ZXA1-SUB - Subwoofer BOSCH - Free user manual and instructions

Product Type	Powered Subwoofer
Brand	Bosch (Electro-Voice)
Model	ZXA1-SUB
Enclosure Material	15 mm Plywood, Internally Braced, Textured Paint
Woofer	EVS-12S, 305 mm (12 in)
Amplifier Type	Class D Lightweight Amplifier
Power Rating	700 W
Frequency Response (-3 dB)	53 Hz – 93 Hz
Frequency Range (-10 dB)	44 Hz – 118 Hz
Max SPL	126 dB
Coverage	Omnidirectional
Crossover Frequency	100 Hz
Input Connectors	(2) XLR Stereo Input
Output Connectors	(2) XLR Stereo Output
Mains Requirements (120V)	90V - 132V, 1.0 A, 50-60 Hz
Mains Requirements (230V)	190V - 264V, 0.6 A, 50-60 Hz
Dimensions (H x W x D)	400 mm x 444.5 mm x 457.2 mm (15.75 in x 17.50 in x 18.00 in)
Net Weight	20.9 kg (46.0 lb)
Shipping Weight	26.5 kg (56.5 lb)
Pole Mount	35 mm (1-3/8 in) cup for full-range speaker above
Accessories (sold separately)	MP1-B Mounting Plate Kit, CA-ZX Truss Clamp Adapter, TSS-1 Tripod Stand
Safety Features	Over-temperature protection, limiter, grounding-type plug
Cleaning	Clean only with a dry cloth

Frequently Asked Questions - ZXA1-SUB BOSCH

How do I connect the ZXA1-SUB to a full-range speaker?

Use a speaker pole (max 1.2 m long) inserted into the pole mount cup on top of the subwoofer. Place a full-range speaker (max 11.3 kg) on the pole. Connect audio cables from your mixer or source to the XLR inputs of the subwoofer, then from the XLR outputs to the full-range speaker.

What is the Low-End Boost switch for?

The Low-End Boost switch adds extra low-frequency extension. Set to NORMAL for standard use; use BOOST when enhanced bass performance is desired.

How do I fix poor low-frequency response?

Check the POLARITY switch. If bass is weak, try setting it to REVERSE POLARITY to align phase between subwoofer and main speakers.

Why is the LIMIT LED constantly on?

Constant LIMIT LED indicates the amplifier is being overdriven. Reduce the LEVEL control to prevent distortion and protect the speaker.

Can I use this subwoofer outdoors?

Avoid exposing the subwoofer to rain, water, or high moisture. If used outdoors, place in a shaded area to prevent overheating. Do not exceed ambient temperature of +40°C (104°F).

What type of power cord does it use?

The subwoofer uses a standard IEC power cord (supplied). A locking IEC cord is also compatible.

How do I clean the subwoofer?

Clean only with a dry cloth. Do not use water or cleaning agents.

What is the maximum load on the pole mount?

The pole mount can support a full-range speaker weighing no more than 11.3 kg (25 lb) and using a pole no longer than 1.2 m (4 ft).

How do I suspend the subwoofer?

This subwoofer is not designed for suspension. Only the ZxA1 full-range model can be suspended using the MP1-B mounting plate kit (sold separately). Always follow local rigging regulations.

What should I do if there is no sound?

Check that the power is on, cables are connected correctly, and the LEVEL control is turned up. Verify the source signal is active. If using with a ZxA1, ensure the WITH SUB switch is not engaged on the full-range speaker.

USER MANUAL ZXA1-SUB BOSCH

Technical line drawing of a speaker enclosure with visible internal components and mounting holes (no text or symbols)

ZxA1
ZxA 1-Sub

Technical line drawing of a mechanical housing with circular components and mounting holes (no text or symbols)

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.

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.

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 plug of the power supply cord is used as a disconnect device.

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 A 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.
• Consult the dealer or an experienced radio/TV technician for help.

- If ZxA1 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 ZxA1 loudspeakers in an environment where temperatures exceed +40°C (104°F).

- Never expose a ZxA1 loudspeaker to rain, water, or high moisture.

- Electro-Voice ZxA1 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

Description 4

Quick Setup 4

System Features....5

Specifications 5

Tripod and Floor Monitor Operation 6

Suspending ZxA1 Loudspeakers....8

Rotating the Horn 9

Rotating the Logo 9

Amplifier Controls 10

ZxA1 Amplifier Controls 11

ZxA1-Sub Amplifier Controls....12

Recommended Configurations....13

Dimensions....17

Frequency Response Graphs....18

ZxA1 Model Reference Table....18

Troubleshooting....19

Description

Thank you for choosing an Electro-Voice ZxA1 powered loudspeaker system. Please take time to consult this manual to understand all the features built into your Electro-Voice system and fully utilize its performance capabilities.

Only to be expected from Electro-Voice, the ZxA1 packs a big-stage punch. Electro-Voice drivers, components, and amplifiers are legendary—all proven at the highest levels of live performance. ZxA1 wraps Electro-Voice technology in a durable, lightweight cabinet, resulting in the most powerful and versatile compact loudspeaker available today. Match ZxA1 with the ZxA1-Sub to create a truly exceptional professional sound system.

Quick Setup

The Electro-Voice ZxA1 powered loudspeakers are fully integrated audio systems with carefully matched electronics and transducers. These products make it easy to set up a high quality sound system quickly with a minimum amount of cables and external electronics.

To get the ZxA1 loudspeaker into operation as quickly as possible, please observe the following steps:

Step ZxA1 Illustration ZxA1-Sub Illustration
1. Turn knob to -∞.
2. Connect the AC power cord from a grounded line receptacle to MAINS IN.
3. For ZxA1, connect an XLR Mic cable to MIC IN or connect an audio source to LINE IN.ORFor ZxA1-Sub, connect the XLR cables to IN A.
4. Switch POWER to ON.
5. Slowly increase knob to the desired level.

ZxA1-8" Two-Way Powered Loudspeaker

The ZxA1 is a compact, powerful, and versatile choice for sound reinforcement and stage monitoring applications — lightweight and durable, with an 800 W amp.

• Lightweight and Durable ABS Enclosure
• Two-way loudspeaker with EV8L 8" Woofer and DH2005 Titanium Compression Driver
• Rotatable High Frequency Waveguide

• Class D Lightweight Amplifier

• Bi-Amplified Design with 24dB/Octave Filter Slopes and Transducer Protection

• Selectable 100Hz High Pass Filter for use with an External Subwoofer
• XLR/TRS Combo Line Input
• XLR Microphone Input with Gain Control
• XLR Summed Output
• LED Indicators for Power On and Limit
• Pole Mount
• 45° Monitor Angle

ZxA1 -Sub - 12" Powered Subwoofer

Optimized for performance with ZxA1, the ZxA1-Sub adds a deep, low-frequency, amplified punch you can hear and feel.

- 15 mm Plywood Enclosure, Internally Braced, with Textured Paint

• EVS-12S 305 mm (12") Woofer for Powerful, Engaging Bass Response
• Class D Lightweight Amplifier
• Pole Mount for Full-Range Systems
• Dual XLR Inputs and Outputs
• Switchable EQ Modes for Different Applications
• LED indicators for Power On and Limit

Specifications

Model ZxA1-90ZxA1-Sub
Freq. Response (-3dB):	60Hz-20 kHz ^1	53Hz-93 Hz ^2
Freq. Range (-10dB):	48Hz-20 kHz ^1	44Hz-118 Hz ^2
Max. Measured SPL:	126 dB ^1,3	126 dB ^2,3
Coverage (Horiz. x Vert.): 90° x 50° Omnidirectional
Power Rating: 800 W 700 W
LF Transducer: (1) EV-8L, 204 mm (8 in) Woofer (1) EVS-12S, 305 mm (12 in) Woofer
HF Transducer: DH-2005, 25 mm (1 in) Exit Compression Driver N/A
Crossover Frequency:	1.8 kHz	100 Hz
Connectors:	(1) XLR Mic Input with Gain Control, (1) XLR/TRS Combo Jack, (1) XLR Link Output	(2) XLR Stereo Input, (2) XLR Stereo Output
Enclosure Material:	ABS	9-ply, 15 mm Plywood, Internally Braced, with Textured Paint
Grille:	18 GA Steel with Black Powdercoat	16GA Steel with Black Powdercoat
Mains Requirements:	100 V: 80 V-110 V, 0.7 A, 50-60 Hz120 V: 95 V-132 V, 0.6 A ^4 , 50-60 Hz230 V: 190 V-264 V, 0.4 A ^4 , 50-60 Hz	120V: 90V-132 V, 1.0 A ^4 , 50-60 Hz230V: 190V-264 V, 0.6 A ^4 , 50-60 Hz
Dimensions (H x W x D):	457 mm x 282 mm x 264 mm(17.99 in x 11.10 in x 10.39 in)	400 mm x 444.5 mm x 457.2 mm(15.75 in x 17.50 in x 18.00 in)
Net Weight:	8.6 kg (19.0 lb)	20.9 kg (46.0 lb)
Shipping Weight:	10.3 kg (22.7 lb)	26.5 kg (56.5 lb)

1. Full-Space
2. Half-Space
3. Typical maximum SPL value at one meter over the usable frequency range, measured with a pink-noise burst signal, using internal signal processing and amplifier driven to peak output.
4. 1/8 power

Tripod and Floor Monitor Operation

Floor Monitor

Electro-Voice ZxA1 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 and position the stand so 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.

Figure 1: ZxA1 Monitor Position

Figure 2a: ZxA1 Pole Mount Location

Tripod and Floor Monitor Operation (cont.)

Tripod

Electro-Voice ZxA1 speakers include 35 mm (1-3/8 inch) stand mounts to allow mounting on tripod stands. Make sure to:

• Check the specifications of the speaker stand to be certain it is capable of supporting the weight of the speaker.
• Check the speaker stand is placed on a flat, stable surface and 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 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 you can safely handle lifting the weight of the speaker onto the stand, ask another person to help you place it.
• Tighten the set screw to minimize rattling and to prevent the speaker from rotating during use.

Pole Mount

Electro-Voice ZxA1-Sub speakers include 35 mm (1-3/8 inch) pole mount cups to allow mounting a full range speaker above it. Make sure to:

• Use a speaker pole that is no longer than 1.2 m (4 ft) and mount a speaker weighing no more than 11.3 kg (25 lb).
• Check that the ZxA1-SUB is placed on a flat and stable surface.

Line drawing of a speaker on a tripod stand, showing internal components and wiring (no text or symbols)

Figure 2b:
ZxA1 on Tripod Stand

Figure 2c:
ZxA1 and ZxA1-Sub Full-Range/Sub Stack with Pole Mount

Suspending ZxA1 Loudspeakers

Electro-Voice ZxA1 loudspeakers may be safely suspended with single stud fittings by using the MP1 suspension kit, or quickly attached to a truss by using the CA-Zx truss clamp adaptor (both sold separately). See MP1 or CA-Zx instruction sheets for proper assembly and use.

WARNING:

Suspending any object is potentially dangerous and should only be attempted by individuals who have a thorough knowledge of the techniques and regulations of rigging objects overhead. Electro-Voice strongly recommends that ZxA1 speakers be suspended taking into account all current national, federal, state, and local regulations. It is the responsibility of the installer to ensure that ZxA1 speakers are safely installed in accordance with all such regulations. If ZxA1 speakers are suspended, Electro-Voice strongly recommends that the system be inspected at least once a year. If any sign of weakness or damage is detected, remedial action should be taken immediately. There are instruction sheets for each EV Suspension and Array Kit that should also be consulted prior to suspending speakers.

Line drawing of a cylindrical electronic device with mounting feet and wiring (no text or symbols)

Figure 3:
MP1-B Mounting Plate Accessory

Technical line drawing of a mechanical device with attached components and mounting holes (no text or symbols)

Figure 4:
CA-ZX Truss Clamp Accessory

Rotating the Horn

The ZxA1 allows for the horn to be rotated for more effective coverage if desired. The horn is factory-installed with the 90° coverage in the horizontal plane and the 50° coverage in the vertical plane.

To rotate the horn, follow the steps below:

1. Remove the grille screws/grille assembly.
2. Remove the horn screws/horn assembly.
3. Rotate the horn assembly 90°.
4. Secure the horn assembly with the horn mounting screws.
5. Secure the grille assembly with the grille mounting screws.

Figure 5:
Rotating the ZxA1-90 Horn

Rotating the Logo

All versions of the ZxA1 (except the ZxA1-Sub) allow for the logo badge to be rotated, if desired. The logo badge is square and can be rotated in 90° increments.

To rotate the logo badge, follow the steps below:

1. Using a finger or flat-edge screwdriver (using care not to scratch grille), grip under the logo badge.
2. Pull the logo badge outwards from the logo recess until it fully clears the front surface of the grille.
3. Rotate the logo badge, in 90° increments, to the desired orientation.
4. Release the logo badge and let it "spring" back into the logo recess.

Figure 6:
Rotating the ZxA1 Logo

The ZxA1 amplifier has a combination of controls and connectors to ensure the most versatile loudspeaker system. Each component below has a description on the following pages.

Figure 7a:
ZxA1 Amplifier Panel

Figure 7b:
ZxA1-Sub Amplifier Panel

LIMIT

LIMIT

The LED brief blinking indicates the power amplifier is operated at its limits. Short-term blinking is not critical because the integrated limiter keeps distortion under control. Constant lighting of the LED indicates the sound is negatively affected. Reducing the output volume is strongly recommended.

MASTER

MASTER

Level control for adjusting the power amp's overall amplification. The level control affects the volume of the line input and microphone input. To prevent distortion and clipping of pre-linked mixing consoles, the control should generally be set to a value between 0 dB and +6 dB.

MIC

Level control for adjusting the microphone input level independent of the master level.

MIC IN

XLR input for low level signals like microphones. The MIC IN and LINE IN may both be used at the same time as a 2-channel mixer.

WITH SUB/FULL RANGE

When depressed, activates a 100 Hz highpass for use with a subwoofer, or if the ZxA1 is used as a floor monitor. A pen or paperclip is needed to depress the switch to WITH SUB mode.

LINE IN

LINE IN

Electronically balanced input for the connection of high-level signal sources like mixing consoles or signal processors. Connections can be established using 1/4-inch TRS or XLR-type connectors.

MASTER OUT

MASTER OUT

Output connector to send the signal to another speaker or subwoofer. The output is the sum of both the MIC IN and LINE IN.

POWER

AC switch for switching the ZxA1's power ON or OFF. The LED lights after turning the power ON. If the LED is not lit upon turning the power on, make sure the AC cord is correctly connected and the outlet is properly working.

MAINS IN

MAINS IN

AC connection is established via an IEC-connector. A 10 ft (3 m) long AC cord with fitting IEC-plug is supplied. Locking IEC power cords may also be used.

ZxA1-Sub Amplifier Controls

LIMIT

The LED brief blinking indicates the power amplifier is operated at its limits. Short-term blinking is not critical because the integrated limiter keeps distortion under control. Constant lighting of the LED indicates the sound is negatively affected. Reducing the output volume is strongly recommended.

LEVEL

Level control for adjusting the volume of the subwoofer. The level control affects the volume of both Channels A and B.

LOW-END BOOSTNORMAL

BOOST

The BOOST switch controls the low-frequency extension of the subwoofer. NORMAL works best when the subwoofer is used under normal applications. LOW-END BOOST provides additional low-frequency extension and works best for applications requiring enhanced bass performance.

REVERSE POLARITYNOR

POLARITY

The POLARITY switch controls the acoustic polarity of the subwoofer. When using with a ZxA1 and in most applications, the switch should always be set to NORMAL. If the bass output is low when using with other loudspeaker systems and subwoofers, try setting the switch to REVERSE POLARITY.

XLR INPUT

XLR input connector to receive the signal from another speaker or subwoofer.

XLR OUTPUT

XLR output connector to send the signal to another speaker or subwoofer.

POWER

AC switch for switching the ZxA1-Sub's power ON or OFF. The LED lights after turning the power ON. If the LED is not lit upon turning the power on, make sure the AC cord is correctly connected and the outlet is properly working.

MAINS IN

AC connection is established via an IEC-connector. A 10 ft (3 m) long AC cord with fitting IEC-plug is supplied.

Recommended Configurations

Daisy-Chaining Full-Range Systems (Dual ZxA1s)

Electro-Voice ZxA1 Series Owner's Manual

Recommended Configurations (cont.)

Using Full-Range Systems as Monitors (Dual ZxA1s)

Technical line drawing of a mechanical device with internal components and mounting holes (no text or symbols)

Technical line drawing of a device casing with internal components and mounting holes (no text or symbols)

graph TD
    A["Instrument"] --> B["Vocal Microphone"]
    B --> C["Electro-Voice"]
    C --> D["ZXA1"]
    D --> E["AMPLIFIED 3-MW LOGOSPEAKER SYSTEM, MAX WATTS"]
    D --> F["POWER"]
    D --> G["OFF"]
    D --> H["MAIN IN"]
    D --> I["MASTER OUT"]
    D --> J["LINE IN"]
    D --> K["FULLRANGE WITH SUST"]
    D --> L["MAINTS WITH SWITCH"]
    D --> M["MAINTS WITH SWITCH"]
    D --> N["MAINTS WITH SWITCH"]
    D --> O["MAINTS WITH SWITCH"]
    D --> P["MAINTS WITH SWITCH"]
    D --> Q["MAINTS WITH SWITCH"]
    D --> R["MAINTS WITH SWITCH"]
    D --> S["MAINTS WITH SWITCH"]
    D --> T["MAINTS WITH SWITCH"]
    D --> U["MAINTS WITH SWITCH"]
    D --> V["MAINTS WITH SWITCH"]
    D --> W["MAINTS WITH SWITCH"]
    D --> X["MAINTS WITH SWITCH"]
    D --> Y["MAINTS WITH SWITCH"]
    D --> Z["MAINTS WITH SWITCH"]
    D --> AA["MAINTS WITH SWITCH"]
    D --> AB["MAINTS WITH SWITCH"]
    D --> AC["MAINTS WITH SWITCH"]
    D --> AD["MAINTS WITH SWITCH"]
    D --> AE["MAINTS WITH SWITCH"]
    D --> AF["MAINTS WITH SWITCH"]
    D --> AG["MAINTS WITH SWITCH"]
    D --> AH["MAINTS WITH SWITCH"]
    D --> AI["MAINTS WITH SWITCH"]
    D --> AJ["MAINTS WITH SWITCH"]
    D --> AK["MAINTS WITH SWITCH"]
    D --> AL["MAINTS WITH SWITCH"]
    D --> AM["MAINTS WITH SWITCH"]
    D --> AN["MAINTS WITH SWITCH"]
    D --> AO["MAINTS WITH SWITCH"]
    D --> AP["MAINTS WITH SWITCH"]
    D --> AQ["MAINTS WITH SWITCH"]
    D --> AR["MAINTS WITH SWITCH"]
    D --> AS["MAINTS WITH SWITCH"]
    D --> AT["MAINTS WITH SWITCH"]
    D --> AU["MAINTS WITH SWITCH"]
    D --> AV["MAINTS WITH SWITCH"]
    D --> AW["MAINTS WITH SWITCH"]
    D --> AX["MAINTS WITH SWITCH"]
    D --> AY["MAINTS WITH SWITCH"]
    D --> AZ["MAINTS WITH SWITCH"]
    D --> BA["MAINTS WITH SWITCH"]
    D --> BB["MAINTS WITH SWITCH"]
    D --> BC["MAINTS WITH SWITCH"]
    D --> BD["MAINTS WITH SWITCH"]
    D --> BE["MAINTS WITH SWITCH"]
    D --> BF["MAINTS WITH SWITCH"]
    D --> BG["MAINTS WITH SWITCH"]
    D --> BH["MAINTS WITH SWITCH"]
    D --> BI["MAINTS WITH SWITCH"]
    D --> BJ["MAINTS WITH SWITCH"]
    D --> BK["MAINTS WITH SWITCH"]
    D --> BL["MAINTS WITH SWITCH"]
    D --> BM["MAINTS WITH SWITCH"]
    D --> BN["MAINTS WITH SWITCH"]
    D --> BO["MAINTS WITH SWITCH"]
    D --> BP["MAINTS WITH SWITCH"]
    D --> BQ["MAINTS WITH SWITCH"]
    D --> BR["MAINTS WITH SWITCH"]
    D --> BS["MAINTS WITH SWITCH"]
    D --> BT["MAINTS WITH SWITCH"]
    D --> BU["MAINTS WITH SWITCH"]
    D --> BV["MAINTS WITH SWITCH"]
    D --> BW["MAINTS WITH SWITCH"]

Recommended Configurations (cont.)

Stereo Full-Range Systems w/Subwoofers (Dual ZxA1s with Dual ZxA1-Subs)

graph TD
    A["Speaker"] --> B["Mixer"]
    B --> C["Motor"]
    C --> D["Electro-Voice"]
    D --> E["Power Control Module"]
    E --> F["Output"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333

Recommended Configurations (cont.)

Stereo Full-Range Systems w/Mono Subwoofer (Dual ZxA1s with a Single ZxA1-Sub)

graph TD
    A["Electro-Voice ZXA1"] -->|Mixer| B["Power Supply Unit"]
    A --> C["Audio System"]
    A --> D["Speaker Equipment"]
    A --> E["Switch Control Panel"]
    A --> F["Radio Station"]
    A --> G["Audio Receiver"]
    A --> H["Audio Headset"]
    A --> I["Radio Headset"]
    A --> J["Audio Signal Line"]
    A --> K["Radio Signal Line"]
    A --> L["Radio Signal Line"]
    A --> M["Radio Signal Line"]
    A --> N["Radio Signal Line"]
    A --> O["Radio Signal Line"]
    A --> P["Radio Signal Line"]
    A --> Q["Radio Signal Line"]
    A --> R["Radio Signal Line"]
    A --> S["Radio Signal Line"]
    A --> T["Radio Signal Line"]
    A --> U["Radio Signal Line"]
    A --> V["Radio Signal Line"]
    A --> W["Radio Signal Line"]
    A --> X["Radio Signal Line"]
    A --> Y["Radio Signal Line"]
    A --> Z["Radio Signal Line"]
    A --> AA["Radio Signal Line"]
    A --> AB["Radio Signal Line"]
    A --> AC["Radio Signal Line"]
    A --> AD["Radio Signal Line"]
    A --> AE["Radio Signal Line"]
    A --> AF["Radio Signal Line"]
    A --> AG["Radio Signal Line"]
    A --> AH["Radio Signal Line"]
    A --> AI["Radio Signal Line"]
    A --> AJ["Radio Signal Line"]
    A --> AK["Radio Signal Line"]
    A --> AL["Radio Signal Line"]
    A --> AM["Radio Signal Line"]
    A --> AN["Radio Signal Line"]
    A --> AO["Radio Signal Line"]
    A --> AP["Radio Signal Line"]
    A --> AQ["Radio Signal Line"]
    A --> AR["Radio Signal Line"]
    A --> AS["Radio Signal Line"]
    A --> AT["Radio Signal Line"]
    A --> AU["Radio Signal Line"]
    A --> AV["Radio Signal Line"]
    A --> AW["Radio Signal Line"]

Dimensions

ZxA1

Technical line drawing of a rectangular enclosure or enclosure with mounting holes and internal features (no text or symbols)

Left View

Front View Right View

Technical line drawing of a mechanical component with mounting holes and internal ribs (no text or symbols)

Line drawing of a cylindrical device with internal components and mounting points (no text or symbols)

Rear View

Bottom View

ZxA1-Sub

Top View

Technical line drawing of a mechanical housing or enclosure with mounting holes and internal components (no text or symbols)

Left View

Technical drawing of a circular mechanical component with concentric rings and a 400mm dimension label (no text or symbols beyond measurement)

Front View Right View Rear View

Pure electrical circuit lines without any symbols

Frequency Response Graphs

ZxA1-90

ZxA1-Sub

ZxA1 Model Reference Table

System Model/Commercial Code Coverage Finish Voltage
ZxA1-90B-100V 90° x 50° Black 100V
ZxA1-90W-100V 90° x 50° White 100V
ZxA1-90B-120V 90° x 50° Black 120V
ZxA1-90W-120V 90° x 50° White 120V
ZxA1-90B-230V 90° x 50° Black 230V
ZxA1-90W-230V	90° x 50° White 230V
ZxA1-SUB-120V Omnidirectional Black	120V
ZxA1-SUB-230V	Omnidirectional	Black 230V

Accessory Model/Commercial Code	Description
MP1-B	Mounting Plate Kit, Black Finish
CB1	Carrying Bag, Convertible, Black Finish
SC-ZX1	Slip Cover, Black Finish
CA-ZX	Truss Clamp Adapter, Black Finish
TSS-1	Tripod Speaker Stand
TSP-1	(2) TSS-1 Tripod Speaker Stands with Carrying Case

Troubleshooting

Problem Possible Cause(s) Action
1. No Sound Amplifier Connect a known working signal source to the amplifier inputs. If there is no sound, check all the electronics are on, the signal routing is correct, the source is active, the volume is turned up, and so on. If there is sound, the problem is in the wiring, or a component further up the signal chain.
	Wiring Verify you have connected the correct wire pairs to the amplifier.Play something at low level through the amplifier (for example, from a CD player or tuner). 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.
2a. Poor Low-Frequency Response with ZxA1	WITH SUB switch activated	Set the FULL RANGE/WITH SUB switch to the FULL RANGE position.
2b. Poor Low-Frequency Response with ZxA1-Sub	Incorrect polarity Set the NORMAL/REVERSE POLARITY to the opposite position.
3. Intermittent output such as crackling or distortion	Faulty connection or damaged cable	Check all connections in the signal chain to ensure they are clean and tight. If the problem persists, it may be in the amplifier or wiring. See Problem 1.
4. Constant noise such as buzzing, hissing, humming	Defective source or other electronic device	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.
	Poor system grounding or ground loop	Check and correct the system grounding, as required.
	Incorrect gain structure Verify level controls of the source are properly structured. Verify microphone cables are plugged into MIC IN and line level cables are plugged into LINE IN.
5. No sound produced with microphone connected to MIC IN	Microphone requires phantom power	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.
6. Sound is distorted.LIMIT LED is constantly on or flashing regularly	Excessive input level Reduce the Master Level or loudspeaker level knobs to prevent limit.
	Line level source plugged into MIC IN	Plug line level source into LINE IN
7. Sound is distorted.LIMIT LED is not blinking	Source input (mixing console/preamp) is overdriven	Verify level controls of the source are properly structured.
8. Microphone produces acoustic feedback when input level is amplified.	Incorrect gain structure Reduce the microphone levels at the mixing console or input source. If the microphone is connected directly to the speaker reduce the MIC LEVEL on the speaker. Positioning the microphone close to the sound source will increase gain-before-feedback.
	Microphone position is too close to the front of the speaker	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.
If these suggestions do not solve your problem, contact your nearest Electro-Voice dealer or distributor.

Visit www.electrovoice.com/warranty for warranty information.