Mackie Pro FX4 to S1 Pro System

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S1 Pro  This information is applicable to the S1 Pro system

Mackie ProFX4 v2

Introduction

Here's a link to the Mackie ProFX4 v2 Owners Manual.

The MAIN outputs from this mixer are balanced, 1/4 inch (6mm) Tip-Ring-Sleeve connections. The outputs are ¼ inch jack Tip-Ring-Sleeve and the inputs on the Bose system are ¼ inch jack Tip-Ring-Sleeve so use two cables like this.

1/4" Male TRS to 1/4" Male TRS  Cable.

1/4" TRS Balanced Patch Cable (audiopile.net)


You've got a couple of choices.

Two cable connection

On the Mackie mixer

  1. Connect channels 1, 2, 3/4 using left and right side as required
  2. Connect left and right Outputs to S1 Pro channels 1 and 2
  3. Use 1/4 inch Tip-Ring-Sleeve cables.


Single cable connection

On the Mackie mixer

  1. Connect channels 1, 2
  2. Connect channel 3 input using only left side

Issues

  1. You won't be able to use channel 4
  2. This will not work if you use the RCA inputs for tape in
  3. Connect left output to the S1 Pro (either channel 1 or 2)
  4. Use a 1/4 inch Tip-Ring-Sleeve cable

S1 Pro System Settings

On the S1 Pro System, for each channel you are connecting to the mixer use these settings while you are setting up.

S1 Pro Settings for mixer.jpg

  • Reverb OFF
  • Bass at 12:00 o'clock
  • Treble at 12:00 o'clock
  • ToneMatch switch OFF

You can adjust the Reverb, Bass, and Treble after you get your basic sound working.

Gain Staging

Using a Bose device as the source

When connecting a ToneMatch Mixer[1] or an S1 Pro System Line Out to an S1 Pro System channel 1 or channel 2

Set the volume control to 10:00 o'clock

The signal strength from a ToneMatch Mixer[1] or an S1 Pro System Line Out is sufficient to achieve the maximum usable volume from the S1 Pro System
Control the overall volume from the ToneMatch Mixer[1] or the first S1 Pro System

Using a third-party source (not a Bose device as the source)

For each channel you are using on the S1 Pro System

  1. Turn the channel volume off
  2. Connect your sound source
  3. Adjust the volume of the source device output to the reference or nominal output level.
    • On analog consoles this may be marked as unity or 0 dB.
    • On digital consoles this may be marked as -18 dBFS[2][3]. The exact value (-18 dBFS to -20 dBFS) may vary depending your location[4].
    • Refer to the manual for the source device for details.
    • If the source device does not have metering or indicators, set the output as high as you can without hearing distortion or seeing red indicator lights.
  4. While playing/singing as loud as you will during your performance, bring up the channel volume until you see solid green on the channel indicator light. Occasional flickers of red are okay. If you see solid red or you hear distortion, turn down the volume.


Stereo with two S1 Pro Systems

If you have two S1 Pro systems, connect one to each of the MAIN OUTPUTS (Left and Right)


Notes

The Mackie ProFX4 v2 mixer is stereo. The S1 Pro System is mono. To get the full output of the Mackie mixer to the S1 Pro, we need to connect both Left and Right outputs from the Mackie to the S1 Pro.