1.) Power Connection - This is a standard 3-prong IEC power connector

2.) Power Switch - press the top of this rocker switch inwards to turn on the subwoofer

3.) Fan Vents - Don not obstruct the ventilation openings of the subwoofer. Fans move air over the heat sinks to cool down the power transistors

4.) XLR Inputs - Balanced XLR female connectors are provided for the left and right inputs

5.) Normal / Invert Switch (Polarity) - This switch reverses the polarity of the signal going into the subwoofer amplifier by 180°. It has no effect on the signal at the outputs

6.) High pass Outputs - Typically, full range loudspeakers are connected to the high pass outputs to "split" the work with the DLM12S subwoofer

7.) Full Range Outputs - Connect the full range outputs to the inputs of another powered subwoofer,powered loudspeakers or to an amplifier powering passive loudspeakers

8.) Stereo / Mono switch (Full Range) - This switch allows you t o choose whether the A and B inputs are sent out separately or as a mono sum of both inputs

9.) OLED Display - is one of the most vital features of the DLM12S subwoofer

10.) VOL Button - adjusts the  overall signal level at the inputs to the built-in amplifiers

11.) XVR Button - allows you to choose from a list of preset crossover frequencies for Mackie loudspeakers

12.) Front LED on / Limit / Off - pressing the VOL and VXR buttons sinultaneously gives you the option to turn the front LED on,off or limit

13.) DLY Button - delay "DELAYS" the audio signal for a set period of time

14.) MEM Button - settings for DLM subwoofers may be saved to memory and recalled at a later time by utilizing the memory button

15.) Control Lock - The DLM12S interface may be locked by pressing the DLY and MEM buttons simultaneously

16.)  + and - Buttons - These buttons  work in conjunction with the buttons mentioned previously: VOL,XVR,DLY and MEM

17.) 2000W / 2W switch - At Mackie we are always striving to push the envelope , dreaming up new awesome products to design in order to expand the boundaries of the pro audio world.

Specifications:

Input / Output