SWA1501
SWA1501
The SWA1501 is a 15-inch high-output, active subwoof-
er system. It features a high-precision 15-inch transducer
combined with application-specic amplier technology.
The system is composed of a single, compact subwoofer
cabinet with built-in control and amplier electronics.
The transducer used in the SWA1501 system features a
3-inch voice coil that offers extreme power handling capabilities. The magnetic assembly used features advancements in coil venting and structural cooling that provide
lower temperature rise and substantially improved power
compression characteristics.
The amplier found in the SWA1501 cabinet is an
example of application-specic amplier design that can
be
exercised when designing active speaker systems. The
system uses a proprietary high-efciency, high-current
amplier
levels of operation. Having access to high current levels,
no matter what the power output, is absolutely critical
in achieving precise, total control of the woofer mass.
This control is responsible for lowering audible distortion artifacts and providing aggressive attack through the
operating band pass of the system. The amplier, which is
mounted on a large, nned aluminum heat sink, is rated at
500 watts rms continuous output.
trol system, allowing for exible integration with active or
passive full range or mid/high speaker systems. The input
panel accepts a line-level input signal and has LOOP OUT
connectors for signal routing to other devices. It also has
HIGH PASS out connectors for connection to active full range
speakers or ampliers powering passive full range speakers.
All signal routing is through XLR connectors in L+R stereo
or mono. There is a phase selection switch and a recessed
level control. The system features thermal protection for the
power supply and amplier and also incorporates rms limiting protection for the amplier stage that limits the amount
of long-term power delivered to the transducer.
The cabinet is constructed using 18 mm thick multi-
layered birch plywood and nished in black splatter paint.
There is one handle on each side for efcient loading and
transport as well as a top, female pole mount xture.
designed to provide high current levels at all
The SWA1501 features a sophisticated on board con-
R E L A T E D P R O D U C T S
SRM350/SRM450/SR1530/SA1521/SA1232 Active Loudspeakers, SWA1801
12-Channel Mic/Line
Mic/Line Mixer, 1604-VLZ
Channel Mic/Line Mixers.
Active Subwoofer, 1202-VLZ PRO
Mixer, 1402-VLZ PRO 14-Channel
PRO and 1642-VLZ PRO 16-
Active Subwoofer System
Features
Active, high-output 15-inch subwoofer system with
3-inch voice coil
High-efciency/high-current 500 watt rms
continuous output amplier
High output 128 dB of peak SPL
Response down to 36 Hz (–10 dB point)
Can be used with active or passive speaker systems
Built-in crossover network with stereo or mono high-
pass outputs
Recessed level control, center detent rotating knob
(–15 to +5 dB)
Recessed phase switch (0°–180°)
Super compact, portable enclosure
Small footprint allows for unobtrusive,
strategic placement
Baltic birch wood construction, built-in pole mount
Correctly weight-balanced enclosure
Two comfortable side handles for easy carrying and
set up
Applications
Live Sound/Music Reinforcement
High-Level AV Playback
Small to Medium-Sized Portable PA Systems
Corporate Events
Night Clubs
Houses of Worship
O F 4 P A G E S
1
SPEAKER
SWA1501
SWA1501
O F 4 P A G E S
Active Subwoofer System
SPEAKER
SWA1501
17.2" (436 mm)
17.2" (436 mm)
23.7" (603 mm)
23.7" (603 mm)
23.5" (597 mm)
FRONT SIDE
TO
P
SWA1501
Active Subwoofer System
SPEAKER
SWA1501 Technical Specications
System Acoustic
Acoustic Performance
–3 dB Response: 47 Hz–120 Hz
–10 dB Response: 36 Hz–120 Hz
Max SPL Long-Term: 125 dB
Max SPL Peak: 128 dB
Crossover Point: 120 Hz
Input/Output
SWA1501
Input: Stereo bal./unbal. female XLR
Input Impedance: 50 kΩ
Loop-Through: Stereo bal./unbal. male XLR
High Pass Output: Stereo bal./unbal. male XLR
Level Control: Recessed rotating knob, center detent
(–15 to +5 dB)
Phase Control (0° – 180°): Recessed sliding switch
Amplier
Total Amplier Power: 500 W continuous*
700 W peak
Type: High-efciency, high-current Class G hybrid
Rated THD: .03%
*Rated power is continuous rms wattage into transducer’s
rated impedance @ 100 Hz
Safety Features
Protection: Low-frequency dynamic bass protection,
rms limiting, power supply and amplier
thermal protection
Display: Signal present, limit, power on, and
thermal (cool down auto-reset) LEDs
Physical
Basic Design: Compact/rectangular
Material: .75" (18 mm) thick 13-ply baltic birch plywood
Finish: High-quality splatter black paint
Handles: One on each side
Pole Mount: Metal pole mount located on top of cabinet
Dimensions (HxWxD): 23.5" x 17.2" x 23.7"
(597 mm x 436 mm x 603 mm)
Weight: 88 lbs (40 kg)
SWA1501 Dimensions
Transducer
Number of Drivers: 1
Woofer Size: 15" (380 mm)
Voice Coil Diameter: 3" (75 mm)
Diaphragm Material: Epoxy-reinforced cellulose
Magnet Type: Ferrite
Line Input Power
US: 120 VAC, 60 Hz
Recommended Amperage Service: 8 A
Europe: 230 VAC, 50 Hz
Recommended Amperage Service: 4 A
AC Connector: 3-pin IEC 250 VAC, 16 A male
Control System Function
Electronic Crossover
Equalization
O F 4 P A G E S
2
SWA1501
THRU
(FULL RANGE OUTPUT)
LIMIT SIGNAL THERMAL POWE
R
HIGH PASS
(MID/HIGH FREQ
)
OUTPU
T
SUBWOOFER
CONTROL
FULL RANG
E
INPU
T
PARALLEL
120Hz
NORMAL
REV 180
PHASE
L
R
SUBWOOFER
LEVEL
NORMAL
IN OUT
L
R
Fundamental
Second
Third
SWA1501 Frequency Response On-Axis
Frequency (Hz)
SPL, 100 dB @ 100 Hz (ref.)
20
40
50
60
70
80
90
100
110
100 1000 10000 20000
Active Subwoofer System
SWA1501 On-Axis Frequency Response
(With Second and Third Harmonic Components)
SWA1501 Rear Panel Connector Plate
SPEAKER
SWA1501
3
O F 4 P A G E S
SWA1501
Active Subwoofer System
SPEAKER
SWA1501
Architects’ and Engineers’ Specications
The active subwoofer loudspeaker system shall
incorporate one 15-inch low-frequency (LF) transducer mounted within a vented enclosure and
tuned for optimum low-frequency response. System
frequency response shall vary no more than ±3 dB
from 47 Hz to 120 Hz measured on axis. The loudspeaker shall incorporate a low-frequency amplier
system capable of delivering 500 watts rms over
a frequency range of 30 Hz to 150 Hz. The system
shall provide 125 dB of continuous output and
128 dB of peak output. The amplier system shall
be mounted on an aluminum heat sink, which shall
be mounted on the rear of the enclosure, and shall
be convection cooled.
The rear-mounted amplier assembly shall comprise separate signal and AC power panels separated by a large aluminum heat sink. The signal
input panel shall contain two input and two loopthrough XLR connectors, two high-pass output XLR
connectors, a volume level control, a phase switch,
and four status LEDs for Power ON, Signal Present, Limit, and Thermal functions. The system shall
accept a standard line-level signal via the XLR input
connectors. The power switch and IEC AC connector
shall be located on the power panel.
Thermal protection shall be provided by a heat
sink-mounted thermal sensor, which monitors the
heat sink temperature and triggers the thermal
protection circuit should the temperature exceed
140° F (60° C). The Thermal LED shall light and the
input signal shall be muted until the heat sink cools
to a safe operating level, at which point the thermal
protection circuit auto-resets and normal operation
resumes.
Overload protection shall be provided by a limiter circuit, which monitors the amplier output and
reduces the input level to the amplier should the
amplier output begin to clip.
The enclosure shall have a rectangular shape
and shall incorporate two side handles, one on each
side, and a top-mounted pole receptacle. The enclosure shall be constructed of multi-ply wood.
The active subwoofer loudspeaker system shall
be the Mackie SWA1501.
www.mackie.com
16220 Wood-Red Road NE, Woodinville, WA 98072 USA
800.898.3211, fax 425.487.4337, sales@mackie.com
UK +44.1268.570.808, fax +44.1268.570.809, uk@mackie.com
Electronic les for this product available at:
www.mackie.com
This Specication Sheet SWA1501_SS.PDF
Owner/Operator’s Manual SWA1501_OM.PDF
LOUD Technologies continually engages in research related to product improvement. New material,
production methods, and design renements are introduced into existing products without notice
as a routine expression of that philosophy. For this reason, any current LOUD Technologies product
may differ in some respect from its published description, but will always equal or exceed the original design specications unless otherwise stated. ©1999-2004 LOUD Technologies Inc. All rights
reserved.
Part No. 0003213 Rev B 09/04
O F 4 P A G E S
4
Loading...