Purple Audio Moiyn 500 Series 8-Channel Summing Mixer


500 Series 8-Channel Summing Mixer to use exclusively with Purple's Sweet Ten 10-Slot 500 Series Rack

Manufacturer Description:

An all-discrete 8 channel summing amp. Only for the Purple Audio Sweet Ten.
The Moiyn makes the Sweet Ten into a 8×2 mixer.
The Moiyn only works in slot 9 of the Purple Audio Sweet Ten rack.
With the Moiyn installed into slot 9 of the Sweet Ten, slots 1 through 8 become input modules to the Moiyn. Because of the Moiyn’s differential summing input amplifiers, any standard module can be used in slot 1 through 8 with minimal loading, and without unbalancing their outputs. This means that even while you use the Moiyn to sum the outputs of the modules in slots 1 through 8, you can still take the slot 1 through 8 output XLRs to your DAW or tape machine.
Our custom hexifiliar output transformers provide two stereo transformer isolated outputs. One pair of outputs appears on the two output XLRs for slot 9. The Moiyn has internal jumpers to feed the second pair of outputs to slot 10. With the jumpers enabled, you can feed a Cans headphone amp in slot 10 automatically, without patching any cables in the back. Because of the Cans’ bridging transformer inputs, the pair of input XLRs on slot 10 can also be used as a second set of stereo outputs (with the input of the Cans multed to that output).
The inputs for slot 9 (XLR IN/OPT IN) serves as a stereo input to the Moiyn mix buss for cascading multiple mixers. As an example: take one Sweet Ten with a Moiyn to do your drum submix and cascade that into a second Sweet Ten with a Moiyn for your whole mix. That’s a fully discrete 16 channel summing mixer in 6 RU, and you can pick almost any combination of 500 modules as the channel modules.
The front panel of the Moiyn has two columns of eight illuminated push buttons, for left and right assign for each channel. Tricolor LEDs on either side of the slot 8 assigns show the mixbuss signal level. Below is a high quality 2-buss rotary master fader. The audio signal path of the Moiyn uses the same discrete opamps found in our other modules. The Moiyn uses two KDJ3 opamps and two KDJ4 opamps.


  • Discrete signal path (2 KDJ3 – Summing Amplifiers, 2 KDJ4 Output Amplifiers]
  • Differential Summing Amplifier
  • 15K drop on resisters
  • Stereo Balanced Inject
  • 8 Input Left/Right Assignable
  • Current consumption: 90mA
  • Discrete signal path
  • Over Current Resettable Fused (prevents any module problem from affecting your rack
  • ROHS – Lead Free

Year Condition
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