intellijel Qx EOR/EOF Expander for Quadrax Eurorack Module (4 HP)

intellijel QX-3U Overview

Add additional functionality to your Quadrax function generator with the intellijel Qx, an expander module that adds an EOR (end of rise) and an EOF (end of fall) trigger/gate output to each of Quadrax's four channels, enabling Quadrax's envelopes, cycles, bursts, and LFOs to trigger external modules. The module includes a power ribbon cable.

Note: The Qx Expander requires the Quadrax module to function. The Quadrax module is sold separately.

QX Overview

• The Qx expander adds an EOR (End Of Rise) and an EOF (End Of Fall) output to each of Quadrax's four channels, enabling Quadrax's envelopes, cycles, bursts and LFOs to trigger external modules.
• The definition of EOR and EOF varies depending on which mode is assigned to the corresponding Quadrax channel.

EOR/EOF for AD Mode

• EOR: End of Rise: Goes high when the Attack portion of the envelope reaches its maximum value, and stays high until the envelope completes its decay phase.
• EOF: End of Fall: Goes low (0V) when the Attack portion of the envelope reaches its maximum value, and stays low until the envelope completes its decay cycle, at which point the EOF goes high.

EOR/EOF for AHR Mode

• EOR: End of Rise: Goes high when the Attack portion of the envelope reaches its maximum value, and stays high until the end of the release phase.
• EOF: End of Fall: Goes low (0V) at the start of the Release phase of the envelope (immediately after completing the Hold phase), and stays low until the envelope completes its release cycle, at which point the EOF goes high.

EOR/EOF for CYCLE Mode

• EOR: End of Rise: Goes high when the Attack half of the cycle reaches its maximum value, and stays high until the cycle completes its decay phase, at which point the EOR goes low (0V).
• EOF: End of Fall: Goes low (0V) when the Attack half of the cycle reaches its maximum value, and stays low until the cycle completes its decay phase, at which point the EOF goes high.

EOR/EOF for BURST Mode

• EOR: Goes high at the beginning of each individual pulse within a burst, and stays high for the first half of the pulse phase. This lets you trigger events in time with each individual pulse.
• EOF: Stays at 0V for the entire length of the pulse burst (set with the FALL knob on Quadrax), then goes high at the end of the overall burst, where it stays until the next burst is triggered. This lets you trigger events in time with the start and/or stop of the burst length.

EOR/EOF for LFO Mode

For the STANDARD LFO:

• EOR: The EOR output goes high half-way through the cycle, and remains high until dropping to 0V when the cycle resets.
• EOF: The EOF output is high for the first half of an LFO cycle, and low (0V) for the second half.

For the ALTERNATE LFO:

• EOR: The EOR output is high whenever the voltage moves in a negative direction.
• EOF: The EOF output is high whenever the voltage moves in a positive direction.

Eurorack Ready

• 4 HP Eurorack format module
• Maximum depth: 0.9" (22mm)
• Includes power ribbon cable with Eurorack power headers
• Power consumption: +12V: 8mA, -12V: 0mA