Mackie SWA1801 manual Architects’ and Engineers’ Specifications

SPEAKER

SWA1801 Active Subwoofer System

SWA1801

Architects’ and Engineers’ Specifications

The active subwoofer loudspeaker system shall incorporate one 18-inch low-frequency (LF) trans- ducer mounted within a vented enclosure and tuned for optimum low-frequency response. System frequency response shall vary no more than ±3 dB from 45 Hz to 120 Hz measured on axis. The loud- speaker shall incorporate a low-frequency amplifier system capable of delivering 800 watts rms over

a frequency range of 30 Hz to 150 Hz. The system shall provide 129 dB of continuous output and

135 dB of peak output. The amplifier 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 amplifier assembly shall com- prise separate signal and AC power panels sepa- rated by a large aluminum heat sink. The signal input panel shall contain two input and two loop- through XLR connectors, two high-pass output XLR connectors, a volume level control, a phase switch, and four status LEDs for Power ON, Signal Pres- ent, 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 lim- iter circuit, which monitors the amplifier output and reduces the input level to the amplifier should the amplifier 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 enclo- sure shall be constructed of multi-ply wood.

The active subwoofer loudspeaker system shall be the Mackie SWA1801.

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16220 Wood-Red Road NE, Woodinville, WA 98072 USA 800.898.3211, fax 425.487.4337, sales@mackie.com

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Electronic files for this product available at: www.mackie.com

This Specification Sheet	SWA1801_SS.PDF
Owner/Operator’s Manual	SWA1801_OM.PDF

LOUD Technologies continually engages in research related to product improvement. New material, production methods, and design refinements 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 origi- nal design specifications unless otherwise stated. ©1999-2004 LOUD Technologies Inc. All rights reserved.

Part No. 0003348 Rev C 09/05

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