Mackie SWA1801z Active Subwoofer System User's Manual

Safety Instructions & Warnings

⚠️ CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN.

⚠️ RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

ATTENTION: POUR ÉVITER LES RISQUES DE CHOC ÉLECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE PIÈCES INTÉRIEURES PAR L'USAGER. CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIÉ.

⚠️ AVIS: POUR ÉVITER LES RISQUES D'INCENDIE OU D'ÉLECTROCUTION, N'EXPOSEZ PAS CET ARTICLE À LA PLUIE OU À L'HUMIDITÉ.

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 of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

General Safety Instructions:

• 1. Read all safety and operation instructions before operating this Mackie product.
• 2. Retain these instructions for future reference.
• 3. Heed all warnings on the product and in these instructions.
• 4. Follow all operating and other instructions.
• 5. Do not use near water (e.g., bathtub, washbowl, kitchen sink, laundry tub, wet basement, swimming pool).
• 6. Clean only with a dry cloth.
• 7. Ensure proper ventilation; do not block openings with surfaces like beds or rugs, or place in built-in installations that impede airflow.
• 8. Position away from heat sources like radiators.
• 9. Connect only to the power supply type described or marked on the product.
• 10. Route power cords to prevent them from being walked on or pinched.
• 11. Take care to prevent objects from falling on or liquids from spilling into the product.
• 12. Service should only be performed by qualified personnel when: the power cord/plug is damaged; objects have fallen or liquid spilled; the product has been exposed to rain; it does not operate normally or shows a marked change in performance; or its chassis is damaged.
• 13. Do not attempt to service beyond what is described in this manual. Refer all other servicing to the Mackie Service Department.
• 14. To prevent electric shock, do not use a polarized plug with an extension cord or receptacle unless blades can be fully inserted.
• 15. Ensure grounding or polarization means are not defeated.
• 16. Unplug during lightning storms or when unused for long periods. Note that the product is not completely disconnected from AC mains when the power switch is OFF.
• 17. This apparatus complies with Canadian Department of Communications radio noise emission limits for digital apparatus.

WARNING: The heat sink may reach high temperatures during standard use. To ensure proper operation, allow a minimum of six inches of clearance from the heat sink surface and adequate ventilation.

WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.

WARNING: The cabinet has no rigging points and is not suitable for flying. Never attempt to suspend the cabinet by its handles.

Hearing Safety

Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary in susceptibility, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a period of time. The U.S. Government's Occupational Safety and Health Administration (OSHA) has specified permissible noise level exposures.

According to OSHA, exposure exceeding these limits can result in hearing loss. To prevent dangerous exposure to high sound-pressure levels, it is recommended that all persons exposed to equipment capable of producing these levels use hearing protectors (ear plugs or protectors) while this unit is in operation.

The SWA1801z can produce a maximum SPL of 135 dB @ 1m.

Introduction

Thank you for choosing Mackie's active sound reinforcement speaker systems. The SWA1801z is a high-output active subwoofer system featuring a high-precision 18" transducer and application-specific amplifier technology. It consists of a single, compact subwoofer cabinet with integrated control and amplifier electronics.

The SWA1801z accepts stereo or mono line-level signals via female XLR input jacks. Male XLR Thru jacks allow daisy-chaining to additional SWA1801z cabinets. The built-in crossover separates low frequencies from high frequencies, routing the high frequencies to the male XLR high-pass output jacks. These can connect to full-range active speakers (like the Mackie SA1521z) or an amplifier powering passive speakers.

A Phase switch allows 180° polarity reversal, and a Subwoofer Level control adjusts the balance between the subwoofer and full-range speakers. The integrated amplifier delivers 800 watts of continuous power and is mounted on a heatsink, eliminating the need for fans for increased reliability and reduced maintenance.

The cabinet is constructed from 15 mm thick multi-layered birch plywood, with integrated carrying handles and rear casters for transport.

Visit www.mackie.com for more information.

Rear Panel Description

The rear panel features the following controls and connectors:

1. POWER Switch: Turns the SWA1801z on and off. Ensure the signal source level is down before powering on.
2. AC Receptacle: Connects the AC linecord for power to the built-in amplifiers. Use a socket configured for your model.
3. LIMIT Indicator: Lights when the built-in limiter activates to prevent amplifier output from overdriving transducers. Occasional blinking is normal; continuous or frequent blinking indicates the need to reduce the level control.
4. SIGNAL Present Indicator: Illuminates when a signal is present at the FULL RANGE INPUT connector.
5. THERMAL Indicator: Lights if the internal temperature exceeds safe operating levels, muting the signal to allow cooling. Normal operation resumes once cooled. If frequent activation occurs, address thermal issues (see Thermal Considerations).
6. POWER Indicator: A green LED that lights when the POWER switch is ON and AC power is connected, indicating the unit is ready. A similar blue LED is on the front panel.
7. FULL RANGE INPUT: Female XLR connectors accepting a balanced line-level signal from a mixing console or other source.
8. THRU (FULL RANGE OUTPUT): Male XLR connectors outputting the same signal as the FULL RANGE INPUT. Used for daisy-chaining multiple SWA1801z units.
9. HIGH PASS (MID/HIGH FREQ) OUTPUT: Male XLR connectors outputting frequencies above 120Hz. Connect to full-range active speakers or an amplifier/passive speaker combination.
10. SUBWOOFER LEVEL Control: Adjusts the subwoofer's output level. The center detent provides a starting point for balancing with main speakers.
11. PHASE: Reverses the subwoofer output polarity by 180°. Experiment with this switch to optimize low-frequency response based on speaker placement.

Diagram Description: The rear panel features a power switch, AC receptacle, various indicators (LIMIT, SIGNAL, THERMAL, POWER), XLR input/output connectors (FULL RANGE INPUT, THRU, HIGH PASS), a SUBWOOFER LEVEL control, and a PHASE switch. Power specifications and certifications (CE) are also visible.

Hookup Diagrams

The following diagrams illustrate common connection scenarios:

• 2 SWA1801z with 2 SA1521z: Two SWA1801z subwoofers are connected to two Mackie SA1521z full-range speakers. Line-level mid/high signals are sent to the SA1521z speakers, while the SWA1801z units handle low frequencies. Power cords are connected to each unit.
• 2 SWA1801z with Stereo Amplifier and 2 C300z: Two SWA1801z subwoofers are connected to a stereo power amplifier driving two C300z full-range speakers. The signal path involves line-level inputs to the SWA1801z, with high-pass outputs feeding the stereo amplifier. Power cords are connected to all components.
• 1 SWA1801z with 2 SRM450s: One SWA1801z subwoofer is connected to two Mackie SRM450 full-range speakers. Line-level signals are sent to the SRM450s, and the SWA1801z handles low frequencies. Power cords are connected to each unit.
• 1 SWA1801z with Stereo Amplifier and 2 C300z: One SWA1801z subwoofer is connected to a stereo power amplifier driving two C300z full-range speakers. The SWA1801z receives the low frequencies, and its high-pass output feeds the stereo amplifier. Power cords are connected to all components.

Connections

The SWA1801z features two female XLR inputs for balanced line-level signals, wired per AES standards (Pin 2: Hot, Pin 3: Cold, Pin 1: Shield).

For unbalanced signals, connect the signal high (hot) to Pin 2 and the unbalanced ground to the input low (Pin 3) and ground (Pin 1). For ground-loop issues, connect the unbalanced ground only to Pin 3, leaving Pin 1 disconnected.

Four male XLR connectors are provided:

• THRU (FULL RANGE OUTPUT): Outputs the exact same signal as the input, allowing daisy-chaining of multiple SWA1801z units.
• HIGH PASS (MID/HIGH FREQ) OUTPUT: Outputs frequencies above 120Hz, suitable for connecting to full-range speakers or an amplifier.

Diagram Description: Diagrams illustrate balanced XLR connections with Hot, Cold, and Shield pins. An unbalanced male XLR connector diagram shows wiring for unbalanced signals.

Placement

The SWA1801z is designed for floor mounting. A socket on top accommodates Mackie SA1521z or SRM450 active speakers using an optional mounting pole (SPM100).

VERY IMPORTANT: As with any powered components, protect the SWA1801z from moisture. If used outdoors, ensure it is under cover, especially if rain is expected.

WARNING: The cabinet has no rigging points and is not suitable for rigging. NEVER attempt to suspend the SWA1801z by its handles.

AC Power

Ensure the SWA1801z is plugged into an outlet capable of supplying the correct voltage for your model. Voltage drops below 97% of specified line voltage may prevent amplifiers from reaching full rated power. Ensure the electrical service can supply sufficient amperage for all connected components.

A robust AC power supply is recommended due to the high current demands of the amplifiers. Insufficient AC power can lead to reduced output and poor bass performance.

VERY IMPORTANT: Never remove the ground pin on the power cord. This is very dangerous.

Thermal Considerations

The SWA1801z features an 800-watt amplifier module mounted on a large heatsink for efficient cooling via convection. Adequate airspace (at least six inches) behind the loudspeaker is crucial for proper operation and longevity.

If the amplifier overheats, a built-in thermal switch will mute the signal until the unit cools down. If this occurs frequently, reduce the level control on the source or subwoofer, or ensure the room temperature is not excessively high. Aiming a fan at the rear panel can help improve airflow.

Service Information

For troubleshooting, consult the following or visit the Mackie website (www.mackie.com/support) for FAQs, documentation, and user forums.

Troubleshooting

• No Power: Check if plugged in, if the AC outlet is live, and if the POWER switch is ON. Verify the POWER LED is green. If not, the AC line fuse may be blown (not user-serviceable; see Repair).
• No Sound: Verify input LEVEL controls are up, signal source is working, and cables are secure. Ensure the mixing console output is sufficient. Check for mixer Mute or Processor loop engagement. Ensure thermal protection is not active (check ventilation).
• Poor Bass Performance: Check speaker polarity connections. Try the PHASE switch on the rear panel.
• Poor Sound (Loud & Distorted): Ensure signal chain levels are not too high (not overdriving). Verify input connectors are fully plugged in and secure. Periodically clean electrical connections.
• Noise: Ensure all connections to active loudspeakers are good. Route signal cables away from AC cables, power transformers, and EMI-inducing devices. Avoid light dimmers or SCR-based devices on the same AC circuit; use an AC line filter or a different circuit.
• Hum: Disconnect the input cable; if hum disappears, it may be a ground loop. Use balanced connections, plug audio equipment into outlets sharing a common ground, and keep distances to ground short.

Repair

For warranty repair or replacement, refer to the warranty information. Non-warranty repairs are available at factory-authorized service centers. Locate one via www.mackie.com under "Support." For assistance, call Tech Support at 1-800-898-3211 (Monday-Friday, 7 am - 5 pm Pacific Time).

Need Help? Contact technical support at 1-800-898-3211 (Monday-Friday, 7 AM - 5 PM PST). After hours, visit www.mackie.com/support or email techmail@mackie.com.

SWA1801z Specifications

System Specifications

• Frequency Range (-10 dB): 35 Hz–120 Hz
• Frequency Response (-3 dB): 45 Hz–120 Hz
• Maximum SPL @ 1m: 129 dB
• Peak Output @ 1m: 135 dB
• Crossover Frequency: 120 Hz (12 dB/octave)
• Input Type: Balanced differential
• Input Impedance: 50 kΩ
• Input Protection: Level protected, Input stage muting, auto-reset
• Enclosure Geometry: Rectangular
• Mounting Methods: Floor mount only

Transducer Specifications

• Low-Frequency Transducer Diameter: 18" (457 mm)
• Voice Coil Diameter: 4.0" (102 mm)

Power Amplifier

• Low-Frequency Power Amplifier Rated Power: 800 Watts continuous, 1000 Watts peak
• Rated THD: < 0.03%
• Cooling: Passive

Line Input Power

• US: 120 V, 60 Hz
• Europe: 230 V, 50 Hz

Physical Properties

• Height: 28.5" (724 mm)
• Width: 23.5" (597 mm)
• Depth: 23.5" (597 mm)
• Weight: 132 lbs. (60 kg)
• Enclosure: 15 mm thick multi-layered baltic birch wood

Diagram Description: The dimensions diagram shows the front, side, and top views of the SWA1801z subwoofer with measurements in inches and millimeters.

Graph Description: The SWA1801z On Axis Frequency Response graph plots Sound Pressure Level (SPL) in dB against Frequency in Hz. It displays the Fundamental, Second, and Third harmonic components of the response.

WARNING: The cabinet has no rigging points and is not suitable for rigging. NEVER attempt to suspend the SWA1801z by its handles.

SWA1801z Limited Warranty

LOUD Technologies Inc. warrants materials, workmanship, and operation for three years from the original purchase date. An additional 24-month Extended Warranty may be purchased. This warranty applies to equipment sold and delivered within the U.S. and Canada by LOUD Technologies Inc. or its authorized dealers.

To Obtain Warranty Service:

• Register your product online or via mail.
• Unauthorized service, repairs, or modifications void the warranty.
• A copy of the sales receipt from the authorized dealer is required to establish purchase date.
• Call Mackie Technical Support at 800/898-3211 (Mon-Fri, 7 AM - 5 PM Pacific Time) for authorization. Alternatively, use the website support section for advance replacement requests.
• For repair, obtain a Service Request Number from Technical Support. Pack the product in its original carton with a note explaining the problem, a copy of the sales receipt, your contact information, and the Service Request Number. Ship freight prepaid to the authorized service center. Write the Service Request Number prominently on the box.

IMPORTANT: The Service Request Number must be clearly written on the shipping carton. No receipt, no warranty service.

LOUD Technologies may require proof of purchase and reserves the right to inspect products. Refurbished parts may be used for repairs. Products not meeting warranty terms will be repaired only upon payment for labor, materials, and freight. Repairs are warranted for 90 days or the remainder of the warranty period.

This warranty is extended to the original purchaser and may be transferable for a nominal fee with a copy of the original sales receipt. This is the sole warranty; LOUD Technologies disclaims all other warranties, express or implied. LOUD Technologies is not liable for incidental, special, or consequential damages.

Contact Information

Mackie

16220 Wood-Red Road NE • Woodinville, WA 98072 • USA

United States and Canada: 800.898.3211

Europe, Asia, Central and South America: 425.487.4333

Middle East and Africa: 31.20.654.4000

Fax: 425.487.4337

Website: www.mackie.com

Email: sales@mackie.com