Two Fast Recovery™ amplifiers independently power a 12-inch lightweight woofer and a precision titanium compression driver. Mackie’s sophisticated Active electronics provide phase correction, crossover, time correction, equalization, and protection circuitry.

A heat-treated titanium compression driver with multi-cell aperture directs pristine highs through an exponential high-frequency waveguide, allowing for ultra-wide dispersion. This allows the SRM450 to deliver clear, smooth sound to audience members up to 45° off axis.

The 12-inch lightweight woofer provides a greater magnetic field with far less material, making the woofer extremely lightweight without sacrificing performance. The 3-inch voice coil allows the driver to run cooler, delivering consistent performance even after long hours of use.

Mackie-designed Active electronics provide equalization, crossover, time alignment, and phase correction to enhance sonic performance. Protective circuitry includes over-excursion protection, low-line voltage shut-down, thermal protection, level dependent low-frequency roll-off and independent LF and HF limiters.

The SRM450 features a number of dedicated controls including a mic/line switch, a single microphone and line input level control, and a contour switch for low-level sound reinforcement applications. There is also a timed turnoff feature that turns off the amplifiers if the signal drops below –45 dBu for three minutes.

The center of gravity, handle locations, handle design, position of fly-points and ease of use have been ergonomically designed. There is also an integrated pole mount cup and a weather resistant steel grille. The asymmetrical trapezoidal cabinet has been designed to provide an ideal floor monitoring position.

The cabinet is constructed of high-pressure injected polypropylene. The enclosure features ample amounts of reinforcement ribbing and structural strengthening resulting in a strong, super-rigid design providing ideal acoustical characteristics.

• 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 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
• Proven highly-durable, portable design

Spec Sheet

Manual