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Item # 485391 | Customer Ratings: Ratings ( 5 Based on 13 reviews)

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Mackie SRM450v2 Active Speaker (Black)
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      Mackie SRM450v2 Active Speaker (Black) (485391)
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2-way biamplified, optimized Active loudspeaker system with smooth, ultrawide dispersion.

The Mackie SRM450 v2 Active Speaker puts your focus on your performance instead of the distraction of constant EQ and level tweaks. While live sound can sometimes seem like a wild, uncaged animal, with the SRM450 Portable Active Loudspeaker, Mackie has created technology to help tame the beast.

Thanks to the Mackie SRM450 v2 speaker's all-new design—from adding new amps and transducers to a new lightweight power supply—the SRM450 v2 surpasses the performance of the original SRM450 to deliver pure studio monitor sound at more powerful, full-on loudspeaker levels. Mackie has also managed to keep the SRM450 v2 affordable for musicians despite a complete redesign from the inside out.

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 2 years of extensive research and development, the first Mackie Sound Reinforcement Monitor was born—a loudspeaker that truly lived up to its name. The Mackie SRM450 v2 continues the SRM450's tradition of studio monitor sound quality delivering sound that makes any venue seem like a well-tuned studio.

Ultrawide Dispersion
Undoubtedly you've been to a show where the sound is all over the map. For instance, stand in front of the band and 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 Mackie SRM450 v2 loudspeakers are onstage, 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 Mackie SRM450 v2 speaker's wide dispersion pattern, which is achieved through its multi-cell horn throat aperture. 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, all new Neodymium Woofer
Many portable loudspeakers produce lows that lack that chest-pounding punch. But the SRM450 v2 delivers astonishingly deep and defined bass frequencies. In fact, it outperforms the original SRM450, which was renowned for its ability to deliver real low-down sound. That's thanks to the SRM450 v2's servo feedback technology combined with its all-new neodymium woofer and 3" voice coil.

Based on Mackie's award-winning HR824mk2 studio monitor technology, the servo feedback damping electronic circuit within the Mackie SRM450 v2 locks the woofer in place with the positive and negative outputs of the amplifier. This creates a solid, direct-coupling that allows the SRM450 v2 to deliver extremely deep bass from a small cabinet. The new neodymium woofer's magnet is lighter in mass, therefore faster than ceramics, giving the SRM450 v2's bass more punch. The new longer 3" 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.

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 SRM450 v2 operates with incredible efficiency, and delivers much more power and clarity. With this Class D Fast Recovery amplification, the SRM450 v2 handles maximum volume—and associated heat—with ease, so there's no unwanted noise or thermal problems. Even after hours of sustained use at near-peak levels, your sound remains clean and your SRM450 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 SRM450 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 is completely plug-and-play—no EQ needed.

Built-In Protection Circuitry for Long Life
Active loudspeakers are pushed hard, often to, or beyond the limit. That's why Mackie built reliable protection circuitry into every unit. The SRM450 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 of extra volume when the crowd demands more. Thanks to the advanced technology of its power supply and Class D amp topology, the SRM450 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 a longer life.

Versatile, Portable, Tough
When designing the SRM450 v2, Mackie considered every angle. You can still achieve great sound whether you polemount 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 one of the most versatile portable active loudspeakers around. Moving it into place is easier than ever too. Weighing in at about 40 lb.—11 lb. lighter than the original SRM450—you'll have plenty of strength left over to play after loading in. Plus, the SRM450 v2 retains its rugged, Mackie built-like-a-tank durability, thanks to the polypropylene cabinet.

Mackie SRM450v2 Active Speaker (Black) Features:

  • 2-way biamplified, optimized Active loudspeaker system
    High-output precision titanium compression driver
    Neodymium long-throw low-frequency transducer with 3" voice coil
    Servo Feedback controlled woofer for tight low-end punch
    300W Class D, Fast Recovery LF amp/100W HF amp
    Ultrawide, 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
    Flyable
    Pole-mountable
    Floor wedgeable


Mackie SRM450v2 Active Speaker (Black) Specifications:

  • System Specifications
    Frequency Response (-3dB): 55Hz-18kHz
    Frequency Range (-10dB): 45Hz-20kHz
    Directivity Factor; Q (DI):9.95 (99.8), averaged 2kHz to 10kHz
    Max SPL Long-term @ 1m: 124dB
    Max SPL Peak @ 1m: 127dB
    Crossover: Linkwitz-Riley, 24dB/octave @ 1600Hz

    Audio
    Input Type: Balanced Differential
    Input Impedance: 20 kohms
    Input Protection: RFI and level protected
    Sensitivity: Line: + 4dBu (center detent), Mic: -36dBu
    Maximum Input Level: + 22dBu
    Low-Cut Frequency: 75Hz, Second-order filter
    Acoustic Contour Equalization
    Peaking: + 3dB @ 100Hz, + 3dB @ 12kHz
    Operating Temperature Range: -10°C to 45°C (14°F to 113°F)

    Power Amplifiers
    Low-Frequency Power Amplifier
    Rated Power: 300 watts (Rated power is continuous rms wattage into transducer's rated impedance @ 5kHz for the HF amplifier and @ 500Hz for the LF amplifier)
    Rated THD: < 0.1%
    Cooling: Convection Extrusion
    Design: Class D, Parametric Servo Feedback

    High-Frequency Power Amplifier
    Rated Power: 100 watts (Rated power is continuous rms wattage into transducer's rated impedance @ 5kHz for the HF amplifier and @ 500Hz for the LF amplifier)
    Rated THD: < 0.1%
    Cooling: Convection Extrusion
    Design: Conventional Class AB

    Transducers
    Low-Frequency Transducer
    Diameter: 12"/300mm
    Voice Coil Diameter: 3.0"/75mm
    Sensitivity (1W@1m): 98dB
    Nominal Impedance: 8 ohms
    Power Handling: 600 watts, program
    Frequency Range: 45Hz-3kHz

    High-Frequency Transducer
    Diaphragm Diameter: 1.75"/44.5mm
    Diaphragm Material: Heat-treated titanium
    Sensitivity (1W@1m): 106dB
    Nominal Impedance: 8 ohms
    Power Handling: 100 watts, program
    Frequency Range: 1kHz-20kHz

    Horn Design
    Type: Conical and Exponential
    Mouth Size: 12"/304.8mm (W) x 7"/177.8mm (H)
    Throat Diameter: 1"/25.4mm
    Horizontal Coverage: 90° (1kHz-20kHz)
    Vertical Coverage: 45° (2.8kHz-20kHz)

    Line Input Power
    US: 120 VAC, 60Hz, Recommended amperage service: 2.5 amps
    Europe: 230 VAC, 50Hz, Recommended amperage service: 1.25 amps
    Japan: 100 VAC, 50/60Hz, Recommended amperage service 3.0 amps
    AC Connector: 3-pin IEC 250 VAC

    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-Freq Roll-Off: Dynamic, signal-level dependent

    Construction Features
    Basic Design: Asymmetrical Trapezoidal
    Enclosure Alignment: Sixth-Order
    Material: Polypropylene
    Finish: Textured finish
    Handles: One on each side, one on top
    Mounting Methods:
    Integrated mounting points, M10
    2 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: 6.0"/660mm
    Width: 15"/0mm
    Depth: 1.8"/76mm
    Weight: 0 lb./18kg

    Audio
    Input Type: Balanced Differential
    Input Impedance: 0 kohms
    Input Protection: RFI and level protected
    Sensitivity: Line: + dBu (center detent), Mic: -6 dBu
    Maximum Input Level: + dBu
    Low-Cut Frequency: 75Hz, Second-order filter
    Acoustic Contour Equalization
    Peaking: + dB @ 100Hz, +dB @ 1kHz
    Operating Temperature Range: -10°C to 5°C (1°F to 11°F)

    Power Amplifiers
    Low-Frequency Power Amplifier
    Rated Power: 300 watts (Rated power is continuous rms wattage into transducer's rated impedance @ 5kHz for the HF amplifier and @ 500Hz for the LF amplifier)
    Rated THD: < 0.1%
    Cooling: Convection Extrusion
    Design: Class D, Parametric Servo Feedback

    High-Frequency Power Amplifier
    Rated Power: 100 watts (Rated power is continuous rms wattage into transducer's rated impedance @ 5kHz for the HF amplifier and @ 500Hz for the LF amplifier)
    Rated THD: < 0.1%
    Cooling: Convection Extrusion
    Design: Conventional Class AB

    Transducers
    Low-Frequency Transducer
    Diameter: 1"/00mm
    Voice Coil Diameter: .0"/75mm
    Sensitivity (1W@1m): 8dB
    Nominal Impedance: 8 ohms
    Power Handling: 600 watts, program
    Frequency Range: 5Hz-kHz

    High-Frequency Transducer
    Diaphragm Diameter: 1.75"/.5mm
    Diaphragm Material: Heat-treated titanium
    Sensitivity (1W@1m): 106dB
    Nominal Impedance: 8 ohms
    Power Handling: 100 watts, program
    Frequency Range: 1kHz-0kHz

    Horn Design
    Type: Conical and Exponential
    Mouth Size: 1"/0.8mm (W) x 7"/177.8mm (H)
    Throat Diameter: 1"/.5mm
    Horizontal Coverage: 0° (1kHz-0kHz)
    Vertical Coverage: 5° (.8kHz-0kHz)

    Line Input Power
    US: 10 VAC, 60Hz, Recommended amperage service .5 amps
    Europe: 0 VAC, 50Hz, Recommended amperage service 1.5 amps
    Japan: 100 VAC, 50/60Hz, Recommended amperage service 3.0 amps
    AC Connector: 3-pin IEC 50 VAC

    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-Freq Roll-Off: Dynamic, signal-level dependent

    Construction Features
    Basic Design: Asymmetrical Trapezoidal
    Enclosure Alignment: Sixth-Order
    Material: Polypropylene
    Finish: Textured finish
    Handles: One on each side, one on top
    Mounting Methods:
    Integrated mounting points, M10
    2 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"/660mm
    Width: 15.4"/390mm
    Depth: 14.8"/376mm
    Weight: 40lb./18kg


Product Reviews
(Based on 13 reviews)
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Viewing Reviews 1 - 3 of 13 |
  • Clear and powerfull

    As reviewed by Dj on 6/7/2010

    I own two currently that I got as monitors for the gigs that I do, but I ended up usind the mackie 450v2 as my main speakers for almost all events. I am going to buy a couple more for my brother to use them because it is easy to transport and very reliable. The sound quality is excellent and the price just makes it extremelly afortable for something that is going to last you a long time. I push them a lot and they never give up. It is more than enough quality sound with a pair of mackie 450v2 for any event that you want to make a good impression.

    11 of 11 people found this review helpful.
    Was this review helpful?
  • very nice speaker

    As reviewed by staurosjohn on 6/28/2010

    Just purchased two of these. They are very surprising for their size. Did not think I could run bass and drums thru these... but they can handle all I give them! A little high in price... but still worth the investment.

    9 of 9 people found this review helpful.
    Was this review helpful?
  • Best Value in Sound Reinforcement

    As reviewed by Frankie Sands on 11/11/2010

    Let me begin by saying I wholeheartedly agree with the positve reviews of the new Mackie srm450v2's. I am a professional singer who does vocal impersonations of Frank Sinatra, Dean Martin & Bobby Darin. I recently decided to purchase my own sound system for smaller venues and rely on Pro sound people only for my larger events. For my type of singing and music tracks, clarity and "room filling" capability is everything. I was fully prepared to buy a pair of JBL EON 515's based on past experience with other JBL products. I had no prior experience with Mackie. I can't thank the sales person enough for suggesting I try the Mackie's. The was no comparison. The srm450v2 was brighter and clearer that the Eon 515. The JBL did not sound "warm as I've heard them described. I think people are confusing warm with "muddy" because that's how they sounded. Muddy and not as loud. I also listened to QSC K series line. They sounded better than the JBL, but no better than the Mackie's. Here's the real bottom line. Can you get speakers that sound better than the Srm450v2? Mackie matches the performance of speakers costing far more. I don't know why there are so many mackie haters out there. Personally, I have investigated many of the negative claims and I think that most are the result of user misuse. Overheating? Seems to be associated with the original srm450 not the new v2 and even at that, only when lying on it's side as a floor monitor. When upright on the floor or on a pole, no problem. Breaking up at high volume? I haven't heard that myself. On the downside they are heavier than the JBL's by 8lbs, but they also have two technically, three handles so they are really a lot easier to carry. My sound man says they are easy to setup and adjust for a gig. Great Speaker, and with my sennheiser wireless mic, they help me give great performances.

    6 of 6 people found this review helpful.
    Was this review helpful?
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