Mackie SRM450 V3 Speaker (Active)


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Quick overview

The Mackie SRM450 speaker features HD audio processing that offers more open and natural sound quality than any other portable loudspeaker out there. Also included is an automatic feedback destroyer, application specific speaker modes and integrated 2-channel mixer for a truly versatile PA speaker.

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The Mackie SRM450 is a 12" 1000w high-performance speaker. The SRM has improved on the speaker's proven performance history by adding a brand new 1000w peak power amplifier built into the back of the unit for high output use of the speaker. The SRM also features Mackie's high definition audio processing to bring you an outstanding, professional sound quality with unparalleled sound clarity at high volume.

The SRM450 v3 also features a feedback destroyer, with the push of one button the speaker will automatically destroy any feedback and optimise your sound within seconds. The SRM also comes with four speaker modes (PA, DJ, Monitor and Soloist) which all can be changed with the use of one button making the switch easy. There is also an integrated two-channel mixer which allows you to mix multiple sources with the utilisation of the speakers Jack, XLR or RCA connectors. This speaker also comes with a smart protect DSP to protect your speakers when they may get pushed a little too hard.

Note: Stand not included.

Mackie SRM450 V3 Main Features:
  • 1000W system power paired with custom transducers deliver gig-level volumes with room to spare
  • 12″ high-output LF driver / 1.4″ titanium dome compression driver
  • High-Definition Audio Processing for professional sound with unmatched clarity
  • Patented acoustic correction developed with touring geniuses at EAW®
  • Precision 2-way crossover
  • Driver time alignment and phase correction
  • Quick one-button Speaker Mode selection for application-specific voicing (PA, DJ, Monitor and Soloist)
  • Effortlessly eliminate nasty feedback with one-button automatic Feedback Destroyer
  • Integrated 2-channel mixer featuring dual Mackie Wide-Z™ inputs
  • Handles anything from mics to guitars to mixers with a single twist of the gain knob
  • Includes stereo RCA inputs for easy connection to music source
  • Perfect for the singer/songwriter, plug in and leave the mixer at home
  • Smart Protect™ DSP kicks in to protect your investment when things get pushed a little too hard
  • Monitor-specific angle and voicing mode perfect for cutting through on stage
  • Flyable for permanent install, both vertically and horizontally
  • Proven highly-durable, portable design
  • 37.0 lbs / 16.8 kg

Mackie SRM450 V3 Tech Spec

Acoustic Performance

Frequency Response (–3 dB) 47 Hz – 20 kHz
Frequency Response (–10 dB) 42 Hz – 23 kHz
Max peak SPL 128 dB
Crossover Point 3 kHz
Dispersion 90 ° x 45 °


High Frequency Section

Compression Driver 1.4 in / 36 mm
Diaphragm Material Titanium
Magnet Material Ferrite


Low Frequency Section

Woofer Diameter 12.0 in / 305 mm
Diaphragm Material Paper
Magnet Material Ferrite


Power Amplifiers

System Power Amplification
Rated Power 500 watts rms
1000 watts peak
Low Frequency Power Amplifier
Rated Power 400 watts rms
800 watts peak
Rated THD < 1%
Cooling Convection
Design Class D
High Frequency Power Amplifier
Rated Power 100 watts rms
200 watts peak
Rated THD < 1%
Cooling Convection
Design Class AB



Channel 1
Mic-Line 8 kΩ balanced
1/4" TRS, Wide-Z™ 1 MΩ unbalanced
Channel 2
Mic-Line 8 kΩ balanced
1/4" TRS, Wide-Z™ 1 MΩ unbalanced
RCA 25 kΩ unbalanced
Thru Male XLR balanced
[Passive when the Ch 1 / Mix switch
is in the “out” (Ch 1) position]
[Active when the Ch 1 / Mix switch
is in the “in” (Mix) position]



Operating Temperature
~[extended ambient temperature]
0 - 40 °C
32 - 104 °F


Safety Features

Input Protection Peak and RMS limiting, power supply and amplifier thermal protection
Display LEDs Defeatable front power, input signal/OL, speaker mode, feedback destroyer on/off and active filters, system limiter


Construction Features

Cabinet Polypropylene
Finish Black, textured finish
Grille Perforated metal with weather-resistant coating
Fly Points Three M10 x 1.5 x 20 mm
Monitor Angle 40 °


Mounting Methods

Method Floor mount, pole mount or fly via three integrated M10 mounting bolts (using M10 x 1.5 x 20mm forged shoulder eyebolts).


Physical Properties (Packaged Product)

Height 29.0 in / 737 mm
Depth 17.5 in / 445 mm
Width 17.0 in / 432 mm
Weight 43 lb / 19.5 kg


Physical Properties (Product)

Height 26.1 in / 663 mm
Depth 16.0 in / 403 mm
Width 14.8 in / 376 mm
Weight 37 lb / 16.8 kg

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