Mackie Speaker SWA1801Z User Manual

SWA1801Z

ACTIVE SUBWOOFER

SYSTEM USER’S MANUAL

ACTIVE

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Lend Me Your Ears

According to OSHA, any exposure in excess

of these permissible limits could result in some

hearing loss. To ensure against potentially dan-

gerous exposure to high sound-pressure levels,

it is recommended that all persons exposed to

equipment capable of producing these levels use

hearing protectors while this unit is in opera-

tion. Ear plugs or protectors in the ear canals or

over the ears must be worn when operating this

ampliﬁcation system in order to prevent a per-

manent hearing loss if exposure is in excess of

the limits set forth here.

Exposure to extremely

high noise levels may

cause permanent hear-

ing loss. Individuals vary

considerably in suscepti-

bility to noise-induced hearing loss, 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

the permissible noise level exposures shown in

this chart.

Duration Per Day Sound Level dBA, Typical

In Hours

Slow Response

Example

Duo in small club

Subway Train

100

102

105

110

115

Very loud classical music

The SWA1801z

can produce a

maximum SPL of

135 dB @ 1m

1.5

Patrice screaming at Ron about deadlines

Loudest parts at a rock concert

0.5

0.25 or less

CONTENTS

Lend Me Your Ears ...........................................................3

INTRODUCTION...............................................................3

REAR PANEL DESCRIPTION...........................................4

HOOKUP DIAGRAMS......................................................5

CONNECTIONS................................................................6

PLACEMENT.....................................................................6

AC POWER ......................................................................7

THERMAL CONSIDERATIONS........................................7

SERVICE INFORMATION.................................................7

Warranty Service ......................................................7

Troubleshooting........................................................7

Repair........................................................................9

SWA1801z SPECIFICATIONS .......................................10

SWA1801z LIMITED WARRANTY .................................11

INTRODUCTION

M•1400i and C300z. A Phase switch gives you the

option of reversing the polarity of the signal to the

subwoofer by 180º. A Subwoofer Level control

allows you to adjust the balance between the sub-

woofer and the full-range speakers.

The built-in ampliﬁer produces 800 watts of

continuous power. The ampliﬁer module sits on

a heatsink that eliminates the need for fans,

dramatically extending life expectancy, and

eliminating maintenance cycles. A tremendous

beneﬁt of having the ampliﬁer located within the

subwoofer cabinet is that the SWA1801z functions

as a system, optimizing acoustic, electronic, and

mechanical designs to achieve the highest level of

performance and value.

Thank you for choosing Mackie’s active

sound reinforcement speaker systems.

The SWA1801z is a high-output active sub-

woofer system. It features a high-precision 18"

transducer combined with application-speciﬁc

ampliﬁer technology. The system is composed of

a single, compact subwoofer cabinet with built-in

control and ampliﬁer electronics.

Connecting and setting up the SWA1801z is

a breeze. It accepts a stereo or mono line-level

signal via female XLR input jacks. Male XLR

Thru jacks are provided for daisy-chaining the

signal to additional SWA1801z cabinets. The

built-in crossover separates the low frequencies

from the high frequencies, and routes the high

frequencies to the male XLR high-pass output

jacks. Connect these to the inputs of full-range

active speakers such as the Mackie SA1521z,

or to an ampliﬁer powering a pair of passive

speakers such as a combination of the Mackie

The cabinet is constructed with 15 mm thick

multi-layered birch plywood. Carrying handles are

integrated into each side for easy loading, and cast-

ers are attached to the rear for easy transport.

Don’t forget to visit our website at www.mackie.com

for more information about this and other Mackie products.

Part No. 0017284 Rev. A 9/05

REAR PANEL DESCRIPTION

POWER Switch

POWER Indicator

Use this switch to turn the SWA1801z on

and off. Make sure the signal source’s level

control is turned down before you turn it on.

When the POWER switch is turned on

and the linecord is connected to an active

AC power supply, this indicator lights green

to let you know that you’re ready to rock

and roll. The cool blue LED on the front of

the cabinet works in the same way.

AC Receptacle

This is where you connect the AC linecord

to provide AC power to the SWA1801z’s

built-in power ampliﬁers. Plug the linecord

into an AC socket properly conﬁgured for

your particular model.

FULL RANGE INPUT

These are female XLR-type connectors

that accept a balanced line-level signal from

a mixing console or other signal source.

LIMIT Indicator

THRU (FULL RANGE OUTPUT)

The SWA1801z has a built-in limiter that

prevents the ampliﬁer outputs from over-

driving the transducers. The LIMIT indicator

lights when the limiter is activated. It’s okay

for the LIMIT indicator to blink occasionally,

but if it blinks frequently or lights continu-

ously, turn down the level control until the

LIMIT indicator only blinks occasionally.

These are male XLR-type connectors

that produce exactly the same signal that is

connected to the FULL RANGE INPUT jack.

Use it to daisy-chain several SWA1801z's

together off the same signal source.

HIGH PASS (MID/HIGH FREQ) OUTPUT

These are male XLR-type connectors

that produce the frequencies above 120Hz.

Connect these to a pair of full-range active

speakers or to an amplifer/passive speaker

combination. The SWA1801z reproduces

the frequencies below 120Hz.

SIGNAL Present Indicator

This LED illuminates whenever there is

a signal present at the FULL RANGE INPUT

connector on the rear panel.

THERMAL Indicator

SUBWOOFER LEVEL Control

The SWA1801z has a thermal protection

circuit that monitors the internal tempera-

ture of the ampliﬁers and heatsink. If the

internal temperature should exceed a safe

operating level, this indicator lights and the

signal is muted to allow the ampliﬁer to cool.

When the temperature cools to a safe level

once again, the thermal protection circuit

deactivates and normal operation resumes.

Note: Activation of the thermal protection

circuit is an indication that you should take

steps to avoid continued thermal problems.

See “Thermal Considerations” on page 7.

This adjusts the subwoofer level. The

center detent position provides 15 dB of

headroom with a nominal +4 dBu input

signal. Use this as a starting point for setting

the balance between the subwoofer and the

main speakers.

PHASE

This switch reverses the polarity of the

subwoofer output. Depending on the place-

ment of the SWA1801z subwoofer relative

to the full-range speakers, you may get a

better low-frequency response in the room

if you reverse the polarity of the subwoofer’s

signal. Experiment with this switch to de-

termine which position sounds best.

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CONNECTIONS

The THRU output connectors allow you

to connect more than one SWA1801z to

your system. Simply plug the signal source

(i.e., mixer output) into the ﬁrst speaker’s

FULL RANGE INPUT jacks, and patch that

speaker’s THRU jacks to the next speaker’s

INPUT jacks, and so on, daisy-chaining mul-

tiple speakers.

The THRU jack is wired straight from the

FULL RANGE INPUT connector — there is no

electronic circuitry between — so the signal

coming out of the THRU jack is exactly the

same as the signal going in.

The SWA1801z has two female XLR in-

puts that accept a balanced line-level signal.

When connecting a balanced signal, be sure

it’s wired per AES (Audio Engineering

Society) standards:

XLR

Hot (+)

Cold (–)

Shield (Ground)

Pin 2

Pin 3

Pin 1

The HIGH PASS OUTPUT jacks provide

a line-level signal of the frequencies above

120Hz that you connect to a pair of active

speakers (or to a stereo ampliﬁer powering

a pair of passive speakers).

PLACEMENT

The SWA1801z subwoofer is designed

to sit on the ﬂoor. A socket is provided on

the top of the SWA1801z for mounting

the Mackie SA1521z or SRM450 active

speakers. Use the optional Mackie speaker

mounting pole (SPM100) to mount them

on the SWA1801z (see Hookup Diagram on

page 5).

Balanced XLR Connectors

If connecting an unbalanced signal to the

SWA1801z balanced input, be sure that the

signal high (hot) connection is wired to Pin

2 and the unbalanced ground connection

is wired to the low and the ground connec-

tions of the balanced input (Pins 3 and 1).

If there are ground-loop problems, try con-

necting the unbalanced ground connection

only to the input low connection (Pin 3),

and leaving the input ground connection

disconnected.

As with any powered

components, protect the

SWA1801z from exposure

to moisture. If you are

setting them up outdoors,

make sure they are under

cover if you expect rain.

There are also four male XLR connectors

labeled THRU (FULL RANGE OUTPUT) and

HIGH PASS (MID/HIGH FREQ) OUTPUT

These are also wired according to the

AES standard.

WARNING: The cabinet

has no rigging points and

is not suitable for rigging.

NEVER attempt to sus-

pend the SWA1801z by

its handles.

Unbalanced Male XLR Connector

AC POWER

If the thermal switch activates frequently,

try turning down the level control a notch

or two on the mixing console (or other

signal source) or on the subwoofer itself to

avoid overheating the ampliﬁers.

If the temperature in the room is too

high, it could cause the ampliﬁer to over-

heat. In this case, you should try aiming

a fan at the rear panel to move more air

across the heatsink panel.

Be sure the SWA1801z is plugged into

an outlet that is able to supply the correct

voltage speciﬁed for your model. If the volt-

age should drop below 97% of the speciﬁed

line voltage, the built-in ampliﬁers will no

longer be able to supply rated power. (They

will continue to operate down to 80% of

the rated line voltage, but won’t reach full

power, resulting in lower headroom.)

Be sure the electrical service can supply

enough amperage for all the components

connected to it.

We recommend that a stiff (robust)

SERVICE INFORMATION

supply of AC power be used because the

ampliﬁers place high current demands on

the AC line. The more power that is avail-

able on the line, the louder the speakers

will play and the more peak output power

will be available for cleaner, punchier bass.

A suspected problem of “poor bass per-

formance” is often caused by a weak AC

supply to the ampliﬁers.

Warranty Service

Details concerning warranty service are

spelled out on page 11 of this manual.

If you think your subwoofer has a

problem, please do everything you can

to conﬁrm it before calling for service,

including reading through the following

Troubleshooting section. Doing so might

save you from being deprived of your Mack-

ie loudspeaker.

Of all Mackie products returned for

service (which is hardly any at all), many

are coded “CND” — Could Not Dupli-

cate— which usually means the problem lay

somewhere else in the system. The follow-

ing troubleshooting tips may sound obvious,

but here are some things you can check:

Never remove the ground

pin on the power cord

of the SWA1801z or any

other component. This is

very dangerous.

THERMAL

Troubleshooting

CONSIDERATIONS

No power

The SWA1801z has a powerful 800 watt

ampliﬁer built-in. As ampliﬁers produce

heat, it is important to dissipate the heat as

quickly as possible. This results in increased

reliability and longevity for the ampliﬁer.

The ampliﬁer module is mounted on

a large heatsink, which is cooled by con-

vection where cool air is drawn through it’s

ﬁns, carrying the heat away. In order for

this convection cooling to work efﬁciently,

it is important to provide adequate airspace

behind the loudspeaker. When you position

the SWA1801z, we recommend leaving at

least six inches of air space behind it.

In the unlikely event of the ampliﬁer

overheating, a built-in thermal switch will

activate, which mutes the signal. When the

ampliﬁer has cooled down to a safe oper-

ating temperature, the thermal switch resets

itself, and the SWA1801z resumes normal

operation.

• Our favorite question: Is it plugged in?

Make sure the AC outlet is live (check

with a tester or lamp).

• Our next favorite question: Is the POWER

switch on? If not, try turning it on.

• Is the POWER LED on the rear panel

glowing green? If not, make sure the AC

outlet is live. If so, refer to “No sound”

next.

• The internal AC line fuse may be blown.

This is not a user serviceable part. If you

suspect the AC line fuse is blown, please

see the “Repair” section on page 9.

No sound

Noise

• Is the input LEVEL control for the input

source or the subwoofer turned all the

way down? Verify that all the volume

controls in the system are properly ad-

justed.

• Make sure all connections to the active

loudspeakers are good and sound.

• Make sure none of the signal cables are

routed near AC cables, power trans-

formers, or other EMI-inducing devices.

• Is the signal source working (and making

union scale)? Make sure the connecting

cables are in good repair and securely

connected at both ends. Make sure the

output volume (gain) control on the mix-

ing console is turned up sufﬁciently to

drive the inputs of the speaker.

• Is there a light dimmer or other SCR-

based device on the same AC circuit as

the SWA1801z? Use an AC line ﬁlter or

plug the SWA1801z into a different AC

circuit.

Hum

• Make sure the mixer does not have a

Mute on or a Processor loop engaged. If

you ﬁnd something like this, make sure

the volume/gain is turned down before

disengaging the offending switch.

• Is the thermal protection circuit activated?

Make sure there is at least six inches of

free space behind the SWA1801z.

• Try disconnecting the cable connected

to the INPUT jack. If the noise disap-

pears, it could be a “ground loop,” rather

than a problem with the SWA1801z.

Try some of the following troubleshoot-

ing ideas:

• Use balanced connections throughout

your system for the best noise rejection.

• Whenever possible, plug all the audio

equipment’s linecords into outlets which

share a common ground. The distance

between the outlets and the common

ground should be as short as possible.

Poor bass performance

• Check the polarity of the connections

between the mixer and the loudspeak-

ers. You may have your positive and

negative connections reversed at one

end of one cable, causing one loudspeak-

er to be out-of-phase.

• Try switching the PHASE switch on

the rear panel. This affects the polarity

between the full-range speakers and the

SWA1801z and may improve the low-

frequency response.

Poor sound

• Is it loud and distorted? Make sure that

you’re not overdriving a stage in the

signal chain. Verify that all level controls

are set properly.

• Is the input connector plugged

completely into the jack? Be sure all con-

nections are secure. It’s a good idea to

periodically clean all electrical connec-

tions with a non-lubricating electrical

contact cleaner.

Repair

4. Pack the subwoofer in its original

packaging, including protective wrap,

endcaps, and box. This is VERY IM-

PORTANT. When you call for the

Service Request Number, please let Tech

Support know if you need new packag-

ing. Mackie is not responsible for any

damage that occurs due to non-factory

packaging.

Service for Mackie products is available at

a factory-authorized service center. Ser-

vice for Mackie products living outside the

United States can be obtained through local

dealers or distributors.

If your SWA1801z needs service, please

follow these instructions:

1. Review the preceding troubleshooting

suggestions. Please.

5. Include a legible note stating your name,

shipping address (no P.O. boxes), day-

time phone number, RA number, and

a detailed description of the problem,

including how we can duplicate it.

2. Call Tech Support at 1-800-898-3211,

7am to 5pm PST, to explain the problem

in detail. They will ask you all sorts of

impertinent questions in the hope of

sorting out the problem. If it appears

that the SWA1801z needs repair, request 6. Write the Service Request Number in

BIG PRINT on top of the box.

a Service Request Number. Have your

subwoofer’s serial number ready. You

must have a Service Request Number

before you can obtain factory-autho-

rized service.

7. Tech Support will tell you where to ship

the subwoofer for repair. We suggest

insurance for all forms of cartage.

8. You will need to contact the authorized

service center for their current turn-

around times. The SWA1801z must be

packaged in its original packing box, and

must have the Service Request Num-

ber on the box. Once it is repaired, the

authorized service center will ship it

back by ground shipping, pre-paid (for

warranty repairs).

3. Keep this user’s manual. We don’t need

it to repair the subwoofer.

Note: Under the terms of the warranty,

you must ship or drop-off the unit to an

authorized service center. The return

ground shipment is covered for those

deemed by us to be under warranty.

Note: You must have a sales receipt from

an Authorized Mackie Dealer to qualify

for a warranty repair.

Need Help?

You can reach a technical support representative

Monday through Friday

from 7 AM to 5 PM PST at:

1-800-898-3211

After hours, visit www.mackie.com and click Support,

or email us at: [email protected]

SWA1801z SPECIFICATIONS

Enclosure Geometry

Rectangular

Mounting Methods

Floor mount only

System Speciﬁcations

Frequency Range (–10 dB)

35 Hz–120 Hz

Frequency Response (–3 dB)

WARNING: The cabinet has no rigging points

and is not suitable for rigging. NEVER attempt

to suspend the SWA1801z by its handles.

45 Hz–120 Hz

Maximum SPL @ 1m 129 dB

Peak Output @ 1m

Crossover Frequency

Input Type

Input Impedance

Input Protection

Thermal Protection

135 dB

120 Hz (12 dB/octave)

Balanced differential

50 kΩ

Level protected

Input stage muting,

auto-reset

Disclaimer

Since we are always striving to make our

products better by incorporating new and improved

materials, components, and manufacturing methods,

we reserve the right to change these speciﬁcations at

any time without notice.

Transducer Speciﬁcations

Low-Frequency Transducer

“Mackie” and the “Running Man” ﬁgure are

registered trademarks of LOUD Technologies Inc.

Diameter

Voice Coil Diameter

18˝ (457 mm)

4.0˝ (102 mm)

All other brand names mentioned are trade-

marks or registered trademarks of their respective

holders, and are hereby acknowledged.

Power Ampliﬁer

Low-Frequency Power Ampliﬁer

Rated Power^*

800 Watts continuous

1000 Watts peak

< 0.03%

Rated THD

Cooling

Passive

Dimensions

23.5" (597 mm)

Line Input Power

3.5"

(89 mm)

Europe

120 V, 60 Hz

230 V, 50 Hz

ACTIVE

11.2"

(284 mm)

* Rated power into loudspeaker’s rated impedance.

7.1"

(180 mm)

5.2"

(132

mm)

9.4"

(239 mm)

3.5"

(89 mm)

Physical Properties

FRONT

SIDE

Height

Width

Depth

28.5˝ (724 mm)

23.5˝ (597 mm)

3.3"

(83 mm)

3.3"

(83 mm)

Weight 132 lbs. (60 kg)

Enclosure 15 mm thick multi-layered baltic

birch wood

7.0"

(178

mm)

23.5" (597 mm)

TOP

SWA1801z On Axis Frequency Response

(with second and third harmonic components)

110

100

Fundamental

Second

Third

100

200

500

10k

20k

Frequency (Hz)

SWA1801z LIMITED WARRANTY

Please keep your sales receipt in a safe place.

A. LOUD Technologies Inc. warrants all materials,

workmanship and proper operation of this Mackie

SWA1801z for a period of ﬁve years from the

original date of purchase, with the following excep-

tion: warranty on all its loudspeaker components

including woofers and compression drivers are only

warranted for two years. If any defects are found in

the materials or workmanship or if the product fails

to function properly during the applicable warranty

period, LOUD Technologies, at its option, will repair

or replace the product. This warranty applies only

to equipment sold and delivered within the U.S.

by LOUD Technologies Inc. or its authorized

dealers.

F. Any products returned to one of LOUD Technolo-

gies factory-authorized service centers, and deemed

eligible for repair or replacement under the terms

of this warranty, will be repaired or replaced within

thirty days of receipt by LOUD Technologies. LOUD

Technologies and its authorized service centers may

use refurbished parts for repair or replacement of

any product. Products returned to LOUD Technolo-

gies that do not meet the terms of this Warranty will

not be repaired unless payment is received for labor,

materials, return freight, and insurance. Products

repaired under warranty will be returned freight pre-

paid by LOUD Technologies to any location within

the boundaries of the USA.

B. Failure to register online or return the product

G. LOUD Technologies warrants all repairs per-

formed on Mackie products for 90 days or for the

remainder of the original warranty period. This

warranty does not extend to damage resulting from

improper installation, misuse, neglect or abuse, or

to exterior appearance. This warranty is recognized

only if the inspection seals and serial number on the

unit have not been defaced or removed.

registration card will not void the ﬁve-year warranty.

C. Service and repairs of Mackie products are to

be performed only at a factory-authorized facil-

ity (see D below). Unauthorized service, repairs,

or modiﬁcations will void this warranty. To obtain

repairs under warranty, you must have a copy of

your sales receipt from the authorized Mackie dealer

where you purchased the product. It is necessary to

establish the purchase date and determine whether

you Mackie product is within the warranty period.

H. LOUD Technologies assumes no responsibility for

the quality or timeliness of repairs performed by an

authorized service center.

D. To obtain factory-authorized service:

I. This warranty is extended to the original pur-

chaser and to anyone who may subsequently

purchase this product within the applicable war-

ranty period. A copy of the original sales receipt is

required to obtain warranty service.

J. This is your sole warranty. LOUD Technologies

does not authorize any third party, including any

dealer or sales representative, to assume any liability

on behalf of LOUD Technologies or to make any war-

ranty for LOUD Technologies.

K. THE WARRANTY GIVEN ON THIS PAGE IS THE

SOLE WARRANTY GIVEN BY LOUD TECHNOLOGIES

INC. AND IS IN LIEU OF ALL OTHER WARRANTIES,

EXPRESS AND IMPLIED, INCLUDING THE WAR-

RANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE. THE WARRANTY

GIVEN ON THIS PAGE SHALL BE STRICTLY

LIMITED IN DURATION TO FIVE YEARS FROM

THE DATE OF ORIGINAL PURCHASE FROM

AN AUTHORIZED MACKIE DEALER. UPON

EXPIRATION OF THE APPLICABLE WARRANTY PE-

RIOD, LOUD TECHNOLOGIES INC. SHALL HAVE

NO FURTHER WARRANTY OBLIGATION OF ANY

KIND. LOUD TECHNOLOGIES INC. SHALL NOT

BE LIABLE FOR ANY INCIDENTAL, SPECIAL, OR

CONSEQUENTIAL DAMAGES THAT MAY RESULT

FROM ANY DEFECT IN THE MACKIE PRODUCT

OR ANY WARRANTY CLAIM. Some states do not

allow exclusion or limitation of incidental, special,

or consequential damages or a limitation on how

long warranties last, so some of the above limitations

and exclusions may not apply to you. This warranty

provides speciﬁc legal rights and you may have other

rights which vary from state to state.

1. Call Mackie Technical Support at 800/898-

3211, 7 am to 5 pm Monday through Friday

(Paciﬁc Time) to get a Service Request Number.

Products returned without a Service Request

Number will be refused.

2. Pack the product in its original shipping

carton. Also include a note explaining exactly

how to duplicate the problem, a copy of the sales

receipt with price and date showing, and your

return street address (no P.O. boxes or route

numbers, please!). If we cannot duplicate the

problem or establish the starting date of your

Limited Warranty, we may, at our option, charge

for service time.

3. Ship the product in its original shipping

carton, freight prepaid to the authorized service

center. The address of the closest authorized

service center will be given to you by Technical

Support.

IMPORTANT: Make sure that the Service Request

Number is plainly written on the shipping carton.

E. LOUD Technologies reserves the right to inspect

any products that may be the subject of any warranty

claims before repair or replacement is carried out.

LOUD Technologies may, at our option, require proof

of the original date of purchase in the form of a dated

copy of the original dealer’s invoice or sales receipt.

Final determination of warranty coverage lies solely

with LOUD Technologies.

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 • www.mackie.com

E-mail: [email protected]

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