIS 152M 15” two-way, medium dispersion
User Manual
EN
*TD-000119-00*
TD-000119-00 rev.B
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Introduction
Thank you and congratulations on your purchase of QSC’s ISIS multipurpose loudspeakers. These products represent the state-of-
the-art in lightweight SR (sound reinforcement) loudspeaker systems. To get the most from your investment, we encourage you to
review this manual carefully.
The ISIS 102M, ISIS 102W, ISIS 122M, and ISIS 152M loudspeaker systems are full range, high output, two-way designs deliver-
ing superior sound quality and high SPL in a lightweight, all-weather cored composite enclosure.
The ISIS W-102M, ISIS W-102W, ISIS W-122M, and ISIS W-152M loudspeaker systems are wooden enclosure versions and are
essentially identical with the exceptions of weight and weather resistance. These models offer an economical alternative to the
cored composite enclosures in high quality 13 to 18 ply baltic birch.
EN
Applications include flown arrays, yoke mounting, foldback stage monitors, and portable event use (pole mount). Hardware
options make the ISIS loudspeakers versatile and easy to reconfigure for mobile and touring sound companies. These loudspeak-
ers make an excellent choice for a wide variety of SR applications.
Do not install wooden enclosure models in exterior environments unless fully shield from the weather.
Product Features (ISIS 102M (handle on top) and ISIS W-102M (side recess) shown)
Note: Models featuring cored composite enclosures have a carrying handle on their top, whereas wooden enclosure models have
a handling recess on the side of the enclosure. A wooden enclosure is shown at the far right, below. Other views are of a cored
composite enclosure.
1- High-frequency driver/waveguide assembly (102W waveguide differs)
2- Low-frequency driver
3- Removable metal/foam grill
4- Fly track (top and bottom of cabinet)
5- Carrying handle
6- Rear pick-point
7- Connection panel with two Speakon® connectors wired in parallel and crossover mode selector switch
8- Pole cup (bottom of cabinet)
Note- Standard model shown. Custom product options may include hardware and connector variations.
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Coverage Angles
102M/122M/152M- These models are
equipped with 60° conical waveguides. HF
coverage remains constant regardless of
cabinet orientation.
Waveguide slot verti-
cally oriented: (102W
only; as shipped from
factory)
102W- Before mounting the loudspeaker,
determine the mounting orientation and
desired coverage angles. As supplied from
the factory, the loudspeaker’s coverage
angles are 150° (horizontal) x 50° (vertical)
with the cabinet oriented vertically. The
waveguide can be rotated to interchange
the coverage angles.
Waveguide slot hori-
zontally oriented: (102W
only; requires
EN
waveguide rotation)
Rotating the Waveguide to Alter
HF Coverage Pattern (102W only)
1- Remove the grill. It is held in place by
eight cap head screws.
2- Remove the four waveguide retaining
screws. A #2-size Phillips screwdriver is
recommended.
3- Reach into the waveguide’s port and
pull gently to remove the waveguide. Be
careful not to damage the connections,
wiring, or the gasket between the
waveguide and the cabinet. The aluminum
spacer ring must remain in place.
4- Rotate the waveguide 90° clockwise or
counterclockwise and set it back in place.
Make certain the wiring is not stressed or
pulled loose from its connections when
rotating the assembly.
5- Before reinstalling the waveguide
mounting screws, lift the assembly a small
distance and make sure that the gasket
and spacer ring are properly in place.
Reposition, if required. Set the waveguide
in place and install the screws. We recom-
mend the use of removable thread sealant
to prevent the screws from loosening. Do
not overtighten.
6- Replace the grill. We recommend the
use of removable threadlocker to prevent
the screws from loosening. Do not over-
tighten.
4
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Select the Desired Crossover Mode
All models are equipped with a Crossover Mode switch.
Before using, set the Crossover Mode switch to the desired
position using a flat-tip screwdriver. The switch has a slot-
ted shaft; insert the screwdriver tip into the slot and turn
the shaft so the slot points to the desired mode. Do not
change switch positions with power applied.
FULL RANGE: This setting uses the internal crossover net-
work. Connect the full-range input signal to Speakon pins
1+ and 1-.
FULL RANGE
BI-AMP
EN
BI-AMP: This setting bypasses the internal crossover net-
work and connects Speakon pins 1+ and 1- to the low-fre-
quency (LF) driver and pins 2+ and 2- to the high-frequency
(HF) driver. Signal processing ahead of the amplifier is
required; the HF driver can easily be damaged if full range
program is applied! Use a four-wire cable and an amplifier
configured to operate in bi-amp mode.
BIAMP OPERATION- Signal processing ahead
of the amplifier is required; the HF driver can
easily be damaged if full range program is
applied!
Make the Required Connections
All models are equipped with two Neutrik NL4-series air-
tight Speakon connectors. The two connectors are wired in
parallel, allowing for multiple cabinets to be connected in
parallel by plugging one cabinet into another with a suitable
cable.
Connector pinout is determined by the Crossover Mode
switch setting. Full Range selection uses Speakon pins 1+
and 1-. Bi-amp selection uses pins 1+ and 1- for the LF
driver, 2+ and 2- for the HF driver. There are pinout charts
printed on the connector plate.
Maintain proper speaker and amplifier con-
nection polarity throughout the entire system.
All positive-marked loudspeaker terminals
should be connected to positive-marked ampli-
fier output terminals. This will provide the best
possible low-frequency output from your sys-
tem.
Speakon plug pinouts- The Speakon plugs that are con-
nected to the loudspeaker cabinets should conform to the
pin outs shown at right. The connectors are shown from the
wire-insertion end and show the inside of the disassembled
Speakon plug.
5
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Recommended Fastener Torque
Fly track to cabinet-4.52 Nm (40 in-lb)
Pole cup to cabinet- 1.92 Nm (17 in-lb)
Waveguide to cabinet- 1.92 Nm (17 in-lb)
LF driver to cabinet- 1.92 Nm (17 in-lb)
Grill to cabinet-1.01 Nm (9 in-lb)
Connector plate to cabinet-1.01 Nm (9 in-lb)
EN
All fasteners should be checked for tightness
before loudspeaker use. If any fastener is loose
or is removed for any reason, ensure it is
installed using a torque-limiting tool to avoid
cabinet damage. Fly track hardware is safety-
critical and should be carefully checked before
suspending or rigging the cabinet.
6
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ISIS 102M Dimensions (ISIS 102W similar)
EN
Specifications are subject to change without notice.
7
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ISIS W-102M Dimensions (ISIS W-102W similar)
EN
Specifications are subject to change without notice.
8
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ISIS 122M Dimensions
EN
Specifications are subject to change without notice.
9
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ISIS W-122M Dimensions
EN
Specifications are subject to change without notice.
10
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ISIS 152M Dimensions
EN
Specifications are subject to change without notice.
11
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ISIS W-152M Dimensions
EN
Specifications are subject to change without notice.
12
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ISIS 102M and ISIS W-102M Specifications
102M Full Range Specifications (Crossover Mode switch set to Full Range, Passive)
Frequency Range (free field)
Frequency Response (-6 dB)
60-19k Hz
Usable Frequency Range (-10 dB) 50-20k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
118 dB SPL
124 dB SPL
116 dBA SPL
Nominal
8 ohms
Minimum
Maximum
6.7 ohms @ 3 kHz
50 ohms @ 35 Hz
Power Rating
rms Power Handling
Recommended Amplifier Power
Sensitivity
300 Watts, 100hrs, IEC 268-5, 50-20kHz, 6 dB crest factor
600 Watts
EN
1 W, 1 m free field
93 dB SPL
Nominal Coverage, -6 dB
Directivity Index & Q
Conical 60º
Frequency (Hz)
500
1000
DI (dB)
3.6
7.7
Q
2.3
5.9
9
2000
9.6
4000
8000
16000
10.7
9.8
9.3
11.7
9.6
8.5
102M Bi-Amp Specifications (Crossover Mode switch set to Bi-Amp, LF= low frequency transducer, HF= high frequency transducer)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
LF
HF
70-6.5k Hz
50-7k Hz
640-17k Hz
520-19.3k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
119 dB SPL
125 dB SPL
117 dBA SPL
127 dB SPL
133 dB SPL
Nominal
8 ohms
8 ohms
Minimum
Maximum
7.9 ohms @ 280 Hz
53 ohms @ 35 Hz
9.2 ohms @ 3.1 kHz
67 ohms @ 460 Hz
Power Rating
rms Power Handling (2 hrs., 6 dB crest factor, within usable freq. range) 300 W
80 W
Recommended Amplifier Power
Sensitivity
1 W, 1 m, free field, within usable freq. range
600 W
160 W
94 dB
108 dB
102M Bi-Amp with recommended DSP Parameters (QSC DSP configurations are available at the QSC website www.qscaudio.com)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
55-19k Hz
50-20k Hz
Nominal Coverage, -6 dB
Conical 60º
Directivity Index & Q (free field)
Frequency (Hz)
500
DI (dB)
4
9.3
13.3
10.8
9.8
Q
2.5
8.6
21.6
11.9
9.6
8.9
1000
2000
4000
8000
6000
9.5
Physical
Weight
Cored Composite: 16.8 kg net, 19.1 kg gross (37 lbs. net, 42 lbs. gross)
Wood: 21.3 kg net, 23.6 kg gross (47 lbs. net, 52 lbs. gross)
Specifications are subject to change without notice.
13
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ISIS 102W and ISIS W-102W Specifications
Full Range Specifications (Crossover Mode switch set to Full Range, Passive)
Frequency Range (free field)
Frequency Response (-6 dB)
60-20k Hz
Usable Frequency Range (-10 dB) 50-21k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
117.5 dB SPL
123.5dB SPL
116 dBA SPL
Nominal
8 ohms
Minimum
Maximum
7.8 ohms @ 180 Hz
50 ohms @ 35 Hz
Power Rating
rms Power Handling
Recommended Amplifier Power
Sensitivity
300 Watts, 100hrs, IEC 268-5, 50-20kHz, 6 dB crest factor
600 Watts
EN
1 W, 1 m free field
93 dB SPL
Nominal Coverage, -6 dB, waveguide as factory mounted
Directivity Index & Q
150º horizontal by 50° vertical
Frequency (Hz)
500
DI (dB)
4.2
Q
2.6
4.8
7.7
12.4
4.2
11.7
1000
6.8
2000
8.9
4000
8000
10.9
6.2
16000
10.7
Bi-Amp Specifications (Crossover Mode switch set to Bi-Amp, LF= low frequency transducer, HF= high frequency transducer)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
LF
HF
70-6.5k Hz
50-7k Hz
415- 20.5k Hz
355-20.7k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
120 dB SPL
126 dB SPL
119 dBA SPL
122 dB SPL
128 dB SPL
Nominal
8 ohms
8 ohms
Minimum
Maximum
7.6 ohms @ 330 Hz
56 ohms @ 35 Hz
7.4 ohms @ 550 Hz
57.2 ohms @ 855 Hz
Power Rating
rms Power Handling (2 hrs., 6 dB crest factor, within usable freq. range) 300 W
80 W
Recommended Amplifier Power
Sensitivity
1 W, 1 m, free field, within usable freq. range
600 W
160 W
94 dB
103 dB
Bi-Amp with recommended DSP Parameters (QSC DSP configurations are available at the QSC website www.qscaudio.com)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
55-19k Hz
45-20k Hz
Directivity Index & Q (free field)
Frequency (Hz)
500
DI (dB)
3.8
Q
2.4
1000
2000
4000
8000
6000
10.3
6.6
10.3
6.4
10.7
4.6
10.6
4.4
10.7
11.7
Physical
Weight
Cored Composite: 16.8 kg net, 19.1 kg gross (37 lbs. net, 42 lbs. gross)
Wood: 21.3 kg net, 23.6 kg gross (47 lbs. net, 52 lbs. gross)
Specifications are subject to change without notice.
14
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ISIS 122M and ISIS W-122M Specifications
Full Range Specifications (Crossover Mode switch set to Full Range, Passive)
Frequency Range (free field)
Frequency Response (-6 dB)
60-19k Hz
Usable Frequency Range (-10 dB) 50-20k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
120 dB SPL
126 dB SPL
119 dBA SPL
Nominal
8 ohms
Minimum
Maximum
6.8 ohms @ 15k Hz
58 ohms @ 30 Hz
Power Rating
rms Power Handling
Recommended Amplifier Power
Sensitivity
350 Watts, 100hrs, IEC 268-5, 50-20kHz, 6 dB crest factor
700 Watts
EN
1 W, 1 m free field
95 dB SPL
Nominal Coverage, -6 dB
Directivity Index & Q
Conical, 60°
Frequency (Hz)
500
1000
2000
4000
DI (dB)
4.4
7.9
Q
2.8
6.1
8.8
15.7
13.2
9.1
9.5
12.0
11.2
9.6
8000
16000
Bi-Amp Specifications (Crossover Mode switch set to Bi-Amp, LF= low frequency transducer, HF= high frequency transducer)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
LF
HF
600-19k Hz
500-20k Hz
70-3.9k Hz
50-4k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
121 dB SPL
127 dB SPL
120 dBA SPL
127 dB SPL
133 dB SPL
Nominal
8 ohms
8 ohms
Minimum
Maximum
7.9 ohms @ 305 Hz
52 ohms @ 32 Hz
8.5 ohms @ 4k Hz
69.0 ohms @ 450 Hz
Power Rating
rms Power Handling (2 hrs., 6 dB crest factor, within usable freq. range) 350 W
80 W
Recommended Amplifier Power
Sensitivity
1 W, 1 m, free field, within usable freq. range
700 W
160 W
96 dB
108 dB
Bi-Amp with recommended DSP Parameters (QSC DSP configurations are available at the QSC website www.qscaudio.com)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
55-19k Hz
45-20k Hz
Directivity Index & Q (free field)
Frequency (Hz)
500
DI (dB)
4.5
Q
2.8
1000
2000
4000
8000
6000
12.2
9.7
12.3
11.0
9.8
16.4
9.3
17.7
12.5
9.6
Physical
Weight
Cored Composite: 15.4 kg net, 18.6 kg gross (34 lbs. net, 41 lbs. gross)
Wood: 23.6 kg net, 26.8 kg gross (52 lbs. net, 59 lbs. gross)
Specifications are subject to change without notice.
15
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ISIS 152M and ISIS W-152M Specifications
Full Range Specifications (Crossover Mode switch set to Full Range, Passive)
Frequency Range (free field)
Frequency Response (-6 dB)
55-20k Hz
Usable Frequency Range (-10 dB) 45-20.7k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
120.5 dB SPL
126.5 dB SPL
120 dBA SPL
Nominal
8 ohms
Minimum
Maximum
6.3 ohms @ 16.4k Hz
52 ohms @ 23.6 Hz
Power Rating
rms Power Handling
Recommended Amplifier Power
Sensitivity
350 Watts, 100hrs, IEC 268-5, 50-20kHz, 6 dB crest factor
700 Watts
EN
1 W, 1 m free field
95.5 dB SPL
Conical, 60°
Nominal Coverage, -6 dB
Directivity Index & Q
Frequency (Hz)
500
DI (dB)
5.7
Q
3.7
1000
8.9
7.7
2000
4000
8000
16000
12.2
12.3
10.5
9.3
52.1
16.9
11.2
8.4
Bi-Amp Specifications (Crossover Mode switch set to Bi-Amp, LF= low frequency transducer, HF= high frequency transducer)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
LF
HF
60-2.6k Hz
50-3.7k Hz
630-16k Hz
450-20.7k Hz
Maximum Output
Calculated Continuous rms Output
Calculated Maximum Peak Output
Continuous Noise Exposure Level
Impedance
121 dB SPL
127 dB SPL
120 dBA SPL
127 dB SPL
133 dB SPL
Nominal
8 ohms
8 ohms
Minimum
Maximum
7.8 ohms @ 55 Hz
40 ohms @ 25 Hz
9.2 ohms @ 5.1k Hz
77 ohms @ 440 Hz
Power Rating
rms Power Handling (2 hrs., 6 dB crest factor, within usable freq. range) 350 W
80 W
Recommended Amplifier Power
Sensitivity
1 W, 1 m, free field, within usable freq. range
700 W
160 W
96 dB
108 dB
Bi-Amp with recommended DSP Parameters (QSC DSP configurations are available at the QSC website www.qscaudio.com)
Frequency Range (free field)
Frequency Response (-6 dB)
Usable (-10 dB)
50-20k Hz
45-21k Hz
Directivity Index & Q (free field)
Frequency (Hz)
500
DI (dB)
5.1
Q
3.4
1000
2000
4000
8000
6000
12.0
9.6
12.9
10.5
9.3
16.0
9.1
19.7
11.2
8.4
Physical
Weight
Cored Composite: 22.2 kg net, 25.4 kg gross (49 lbs. net, 56 lbs. gross)
Wood: 28.1 kg net, 31.3 kg gross (62 lbs. net, 69 lbs. gross)
Specifications are subject to change without notice.
16
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This page is intentionally blank so that each model’s performance curves appear on facing pages.
EN
17
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ISIS 102M Performance Curves (ISIS W-102M similar)
ISIS 102M Full Range (passive) Setting, Response and Impedance vs. Frequency
On Axis
30° Off Axis
EN
Impedance
Frequency (Hertz)
ISIS 102M Full Range (passive) Setting, Horizontal and Vertical Beamwidth vs. Frequency
Vertical
Horizontal
Frequency (Hertz)
18
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ISIS 102M Performance Curves (ISIS W-102M similar)
ISIS 102M Bi-Amp Setting, Individual Driver Response and Impedance vs. Frequency
HF On Axis
LF Impedance
LF On Axis
HF Impedance
EN
Frequency (Hertz)
1
ISIS 102M Bi-Amp Setting, Response vs. Frequency with Recommended Signal Processing
On Axis
30° Off Axis
Frequency (Hertz)
1
ISIS 102M Bi-Amp Setting, Beamwidth vs. Frequency with Recommended Signal Processing
Vertical
Horizontal
Frequency (Hertz)
19
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ISIS 102W Performance Curves (ISIS W-102W similar)
ISIS 102W Full Range (passive) Setting, Response and Impedance vs. Frequency
On Axis
50° Off Axis
100° Off Axis
EN
Impedance
Frequency (Hertz)
ISIS 102W Full Range (passive) Setting, Horizontal and Vertical Beamwidth vs. Frequency
Horizontal
Vertical
Frequency (Hertz)
20
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ISIS 102W Performance Curves (ISIS W-102W similar)
ISIS 102W Bi-Amp Setting, Individual Driver Response and Impedance vs. Frequency
HF On Axis
LF Impedance
LF On Axis
HF Impedance
EN
Frequency (Hertz)
1
ISIS 102W Bi-Amp Setting, Response vs. Frequency with Recommended Signal Processing
On Axis
50° Off Axis
100° Off Axis
Frequency (Hertz)
1
ISIS 102W Bi-Amp Setting, Beamwidth vs. Frequency with Recommended Signal Processing
Vertical
Horizontal
Frequency (Hertz)
21
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ISIS 122M Performance Curves (ISIS W-122M similar)
ISIS 122M Full Range (passive) Setting, Response and Impedance vs. Frequency
On Axis
30° Off Axis
EN
Impedance
Frequency (Hertz)
ISIS 122M Full Range (passive) Setting, Horizontal and Vertical Beamwidth vs. Frequency
Horizontal
Vertical
Frequency (Hertz)
22
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ISIS 122M Performance Curves (ISIS W-122M similar)
ISIS 122M Bi-Amp Setting, Individual Driver Response and Impedance vs. Frequency
HF On Axis
LF On Axis
LF Impedance
EN
HF Impedance
Frequency (Hertz)
1
ISIS 122M Bi-Amp Setting, Response vs. Frequency with Recommended Signal Processing
On Axis
30° Off Axis
Frequency (Hertz)
1
ISIS 122M Bi-Amp Setting, Beamwidth vs. Frequency with Recommended Signal Processing
Vertical
Horizontal
Frequency (Hertz)
23
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ISIS 152M Performance Curves (ISIS W-152M similar)
ISIS 152M Full Range (passive) Setting, Response and Impedance vs. Frequency
On Axis
30° Off Axis
Impedance
EN
Frequency (Hertz)
ISIS 152M Full Range (passive) Setting, Horizontal and Vertical Beamwidth vs. Frequency
Horizontal
Vertical
Frequency (Hertz)
24
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ISIS 152M Performance Curves (ISIS W-152M similar)
ISIS 152M Bi-Amp Setting, Individual Driver Response and Impedance vs. Frequency
HF On Axis
LF On Axis
LF Impedance
HF Impedance
EN
Frequency (Hertz)
1
ISIS 152M Bi-Amp Setting, Response vs. Frequency with Recommended Signal Processing
On Axis
30° Off Axis
Frequency (Hertz)
1
ISIS 152M Bi-Amp Setting, Beamwidth vs. Frequency with Recommended Signal Processing
Horizontal
Vertical
Frequency (Hertz)
25
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Notes:
EN
26
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How to Contact QSC Audio Products
Cómo comunicarse con QSC Audio Products
Comment prendre contact avec QSC Audio Products
Kontaktinformationen für QSC Audio Products
联系 QSC Audio Products
Mailing address:
QSC Audio Products, Inc.
1675 MacArthur Boulevard
Costa Mesa, CA 92626-1468 USA
Telephone Numbers:
Facsimile Numbers:
Main Number (714) 754-6175
Sales & Marketing (714) 957-7100 or toll free (USA only) (800) 854-4079
Customer Service(714) 957-7150 or toll free (USA only) (800) 772-2834
Sales & Marketing FAX(714) 754-6174
Customer Service FAX(714) 754-6173
World Wide Web:
E-mail:
QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA
“QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office.
©2003 QSC Audio Products, Inc.
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