Trellis Manual

Trellis is a 6 stereo input, 3 stereo output matrix mixer.  Trellis can enable interesting audio routing between sound sources and sound processors in your eurorack system with manual and voltage control over the level of signal sent from each input to each output.

power

Trellis requires a standard eurorack power supply with the ability to provide +12V and -12V.  Trellis uses 98mA of current on the +12V rail and 98mA of current on the -12V rail.  It is recommended that you select a power supply with 15-20% more current available than the sum of all your modules' requirements.

To power your Trellis module, turn off your case.  Plug the included eurorack ribbon power cable into your case power distribution board, ensuring that the red line on the ribbon cable is aligned with the -12V marker on the case power board.  The other end of the ribbon cable should be plugged into Trellis with the red line aligned with the -12V market on the back of Trellis' board as shown in this image.  Please make sure to screw Trellis and all other modules into your case before powering the case on - if a module or other unsecured  object fall into your case and touch the power system, it can cause permanent damage to modules like Trellis and others.

TRELLIS SIGNAL ROUTING

(1) Signal Inputs

  • stereo audio input
  • if nothing is patched into R input, the L input signal is copied over for mono operation

(2) CV Input

  • each of the 18 points of the matrix contains a stereo VCA that can be controlled by an external signal

(3) Gain Knob

  • each of the 18 points of the matrix has a gain knob to set maximum level to send to each output

(4) Signal Outputs

  • stereo audio output
  • if nothing is patched into L output, the R output has a mono mix of both L and R mix signals

TRELLIS TECHNICAL DETAILS

Input and Output Voltages

  • The inputs on Trellis can handle voltages between -5V  and +5V before clipping.  Outside this range, the inputs will soft clip up to -10V and +10V where signals will hard clip and distort
  • Note that unity gain mixing of hot signals turned all the way up on their respective gain knobs will collectively reach levels that may clip the output stage of the mixer. To avoid clipping you may need to turn your levels down
  • Trellis is primarily designed to mix audio rate signals between 20hz-20khz.  Low frequency signals will pass into the mixer, but Trellis is not designed for accurate mixing of sub audio rate signals so results may vary
  • The control voltage inputs on Trellis are designed for signals between 0V and 5V - voltages outside this range will be clipped at 0V if below 0V and 5V if above 5V.  These inputs can utilize signals from sub audio rate through audio rate 
  • The three pairs of outputs on Trellis provide a unity gain mix of all input signals at the level you set on the trimmer knobs and control with external CV signals.  If nothing is patched into the left output, it's corresponding right output will have a unity gain mono mix of both left and right mix signals

Power

  • 98mA on +12V, 98mA on -12V, 0mA on +5V

Physical Dimensions

  • Trellis requires 22hp of horizontal space in your eurorack case and is 25mm deep measured from the back of the front panel, including the connector on the power cable

Limited Warranty

  • Acid Rain Technology warrants this product to be free of defects in materials or construction for a period of one year from the date of purchase (proof of purchase/invoice required)
  • This warranty does not apply to normal wear and tear, including art/panel wear, or any products that have been modified, abused, or misused. Our warranty is limited to manufacturing defects
  • Warranty repairs are provided free of charge, and other repairs we will try to provide at an affordable rate. 
  •  Customers are responsible for shipping units to Acid Rain Technology for repair.  Please contact us on our web contact form if you think one of your Acid Rain products needs repair