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Pots & Pans (4ch Stereo Panning Mixer)

from $30.00 
DESCRIPTION

The Pots & Pans packs a lot of stereo mixing power into a 2 column module. Great for using as a line output module!

DETAILS

  • 4 inputs w/ attenuation*

  • *Each input has a jumper on the back that can be set to x1 or x2 gain

  • Attenuated channels have pan controls.

  • Attenuated channels have an On/Cut/Invert switch

  • 2 Aux Inputs (dedicated Left and Right Mix bus summing nodes, allow for simple daisy chaining of Pots & Pans modules)

  • Two 1/4” AC Coupled Main outputs w/ user adjustable level trimmers on the back of the module. (Production modules set for 1Vp-p, Line Level)

  • Two DC Coupled Banana Main Outputs (Perfect for submixing, or chaining to other mixers

  • PCB Size: 6” x 2”

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Assembled Modules are built to order, please be patient when ordering. Use the contact page if you have any questions or requirements.

Dual Positive Slopes DIY Info:
LGE142 Main PCB Bill of Materials (v1.2)
LGE142 Main PCB Layout w/ Designators (v1.2)
LGE142C I/O Board Bill of Materials
LGE142C I/O Board Schematic (Wiring Diagram)
LGE142C I/O Board Layout w/ Designators
Mechanical Parts BOM generally required for building Low-Gain Electronics Modules

Build notes:
Because this module is set up to offer x2 gain, signal levels need to be taken into consideration… If you’re mixing signals that are +/-5V (traditional Serge is +/-2.5V), a gain of 2 will put your signal at +/-10V. This isn’t a big deal unless you’re using
a basic op-amp that isn’t able to operate at rail to rail operation. You will see your signal start to “clip” or “Saturate” at level extremes that are at or above +/-9-10V. This is just the nature of some op-amps like say TL072. So take this into consideration
when selecting your op-amps, If you’re not using the x2 gain feature or you like the sound of the saturation at the rails, then you don’t have to worry and using TL0X2’s should be just fine! But if you’re a fan of maximum headroom, consider
using a rail to rail operational amplifier.

Module Calibration / Setup:
Feed any basic waveform from an oscillator (Sine for spotting clipping issues, square for testing oscillation/response tests) into one of the four channels. Turn gain all the way up and pan hard left or right depending on which output you’re calibrating. Monitor the 1/4” output on an oscilloscope and adjust output trimmer on back of PCB for 1Vp-p (line level) or to your preferred output level. Repeat process for the opposite side and remember to rotate pan control to the side you are calibrating. If you don’t have access to an oscilloscope, adjust by ear using your interface or preferred monitoring setup to a level that you are happy with. It’s personal preference. for more fine tuning of AC coupled output level (1/4” jacks), use multi-turn pots instead of single turn.

** 4U Modular is a term used for the format most commonly known as “Serge Format” or “Loudest Warning Format”. Out of respect for the ever growing format, 4U Modular is the easiest way to refer to it. More Specifically it refers to the panel height and mounting hole style. 4U Modular will patch up just fine with other 4U "Serge" formats such as "Random Source", but it will not mount in RS boats or Buchla Boats (or power off Buchla power for that matter). An info page about this will be added to the website soon to make this a lot more easy to understand.

Details:

  • PCB Size: 6” x 2”

  • Current Draw: TBD