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XOXO Modular QUADBOOL Operation Manual & User Manual

Quad logic module for eurorack modular synthesizers
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QUADBOOL
Operation Manual & User Guide
v1.0.3

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Summary of Contents for XOXO Modular QUADBOOL

  • Page 1 QUADBOOL Operation Manual & User Guide v1.0.3...

  • Page 2: Table Of Contents

    QUADBOOL v1.0.3 Contents Overview ..........

  • Page 3: Overview

    Overview QUADBOOL is a quad logic module for Eurorack modular synthesizers. Each of its four sections takes two inputs and performs a logic operation on them to determine the state of its output (on or off). In addition to gates and triggers, the inputs can accept any Eurorack signals, including audio rate and control voltages.

  • Page 4: Technical Specifications

    You are safe if you use the power cable included with the module. If you use a cable from another source, however, be sure that the red stripe’s location matches the screen-printed markings on the QUADBOOL circuit board. If you have to remove the cable, hold the circuit board by its edges. Otherwise, the two boards can separate from each other.

  • Page 5: Using The Module

    Using the Module Each of the four quads of QUADBOOL performs a single function: it applies one of 6 logic operations to the A and B inputs, producing an output signal that is either according to the logic tables found in HIGH the Appendices.

  • Page 6: Selecting An Alternate Mode

    QUADBOOL v1.0.3 Selecting an Alternate Mode Alternate modes of operation are accessible by holding down a specific button when the module is being powered on. Each of the modes affords a kind of normalization between different inputs and outputs. Using these alternate modes is optional, but they afford the ability to make complex, exciting patterns.

  • Page 7: Locking The Buttons

    QUADBOOL v1.0.3 Locking the Buttons The four buttons can be “locked” to avoid accidentally changing their logic operations. When the buttons are locked, pressing any button will indicate the selected logic operation for that quad. You will not, however, be able to change to a different logic operation.

  • Page 8: Limited Warranty

    From the date of manufacture, this device is guaranteed for a period of 1 year against any manufacturing or material defects. Any such defects will be repaired or replaced at the discretion of XOXO Modular. This does not apply to damage caused by misuse or physical mistreatment.

  • Page 9: Appendices

    QUADBOOL v1.0.3 Appendices Appendix A: Logic Tables for Basic (Non-Inverted) Logic Operations XOR (exclusive OR)

  • Page 10: Appendix B: Logic Tables For Inverted Operations

    QUADBOOL v1.0.3 Appendix B: Logic Tables for Inverted Operations NAND (inverted AND) NOR (inverted OR) XNOR (inverted XOR)

  • Page 11: Appendix C: Diagram Of Logic Operations

    QUADBOOL v1.0.3 Appendix C: Diagram of Logic Operations NAND XNOR All Logic Operations Figure 1:...

  • Page 12: Appendix D: Complex Example

    QUADBOOL v1.0.3 Appendix D: Complex Example This example shows how complex and wild the outputs can become, given only a few input signals (and a bit of brain-melting). The diagram illustrates the following setup: 1. The “Drop A” alternate mode is selected.

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