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SRM450 V2

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The Mackie SRM450 v2 delivers live sound that sounds like it should! The SRM450v2 Active loudspeaker combines superior quality with innovative technology to bring ultimate performance - and reliability - to Mackie's legendary Sound Reinforcement Monitor (SRM) series. The SRM450v2 retains the best of the original SRM design, including Mackie signature Active architecture and its renowned rugged durability. But 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. And its wide dispersion, outstanding bass extension and ultra-low distortion mean the SRM450 v2 delivers pure studio monitor fidelity at full-on loudspeaker levels. Thanks to the SRM450v2, live has never sounded so good.
  • PDF Manual
  • PDF Spec Sheet
  • 2-way bi-amplified, optimized Active loudspeaker system
  • High-output precision titanium compression driver
  • Neodymium long-throw low frequency transducer with 3-inch voice coil
  • Servo Feedback controlled woofer for tight low-end punch
  • 300W class-D, Fast Recovery LF amp / 100W HF amp
  • Ultra-wide, smooth dispersion via multi-cell horn aperture and HF waveguide
  • Built-in phase-accurate 24dB Linkwitz-Riley electronic crossover
  • Mackie Active Electronic time alignment, phase correction and EQ for studio quality sound
  • Mic/line input and pass-thru connector
  • Lightweight for ultimate portability (40 lbs)
  • Flyable, Pole Mountable, Floor Wedge-able

    System Specs
  • Frequency Response (–3 dB): 55 Hz – 18 kHz
  • Frequency Range (–10 dB): 4 5 Hz – 20 kHz
  • Directivity Factor; Q (DI): 9 .95 (9.98), averaged 2 kHz to 10 kHz
  • Maximum SPL Long-term @ 1m: 124 dB
  • Maximum SPL Peak @ 1m: 127 dB
  • Crossover: Linkwitz-Riley, 24 dB/octave @ 1600 Hz

    Audio
  • Input Type: Balanced Differential
  • Input Impedance: 20kOhms
  • Input Protection: RFI and level protected
  • Sensitivity:
    - Line: +4 dBu (center detent)
    - Mic: –36 dBu
  • Maximum Input Level: +22 dBu
  • Low-Cut Frequency: 75 Hz, Second-order filter
  • Acoustic Contour Equalization: Peaking:
    - +3 dB @ 100 Hz
    - +3 dB @ 12 kHz
  • Operating Temperature Range: –10ºC to 45ºC (14ºF to 113ºF)
    Power Amplifiers
  • Low-Frequency Power Amplifier:
    - Rated Power: 300 watts*
    - Rated THD: < 0.1%
    - Cooling: Convection Extrusion
    - Design: Class D, Parametric Servo Feedback
  • High-Frequency Power Amplifier:
    - Rated Power: 100 watts*
    - Rated THD: < 0.1%
    - Cooling: Convection Extrusion
    - Design: Conventional Class AB
  • Rated power is continuous RMS wattage into transducer’s rated impedance @ 5 kHz for the HF amplifier and @ 500 Hz for the LF amplifier.

    Transducers
  • Low-Frequency Transducer:
    - Diameter: 12 in (300 mm)
    - Voice Coil Diameter: 3.0 in (75 mm)
    - Sensitivity (1W@1m): 98 dB
    - Nominal Impedance: 8 ohms
    - Power Handling: 600 Watts, program
    - Frequency Range: 45 Hz – 3 kHz
  • High-Frequency Transducer:
    - Diaphragm Diameter: 1.75 in (44.5 mm)
    - Diaphragm Material: Heat treated titanium
    - Sensitivity (1W@1m): 106 dB
    - Nominal Impedance: 8 ohms
    - Power Handling: 100 watts, program
    - Frequency Range: 1 kHz – 20 kHz
  • Horn Design:
    - Type: Conical and Exponential
    - Mouth Size: 12 in (304.8 mm) (W) x 7 in (177.8 mm) (H)
    - Throat Diameter: 1 in (25.4 mm)
    - Horizontal Coverage: 90º (1 kHz–20 kHz)
    - Vertical Coverage: 45º (2.8 kHz–20 kHz)

    Line Input Power
  • US: 120 VAC, 60Hz
  • Recommended Amperage Service: 2.5 amps
    Control System Function
  • Electronic Crossover
  • Phase Alignment
  • Equalization
  • Parametric Equalization

    Safety Features
  • Over-Excursion Protection: Second-Order High-Pass Filter
  • Thermal Protection: Amplifier shutdown, auto-reset
  • Low-Line Voltage Shut Down: 60% Nominal line
  • Driver Protection: Independent LF and HF compressors
  • Low-Frequency Roll-Off: Dynamic, signal-level dependent

    Construction Features
  • Basic Design: Asymmetrical Trapezoidal
  • Enclosure Alignment: Sixth-Order
  • Material: Polypropylene
  • Finish: Midnight Blue, textured finish
  • Handles: One on each side, one on top
  • Mounting Methods:
    - Integrated mounting points, M10
    - Two each located on each side, top, bottom, and rear of enclosure
  • Grille: Perforated metal with weather-resistant coating
  • Display: LEDs Signal Present, Peak, Power ON, and Thermal
    Physical Properties
  • Height: 26.0 in (660 mm)
  • Width: 15.4 in (390 mm)
  • Depth: 14.8 in (376 mm)
  • Weight: 40 lbs. (18 kg)

The “SRM” Stands for Sound Reinforcement Monitor
Over a decade ago, Greg Mackie and a dedicated team of engineers set out to create a portable loudspeaker that could deliver studio monitor sound quality. Unlike a relatively small, acoustically controlled studio where the “sweet spot” is well defined, live venues vary greatly, and most are far from acoustically balanced. Despite the challenges, after two years of extensive research and development, the first Sound Reinforcement Monitor was born—a loudspeaker that truly lived up to its name. The SRM350v2 continues the SRM350’s tradition of studio monitor sound quality—and trumps it—to deliver sound that makes any venue seem like a well-tuned studio.

Ultra-Wide Dispersion
Undoubtedly you’ve been to a show where the sound is all over the map—stand in front of the band, it sounds okay, but move a little to your left or right and all of a sudden you’ve got mud in your ears. When the SRM350v2 loudspeakers are on stage, no matter where you stand, you hear sound with impeccable stereo imaging, depth of field and definition—at full-on loudspeaker levels. This is due to the SRM350v2’s wide dispersion pattern, which is achieved through its High Frequency waveguide.

Professional Grade Transducers
The SRM350v2 has sounds even better than the original, in part, because of it’s premium transducers. The new 10” neodymium woofer has less mass and quicker response providing incredibly punchy response from such a small loudspeaker. Not to mention it is much lighter than a traditional ceramic magnet based transducer. Additionally, it’s titanium compression driver provides sparkle and clarity beyond the original design keeping it’s characteristic sound in-line with it’s big brother, the SRM450v2. The acoustic gurus out at EAW spent months and months tweaking these custom designed transducers so that the SRM350v2 would deliver the best sound possible in a small format box.

Super low distortion thanks to Mackie’s own Class-D, Fast Recovery Amplification With its combination of Class D topology and Fast Recovery circuitry, the SRM350v2 operates with incredible efficiency, and delivers much more power and clarity. With this “Class D Fast Recovery amplification,” as we’ve lovingly (and creatively) dubbed the technology, the SRM350v2 handles maximum volume—and associated heat—with ease, so there’s no unwanted noise, and no thermal problems. Even after hours of sustained use at near-peak levels, your sound remains clean and your SRM350v2 keeps cool.

Legendary Active Electronics
In a passive loudspeaker setup, an external amplifier is connected to a passive crossover inside the speaker, which distributes frequencies to the transducers. Because power amps and transducers vary widely in sound and quality, trying to match the right power amp with the right speaker can be challenging, especially if you’re not a professional acoustic technician—or rolling in cash so you can hire one. Our proven Active design does all the work for you. With our SRM350v2, you get a complete loudspeaker system, with complex electronics and carefully chosen components, all precisely tuned and tweaked to work together. The result is a loudspeaker with phenomenal sound quality and power, that’s completely plug-and-play—no EQ needed.

Built-in Protection Circuitry for Long Life
We know our Active loudspeakers are pushed hard—often to, or beyond, the limit. That’s why we have reliable protection circuitry built in to every one. The SRM350v2 employs a built-in limiter for less distortion at peak levels. And thanks to theadvanced technology of its power supply and Class-D amp topology, the SRM350v2 is greater than 90 percent efficient—more of the power from your outlet goes straight to the transducer, without the power supply and amp giving off loads of heat. Less heat means better performance, and longer life.

Versatile, Portable, Tough—And They Look Good, Too
When designing the SRM350v2, we considered every angle. From every angle is just how you can position it, too—pole-mount it from the bottom, fly it vertically or horizontally via its optional hanging bracket, or use it as a wedge monitor. With all this flexibility, it’s the most versatile portable Active loudspeaker around. And now moving it into place is easier than ever. Weighing in at just 26 pounds—now that’s light!—you’ll have more than enough strength left over to deliver an electrifying performance after loading in. Plus, the SRM350v2 retains its rugged, Mackie “built-like-a-tank” durability, thanks to the polypropylene cabinet—now in a tasty hue of Midnight Blue. So not only do you get a portable loudspeaker that sounds phenomenal, you get one that’s tough and portable for the road, and handsome enough for the show.


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