Mixer / Yamaha / MX12/4
Yamaha MX12/4
Contents
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:
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.