Audio Fix / setup help

Focusrite Scarlett Solo 4th Gen: enable phantom only for a microphone documented to require it

Focusrite Scarlett Solo 4th Gen: enable phantom only for a microphone documented to require it. Check prerequisites and the actual response before reporting an outcome.

Manufacturer-documented Reviewed 2026-11-09 · Revision 1

Follow these checks in Audio Fix →

When this guide applies

Already connected compatible XLR microphone requiring 48 V; phantom currently off.

Connection scope: Analog line / headphone audio. Symptom: My microphone isn’t working.

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

Does this exact microphone documentation explicitly require and permit 48 V?

Unknown compatibility, a passive ribbon or a jack-connected source stops here.

Look for: Confirm the actual prerequisite or observation. Unknown stops safely.

  • Manufacturer-documented Focusrite Scarlett Solo 4th Gen official user guide ↗PDF pages 12 — 48 V supplies only the XLR microphone input; check the actual microphone documentation before enabling.Exact model/generation named in this manual; external controls and documented host paths only. · Source checked 2026-11-09

step-1

Is that microphone already securely connected to the intended XLR input?

Do not hot-plug a microphone during this sequence.

Look for: Confirm the actual prerequisite or observation. Unknown stops safely.

  • Manufacturer-documented Focusrite Scarlett Solo 4th Gen official user guide ↗PDF pages 12 — 48 V supplies only the XLR microphone input; check the actual microphone documentation before enabling.Exact model/generation named in this manual; external controls and documented host paths only. · Source checked 2026-11-09

step-2

Is 48 V confirmed off, with recording stopped and monitor level reduced?

No blind toggle; enabling power can create a transient.

Look for: Confirm the actual prerequisite or observation. Unknown stops safely.

  • Manufacturer-documented Focusrite Scarlett Solo 4th Gen official user guide ↗PDF pages 12 — 48 V supplies only the XLR microphone input; check the actual microphone documentation before enabling.Exact model/generation named in this manual; external controls and documented host paths only. · Source checked 2026-11-09

step-3

Turn down that input preamp gain

Keep headphone/speaker levels reduced.

Look for: Perform only the stated operation, then confirm whether it could be completed.

  • Manufacturer-documented Focusrite Scarlett Solo 4th Gen official user guide ↗PDF pages 12 — 48 V supplies only the XLR microphone input; check the actual microphone documentation before enabling.Exact model/generation named in this manual; external controls and documented host paths only. · Source checked 2026-11-09

step-4

Press 48 V once and confirm the green enabled indication

Enable only the documented compatible input; do not unplug until power is safely off again.

Look for: Perform only the stated operation, then confirm whether it could be completed.

  • Manufacturer-documented Focusrite Scarlett Solo 4th Gen official user guide ↗PDF pages 12 — 48 V supplies only the XLR microphone input; check the actual microphone documentation before enabling.Exact model/generation named in this manual; external controls and documented host paths only. · Source checked 2026-11-09

step-5

Does the microphone now show a signal after gain is gently restored?

Phantom state alone is not proof of recording or microphone health.

Look for: Confirm the actual prerequisite or observation. Unknown stops safely.

  • Manufacturer-documented Focusrite Scarlett Solo 4th Gen official user guide ↗PDF pages 12 — 48 V supplies only the XLR microphone input; check the actual microphone documentation before enabling.Exact model/generation named in this manual; external controls and documented host paths only. · Source checked 2026-11-09

Possible result

Checks completed — report what happened

Completion is not an automatic solved result. Report solved, partly helped, did not help or could not follow based on your actual observation. No Audio Review physical test is claimed.

steps completed

Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.

    Possible result

    Keep these observations for official support

    A required prerequisite or response was not confirmed. Stop this sequence and use the exact model and partner documentation. Do not escalate to a factory reset, firmware 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 exact model, connection, partner capability and current control state before continuing. Do not guess settings or operate an updating product.

      insufficient data

      Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.

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