Mixer / Yamaha / MX12/4

L1 Classic

L1 Model I

Yamaha MX12/4

Summary

Simplest thing that could possibly work.

Use the ¼ inch phone jack (Tip-Sleeve) outputs to

• The PS1 Power Stand (Classic) / Model I Channels 1 or 2 if you want to use the Presets and the R1 Remote Tone and Level Controls
  OR
  
• The PS1 Power Stand (Classic) / Model I Channels 3 or 4 if you prefer to leave Channels 1 or 2 open for other inputs. You will have to control Tone and relative Level (between the Channels) at your input source, as you do not have this control over Channels 3 and 4 in the PS1 Power Stand (Classic) / Model I or the R1 Remote.

or

You can use the XLR Balanced outputs. But you will probably want to use a Pad for each channel.

Outputs

¼ Inch with suitable output

for PS1 Powerstand Channel 1 or 2 inputs

The ¼ inch Console

• Page 6 in the Manual showing outputs. #7 highlighted is the Stereo Console out.
  

should work fine directly into the PS1 Power Stand (Classic) / Model I Channels 1/2/3/4. Note: this output is Tip-Ring-Sleeve (stereo output) so you will need a Tip-Ring-Sleeve to two Tip-Sleeve patch cord to maintain the separation of the left and right channels.

This Mixer also has Four group outputs (busses). Note that the 'sends' are pre-fader.

• Page 6 in the Manual showing outputs. #6 highlighted are the ¼ inch group outputs.
  

You can use TS (Tip Sleeve) unbalanced cables, or TRS (Tip Ring Sleeve) balanced cables, but since the ¼ inch phone connections at the Bose Classic and Model I Power Stand are unbalanced there is no particular benefit using balanced cables.

¼ Inch Tip-Sleeve (unbalanced) to ¼ Inch Tip-Sleeve (unbalanced)

This should work fine.

¼ Inch Tip-Ring-Sleeve (balanced) to ¼ Inch Tip-Sleeve (unbalanced)

This should work fine.

¼ Inch Tip-Ring-Sleeve (balanced) to ¼ Inch Tip-Ring-Sleeve (balanced)

This should also work, but likely no better than a simple ¼ Inch Tip-Sleeve to Tip-Sleeve cable. This is because the ¼ Inch input on the Bose System is Tip-Sleeve (unbalanced) anyway.

XLR Balanced +4

The nominal output of the XLR Balanced Outputs is too high for the XLR inputs on the PS1 Power Stand Channels 1 and 2. If you want to use balanced cables from the Mixer to Channels 1/2 on the L1 Classic or L1 Model I you may need to use a Pad to lower the signal level from the mixer.

{{#Click:Pad|Image:Pad.jpg|Attenuation Pad}}

• Page 6 in the Manual showing outputs. #5 highlighted are the XLR balanced outputs. These output +4 dBU nominal and are likely too hot for direct input to the XLR inputs on the PS1 Power Stand (Classic) / Model I. Use Pads.
  

Links:

• Yamaha MX12/4 Manual

More Notes

Reading the manual it is not clear (to me) if you can use the internal effects while routing outputs through the groups 1-4.

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