Studiomaster C3X Mixer / Effects Rack


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Compact rackmount mixer with 12 inputs and built in dsp reverb / delay. The C3X is ideally suited for use with multiple stereo line-level sources such as synths or any kind of playback

There are four mono mic inputs on combo jack / XLR sockets and eight stereo line inputs on jack sockets. Mic inputs 1 & 2 are on the front pane. All mic inputs have phantom power, switchanble in pairs (1 + 2, 3 + 4). Inputs 9, 10, 11 & 12 have phono & jack sockets

Input 1 has three-band EQ plus monitor & dsp effects sends so is ideally suited as a mic input but there’s no dedicated insert for that channel. Instead there’s a master output inser on jack sockets

The C3X isn’t a high-end unit but it sounds fine, works efficiently and will be a good problem-solver for many situations. It is built in a sturdy steel case and has a built-in power supply with standard IEC power socket. UK or Euro power cable supplied on request

In very good used condition with minor case marks but no other signs of use

12-input mixer
  • 4 mic inputs on XLR / jack combo sockets
  • switchable pahntom power on mic inputs
  • 8 stereo line inputs
  • 2- or 3-band EQ on inputs
  • built-in DSP revereb / delay effects
  • line level main output on XLRs
  • main output inserts on jack sockets
  • aux and mono monitor outputs on jack socket
  • DSP on/off footswitch socket
  • IEC power socket
  • UK or Euro power cable supplied on request
Standard rackmount unit

Product page Speakerplans forum page
In very good used condition with minor case marks. Otherwise it looks unused. Tested & working. IEC power cable supplied on request. Photos show the unit for sale