Audio Fix / setup help
PreSonus Quantum ES 2: center a known misplaced mono-input pan in the monitor mix
PreSonus Quantum ES 2 — center a known misplaced mono-input pan in the monitor mix. Confirm the actual setup and observed response before reporting an outcome.
Manufacturer-documented Reviewed 2026-11-09 · Revision 1
Follow these checks in Audio Fix →When this guide applies
One mono input audible to one side because its own pan is offset; both output channels otherwise verified.
Connection scope: Analog line / headphone audio. Symptom: Sound plays from only one side.
This is a documented check, not a diagnosis of your equipment. The model name does not confirm the selected input, mode, software or connected partner.
If your exact model or a required setting is unknown, use the “I don’t know” branch below. Do not apply a similarly named model’s instructions.
Checks and possible outcomes
Start at step-0. Follow the link that matches what you actually observe. Alternative branches are not a single sequence of actions.
step-0
Do both output channels work with other known material?
A completely dead physical output is outside a mono-pan correction.
Look for: Confirm the stated setup or observation. Unknown stops safely.
- If Yes / confirmed → Is the affected input mono and its own Pan visibly off-centre?
- If No / cannot confirm → Stop and retain the actual observations
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented PreSonus Quantum ES 2 official manual ↗PDF pages 12 — Mix Controls Pan sets a signal position in the stereo mix and also applies to Sends; stereo-link and channel mute are separate controls.Known mono-input pan setting, not a dead output or stereo-pair unlink. · Source checked 2026-11-09
step-1
Is the affected input mono and its own Pan visibly off-centre?
A deliberate stereo pair or unknown balance is a different setup.
Look for: Confirm the stated setup or observation. Unknown stops safely.
- If Yes / confirmed → May that pan change in the main mix and any affected sends?
- If No / cannot confirm → Stop and retain the actual observations
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented PreSonus Quantum ES 2 official manual ↗PDF pages 12 — Mix Controls Pan sets a signal position in the stereo mix and also applies to Sends; stereo-link and channel mute are separate controls.Known mono-input pan setting, not a dead output or stereo-pair unlink. · Source checked 2026-11-09
step-2
May that pan change in the main mix and any affected sends?
Retain the original position and pause a live session before changing it.
Look for: Confirm the stated setup or observation. Unknown stops safely.
- If Yes / confirmed → Set only that mono channel Pan to the centre in Universal Control
- If No / cannot confirm → Stop and retain the actual observations
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented PreSonus Quantum ES 2 official manual ↗PDF pages 12 — Mix Controls Pan sets a signal position in the stereo mix and also applies to Sends; stereo-link and channel mute are separate controls.Known mono-input pan setting, not a dead output or stereo-pair unlink. · Source checked 2026-11-09
step-3
Set only that mono channel Pan to the centre in Universal Control
Do not change stereo link, 48 V, output assignment or another channel.
Look for: Perform only the stated operation and confirm whether it was possible.
- If Yes / confirmed → Is that mono signal now heard from the intended centre image?
- If No / cannot confirm → Stop and retain the actual observations
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented PreSonus Quantum ES 2 official manual ↗PDF pages 12 — Mix Controls Pan sets a signal position in the stereo mix and also applies to Sends; stereo-link and channel mute are separate controls.Known mono-input pan setting, not a dead output or stereo-pair unlink. · Source checked 2026-11-09
step-4
Is that mono signal now heard from the intended centre image?
A centered control does not establish the room or speaker calibration.
Look for: Confirm the stated setup or observation. Unknown stops safely.
- If Yes / confirmed → Checks completed — report what happened
- If No / cannot confirm → Stop and retain the actual observations
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented PreSonus Quantum ES 2 official manual ↗PDF pages 12 — Mix Controls Pan sets a signal position in the stereo mix and also applies to Sends; stereo-link and channel mute are separate controls.Known mono-input pan setting, not a dead output or stereo-pair unlink. · Source checked 2026-11-09
Possible result
Checks completed — report what happened
Completion is not an automatic solved result. Report your actual outcome; no Audio Review physical test or measured repair is claimed.
steps completed
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Stop and retain the actual observations
A required fact or response was not confirmed. Consult the exact product/partner documentation or official support. Do not escalate to a reset, update installation, internal repair or unsafe wiring change.
next support
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
A required fact is unknown
Confirm the actual model, source, partner capability and current state before continuing. Do not guess a menu or interrupt a live session/update.
insufficient data
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.