104hp x 7U 4 Zone CV Bus Case arrives ready to use. Just add modules, patch cables and inspiration. The powder coated metal construction offers excellent mechanical durability. The lid is removable and can be closed with the system fully patched. The sleek matte black finish was selected to match our line of Black & Gold modules, and it looks great with just about any module installed. This finish will show the story of your modular synth's travels over the years.

The Make Noise 4 Zone Power Bus Board is a new approach to accommodating the ever growing universe of Eurorack modules. The multi-zone solution is like having 4 independent bus boards in a convenient single bus board package. Each Zone features isolated +12 VDC and -12VDC supplies and a dedicated ground return path. The +5VDC supply is shared amongst all 4 zones.

The multiple section of the CV Bus was originally designed in 2013 for Alessandro Cortini's personal Make Noise system. It provides visual indication of level, rate and polarity for up to 4 control signals that will be shared throughout a patch. These 4 control signals are color coded and distributed across the center of the system allowing for quick, clean and intuitive patching. The distribution method is unlike the typical multiple since the control signals will appear beneath their possible destinations allowing for the use of shorter patch cables. The color coding and visual indication makes navigating complex patches easier and more intuitive. Typically, the CV Bus would be used to share the most important control signals in a patch such as your Master Clock.

This new version of the CV Bus also includes useful modular utilities:

The Voltage Math is found at the left end of the CV Bus. Like the similar circuit on the 0-Coast, it is a small collection of universally useful modular utilities. The two inputs are summed at the output, one at unity and one adjusted by the input attenu-verter. The attenuverted input is also normalled to a DC offset, for purposes of level shifting, voltage mirroring etc. The output strength and polarity is indicated by the Green and Red output LEDs.

A high quality Stereo Line Driver converts powerful modular synthesizer signal levels to the commonly used Line Level. There are mini-jack inputs for Left or Mono, and Right for Stereo sound, a single master volume control, as well as a stereo line output pair, and finally a TRS line/headphone out on a single jack. This output is capable of driving a long cable out to a PA System or a set of Headphones. It is AC coupled with a built-in limiting circuit (with visual indication) that prevents damage to ears and PA system when the patching gets experimental.