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Mackie SRM450 Powered PA Speaker

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Product Description

The Mackie SRM450 is a completely self-contained, highly refined active sound reinforcement monitor. The 2-way SRM450 features built-in power (300 watts for the 12-inch woofer and 100 watts for the high output compression driver), a 24db/octave Linkwitz-Riley electronic crossover and electronic time correction, phase alignment and EQ.

The full low-end response of the SRM450's 12-inch woofer is unlike any other system. High end is delivered through a studio-quality max dispersion horn. The SRM450 may be pole mounted, flown or used as a fantastic floor wedge.

Features & specs include a female XLR input, a parallel Thru (male XLR) connector, 45Hz – 20kHz frequency response, and a 123dB SPL rating. Dimensions: approx 26 x 15.35 x 15 inches, 51 lbs.

Mackie SRM450 Features

  • 2-way bi-amplified, optimized active system - no external power amplifier needed!
  • Built-in monolithic FR Series™ 300 watt bass & 100 watt mid/high amplifiers
  • Built-in precision 24dB/oct. Linkwitz-Riley electronic crossover
  • 300mm long-throw frequency transducer
  • High-output precision titanium compression driver
  • Studio-quality maximum dispersion horn design
  • High SPL Output/Low Distortion
  • Electronic Time Correction, Phase Alignment, & Equalization
  • Servo Feedback controlled woofer
  • Tough, impact-resistant, lightweight polypropylene enclosure

Active speaker technology is changing the way we hear music - for the better.

Introducing the SRM450.
Precision 2-way, bi-amplified active PA speaker.
  • Ultra-wide audience coverage
  • Multi-cell high-dispersion horn
  • Damped titanium HF transducer
  • FR™ power built-in - 400 watts RMS actual power delivered to internal transducers
  • Built-in Electronic Equalization, phase alignment, time compensation, and protection circuitry
  • Easy to carry - three balanced, ergonomic handles
  • Easy to set up - pole mountable + multiple fly points
  • Makes a super floor monitor, too
Before you read this, press your mental RESET button.

Forget about what other small PA speakers sound like. Especially forget what so-called "powered" speakers sound like. The active SRM450 is that different.

It has tight, steel-fisted bass to below 55Hz and detailed, articulate treble out to 20,000Hz. Midrange is warm, natural, and free from ear-fatiguing harshness. The SRM450 has astonishingly wide dispersion that lets your whole audience hear clearly, whether they're in the front, back, or way out on the sides of the room.

And above all, the SRM450 cranks! Without a hint of distortion, it effortlessly achieves sound pressure levels that would melt conventional speakers into a pile of molten slag.

Product Specifications

Mackie SRM450 Specifications

    System
  • Input Type: Balanced Differential
  • Input Impedance: Line: 20k ohms
  • Input Protection: RFI and level protected
  • Sensitivity Line: +4 dBu (center detent), Mic: -36 dBu
  • Maximum Input Level: Line: +22 dBu
  • Low-Cut Frequency: 75Hz, Second-order filter
  • Acoustic Contour Equalization: Peaking:
    +3 dB @ 100Hz
    +3 dB @ 12kHz
  • Enclosure Alignment: Sixth-Order
  • Over-Excursion Protection: Second-Order High-Pass Filter
  • Thermal Protection: Amplifier shutdown, auto reset
  • Low-Line Voltage Shut Down: 60% Nominal line
  • Acoustic Frequency Response: 55Hz - 20,000Hz
  • Low-Freq -3 dB Point: 55Hz
  • Maximum SPL @ 1m: 127 dB
  • Low-Freq Crossover: 24 dB/octave, time offset corrected
  • High-Freq Crossover: 24 dB/octave
  • Crossover Frequency: 1600Hz
  • Driver Protection: Independent LF and HF compressors
  • Low-Freq Roll-Off: Dynamic-signal level dependent
  • Accessory Interface: ±15V DC, normalized signal I/O
  • Operating Temperature Range: -10°C to 45° C (14°F to 113°F)

Transducer

    Low-Frequency Transducer
  • Diameter: 300mm (12")
  • Voice Coil Diameter: 63.5mm (2.5")
  • Sensitivity (1W@1m): 98 dB
  • Nominal Impedance: 8 ohms
  • Power Handling: 300 watts
  • Frequency Range: 55Hz - 3000Hz
    Hi-Frequency Driver and Horn
  • Diaphragm Diameter: 44.5mm (1.75")
  • Exit Throat Diameter: 24.5mm (1")
  • Diaphragm Material: Titanium
  • Sensitivity (1W@1m): 106 dB
  • Nominal Impedance: 8 ohms
  • Power Handling: 100 watts
  • Frequency Range: 1000Hz - 20,000Hz
  • Horn Type Composite: Exponential and Conical
  • Mouth Size: 304.8mm (12") W x 177.8mm (7") H
  • Horizontal Coverage: 90° ±10° (1kHz - 20kHz)
  • Vertical Coverage: 45° ±10° (2.8kHz - 20kHz)

Power Amplifier and System

    Low-Frequency Power Amplifier
  • Rated Power: 300 watts
  • Rated THD < 0.03%
  • Cooling Convection Extrusion
  • Design Class G, Parametric Servo Feedback
    High-frequency amplifier
  • Rated Power 100 watts
  • Rated THD < 0.03%
  • Cooling Convection Extrusion
  • Design Conventional Class AB

    Line Input Power
  • US 120V, 60Hz
  • Europe 230V, 50Hz
  • Japan 100V, 50/60Hz
    Physical Properties
  • Height 660mm (25.98")
  • Width 390mm (15.35")
  • Depth 376mm (14.8")
  • Weight 23.2kg (51 lbs.)
  • Enclosure Geometry Asymmetrical Trapezoidal
  • Mounting Methods Integrated mounting points, M10

Since Mackie's always striving to make their stuff better by incorporating new and improved materials, components and manufacturing methods, they reserve the right to change these specifications at any time without notice.

Helpful Info about the Manufacturer
Phone:  800-258-6883 Warranty:  All SRM, DLM, HD, C Series Speakers, all PPM Mixers, all HRmk2 Studio Monitors: 3-year inclusive of electronics, 2-year drivers (where applicable), nontransferable.

Thump and S500 Series Speakers, all Onyx Mixers and Recording Interfaces, all DL, VLZ4, ProFX mixers, all MRmk3 Studio Monitors, Big Knob, all MCU Pro Series, SP260, all FRS Series Amplifiers, Mixer Bags/Covers/Hardware, Loudspeaker Bags/Covers/Hardware: 1-year all inclusive, nontransferable
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