Studio-quality sound in a 12" active PA speaker.

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The Mackie SRM450 v2 PA Speakers retain the best of the original SRM design, including Mackie signature Active architecture and its renowned rugged durability. With ultra-efficient switching power supplies, a lightweight neodymium woofer, an all-new compression driver and Class-D Fast Recovery amplification (300W LF/100W HF), the SRM450v2 packs way more power, clarity and punch. Its wide dispersion, outstanding bass extension and ultra-low distortion mean the SRM450v2 delivers pure studio monitor fidelity at full-on loudspeaker levels. The Mackie SRM450v2 Active loudspeaker combines superior quality with innovative technology to bring ultimate performance and reliability to the legendary Sound Reinforcement Monitor (SRM) series.

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Mackie SRM450 v2 Active PA Loudspeaker Features:

2-way bi-amplified, optimized active loudspeaker systemHigh-output precision titanium compression driverNeodymium long-throw low frequency transducer with 3-inch voice coilServo Feedback controlled woofer for tight low-end punch300W class-D, Fast Recovery LF amp/100W HF ampUltrawide, smooth dispersion via multi-cell horn aperture and HF waveguideBuilt-in phase-accurate 24dB Linkwitz-Riley electronic crossoverMackie Active Electronic time alignment, phase correction and EQ for studio quality soundMic/line input and pass-thru connectorLightweight for ultimate portability (40 lb.)Flyable, Pole Mountable, Floor Wedge-able

Mackie SRM450 v2 Active PA Loudspeaker Specifications:

Input Type: Balanced DifferentialInput Impedance, Line: 20k ohmsInput Protection: RFI and level protectedSensitivity Line: +4 dBu (center detent), Mic: -36 dBuMaximum Input Level, Line: +22 dBuLow-Cut Frequency: 75Hz, Second-order filterAcoustic Contour Equalization Peaking:+3 dB @ 100Hz+3 dB @ 12kHzEnclosure Alignment: Sixth-OrderOver-Excursion Protection: second-order, high-pass filterThermal Protection: Amplifier shutdown, auto resetLow-Line Voltage Shut Down: 60% Nominal lineFrequency Range (-10 dB): 45Hz - 20KHzFrequency Response (±3 dB) 55Hz - 18kHzMaximum Peak SPL @ 1m: 127dBLow-Freq Crossover: 24 dB/octave, time offset correctedHigh-Freq Crossover: 24 dB/octaveCrossover Frequency: 1.6kHzDriver Protection: independent LF and HF compressorsLow-Freq Roll-Off: dynamic-signal level dependentAccessory Interface ±15V DC, normalized signal I/OOperating Temperature Range: -10°C to 45° C (14°F to 113°F)Transducer Low-Frequency Transducer: Diameter 300mm (12") Power Handling 450 watts RMS Frequency Range 45Hz - 3kHzHi-Frequency Driver and Horn: Diaphragm Diameter 44mm (1.75") Exit Throat Diameter 25mm (1") Diaphragm Material Titanium Sensitivity (1W@1m) 106 dB Power Handling 100 watts RMS Frequency Range 1kHz - 20kHz Horn Type Composite: Exponential and Conical Mouth Size 305mm (12") W x 178mm (7") HHorn Coverage : Horizontal Coverage 90° Vertical Coverage 45° _ Power Amplifier and System Low-Frequency Power Amplifier: Rated Power 300 watts RMS Rated THD < 0.1% Cooling Convection Extrusion Design Class G, Parametric Servo FeedbackHigh-frequency amplifier: Rated Power 100 watts @ High-Frequency Driver Impedance Rated THD < 0.1% Cooling Convection Extrusion Design Conventional Class AB