Boredbrain Music Mimix: A Versatile Dual Multiple & Unity Mixer for Eurorack Systems

The Boredbrain Music Mimix is a versatile dual multiple and unity mixer module that brings a new level of functionality to your eurorack system. With its advanced features and high-quality design, the Mimix expands the creative possibilities of any setup.

One of the key features of the Mimix is its two buffered multiples, labeled A and B. These multiples allow for the copying of signals, whether audio or CV, without any loss or interaction between them. The active circuitry used in the module ensures that the source signal remains unaltered, making it perfect for copying voltages scaled to 1V/oct for precise pitch control of oscillators and sound sources.

The Mimix goes beyond simple signal duplication with its augmented copies. Each multiple section has a fourth output that provides an augmented copy of the source signal. Multiple A offers an inverted copy (A INV), where the polarity is flipped. This is particularly useful for patching opposing modulation signals. On the other hand, Multiple B offers a rectified copy (B RECT), providing a full-wave rectified copy of the source signal that is always positive. This is great for controlling parameters that require a positive modulation signal, such as VCAs, and even for distorting audio signals.

In addition to the multiple sections, the Mimix also features a 4-input unity summing mixer. This summing circuit combines all four inputs at unity gain, allowing you to create unique modulations or mix multiple audio signals together. The first two inputs, [A] and [B], are conveniently normalled to the inputs of the two multiples by default, but you can easily replace them by plugging in other signals. Inputs C and D are available for additional external sources that can be added to the mix.

To assist in visualizing the strengths and polarities of the signals, each section of the Mimix is equipped with bipolar LED signal indicators. These indicators provide clear and immediate feedback on the characteristics of the signals being processed, enhancing the overall user experience.

The Mimix's active circuitry, high input impedance, precision components, and augmented copies make it a powerful utility module that will greatly enhance your eurorack system. Whether you need to duplicate signals, experiment with inverted or rectified copies, or create unique modulations and audio mixes, the Mimix delivers exceptional performance and versatility.

In conclusion, the Boredbrain Music Mimix is a must-have module for any eurorack enthusiast. Its innovative design, reliable performance, and extensive features make it a valuable utility in signal copying, combining, and processing. Whether you are a seasoned musician or an aspiring sound designer, the Mimix will undoubtedly expand the creative possibilities of your eurorack system.

Example Usage

Novice-level usage example:

Let's say you have a Eurorack system with two oscillators, and you want to create some interesting modulations by combining their signals. You can use the Boredbrain Music Mimix module to achieve this.

First, patch the output of oscillator 1 into input A of the Mimix module. Then, patch the output of oscillator 2 into input B. By default, these two inputs are normalled to the two buffered multiples of the Mimix module.

Now, let's say you want to experiment with some opposing modulation signals. Patch the inverted copy of oscillator 1's signal from output A INV of Multiple A into the filter cutoff input of a VCF module. This will create an interesting modulation effect as the two oscillators modulate the filter cutoff in opposite directions.

Next, let's use the augmented copy of oscillator 2's signal. Patch the rectified copy from output B RECT of Multiple B into the control input of a VCA module. This will create dynamic control over the VCA's amplitude based on the positive voltage of oscillator 2's signal.

Finally, let's mix the modulated signals together using the unity mixer section of the Mimix module. Patch the SUM output of the mixer into the audio input of your output module. Now you will hear both the opposing modulation and the dynamically controlled amplitude in your final audio output.

With just a few patch cables and the Boredbrain Music Mimix module, you can easily experiment and create unique sounds by combining and modulating different signals in your Eurorack system. Have fun exploring the possibilities!

One intermediate-level usage example of the Boredbrain Music Mimix module is combining multiple LFO signals to create complex modulation patterns.

Let's say we have two LFO modules generating rhythmic modulation signals. We can connect the output of the first LFO to input A of the Mimix module and the output of the second LFO to input B.

The first two inputs of the Mimix module are normally connected to the outputs of its multiple sections, but we can break this normalization by patching other signals into inputs A and B. This allows us to use the Mimix module as a mixer for more than just its multiples.

We can then connect the SUM output of the Mimix module to a module that responds to modulation, such as a VCA or filter cutoff frequency. This will result in a complex modulation pattern as the two LFO signals are combined in the Mimix module and sent to the destination module.

By adjusting the levels of the LFO signals at inputs A and B and experimenting with the augmented copies from the multiples, we can create interesting and dynamic modulation patterns that evolve over time. The LED indicators on the Mimix module will help us visualize the strength and polarity of the mixed modulation signal at the SUM output.

This example demonstrates how the Mimix module not only provides convenient signal duplication and mixing capabilities but also allows for creative exploration and manipulation of modulation signals in a eurorack system.

Further Thoughts

For those looking to add some experimental flair to their eurorack setups, the Boredbrain Music Mimix module offers a versatile solution. In addition to its primary function as a buffered multiple, Mimix incorporates an intriguing feature called augmentation, as well as a unity mixer for combining signals.

In a patch where opposing modulation signals are desired, the Mimix module shines. By utilizing Multiple A's inverted copy labeled A INV, users can easily achieve this effect. For instance, let's say we have an LFO generating a positive modulation voltage, and we want to simultaneously introduce a negative modulation voltage into the mix. By routing the LFO to Multiple A and patching the A INV output to the desired destination, we achieve precisely this effect.

Another exciting application of the Mimix module lies in manipulating audio signals. Multiple B's rectified copy, labeled B RECT, opens up a world of creative possibilities. For example, suppose we have a bassline audio signal that we want to add some distortion and extra character to. By feeding the bassline into Multiple B and routing the B RECT output to a VCA or a dedicated distortion module, we can achieve unique and captivating audio transformations.

Of course, the Mimix module is not only about experimentation; it also offers practical utility. The unity mixer section allows users to combine up to four input signals at unity gain. By default, inputs A and B are internally connected to the multiples, enabling effortless integration with the rest of your modular system. However, these default connections can be overridden by patching external signals directly into inputs A and B, thereby expanding the mixing capabilities. Add sources C and D into the mix, and you have an incredibly flexible mixer for audio or CV signals.

Whether you need precise signal copying, innovative modulation techniques, or advanced mixing capabilities, the Boredbrain Music Mimix is a highly versatile module that should find a place in any eurorack system. Its buffered multiples, augmented copies, and unity mixer make it an excellent choice for both seasoned modular enthusiasts and newcomers embarking on sonic explorations.