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| more options | Price (inc vat) | free delivery |
in stock | secure purchase |
|---|---|---|---|---|
| Mackie SRM 450 Speaker (each) | 374.50 | yes | In Stock | add to basket |
| Mackie SRM 450 Speaker (pair) | 749.00 | yes | In Stock | add to basket |
It doesn't matter if you're a DJ, church, or Iron Maiden tribute band, you need loudspeakers that won't crap out in the middle of a show, or distort when you turn them up past 3.
That's why we designed the SRM450 — the first and only portable active 2-way loudspeaker with onboard bi-amplification, active crossovers, time-correction and renowned Mackie sound quality. Thanks to countless hours of R&D — and one very-hard-to-please Greg Mackie — the SRM450 delivers real, accurate bass down to 55Hz; midrange that's free from ear-fatiguing harshness; and detailed treble out to 20kHz. Better still, the SRM450 offers astonishingly wide dispersion that lets your whole audience hear clearly, whether they're in the front, back, or way out on the sides of the room. Above all, the SRM450s crank! Without a hint of distortion, they effortlessly achieve sound pressure levels beyond the legions of look-alike portable loudspeakers on the the market today.
ULTRA-WIDE DISPERSION
Ever been to a show where the music sounds great in front, but craps out once you get to the back or sides of the room? We have, and that's why we gave the SRM450 a multi-cell horn thoat aperture. Sure, it's hard to say, but what it does is allow for much wider and more even dispersion of high and mid frequencies — so the wallflowers get the same great listening experience as those up front.
TIMING IS EVERYTHING
In most loudspeakers, the compression driver that reproduces mid and high-frequencies is located deep inside the enclosure, while the low-frequency driver is much closer to the front of the enclosure. With this setup, bass arrives at listeners' ears sooner than treble, muddying the sound. We remedied these unfortunate laws of physics with high-zoot electronics which allow precise alignment among the system components with zero signal degradation.
BETTER THAN YOUR AVERAGE BOX
Anyone with a factory can build a box and stick some speakers in it (and that's just what many do). But low-frequency transducers in square boxes can create resonances that reflect off the rear wall and pass through the woofer cone out of phase, and ready to mess up your sound. The SRM450 enclosure is an asymmetrical monocoque design with no parallel surfaces, causing mid and high frequency resonances to be reflected at angles into internal damping materials, instead of interfering with the woofer doing its thing.
DUAL FR SERIES AMPLIFIERS
Let's face it, 99 percent of the time compact PA speakers are cranked to the max. That's why the SRM450's beefy internal 400-watt amplifier section features dual FR series amps — one for each driver — both designed for extreme output. The amp section is built around a huge toroidial transformer, massive storage capacitors, and state-of-the-art output transistors, all adding up to superior sound, night after night.
SERVO FEEDBACK CONTROLLED LF TRANSDUCER FOR STUNNING BASS
Based on Mackie's award-winning HR824 studio monitor technology, the servo feedback damping electronic circuit within the SRM450 provides amazing results. The circuit "locks" the woofer in place with the positive and negative outputs of the amplifier in a way that no external amp and passive woofer can ever achieve. This creates a solid direct-coupling that delivers extremely deep bass from a small cabinet.
SUPERB FLOOR MONITOR
When the first warranty cards came back, we noticed that a lot of folks were raving about what a great floor monitor the SRM450 made. Okay, it's super accurate. And it's designed to be tilted. But there had to be more reasons than that.
PATTERN CONTROL: WHY THE SRM450 MAKES SUCH A SUPERB FLOOR MONITOR
A good floor monitor plays loudly without generating feedback through vocal microphones. A poor floor monitor, on the other hand, will generate feedback just about the time you turn it up to a useable level. Floor monitor feedback is often caused by uneven frequency response and dispersion; some frequencies arrive at the microphone much louder than others. These "spikes" are what trigger feedback as the floor monitor volume is increased. The SRM450 has incredibly smooth, spike-free response and dispersion over a wide range of treble frequencies. So you can increase its volume without boosting those nasty, feedback-inducing spikes. No passive speaker or specialized floor wedge in this class of speaker can even come close.
- 2-way bi-amplified, optimized active system
- Built-in precision 24dB/oct. Linkwitz-Riley electronic crossover
- High-output precision titanium compression driver
- 300mm long-throw frequency transducer
- Studio-quality maximum dispersion horn design
- High SPL Output/Low Distortion
- Electronic Time Correction, Phase Alignment, & Equalization
- Servo Feedback controlled woofer
- Tough, impact-resistant, lightweight polypropylene enclosure
| System | |
| Input Type | Balanced Differential |
| Input Impedance | Line: 20k ohms |
| Input Protection | RFI and level protected |
| Sensitivity | Line: +4 dBu (center detent) Mic: -36 dBu |
| Maximum Input Level | Line: +22 dBu |
| Low-Cut Frequency | 75Hz, Second-order filter |
| Acoustic Contour Equalization | Peaking: +3 dB @ 100Hz +3 dB @ 12kHz |
| Enclosure Alignment | Sixth-Order |
| Over-Excursion Protection | Second-Order High-Pass Filter |
| Thermal Protection | Amplifier shutdown, auto reset |
| Low-Line Voltage Shut Down | 60% Nominal line |
| Frequency Range (-10 dB) | 45Hz - 20KHz |
| Frequency Response (±3 dB) | 55Hz - 18kHz |
| Maximum Peak SPL @ 1m | 127 dB |
| Low-Freq Crossover | 24 dB/octave, time offset corrected |
| High-Freq Crossover | 24 dB/octave |
| Crossover Frequency | 1.6kHz |
| Driver Protection | Independent LF and HF compressors |
| Low-Freq Roll-Off | Dynamic-signal level dependent |
| Accessory Interface | ±15V DC, normalized signal I/O |
| Operating 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 - 3kHz |
| Hi-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") H |
| Horn 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 Feedback |
| High-frequency amplifier: | |
| Rated Power | 100 watts @ High-Frequency Driver Impedance |
| Rated THD | < 0.1% |
| Cooling | Convection Extrusion |
| Design | Conventional Class AB |
| Line Input Power | |
| US | 120V, 60Hz |
| Europe | 230V, 50Hz |
| Japan | 100V, 50/60Hz |
| Physical Properties | |
| Height | 660mm (26") |
| Width | 390mm (15.4") |
| Depth | 376mm (14.8") |
| Weight | 23.2kg (51 lbs.) |
| Enclosure Geometry | Asymmetrical Trapezoidal |
| Mounting Methods | Integrated mounting points, M10 |
| Since we're always striving to make our stuff better by incorporating new and improved materials, components and manufacturing methods, we reserve the right to change these specifications at any time without notice. | |
- SRM450
- SRM-450
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