By: Mackie
Professional Audio / Video Products
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
300W Portable Powered Loudspeaker

Live sound sometimes seems like a wild, uncaged animal—very hard to control. With the SRM Series Portable Active Loudspeakers, we came up with the technology to help tame the beast, so you could focus on your performance, instead of being distracted by constant EQ and level tweaks. Now, with the SRM450v2, live sound is whipped completely into submission, giving you more control over your shows than ever. Thanks to its all-new design—from adding new amps and transducers to a new lightweight power supply—the SRM450v2 surpasses the performance of the original SRM450 to deliver pure studio monitor sound at more powerful, full-on loudspeaker levels. We kept it affordable, too—even though the SRM450v2 is a complete redesign from inside out, we retained the musician-friendly price tag. With the SRM450v2, live never sounded so good …or behaved so well.


Available Options Include:

0027377-00 Amplifier Assembly for SRM450v2 (100-120VAC)
0027377-01 Amplifier Assembly for SRM450v2 (220-240VAC)
0025726 Compression Driver for SRM450v2

SRM450V2 features include:

  • 12" high-output woofer
  • 1.4" titanium dome compression driver
  • Eliminate feedback with one-button automatic "Feedback Destroyer"
  • Precision 2-way crossover
  • Driver time alignment & phase correction
  • System protection / limiting
  • Monitor-specific angle and voicing mode perfect for cutting through on stage
  • Flyable for permanent install, both vertically and horizontally
  • Durable, portable design
  • Weight: 37.0 lb (16.8 kg)
Frequency Response 47 Hz - 20 kHz (-3 dB)
42 Hz - 23 kHz (-10 dB)
Maximum SPL 128 dB SPL
Dispersion 90˚ x 45˚, (H x V)
Compression Driver 1.4' (36 mm)
Crossover Frequency 3 kHz
Diaphragm Titanium (tweeter)
Magnet Ferrite
Woofer Diameter 12.0" (305 mm)
Cone Material Paper (woofer)
Rated Power 500 W RMS, 1000 W peak (overall)
400 W RMS, 800 W peak (LF)
100 W RMS, 200 W peak (HF)
Amplification Class D (LF)
Class AB (HF)
THD < 1%
Cooling Convection
Input Channel 1: Mic/Line, female XLR / 1/4" TRS combo
Channel 2: Mic/Line, female XLR / 1/4" TRS combo, stereo RCA
Input Impedance Channel 1: 8 kohms balanced , 10 Mohm unbalanced
Channel 2: 8 kohms balanced , 25 kohms 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
Power US Detachable Line Cord: 100 – 120 VAC, 50 – 60 Hz, 160W


EU Detachable Line Cord:  220 – 240 VAC, 50 – 60 Hz, 160W

AC Connector:  3-pin IEC 250 VAC, 10 A male

Power Supply Type:  Switchmode

Operating Temperature:  0 - 40º C

Extended Ambient Temperature:  32 - 104º F


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


Finish: black, textured finish

Grille: perforated metal with weather-resistant coating

Fly points: three M 0.4 x .05 x .78" (10 x 1.5 x 20 mm)

Monitor angle: 40º

Mounting Floor mount, pole mount or fly via three integrated M10 mounting points (using M 0.4 x .05 x .78" (10 x 1.5 x 20 mm) forged shoulder eyebolts)
Dimensions 26.1 x 16.0 x 14.8" (663.0 x 406.0

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Prices and specifications subject to change without notice.