Speaker 15″ (38cm) 1600W


Sometimes soundcheck is the first song. Mackie SRT215 Professional Powered Loudspeakers help you dial in great sound in a hurry with time-saving features like the built-in SRT Mix Control™ 4-channel digital mixer with Bluetooth® and Advanced Impulse™ DSP tuning for consistent, accurate and reliable sound at every gig. Plus, its transparent system protection defends against power surges and loud pops—because everybody forgets a mute button now and then.



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.Mackie Advanced Impulse DSP


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?


The custom horn within each loudspeaker 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 possible.



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.

When operating at very high levels (ears beware), the processor-controlled system monitoring analyzes the audio signal and identifies the problem areas, then dynamically applies multi-band compression to those specific frequencies rather than lowering the overall output. This keeps your levels where you want them and maintains the sound quality you expect.



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.



A True Workhorse for Gigging Professionals

  • 1600W Class-D amplifier is designed for ultra-reliable, consistent performance
  • Custom high-efficiency transducers ensure maximum clarity and accuracy
  • Built-Like-A-Tank™ to conquer every gig while lightweight for easy loading
  • Frequency response: 42Hz – 20kHz
  • Max SPL: 133 dB


Advanced Impulse™ DSP – Proprietary Acoustic Tuning

  • Crystal clear sound across the entire dispersion zone means the whole room is the sweet spot
  • Precision crossover and transducer time-alignment ensures balanced and accurate sound


Custom Sym-X™ Horn

  • Allows for total efficiency from the HF transducer minimizing distortion and increasing output
  • Creates a perfectly symmetrical, flat response at the crossover point for exceptionally smooth midrange
  • The horn-loading frequency is set below the HF drivers’ LF capability allowing for maximum efficiency and optimal performance at the crossover point
  • Coverage: 90 ̊ horizontal x 60 ̊ vertical


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
  • Utilizing powerful multi-band compression, the amplifier can target specific frequency ranges to prevent the system from being overloaded rather than turn everything down at the
  • expense of overall output
  • 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


SRT Mix Control™ Built-in 4-Channel Digital Mixer with Bluetooth®

  • Dual independent channels that support mic, line, and instrument signals
  • Dedicated 1/8” stereo aux channel
  • Stream music from any Bluetooth® enabled device
  • High-contrast full color display for easy single-knob access to mixer and processing
  • Adjust channel levels and EQ
  • Application and venue specific voicing modes
  • Alignment delay – up to 100 feet
  • Save and recall up to 10 user presets
  • Screensaver plus dimmer and contrast control
  • System lock with 4-digit passcode
  • Front LED on, off and signal present modes


Complete Wireless Control via the SRT Connect™ App

  • The SRT Connect™ app gives you access to all adjustments and settings including EQ, levels, and presets


Wirelessly link SRT speakers together for music streaming applications plus complete control over both speakers

  • The latest Bluetooth technology allows up to 100 meters of range between linked speakers
  • Stereo or dual zone linking modes allows discrete control over the inputs and outputs of the entire system across two rooms or zones
  • Creates an incredibly clean setup in minutes


Versatile configuration options

  • Dual-angled cabinet design allows for use as a high-performance floor monitor
  • Dual angle pole-mount provides optimal coverage and minimal reflections in most venues; 7-degree downward tilt is perfect for when the speakers are on elevated stages
  • M10 flypoints for professional installation
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Speaker Type (Pro)

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Technical Specifications:

Acoustic Performance

Frequency Response (–10 dB): 42 Hz – 20 kHz
Frequency Response (–3 dB): 46 Hz – 20 kHz
Horizontal Coverage: 90°
Vertical Coverage: 60°
Maximum SPL Peak: 133 dB
Monitor Angle: 45°


Low Frequency: 15 in / 381 mm with ferrite
High Frequency: 1.4 in / 36 mm polymer compression driver

Power Amplifiers

System Power Amplification 
Rated Power: 1600 watts peak
Low Frequency Power Amplifier
Rated Power: 1400 watts peak
Rated THD: <1%
Cooling: Convection
Design: Class D
Class D
High Frequency Power Amplifier
Rated Power: 200 watts peak
Rated THD: <1%
Cooling: Convection
Design: Class D

System Processing

Voicing: 5 speaker modes
Subwoofer HPF: Off, SR18S, DRM18S, Var
Input EQ: 3-band
Delay: 0 – 100 ms


Low: ±12 dB @ 80 Hz
Mid: ±12 dB @ 2.5 kHz
High:  ±12 dB @ 5 k
HPF: 80 Hz – 150 Hz (Var)

Input / Output

Input Type: 2x Female XLR Balanced
1/4″ Balanced
1/8″ Stereo
Mic-Line Impedance: 20 kΩ balanced
Direct Out and Mix Out: Male XLR Balanced
Mix Out Impedance: 300 Ω balanced
Main Control: Rotating Knob

Bluetooth Information

Bluetooth Protocol: 4.2
Bluetooth Function: Audio Streaming and User Interface Control
Bluetooth Class: Class 1

Electronic Crossover

Crossover Type: 24 dB/ octave
Crossover Frequency: 2.0 kHz

Line Input Power

Detachable line cord: ~100 – 240 VAC, 50 – 60 Hz, 110W
~220 – 240 VAC, 50 – 60 Hz, 110W
AC Connector: 3-Pin IEC 250 VAC, 10 A male
Power Supply Type: Switchmode

Safety Features

Input Protection: Peak and RMS limiting, power supply and amplifier thermal protection
Display LEDs: Defeatable front power, speaker control
Status Info: Input and output levels, voicing mode, sub HPF, EQ and delay settings

Construction Features

Basic Design: Asymmetrical
Enclosure Material: Black Polypropylene
Enclosure Finish: Light Black Texture
Grille Material: 16-18 gauge perforated steel w/nylon net backing
Grille Finish: Powder-coated black
Handles: two on each side and one partial on top
Display LEDs
Front: Power / Signal
Rear:  Speaker Control
Operating Temperature: 0 – 40 °C 32
– 104 °F

Physical Properties (product)

Height:  28.8 in / 732 mm
Width:  17.6 in / 447 mm
Depth:  15.4 in / 391 mm
Weight:  37.1 lb / 16.8 kg



Product Datasheet

Product Manual

Connect Reference Guide