ZLX Series
Loudspeaker
Owner’s Manual
ZLX-12P
ZLX-15P
ZLX- 12
ZLX- 15
Important Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
AVIS: RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
WARNING: CONNECT ONLY TO MAINS SOCKET WITH
PROTECTIVE EARTHING CONNECTION.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturers instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than
the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for
your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where
they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Unplug this apparatus during lightning storms or when unused for long periods of time.
13. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate normally, or has been dropped
14. To completely disconnect AC power from this apparatus, the power supply cord must be unplugged.
15. Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on
this apparatus.
16. The AC plug of the power supply cord shall remain readily operable.
The lightning flash with arrowhead symbol, within an equilateral
triangle is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating
and maintenance (servicing) instructions in the literature
accompanying the appliance.
The asterisk within an equilateral triangle is intended to inform
the user to necessary installation or removal instructions
regarding equipment or hardware use relating to the system.
Management of WEEE (waste electrical and electronic equipment) (applicable in Member States of the European
Union and other European countries with individual national policies on the management of WEEE) The symbol on the
product or on its packaging indicates that this product may not be treated as regular household waste, but has to be
disposed through returning it at an Electro-Voice dealer.
FCC Information
IMPORTANT: Do not modify this unit! Changes or modifications not expressly approved by the manufacturer could void the user’s
authority, granted by the FCC, to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
2
• Consult the dealer or an experienced radio/TV technician for help.
Electro-Voice ZLX Series Owner’s Manual
Precautions
If ZLX series loudspeakers are used outdoors on a sunny day, place the loudspeakers in a shaded or covered area
The loudspeaker amplifiers have protection circuits that temporarily shut the loudspeaker off when extremely high
temperatures are reached. This can happen on hot days when the loudspeaker is in direct sunlight.
Do not use ZLX series loudspeakers in an environment where temperatures exceed +40°C (104°F).
Never expose a ZLX series loudspeaker to rain, water, or high moisture.
Electro-Voice ZLX series loudspeakers are easily capable of generating sound pressure levels sufficient to cause
permanent hearing damage to anyone within normal coverage distance. Caution should be taken to avoid prolonged
exposure to sound pressure levels exceeding 90 dB.
Table of Contents
Important Safety Instructions .................................................................................................................................................................................. 2
FCC Information .......................................................................................................................................................................................................2
Precautions ................................................................................................................................................................................................................3
Description ..................................................................................................................................................................................................................4
Quick Setup ................................................................................................................................................................................................................4
System Features .......................................................................................................................................................................................................5
Tripod and Floor Monitor Operation ......................................................................................................................................................................6
Amplifier Controls ...................................................................................................................................................................................................... 8
LCD DSP Controls ....................................................................................................................................................................................................9
Recommended Configurations ............................................................................................................................................................................ 11
Specifications .......................................................................................................................................................................................................... 14
Dimensions ............................................................................................................................................................................................................... 16
Frequency Response Graphs .............................................................................................................................................................................. 18
ZLX Series Model Reference Table .................................................................................................................................................................... 20
Warranty Information .............................................................................................................................................................................................. 20
Troubleshooting ....................................................................................................................................................................................................... 21
Electro-Voice ZLX Series Owner’s Manual
3
Description
Thank you for choosing an Electro-Voice ZLX series powered and passive loudspeaker systems. Please take time to consult
this manual to understand all the features built into your Electro-Voice system and fully utilize its performance capabilities.
ZLX models cut through the competition with the most complete and innovative package of features in their class–all of
which work together to make it quicker and easier than ever to take control of your sound, whatever the gig. When choosing
a loudspeaker, it’s always wise to ask “What’s inside the box?” Then take a listen and hear the EV difference for yourself.
Featuring custom drivers housed in an innovative new cabinet design, the two compact and versatile ZLX models make EV’s
renowned sound quality and rugged reliability more accessible than ever before.
Quick Setup
The Electro-Voice ZLX series loudspeakers are fully integrated audio systems with carefully matched electronics and
transducers. These products make it easy to setup a high quality sound system quickly with a minimum amount of cables and
external electronics.
To get the ZLX series loudspeaker into operation as quickly as possible, please observe the following steps:
Step Illustration
1. Connect the AC power cord from a grounded line
receptacle to MAINS IN.
2. Switch POWER to ON.
3. Connect the 3.5 mm mini jack, XLR or TRS cable
from an audio source to AUX IN, INPUT 1 or
INPUT2.
4. Push and hold DSP knob to select application
MODE and LOCATION.
5. From the DSP home screen increase the input
gain knob while viewing the VU meters.
6. Slowly adjust MASTER VOL to the desired
volume.
4
Electro-Voice ZLX Series Owner’s Manual
System Features
ZLX-12P & ZLX-15P—Powered Loudspeaker Systems
The only loudspeaker in its class that matches EV-engineered drivers with a custom-built Class-D amplifier module and
powerful DSP. Whether pole-mounted or used as a floor monitor, ZLX delivers stunning sonic impact and intelligibility—the
legendary “EV Sound” the pros trust.
• ZLX-12P: 50 Hz–20 kHz; 126 dB max SPL; 1000 W (Class D).
• ZLX-15P: 42 Hz–20 kHz; 127 dB max SPL; 1000 W (Class D).
• 12 inch and 15 inch woofer for low-end punch in a compact enclosure and 1.5 inchhigh-frequency titanium
compression driver.
• LCD display and 1-knob DSP control with presets for precise and speedy setup.
• Input level meters and independent amplifier control to ensure optimal gain structure.
• Front LED for “power on” and “limit” indication.
• Patented split-baffle design for superior driver time alignment.
• Durable composite construction with innovative hi/lo grip design for easy pole mounting.
• LCD display allows for application and location EQ optimization.
• Innovative industrial design allows for professional look to match professional sound.
• Three handles including hi/lo grip ultimately makes for the most portable professional sound speaker on the market.
• Composite structure is built to last and provides road tested ruggedness.
• EV offers the best-in-class sound, design, and control using LCD controlled DSP that is inspired by EV’s concert tour
grade products.
ZLX- 12 —12 inch Passive Loudspeaker System
A compact and versatile loudspeaker featuring EV-engineered drivers in a rugged enclosure. Whether pole-mounted or used
as a floor monitor, ZLX delivers stunning sonic impact and intelligibility—the legendary “EV Sound” the pros trust.
• 12 inch woofer for low-end punch in a compact enclosure and 1.5 inch high-frequency titanium compression driver.
• Durable composite construction with innovative hi/lo grip design for easy pole mounting.
• Exclusive split-baffle design for superior driver time alignment.
• 55 Hz–20 kHz frequency range.
• 250 W continuous and 1000 W peak power handling.
• 95 dB SPL sensitivity; 125 dB max SPL.
ZLX- 15 —15 inch Passive Loudspeaker System
A compact and versatile loudspeaker featuring EV-engineered drivers in a rugged enclosure. Whether pole-mounted or used
as a floor monitor, ZLX delivers stunning sonic impact and intelligibility—the legendary “EV Sound” the pros trust.
• 15 inch woofer for extended low-frequency response and 1.5 inch high-frequency titanium compression driver.
• Durable composite construction with innovative hi/lo grip design for easy pole mounting.
• Exclusive split-baffle design for superior driver time alignment.
• 44 Hz–20 kHz frequency range.
• 250 W continuous and 1000 W peak power handling.
• 96 dB SPL sensitivity; 126 dB max SPL.
Electro-Voice ZLX Series Owner’s Manual
5
Tripod and Floor Monitor Operation
Floor Monitor
Electro-Voice ZLX series loudspeakers may be used as a floor monitor by placing the speaker on the integral monitor angle.
Make sure to:
• Place the speaker on a level, stable surface that is solid and secure.
• Route cables so that performers, production crew and audience members will not trip over the cables. Secure cables
with wire ties or tape whenever possible.
See Figures 1a and 1b for optimal coverage areas in front of the loudspeaker when in monitor position.
60º
OPTIMAL
COVERAGE
Figure 1a:
ZLX Optimum Coverage
(Front View)
90º
OPTIMAL
COVERAGE
Figure 1b:
ZLX Optimum Coverage
(Side View)
6
Electro-Voice ZLX Series Owner’s Manual
Tripod and Floor Monitor Operation (cont.)
Tripod
Electro-Voice ZLX series loudspeakers include 35 mm (1-3/8 in) stand mounts to allow mounting on tripod stands or above an
ELX118P. Make sure to:
• Check the specifications of the speaker stand to be certain it is capable of supporting the weight of the speaker.
• Check that the speaker stand is placed on a flat, stable surface and be sure to fully extend the legs of the stand.
Do not try to make the stand “taller” and compromise its structural integrity.
• Route cables and position the stand so that performers, production crew and audience members will not trip over the
stand or cables and pull the speaker system over. Secure cables with wire ties or tape whenever possible.
• Do not attempt to suspend more than one speaker on a stand designed for a single speaker.
• Unless you are confident that you can safely handle lifting the weight of the speaker onto the stand, ask another person
to help you place it.
Figure 2a:
ZLX on Tripod Stand
Electro-Voice ZLX Series Owner’s Manual 7
ZLX Full-Range/Sub Stack with Pole Mount
Figure 2b:
Amplifier Controls
The ZLX amplifier has a combination of controls and connectors to ensure the most versatile loudspeaker system. Each
component below has a description.
1. LCD-DSP Control & Monitoring Interface
2. MASTER VOL—Turn the dial to the right to increase the
sound level or turn the knob to the left to decrease the
sound level.
DSP—Push and hold the MASTER VOL knob to
enter the DSP settings. Turn the MASTER VOL knob to
scroll through the menu items. Push the MASTER VOL
knob again to select the menu items.
3. AUX IN—3.5 mm audio jack input for connecting
external audio media devices, such as MP3 players.
4. INPUT LEVEL—Level control for adjusting the individual
input’s sensitivity. LINE and MIC input level control is
available for both INPUT 1 and INPUT 2.
5. LINK OUTPUT—XLR output connector sends the
summation of all inputs’ signals to another speaker or
subwoofer.
6. XLR/TRS INPUT—Balanced input for the connection
of signal sources like mixing consoles, instruments or
micorphones. Connections can be established using 1/4
inch TRS or XLR connectors.
7. MAINS IN—AC connection is established via an IEC-
connector. The ZLX amplifier operates between
100V-240V (+-10%).
8. POWER—AC switch for switching the power ON or OFF.
The LCD screen lights up when the POWER is turned ON.
Figure 3:
ZLX-12P & ZLX-15P Amplifier Panel
8
Electro-Voice ZLX Series Owner’s Manual
LCD DSP Controls
An integrated LCD DSP control menu allows the user to select multiple DSP system settings on the loudspeaker.
ZLX-12P & ZLX-15P
LCD DSP Controls Menu
EXIT
MUSIC (Default)
MODE
LOCATION
TREBLE
DSP
BASS
SUB
LED
LCD DIM
CONTRAST
System
RESET
INFO
EXIT
LIVE
SPEECH
CLUB
POLE (Default)
MONITOR
BRACKET
0 dB (Default)
-10 dB to +10 dB
0 dB (Default)
-10 dB to +10 dB
OFF (Default)
80Hz
100Hz
120Hz
ELX118P
ON (Default)
OFF
LIMIT
ON (Default)
OFF
0 (Default)
-10 to +10
RESET ARE YOU SURE?
NO (Default)
YES
PRODUCT NAME
FIRMWARE VERSION
©2012 ELECTRO-VOICE
To access the LCD DSP controls menu, do the following:
1. Push and hold the MASTER VOL knob to enter the
LCD DSP controls menu.
The LCD DSP Controls menu appears.
2. Turn the MASTER VOL knob to scroll through the menu
items.
3. Push the MASTER VOL knob to select the menu item
you want to modify.
The focus moves to the menu items on the right side of
the LCD screen.
4. Turn the MASTER VOL knob to scroll through the
menu items.
5. Push the MASTER VOL knob to confirm the selected
menu items.
The setting is saved. The focus returns to the menu
items on the left side of the LCD screen.
6. Repeat steps 2–5 to modify additional DSP & system
settings.
7. Select EXIT to return to the home screen.
Electro-Voice ZLX Series Owner’s Manual
9
LCD DSP Controls (cont.)
Exit
The Exit menu is used to return to the home screen.
Mode
The Mode menu is used to configure the type of sound the louspeaker will deliver. The selection choices are MUSIC, LIVE,
SPEECH, or CLUB. The default selection is MUSIC.
• MUSIC—Used for recorded music playback.
• LIVE—Used for vocal and instrumental applications.
• SPEECH—Used for spoken word applications.
• CLUB—Used for recorded electronic music playback.
Location
The Location menu is used to optimize the loudspeaker for spacial and boundary variances. The selection choices are POLE,
MONITOR, or BRACKET. The default selection is POLE.
Treble
The Treble menu is used to configure the high frequencies of sound. The treble range is -10 dB to +10 dB. The default treble
level is zero (0).
Bass
The Bass menu is used to configure the low frequencies of sound. The bass range is -10 dB to +10 dB. The default bass level
is zero (0).
NOTE: Increasing Bass in CLUB mode reduces incrementally the overal loudspeaker’s max level capability.
Sub
The Sub menu is used to configure the presence of a subwoofer and its cross-over frequency. Select the OFF position if no
subwoofers are used with the system. Select the applicable cross-over frequency (80Hz, 100Hz, 120Hz, or ELX118P ) if a
subwoofer is used with the system. The default selection is OFF.
LED
The front LED is used to indicate the status of the loudspeaker. The selection choices are OFF, ON, or LIMIT. The limit
selection allows the user to visually confirm from the front of the loudspeaker if the protection status is active. The LED turns off
if the system is in LIMIT protection mode. The default selection is ON.
LCD DIM
The LCD DIM menu is used to congfigure the LCD screen to dim after 30 seconds of inactivity. This selection choices are ON
or OFF. The default selection is ON.
Contrast
The Contrast menu is used to increase or decrease the visibility of the LCD screen. The contrast range is -10 to +10. The
default contrast level is zero (0).
Reset
The Reset menu is used to revert the loudspeaker to the original factory default settings. The default selection is NO.
Info
The Info menu provides information about the system model and the firmware version.
Exit
The Exit menu is used to return to the home screen.
10
Electro-Voice ZLX Series Owner’s Manual
Recommended Configurations
Daisy-Chaining Full-Range Systems (Powered versions shown)
Vocal
Microphone
MP3
Player
Note: The direction of the arrow indicates the signal path.
Electro-Voice ZLX Series Owner’s Manual 11
Recommended Configurations (cont.)
Using Full-Range Systems as Monitors (Powered versions shown)
Instrument
Note: The direction of the arrow indicates the signal path.
12
Vocal
Microphone
Electro-Voice ZLX Series Owner’s Manual
Recommended Configurations (cont.)
Stacking Full-Range Systems w/Subwoofers (Stereo ZLX-12P with two ELX118P’s shown)
NOTE: ZLX-15P loudspeakers
may also be used in combination
with ELX118P subwoofers.
Mixer
Note: The direction of the arrow indicates the signal path.
Electro-Voice ZLX Series Owner’s Manual 13
Specifications—ZLX Powered
Model
(Part Number)
Freq. Response 1: 65 Hz – 18 kHz 55 Hz – 18 kHz
Freq. Range 1: 50 Hz – 20 kHz 42 Hz – 20 kHz
Max. Measured SPL: 126 dB 127 dB
Coverage (Horiz. x Vert.): 90° x 60°
Power Rating: 1000 Watts
LF Transducer: EVS-12K, 300 mm (12 in) Woofer EVS-15L, 380 mm (15 in) Woofer
HF Transducer: DH-1K
Connectors: (2) XLR/TRS Combo Jack, (1) 3.5 mm Input, and (1) XLR link Output
Enclosure Material: Polypropylene
Grille: 18 Gauge Steel with Black Powder Coat
Dimensions (H x W x D):
Net Weight: 15.6 kg (34.3 lbs) 17.3 kg (38.0 lbs)
Shipping Weight: 19.0 kg (41.8 lbs) 23.0 kg (50.7 lbs)
Accessories: ZLX-BRK, ZLX-12-CVR ZLX-BRK, ZLX-15-CVR
1
Using MUSIC DS P preset.
ZLX-12P
(ZLX-12P)
610 mm x 356 mm x 356 mm
(24 in x 14 in x 14 in)
685 mm x 423 mm x 383 mm
ZLX-15P
( ZLX-15P)
(27 in x 17 in x 15 in)
Electro-Voice ZLX Series Owner’s Manual14
Specifications—ZLX Passive
Model
(Part Number)
Freq. Response2: 82 Hz – 18 kHz 56 Hz – 18 kHz
Freq. Range: 55 Hz – 20 kHz 44 Hz – 20 kHz
Axial Sensitivity: 95 dB 96 dB
Max. Measured SPL: 125 dB 126 dB
Recommended HP Freq.: 40 Hz
Coverage (Horiz. x Vert.): 90° x 60°
Power Handling: 250 Watts Continuous, 1000 Watts Peak
LF Transducer(s): EVS-12K, 300 mm (12 in) Woofer EVS-15L, 380 mm (15 in) Woofer
HF Transducer: DH-1K
Cross-over Frequency: 2.1 kHz 1.7 kHz
Nominal Impedance: 8 Ω
Minimum Impedance: 7 Ω
Connectors: Dual NL4
Enclosure Material: Polypropylene
Grille: 18 Gauge Steel with Black Powder Coat
Dimensions (H x W x D):
Net Weight: 14.9 kg ( 32.8 lb) 16.6 kg (36.5 lb)
Shipping Weight: 18.0 kg ( 39.6 lb) 22.0 kg (48.3 lb)
Accessories: ZLX-BRK, ZLX-12-CVR ZLX-BRK, ZLX-15-CVR
2
Full Space Measurement, will have low frequency extension when mounted on floor or wall.
ZLX- 12
(ZLX-12)
610 mm x 356 mm x 356 mm
(24 in x 14 in x 14 in)
ZLX- 15
(ZLX-15)
685 mm x 423 mm x 383 mm
(27 in x 17 in x 15 in)
Electro-Voice ZLX Series Owner’s Manual
15
Dimensions—ZLX Powered
ZLX-12P
356 mm
[14 in]
356 mm
[14 in]
183 mm
[7 in]
43.4°
43.4°
610 mm
[24 in]
Rear ViewLeft ViewBottom View Front View
ZLX-15P
383 mm
[15 in]
43.4°
423 mm
[17 in]
685 mm
[27 in]
187 mm
[7 in]
43.4°
Front View Left ViewBottom View Rear View
Electro-Voice ZLX Series Owner’s Manual16
Dimensions—ZLX Passive
ZLX- 12
356 mm
[14 in]
356 mm
[14 in]
183 mm
[7 in]
43.4°
43.4°
Front View Left ViewBottom View Rear View
610 mm
[24 in]
ZLX- 15
383 mm
[15 in]
43.4°
423 mm
[17 in]
685 mm
[27 in]
187 mm
[7 in]
43.4°
Front View Left ViewBottom View Rear View
Electro-Voice ZLX Series Owner’s Manual
17
Frequency Response Graphs—ZLX Powered
ZLX-12P
110
100
90
Sensitivity (dB)
ZLX-15P
80
70
Frequency Response, Full Space, Live Mode
Frequency Response, Full Space, Music Mode
Frequency Response, Full Space, Speech Mode
Frequency Response, Full Space, Club Mode
50 100 1000 10000 20000
Frequency (Hz)
110
100
90
18
Sensitivity (dB)
80
70
Frequency Response, Full Space, Live Mode
Frequency Response, Full Space, Music Mode
Frequency Response, Full Space, Speech Mode
Frequency Response, Full Space, Club Mode
50 100 1000 10000 20000
Frequency (Hz)
Electro-Voice ZLX Series Owner’s Manual
Frequency Response Graphs—ZLX Passive
ZLX- 12
110
ZLX- 15
100
Sensitivity (dB)
90
80
70
Frequency Response, Full Space
Impedance
50 100 1000 10000 20000
Frequency (Hz)
100
Impedance (Ohms)
10
3.16
110
100
Sensitivity (dB)
90
80
70
Frequency Response, Full Space
Impedance
50 100 1000 10000 20000
100
Impedance (Ohms)
10
3.16
Frequency (Hz)
Electro-Voice ZLX Series Owner’s Manual 19
ZLX Series Model Reference Table
Commercial Code Description Finish
ZLX-12P-US 12” Two-Way Powered Loudspeaker Black
ZLX-12P-EU 12” Two-Way Powered Loudspeaker Black
ZLX-15P-US 15” Two-Way Powered Loudspeaker Black
ZLX-15P-EU 15” Two-Way Powered Loudspeaker Black
ZLX-12 12” Two-Way Passive Loudspeaker Black
ZLX-15 15” Two-Way Passive Loudspeaker Black
ZLX-BRKT ZLX Wall Mount Bracket Black
ZLX-12-CVR ZLX Padded Cover for ZLX-12/P -EV Logo Black
ZLX-15-CVR ZLX Padded Cover for ZLX-15/P -EV Logo Black
Warranty Information
Visit www.electrovoice.com for warranty information.
20
Electro-Voice ZLX Series Owner’s Manual
Troubleshooting
Problem Possible Cause(s) Action
1. No Sound Amplifier Connect a known working test speaker to the amplifier outputs. If there is no sound,
check that all the electronics are on, the signal routing is correct, the source is active,
the volume is turned up, and so on. Correct/repair/replace as necessary. If there is
sound, the problem is in the wiring.
Wiring Verify that you have connected the correct wire pairs to the amplifier. Play something
at low level through the amplifier (for example, from an MP3 device). Connect the test
speaker in parallel with the malfunctioning line. If the sound level has gone or is very
weak, the line has a short in it (possibly a severe scrape, pinch, or staple puncture). If
the sound level is normal, the wire is open (possibly a cut wire or a missed connection).
Using the test speaker, move down the line and test each connection/junction until you
find the problem and correct it. Observe proper polarity.
2. Poor
Low-Frequency
Response
3. Intermittent output
such as crackling
or distortion
4. Constant noise
such as buzzing,
hissing, or humming
5. No sound produced
with microphone
connected to INPUT 1
or INPUT 2
6. Sound is distorted
front LED is OFF, LCD
screen LIMIT is ON.
8. Microphone
produces acoustic
feedback when input
level is amplified.
If these suggestions do not solve your problem, contact your nearest Electro-Voice dealer or Electro-Voice distributor.
WITH SUB menucross-over frequency
activated
Faulty Connection Check all connections at amplifier and speakers to ensure they are all clean and tight. If
Defective source
or other electronic
device
Poor system
grounding or
ground loop
Incorrect gain
structure
Microphone requires
phantom power
Input gain knob is not
in the MIC position
Excessive input level Reduce the input level or loudspeaker level knobs to prevent limit.
Incorrect gain
structure or source
input (mixing console/
preamp) is overdriven
Incorrect gain structure Reduce the microphone levels at the mixing console or input source. If the microphone
MODE is set to
MUSIC or CLUB
Microphone position is
too close to the front of
the speaker
Select the OFF position if no subwoofers are used with this system. For further
information, see the LCD DSP Controls.
the problem persists, it may be in the amplifier or wiring. See Problem 1.
If the noise is present but no program material is playing, the likely cause is the signal
chain in the electronics. Evaluate each component as necessary to isolate the problem.
Check and correct the system grounding, as required.
Verify level controls of the source are properly structured by using the VU meeter
indicator on the LCD screen. If the VU meter bar is solid or the system indicates LIMIT
the input or source level is too high. For further information, see the Quick Setup.
Use a dynamic microphone that does not require phantom power. If using a
microphone that requires phantom power, an external phantom power source will be
needed.
Slowly increase the input gain knob level to engage the microphone pre-amp.
Verify level controls of the source are properly structured by using the VU meeter
indicator on the LCD screen. If the VU meter bar is solid or the system indicates LIMIT
the input or source level is too high. For further information, see the Quick Setup.
is connected directly to the speaker reduce the input level on the speaker. Positioning
the microphone close to the sound source will increase gain-before-feedback. See
Problem 6.
Change the MODE to LIVE or SPEECH. For further information, see LCD DSP
Controls.
Whenever possible setup the speakers so the microphone is behind them. If using the
speakers in a monitor position aim the speaker to the back of the microphone.
Electro-Voice ZLX Series Owner’s Manual 21
Electro-Voice
12000 Portland Avenue South, Burnsville, MN 55337
Phone: 952/884-4051, Fax: 952/884-0043
www.electrovoice.com
© Bosch Communications Systems 11/2012
Part Number F01U275181 Rev 01
U.S.A. and Canada only. For customer orders, contact Customer Service at:
800/392-3497 Fax: 800/955-6831
Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
+ 49 9421-706 0 Fax: + 49 9421-706 265
Other Internatonal locations. For customer orders, Contact Customer Service at:
+ 1 952 884-4051 Fax: + 1 952 887-9212
For warranty repair or service information, contact the Service Repair department at:
800/685-2606
For technical assistance, contact Technical Support at: 866/78AUDIO
Specifications subject to change without notice.
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