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Mackie SRM450 V2 Original Black Powered PA Speaker

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Product Description

Out of the Blue and Back in Black!
The original SRM 450 Active loudspeakers from Mackie had that distinctive shape with a molded black exterior, When Mackie redesigned the SRM 450 they released it in a hazy blue and many users missed the sleek black design. Now here you have it, Mackie's SRM 450 V2 is here in the original black providing that same superior quality, innovative technology that provides the unparalleled performance that Mackie fans expect. 

Incredibly reliable,  the SRM 450 V2 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, upgraded compression driver and Class-D Fast Recovery amplification (300W LF/100W HF). The SRM 450 V2 packs way more power, clarity and punch with a wide dispersion range, outstanding bass extension and ultra-low distortion.

Mackie SRM 450 V2 Features

  • 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
  • Active Electronic time alignment, phase correction and EQ
  • Mic/line input and pass-thru connector
  • Lightweight for ultimate portability (40lbs)
  • Flyable, Pole Mountable, Floor Wedge-able
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 SRM 450 V2 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 SRM 450 V2’s wide dispersion pattern, which is achieved through its multi-cell horn throat aperture. To those of you whose eyes just glazed over, let’s just tell you what it does—the multi-cell horn throat aperture allows for much wider and more even dispersion of high and mid frequencies, so whether you’re listening intently front and center, or playing it cool on the perimeter, you’ll hear the same great mix.

Stunning Bass via Servo Feedback Controlled, Neodymium Woofer
Many portable loudspeakers produce lows that lack substance—they just don’t have it in ‘em to give you that chest-pounding punch. But the SRM 450 V2 delivers astonishingly deep and defined bass frequencies. In fact, it outperforms the original SRM 450, which was renowned for its ability to deliver real low-down sound. That’s thanks to the SRM 450 V2’s servo feedback technology combined with its all-new neodymium woofer and 3-inch voice coil.

Based on Mackie's award-winning HR824mk2 studio monitor technology, the servo feedback damping electronic circuit within the SRM 450 V2 locks the woofer in place with the positive and negative outputs of the amplifier. This creates a solid direct-coupling that allows the SRM 450 V2 to deliver extremely deep bass from a small cabinet. And the new neodymium woofer’s magnet is lighter in mass, therefore faster than ceramics, giving the SRM 450 V2’s bass more punch. The new longer 3-inch voice coil allows the woofer to handle heat more efficiently, so it produces a consistently full dynamic range—even at maximum output. So you get full, thumping, detailed lows, even after long hours of use at near-peak volumes.

Class-D, Fast Recovery Amplification
With its combination of Class D topology and Fast Recovery circuitry, the SRM 450 V2 operates with incredible efficiency, and delivers much more power and clarity. With Class D Fast Recovery amplification, the SRM 450 V2 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 SRM 450 V2 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. Mackie's proven Active design does all the work for you. With the SRM 450 V2, 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
Mackie knows that their Active loudspeakers are pushed hard—often to, or beyond, the limit. That’s why they have reliable protection circuitry built in to every one. The SRM 450 V2 employs a built-in limiter for less distortion at peak levels, and an automatic sliding high pass filter to give you that little bit extra volume when the crowd demands more. And thanks to the advanced technology of its power supply and Class-D amp topology, the SRM 450 V2 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 SRM 450 V2, Mackie 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 integrated M10 mounting points, 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 about 40 pounds—11 pounds lighter than the original SRM 450—you’ll have plenty of strength left over to play after loading in. Plus, the SRM 450 V2 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.

Product Specifications

Mackie SRM450 v2 System Specifications

  • 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)
Disclaimer
Since Mackie is always striving to make their products better by incorporating new and improved materials, components, and manufacturing methods, they reserve the right to change these specifications at any time without notice.

Helpful Info about the Manufacturer
Phone:  800-258-6883 Warranty:  All SRM, DLM, HD, C Series Speakers, all PPM Mixers, all HRmk2 Studio Monitors: 3-year inclusive of electronics, 2-year drivers (where applicable), nontransferable.

Thump and S500 Series Speakers, all Onyx Mixers and Recording Interfaces, all DL, VLZ4, ProFX mixers, all MRmk3 Studio Monitors, Big Knob, all MCU Pro Series, SP260, all FRS Series Amplifiers, Mixer Bags/Covers/Hardware, Loudspeaker Bags/Covers/Hardware: 1-year all inclusive, nontransferable
Greg Moir from Olympia Wa
Overall Rating
General
Quality
Ease of Use
Features
Sound
Subject
love it
General
Your general opinion of this product.
Very good product.
Quality
Would you consider this product to be made well? How dependable?
Yes it is very well made.
Ease of Use
How easy is this product to use? How easy is the product to use with other products? Did it take long for you to learn to use this product? Was the manual helpful? How playable do you consider this product to be?
Very easy to understand and use.
Features
What do you consider to be the best features of this product? What features would you add to this product if you could?
The gain/level control to help with balancing the sound.
Sound
How is the tone?
Very good tone response. It could use a little bit lower bottom end for the sub. But a separate sub gives the room the prefect the sound.
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