Mackie - SR18S

A loudspeaker upgrade that makes sense

If you've been debating an upgrade to your sound system, the time has come to ditch those dusty old speakers from the 80's. With the SRT Series, experiencing incredible sound, cutting-edge performance, and reliability is a no-brainer.

• The ultimate workhorse loudspeaker
• Industry-leading 1600W Class-D amplifier with transparent system limiting and protection
• Superior sound with Advanced Impulse™ DSP tuning
• Custom transducers and SymX™ Horn for unmatched clarity and accuracy
• SRT Mix Control™ built-in 4-channel digital mixer with Bluetooth®
• Complete wireless control via the SRT Connect™ app

Power
1600W Class-D Amplifiers
SRT Series Loudspeakers equipped with our most rock-solid amplifier platform ever for better performance across the board than any other loudspeaker in its class. Ultra-efficient power combined with sophisticated protection and monitoring make SRT the ultimate workhorse.

tuning
Advanced Impulse™ DSP - Proprietary Acoustic Tuning
Years of audio nerds tweaking settings and lugging around test equipment has paid off, and you get to reap the benefits. With our Advanced Impulse™ DSP, muddy midrange, harsh highs, and sloppy bass simply do not exist with these speakers. Not only does SRT sound incredible directly in front of them on-axis, they sound just as good all the way to the edge of their coverage unlike other typical loudspeakers.

fidelity
Custom Sym-X™ Horn
The custom designed Sym-X™ horn combined with a custom high-frequency driver provides an almost razor flat response (within +/- .5 dB), and that carries through the crossover point to the woofer for midrange that sounds clear and accurate even at high SPL.

mix
SRT Mix Control™ – 4-Channel Digital Mixer with Bluetooth
Equipped with a full-color display, settings and adjustments are clear and easy to see. The main window displays input and output levels. Easily dive into channel and system settings for current voicing, EQ, alignment delay settings, and more all at a glance. Want access to quick adjustments on the fly? Download the SRT Connect™ app for complete wireless control from your phone. Bluetooth connectivity means you can stream to a pair of SRT Series speakers for an extremely quick and easy music playback rig.

Optimized
Application Based Voicing Modes
Adapting your system to your specific needs and where it is all happening is crucial to achieving the best sound possible. Within SRT Mix Control, you get unique voicing modes that will each apply a preset response curve making the speaker optimized for that use. This offers even deeper optimization which can all be controlled directly on the speaker or via the SRT Connect app.

connect
Wireless Linking
Want to get some music playing through your system quick? How about on-the-fly adjustments to your pair of loudspeakers? With SRT, it's a piece of cake. Just pair your two SRT Series speakers together, then control and stream music to them right from your phone. They can act like a stereo L/R or be split up as a dual zone system with seperate level controls.

Safe
Transparent System Protection and Monitoring
SRT Series Loudspeakers utilize a sophisticated combination of input limiting, multi-band compression, temperature monitoring, and signal analysis to keep the amplifier and transducers safe.

ADVANCED IMPULSE™ DSP MODULE

What does it do for me?
Mackie’s filtering technology is not your typical speaker processing. The goal of our Advanced Impulse™ DSP is to remove all the anomalies that loudspeakers and horns contribute to a signal, from “honkiness” or “squelch” to "mushy" low end, effectively making the drivers "invisible" and output nothing but perfect, clean sound. By more intelligently (and more thoroughly) employing the benefits of FIR filtering, Advanced Impulse DSP eliminates undesired acoustic anomalies across the entire dispersion zone (horizontal and vertical), as well as frequency range and time domain.

How it's done
The main way this is accomplished is by measuring the negative frequency response and time domain impacts that each transducer and horn in the system introduces – on axis as well as off – and reversing/correcting for those anomalies before the signal hits the speaker. The result is the output from the speaker is fully corrected for flat, clear, time-aligned, and smooth sound throughout the entire time, space, and response domains. Want to learn more? Check out the full rundown from a Mackie Acoustic Engineer!

SYM-X™ HORN
The custom horn within each SRT Series speaker was designed with the goal to bring out the very best from the HF transducer while maintaining the flattest response possible at the crossover point. Surprise surprise... we nailed it. The special design of this horn allows the compression driver to operate at near maximum efficiency. This means it gets louder and sounds better with less effort. The transition between the LF and HF is a symmetrical, flat response which is what helps make the incredibly smooth midrange in SRT Series speakers possible.

TRANSPARENT SYSTEM PROTECTION
Other loudspeakers feature some sort of protection and limiting to help them squeeze a dB or two out of the speaker. This is almost always at the expense of sound quality and is commonly experienced as diminished bass response and the "pumping" sound of the internal limiter having a bad day.

WIRELESS
CONTROL & STREAMING
With the SRT Connect™ app available for iOS and Android® devices, you get complete control over everything and then some for up to 2 speakers simultaneously. Quickly access levels, EQ, meters, and configuration. Plus, you can save memory presets to streamline setup at your next gig.

When you link to another SRT Series loudspeaker, you get control over the entire system in the app, all in one view. No additional pairing or swapping back and forth on your device is required.

For an incredibly simple music playback system, you can stream music directly from any Bluetooth enabled device.

18" 1600W Professional Powered Subwoofer

• A True Workhorse for Gigging Professionals
  • 1600W Class-D amplifier is designed for ultra-reliable, consistent performance
  • Custom high-efficiency transducer ensures maximum punch
  • Increases efficiency of your full-range loudspeakers by taking care of the low end for the entire system
  • Built-Like-A-Tank™ to conquer every gig while lightweight for easy loading
  • Frequency response: 33Hz - 200Hz
  • Max SPL: 133 dB
• Custom Voicing Presets
  • Flat – Natural balance between deep bass and overall output
  • Deep – Emphasizes ultra-low frequencies. Great for dance, rap, and electronic music
  • Punch – Prioritizes highest possible output level. Great for bands and rock music
• Optimize for Your System
  • Variable crossover frequency
  • Polarity invert switch
  • Defeatable front LED
  • Stereo or mono-summing for single or dual subwoofer deployment
  • Variable level control (-6dBU to +6dBU)
• Transparent System Limiting and Protection
  • Dedicated processing module monitors and protects the amplifier in real time
  • Sound quality and tonal balance is maintained even under heavy limiting
  • Input limiting keeps your source signal in check so if you’re sending audio that’s a bit too hot, the speaker will cool it down
  • Universal Power Supply (100-240VAC) with Power Factor Correction for stable operation even with unstable AC power
• Versatile I/O
  • Stereo XLR inputs
  • Stereo full-range XLR outputs
  • Stereo high-pass XLR outputs
• Versatile configuration options
  • Integrated pole cup
• Weight: 74.5 lb / 33.8 kg
• Dimensions: 23.3 x 23.0 x 27.0 in / 592 x 584 x 686 mm