HD1501 - American Musical Supply
HD1501
15” Powered Subwoofer
OWNER’S MANUAL
HD1501
Important Safety Instructions
1.
2.
3.
4.
5.
6.
7.
Read these instructions. Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Do not block any ventilation openings. Install in accordance with the
manufacturer’s 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. Use only with a cart, stand, tripod, bracket, or
PORTABLE CART
WARNING
table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to
avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or
when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as powersupply 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.
15. This apparatus shall not be exposed to dripping or splashing, and no
object filled with liquids, such as vases or beer glasses, shall be placed
on the apparatus.
16. Do not overload wall outlets and extension cords as this can result in a
risk of fire or electric shock.
17. This apparatus has been designed with Class-I construction and must
be connected to a mains socket outlet with a protective earthing connection (the third grounding prong).
18. This apparatus has been equipped with an all-pole, rocker-style AC
mains power switch. This switch is located on the rear panel and
should remain readily accessible to the user.
CAUTION
AVIS
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 EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE.
AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER.
CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE.
AVIS: POUR EVITER LES RISQUES D'INCENDIE OU D'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE
A LA PLUIE OU A L'HUMIDITE
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.
Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral
est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de
"voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque
d'éléctrocution.
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.
Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé
pour alerter les utilisateurs de la présence d'instructions importantes pour le
fonctionnement et l'entretien (service) dans le livret d'instruction
accompagnant l'appareil.
2
HD1501
19.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 the
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.
CAUTION: Changes or modifications to this device not expressly
approved by LOUD Technologies Inc. could void the user's authority to
operate the equipment under FCC rules.
20. This apparatus does not exceed the Class A/Class B (whichever is
applicable) limits for radio noise emissions from digital apparatus as
set out in the radio interference regulations of the Canadian Department
of Communications.
ATTENTION — Le présent appareil numérique n’émet pas de bruits
radioélectriques dépassant las limites applicables aux appareils
numériques de class A/de class B (selon le cas) prescrites dans le
réglement sur le brouillage radioélectrique édicté par les ministere des
communications du Canada.
21. Exposure to extremely high noise levels may cause permanent hearing
loss. Individuals vary considerably in susceptibility 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 the following chart.
According to OSHA, any exposure in excess of these permissible limits
could result in some hearing loss. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all
persons exposed to equipment capable of producing high sound pressure levels use hearing protectors while the equipment is in operation.
Ear plugs or protectors in the ear canals or over the ears must be worn
when operating the equipment in order to prevent permanent hearing
loss if exposure is in excess of the limits set forth here:
Duration,
per day in
hours
8
6
4
3
2
1.5
1
Sound Level
dBA, Slow
Response
90
92
95
97
100
102
105
0.5
110
0.25 or less 115
Typical Example
Duo in small club
Subway Train
Very loud classical music
Greg and Ben screaming at Troy
about deadlines
Loudest parts at a rock concert
WARNING — To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.
IMPORTANT SAFETY INSTRUCTIONS
CONTENTS
FEATURES
INTRODUCTION
HOOKUP DIAGRAMS REAR PANEL FEATURES
INS AND OUTS OF POLARITY
PLACEMENT
THERMAL CONSIDERATIONS
2
3
3
3
4
6
9
10
10
Features
• 1200W of ultra-efficient Class-D Fast Recovery™ amplification
• 600W RMS / 1200W peak power
• 128 dB SPL max output (peak @ 1m)
• 36 Hz - 145 Hz operating range
• 15” high-output woofer with 3” voice coil
• Active electronics provide complete system
optimization
• Symmetrical Linkwitz-Riley crossover (100 Hz, 24 dB/octave)
• Precision tuning filters for ultra-accurate bass reproduction
• Phase alignment to perfectly complement Mackie full-range loudspeakers
• Ported, direct-radiating design for maximum
punch and low-frequency extension
• Designed and tuned by Eastern Acoustic Works
• Dual XLR inputs, full-range and high-pass outputs for mono or stereo setups
• Level control and polarity invert switch with
LED indicator
• Signal / limit and thermal LED indicators
• Integrated protection and limiting circuitry
• Rugged all-wood cabinet (15 mm birch plywood)
• Pole mount receptacle for mounting full-range
speaker
• Compact and lightweight (80 lb / 36.3 kg)
AC POWER
CARE AND MAINTENANCE
APPENDIX A: SERVICE INFORMATION APPENDIX B: CONNECTIONS APPENDIX C: TECHNICAL INFORMATION
HD1501 GRAPHS AND DIMENSIONS HD1501 BLOCK DIAGRAM HD1501 LIMITED WARRANTY 10
10
11
12
13
14
15
16
Owner’s Manual
Contents
Introduction
Thank you for choosing the Mackie HD1501 subwoofer. Mackie HD Series Powered Subwoofers
provide intense low-frequency extension and punch to
any Mackie full-range system. Designed and tuned by
the experts at EAW, HD1501 subs deliver 1200W peak
power via high-output 15” drivers custom-designed for
optimal pairing with Mackie full-range loudspeakers.
The HD1501 incorporates Mackie-standard professional
components like efficient Class-D Fast Recovery™ amplifiers and system-optimizing Active electronics so
that everything sounds great right out of the box.
Premium circuitry includes a symmetrical LinkwitzRiley crossover, precision tuning filters and user-friendly
features like high pass outputs for stereo operation with
a single sub. The 15mm birch plywood enclosures feature a ported, direct-radiating design for chestpounding punch. Pair the HD1501 with any Mackie full-range loudspeaker for an extremely powerful and
fully high-definition PA solution.
Paired with a Mackie HD1521, you have a complete
(and completely affordable) “plug and play” system that
is ideal for small clubs, DJs and rehearsal spaces. It is
also a great match when paired with the popular Mackie
SRMv2 Series and can easily integrate into nearly any
existing PA setup. The HD1501 has both full-range and
high-pass stereo outputs for connection to full-range
top boxes. Just dial in the appropriate level and use the
polarity switch to make sure the sub is in phase with the
loudspeakers. The integrated pole-cup can accommodate a standard mounting pole, so your favorite speaker has a nice place to sit. Or you can just
stack your full-range box right on top of the sub...the
HD1501 ain’t picky.
So if you are looking for an extremely powerful, affordable PA setup that is simple to use, then you’re in
the right place. Read on to learn everything you could
possibly want to know about your new subwoofer.
Owner’s Manual
Part No. SW0821 Rev. A 01/10
©2004-2010 LOUD Technologies Inc. All Rights Reserved.
3
HD1501
Hookup Diagrams
SRM450v2
reproduces all
frequencies
above the
subwoofer’s
crossover point
Line-level
High Pass
out A
SRM450v2
reproduces all
frequencies
above the
subwoofer’s
crossover point
Line-level
High Pass
out B
Power
Cord
Power
Cord
HD1501
input B
HD1501
input A
Left
line level
output
1
HD1501 subwoofer
reproduces the low
frequencies
Power
Cord
2
3
4
5/6
7/8
Right
line level
output
9/10
11/12
MON
MAIN
ProFX12 Mixer
This diagram shows the left line level output of a Mackie ProFX12 mixer feeding inputs A and B of one
Mackie HD1501 subwoofer. Two SRM450v2 powered loudspeaker inputs are fed from the A and B High
Pass outputs from the subwoofer. Experiment with the HD1501’s polarity switch to achieve optimum performance. Placement of the subwoofer relative to the full-range loudspeakers will also affect performance. See page 9 for more information.
HD1501: 3-WAY Mono Sub SYSTEM WITH SRM450v2 LOUDSPEAKERS
4
HD1501
Line-level
High Pass
out A
HD1521
reproduces all
frequencies
above the
subwoofer’s
crossover point
Pole
Mount
Line-level
High Pass
out A
Power
Cord
HD1501
input A
Power
Cord
HD1501
input A
Right
line level
output
HD1501 subwoofer
reproduces the low
frequencies
Pole
Mount
Owner’s Manual
HD1521
reproduces all
frequencies
above the
subwoofer’s
crossover point
Left
line level
output
Power
Cords
HD1501 subwoofer
reproduces the low
frequencies
1
2
3
4
5
6
7
8
9-10
11-12
1
2
3
Power
Cords
4
CFX12mkII
Mixer
This diagram shows the left and right line level outputs of a Mackie CFX12mkII mixer feeding input A of
two Mackie HD1501 subwoofers. The High Pass output A of each subwoofer then feeds the input of each
Mackie HD1521 powered loudspeaker. Experiment with the HD1501’s polarity switch to achieve optimum performance. Placement of the subwoofer relative to the full-range loudspeakers will also affect
performance. See page 9 for more information.
HD1501: STEREO 3-WAY SYSTEM WITH HD1521 LOUDSPEAKERS
Owner’s Manual
5
HD1501
Rear Panel Features
OUTPUTS
A
FULL RANGE
B
5
HD1501
15 -INCH HIGH DEFINITION POWERED SUBWOOFER
SETTINGS
A
B
A
HIGH PASS
7
6
B
4
3
10
THERMAL
INPUTS
POWER
LIGHT ON
SIG/ LIMIT
POLARITY
INVERT
- 6dB
9
+6dB
LEVEL
8
SERIAL NUMBER
WARNING:
REVISION
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
POWER
ON
2
1
1. IEC AC Receptacle
This jack accepts the supplied ­3-prong AC power cord.
Before you plug the AC power cord into the
powered subwoofer, make sure that the voltage of your unit is the same voltage as your
local AC mains supply. Use only the power
cord supplied. Also, disconnecting the plug’s ground pin
is dangerous. Don’t do it.
2. POWER
Use this switch to turn the HD1501 on and off. The
LED above the switch will illuminate when powered on.
6
HD1501
The front panel LED will also turn on, but only if the
POWER LIGHT ON switch (7) is engaged.
Press the bottom of this switch to put the subwoofer
into standby mode. The HD1501 will not function, but
the circuits are still live. To remove AC power, either
turn off the AC mains supply, or unplug the power cord
from the speaker and the AC mains supply.
As a general guide, powered subwoofers
should be turned on after the mixer and other
sources, but prior to full-range speakers.
Additionally, they should also be powered off
after the tops, but before the mixer and other sources.
This will reduce the possibility of any turn-on, or turn-off thumps in your speakers.
FULL RANGE
HD1501
B
5
15 -INCH HIGH DEFINITION POWERED SUBWOOFER
THERMAL
INPUTS
A
B
A
HIGH PASS
B
4
3
10
SETTINGS
7
6
POWER
LIGHT ON
SIG/ LIMIT
9
POLARITY
INVERT
- 6dB
+6dB
LEVEL
8
3. INPUTS
5. FULL RANGE OUTPUTS
These female XLR connectors accept balanced
line-level signals from a mixing console or other signal
source.
Balanced XLR male connectors are provided for the
line-level A and B full-range outputs. Connect these
outputs to the inputs of another powered subwoofer,
main powered loudspeakers, or to an amplifier powering
passive loudspeakers.
If you are connecting a single subwoofer output, or
LFE (low-frequency effects) output to the subwoofer,
you may use either the A or B input connector.
CAUTION: NEVER connect the output of an
amplifier directly to the input of the subwoofer. This could damage the input circuitry of the powered subwoofer.
4. HIGH PASS OUTPUTS
Balanced XLR male connectors are provided for the
line-level A and B high-pass outputs. The subwoofer’s internal active crossover splits the input signals into
two frequency bands. The low frequency range below
100 Hz goes to the internal amplifier that powers the
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
subwoofer. The frequency WARNING:
range above
100 Hz is sent to
these line-level output jacks.
Owner’s Manual
OUTPUTS
A
The signal at these outputs is a direct copy of the
input signals. These outputs allow you to daisy-chain
multiple subwoofers, and/or send the full-range signals
to the main loudspeakers.
The level control and polarity switch have no effect
on the full-range outputs. The outputs are separate and
maintain the stereo separation of the input signals.
6. POLARITY INVERT
Press this switch in to invert subwoofer polarity.
Depending on the placement of the HD1501 subwoofer
SERIAL NUMBER
REVISION
relative to the full-range speakers, you may get a better
low-frequency response if you invert the polarity of the
subwoofer’s signal. See page 9 for more information.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
Connect these outputs to the inputs of your main
powered loudspeakers, or to the inputs of the amplifier
powering the main loudspeakers. In this way, the main
loudspeakers will play the range above 100 Hz. If the
main loudspeakers have good low-frequency response,
then you may decide to use the full-range outputs (5)
instead.
The level control and polarity switch have no effect
on the high-pass outputs. The outputs are separate and
maintain the stereo separation of the input signals.
7. POWER LIGHT ON
Press this switch in to turn on the front panel power
LED if a visual indicator is preferred. The LED next to
the switch will light as a reminder.
If this switch is out, and the HD1501 is turned on, the
LED on the front of the cabinet will not light, nor will
the LED next to the switch.
POWER
8. LEVEL
ON
This controls the overall signal level at the input to
the built-in power amplifier. It ranges from –6 dB to +6 dB of gain. The center detent is 0 dB (unity gain).
This control has no effect on the level of the High
Pass Outputs (4) or the Full Range Outputs (5).
Owner’s Manual
7
HD1501
OUTPUTS
A
FULL RANGE
HD1501
B
5
15 -INCH HIGH DEFINITION POWERED SUBWOOFER
THERMAL
INPUTS
A
B
A
HIGH PASS
7
B
4
3
10
SETTINGS
6
POWER
LIGHT ON
SIG/ LIMIT
9
POLARITY
INVERT
- 6dB
+6dB
LEVEL
8
9. SIG/LIMIT LED
10. THERMAL LED
This bi-color LED illuminates green whenever there is
a signal present at the main inputs. It senses the signal
just after the level control, so adjustments to the level
control will affect the sig/limit indicator.
The HD1501 is equipped with a thermal protection
circuit that monitors the internal temperature of the
amplifier and heatsink. If the temperature begins to
exceed a safe operating level, this indicator lights and
the amplifier output is limited to allow the amplifier to
cool. If the amplifier becomes excessively hot, the amp is
muted until it cools, then the HD1501 returns to normal
operation.
The HD1501 has a built-in limiter that helps to prevent the amplifier outputs from clipping or overdriving
the transducer. The sig/limit indicator lights in yellow
when the limiter is activated. It’s okay for it to blink
yellow occasionally, but if it blinks frequently or lights
continuously, turn down the input level until it only
blinks occasionally.
Excessive limiting may lead to overheating, which in turn trips the thermal
protect circuitry and interrupts the performance. See ‘Thermal Considerations’ on
page 10 for more information.
WARNING:
When the HD1501 is in thermal protect mode, the
power LED (2) will remain lit, indicating that the unit
is still powered on despite the lack of output. If POWER
LIGHT ON (7) is engaged, the front panel power LED
will go out when in thermal protect mode.
Activation of the thermal protection circuit
is an indication that you should take steps
to avoid continued thermal problems. See “Thermal
Considerations”
on page 10.
SERIAL
NUMBER
REVISION
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
POWER
8
HD1501
Mackie’s HD-Series Powered Subwoofers include a
switch that allows you to quickly invert the polarity of
the subwoofer’s output relative to the input signal it is
receiving from the mixer or other sound source. But
what exactly does that mean? A subwoofer works by literally pumping air as the woofer cone moves in and out
with respect to the cabinet in which it is housed. It does
so according to the low-frequency portion of the signal it
receives from the sound source.
The woofer cone is simply following the waveform
as seen in the sine wave in Figure 1. As the sine wave
rises, the woofer cone pushes out. Likewise, as the sine
wave falls, the woofer cone pulls into the cabinet. A
musical signal is much more complex, of course, but the
same principle applies. Movement of the woofer cone
causes air pressure changes that we perceive as sound.
When the Polarity Invert switch [6] is engaged, the
original waveform is simply reversed 180º (see Figure
2). Again, the subwoofer cone follows the waveform.
However, this time the woofer cone starts by pulling into
the cabinet followed by the woofer cone pushing out. If
you have ever experimented with a subwoofer polarity
switch, you may not have noticed any changes to the
sound regardless of its position, especially if you are
listening to just the subwoofer. This is normal, as our
ears perceive them both as the same.
The polarity invert switch comes into play when the
HD1501 subwoofer is paired with a loudspeaker. Ideally,
the woofer cones of the subwoofer and full-range loudspeaker would work together by pushing and pulling in
unison. HD-Series subwoofers are designed to be used
in a broad range of applications, and with a wide variety
of full-range loudspeakers. The flexibility provided by
the polarity switch is necessary to ensure that you are
receiving the best possible sound from your system,
regardless of your setup.
Listed below are some recommended configurations
for pairing a Mackie HD-Series subwoofer (using the
High-Pass output) with a Mackie full-range loudspeaker. These settings are a good start, but be sure
to experiment to find the best sound for your venue. The
loudspeakers may be stacked, pole-mounted, or flown.
• HD-Series full-range loudspeakers - Disengage the Polarity Invert switch on the HD1501.
• SRM450v2 full-range loudspeakers - Disengage the Polarity Invert switch on the HD1501.
In alternate setups where the full-range loudspeakers
are not co-located with the subwoofers or are not connected to the HD-Series subwoofer’s High-Pass
outputs, you will need to experiment with the Polarity
Invert switch to determine which setting gives you the
desired bass response for your application.
<--Time-->
Amplitude
<--Time-->
Amplitude
Owner’s Manual
The Ins and Outs of Polarity
Figure 1
Figure 2
Owner’s Manual
9
HD1501
Placement
AC Power
The HD1501 subwoofer is designed to sit on the floor
or stage. A socket is provided on top of the HD1501 for
mounting other Mackie loudspeakers. Use the optional
Mackie speaker mounting pole to mount them on the
HD1501. See the hookup diagrams starting on page 4.
Be sure the HD1501 is plugged into an outlet that
is able to supply the correct voltage specified for your
model. It will continue to operate at lower voltages, but
will not reach full power.
Check to make sure that the support surface (e.g.,
floor, etc.) has the necessary mechanical characteristics to support the weight of the loudspeaker(s) and
subwoofer(s).
When pole-mounting loudspeakers, be sure that the
HD1501 subwoofers are stabilized and secured from falling over or being accidentally pushed over. For
stacked scenarios, it is highly suggested that straps are
utilized. Failure to follow these precautions may result
in damage to the equipment, personal injury, or death.
As with any powered components, protect them from
moisture. Avoid installing the subwoofer in places
exposed to harsh weather conditions. If you are setting
them up outdoors, make sure they are under cover if you
expect rain.
The cabinet has no rigging points and is not
suitable for rigging. Never attempt to suspend
the HD1501 by its handles.
Thermal Considerations
The HD1501 has a powerful built-in amplifier capable
of producing 600 watts of rms power. As an amplifier
works, it produces heat. The higher the signal level, the
louder and hotter it gets. 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 cooled by twin thermally-controlled vari-speed fans. In order for this
convection cooling system to work efficiently, it is
important to provide adequate airspace behind the subwoofer. When positioning the HD1501, 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, muting the amplifier’s output. When the amplifier has cooled down
to a safe operating temperature, the thermal switch
resets itself, and the HD1501 resumes normal operation.
If the thermal switch activates frequently, try turning
down the level control a notch or two on the mixing console (or the back of the HD1501) to avoid overheating the amplifier. Be aware that direct sunlight
and/or hot stage lights may be the cause of an amplifier
overheating.
10
HD1501
Be sure the electrical service can supply enough amperage for all the components connected to it.
We recommend that a stiff (robust) supply of AC
power be used because the amplifier places high current demands on the AC line. The more power that is
available on the line, the louder the subwoofer will play
and the more peak output power will be available for a
cleaner, punchier bass. A suspected problem of “poor
bass performance” is often caused by a weak AC supply
to the amplifier.
Never remove the ground pin on the power
cord or any other component of the HD1501.
This is very dangerous.
Care and Maintenance
Your Mackie subwoofers will provide many years of
reliable service if you follow these guidelines:
• Avoid exposing the subwoofers to moisture. If
they are set up outdoors, be sure they are under
cover if rain is expected.
• Avoid exposure to extreme cold (below freezing temperatures). If you must operate the
subwoofers in a cold environment, warm up the
voice coils slowly by sending a low-level signal
through them for about 15 minutes prior to
high-power operation.
• Use a dry cloth to clean the cabinets. Only do
this when the power is turned off. Avoid getting
moisture into any of the openings of the cabinet, particularly where the driver is located.
If you think your Mackie product has a problem,
please check out the following troubleshooting tips and
do your best to confirm the problem. Visit the Support
section of our website (www.mackie.com/support)
where you will find lots of useful information such as
FAQs and other documentation. You may find the answer
to the problem without having to send your Mackie
product away.
Troubleshooting
No power
Poor bass performance
• Check the polarity of the connections between
the mixer and the subwoofers. You may have
your positive and negative connections reversed
at one end of one cable, causing one subwoofer
to be out-of-phase.
• Check your subwoofer polarity switches are
configured appropriately for your setup. See
page 9 for more information.
Poor sound
• Is it plugged in? Make sure the AC outlet is live
(check with a tester or lamp).
• 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.
• Our next favorite question: Is the power switch
on? If not, try turning it on.
• Is the input connector plugged completely into
the jack? Be sure all connections are secure.
• 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” below.
• 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 next.
No sound
• Is the input level control for the input source
turned all the way down? Verify that all the
volume controls in the system are properly
adjusted.
• Is the signal source working? Make sure the
connecting cables are in good repair and
securely connected at both ends. Make sure the
output volume (gain) control on the mixing
console is turned up sufficiently to drive the
inputs of the speaker.
• 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 indicator lit red on the rear
panel? Make sure there is at least six inches of
free space behind the HD1501.
Owner’s Manual
Appendix A:
Service Information
Noise
• Make sure all connections to the powered subwoofers are good and sound.
• Make sure none of the signal cables are routed
near AC cables, power transformers, or other
EMI-inducing devices.
• Is there a light dimmer or other SCR-based
device on the same AC circuit as the HD1501?
Use an AC line filter or plug the HD1501 into a
different AC circuit.
Hum
• Try disconnecting the cable connected to the
main input jack. If the noise disappears, it
could be a “ground loop,” rather than a problem
with the HD1501. Try some of the following
troubleshooting 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.
Owner’s Manual
11
HD1501
Appendix B:
Connections
Repair
“XLR” Connectors
For warranty service, refer to the warranty information on page 16.
The HD1501 has two female XLR inputs that accept
balanced line-level signals. When connecting a balanced
signal, be sure it’s wired per AES (Audio Engineering
Society) standards:
Non-warranty service for Mackie products is available at a factory-authorized service center. To
locate the nearest service center, visit www.mackie.com,
click “Support” and select “Locate a Service Center.”
Service for Mackie products living outside the United
States can be obtained through local dealers or distributors.
If you do not have access to our website, you may call
the Tech Support department at 1-800-898-3211, Monday-Friday, during normal business hours, Pacific
Time, to explain the problem. Tech Support will tell you
where the nearest factory-authorized service center is
located in your area.
Balanced XLR Connectors
XLR
Pin 1 – Shield (Ground)
Pin 2 – Hot (+)
Pin 3 – Cold (–) There are also two male XLR connectors on the
HD1501 labeled full range. These are also wired according to the AES standards listed above.
The full range connectors allow you to connect several HD1501’s. Simply plug the signal source (e.g., mixer output) into the HD1501 input jack, and
patch that subwoofer’s full range jack to the next subwoofer’s input jack, and so on, daisy-chaining multiple subwoofers.
There is a limit to how many you can daisy-chain together. A general rule is to
maintain a load impedance ten times or
more than the source impedance to prevent
excessive loading on the source. For example, if your mixer has an output impedance of 120 ohms,
then you can daisy chain up to nine HD1501s. This is
a load of 1222 ohms (HD1501 input impedance=11
kohms; 9 of these in parallel=1222 ohms). Since microphones typically have a higher output impedance,
you should limit daisy-chaining from a mic source to
two HD1501s (assuming that loudspeakers are also connected to the subwoofers).
12
HD1501
HD1501 Specifications
Acoustic Performance
Protection Features
Frequency Response (–10 dB):
36 Hz – 145 Hz
Frequency Response (–3 dB):
43 Hz – 92 Hz
(calculated)1:
128 dB
Max peak SPL (measured)2:
Max peak SPL
126 dB
Transducer
Diameter:
15.0 in / 381 mm
Voice Coil Diameter:
3.0 in / 76 mm
Diaphragm Material:
Paper
Magnet Material:
Ferrite
Power Amplifier
Over-excursion Protection:
45 Hz 24 dB/oct. Butterworth High Pass Filter
Thermal Protection:
Amplifier mute, auto reset, twin thermally controlled vari-speed fans
Driver Protection:
Peak/RMS Limiter
Display LEDs:
Power Light ON, Polarity Invert, Thermal, Sig/Limit, Front Power ON
AC Power Requirements
US: 100-120 VAC, 50-60 Hz, 300 watts
Europe: 220-240 VAC, 50-60 Hz, 300 watts
3-pin IEC 250 VAC, 15 A male
Rated Power:
600 watts rms
1200 watts peak
AC Connector: THD:
< 0.03%
Design:
Class D
Construction Features
Cooling:
Active, twin thermally controlled vari-speed fans
Input/Output
Input Type: Female XLR Balanced differential (stereo left/right)
Input Impedance: 20 k
Full Range Output:
Male XLR Balanced
(parallel with input)
High Pass Output:
Basic Design:
Rectangular
Material:
15 mm exterior grade premium birch plywood
Finish:
High durability black paint
Handles:
One on each side
Grille:
Powder-coated galvanized steel
Physical Properties
Height:
20.0 in / 508 mm
Width:
18.25 in / 464 mm
Depth:
25.0 in / 635 mm
Male XLR Balanced
Weight:
80.0 lb / 36.3 kg
Output Impedance: 300
Mounting Methods
Level Control:
–6 dB to +6 dB
Floor mount only
WARNING: The cabinet has no rigging points and is not suitable for rigging. NEVER attempt to suspend the HD1501 by
its handles.
Electronic Crossover
Crossover Type:
24 dB/oct.
Symmetrical Linkwitz-Riley
Crossover Frequency:
100 Hz
1 Calculated from peak driver sensitivity and amplifier power, half space.
2 Measured with swept sine at 1 W within operating range, scaled for max power, half
space.
Owner’s Manual
Appendix C: Technical Information
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.
“Mackie” and the “Running Man” figure are registered trademarks of LOUD Technologies Inc.
All other brand names mentioned are trademarks or ­registered
trademarks of their respective holders, and are hereby acknowledged.
Owner’s Manual
©2010 LOUD Technologies Inc.
All Rights Reserved.
13
HD1501
Frequency Response
10
Relative Magnitude (dB)
0
-10
-20
-30
-40
-50
10
100
Frequency (Hz)
HD1501 Dimensions
18.25 in/
464 mm
18.25 in/
464 mm
WEIGHT
80.0 lb
36.3 kg
25.0 in/
635 mm
20.0 in/
508 mm
1000
25.0 in/
635 mm
20.0 in/
508 mm
Correct disposal of this product. This symbol indicates that this product should not be disposed of with your household waste, according to the WEEE Directive (2002/96/EC) and your national law. This product
should be handed over to an authorized collection site for recycling waste electrical and electronic equipment (EEE). Improper handling of this type of waste could have a possible negative impact on the environment and
human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the effective usage of natural
resources. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, waste authority, or your household waste disposal service.
14
HD1501
High Pass
Output XLRs
Input
XLRs
Full Range
Output XLRs
Crossover
HPF
100 Hz
Crossover
HPF
100 Hz
LPF
100 Hz
Crossover
HPF
45 Hz
Overexcursion
Protection
HD
Subwoofer
Processing
- 6dB
+6dB
LEVEL
Gain
Inverted
Thermal
Mute
Thermal
LED
Normal
Polarity
Invert
Polarity
Invert
LED
Thermal
Monitoring
Limiter
Signal /
Limit LED
Amp
Owner’s Manual
HD1501 Block Diagram
Owner’s Manual
15
HD1501
Mackie Limited Warranty
Please keep your sales receipt in a safe place.
This Limited Product Warranty (“Product Warranty”) is provided by LOUD Technologies Inc. (“LOUD”)
and is applicable to products purchased in the United States or Canada through a LOUD-authorized
reseller or dealer. The Product Warranty will not extend to anyone other than the original purchaser of
the product (hereinafter, “Customer,” “you” or “your”).
For products purchased outside the U.S. or Canada, please visit www.mackie.com/warranty to find
contact information for your local distributor, and information on any warranty coverage provided by the
distributor in your local market.
LOUD warrants to Customer that the product will be free from defects in materials and workmanship
under normal use during the Warranty Period. If the product fails to conform to the warranty then LOUD
or its authorized service representative will at its option, either repair or replace any such nonconforming
product, provided that Customer gives notice of the noncompliance within the Warranty Period to the
Company at: www.mackie.com/support or by calling LOUD technical support at 1.800.898.3211 (tollfree in the U.S. and Canada) during normal business hours Pacific Time, excluding weekends or LOUD
holidays. Please retain the original dated sales receipt as evidence of the date of purchase. You will need it
to obtain any warranty service.
For full terms and conditions, as well as the specific duration of the Warranty for this product, please visit
www.mackie.com/warranty.
The Product Warranty, together with your invoice or receipt, and the terms and conditions located
at www.mackie.com/warranty constitutes the entire agreement, and supersedes any and all prior
agreements between LOUD and Customer related to the subject matter hereof. No amendment,
modification or waiver of any of the provisions of this Product Warranty will be valid unless set forth in a
written instrument signed by the party to be bound thereby.
Need help with your new powered subwoofer?
• Visit www.mackie.com and click Support to find: FAQs, manuals, and addendums.
• Email us at: techmail@mackie.com.
• Telephone 1-800-898-3211 to speak with one of our splendid technical support chaps (Monday through Friday, normal business hours, PST).
16
HD1501
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: sales@mackie.com
OUTPUTS
A
FULL RANGE
B
HD1501
SETTINGS
THERMAL
15 - INCH HIGH DEFINITION POWERED SUBWOOFER
POWER
LIGHT ON
INPUTS
A
B
A
HIGH PASS
SIG / LIMIT
B
POLARITY
INVERT
- 6dB
SERIAL NUMBER
WARNING:
+6dB
LEVEL
REVISION
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
POWER
ON
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