Audio Fix / setup help

Audiolab 9000A: Compare Wide DPLL for a digital input that loses lock

Audiolab 9000A — Compare Wide DPLL for a digital input that loses lock. Follow the exact documented route and keep the actual result.

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

Follow these checks in Audio Fix →

When this guide applies

Exact Audiolab 9000A. 9000A SPDIF input only, with actual Normal setting recorded; restore it if the comparison does not help. Only normal external user controls; no mains modification, chassis opening, reset or firmware installation.

Connection scope: Optical digital audio. Symptom: Audio keeps cutting out.

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 scope. Follow the link that matches what you actually observe. Alternative branches are not a single sequence of actions.

scope

Confirm the exact setup

Is an optical SPDIF input actually losing digital lock, and is its current DPLL setting Normal?

Look for: Choose only a detail you can confirm.

  • Manufacturer-documented Audiolab 9000A Owner’s Manual ↗DPLL, PDF p10; menu tree, p15 — Normal is the default DPLL mode. Wide is intended only for a given SPDIF input that has difficulty locking to the source.Exact 9000A. · Source checked 2026-11-09

a1

Open that input DPLL option

Enter MENU and select DPLL for the affected optical input.

Look for: Perform this one check and observe the actual response.

  • Manufacturer-documented Audiolab 9000A Owner’s Manual ↗DPLL, PDF p10; menu tree, p15 — Normal is the default DPLL mode. Wide is intended only for a given SPDIF input that has difficulty locking to the source.Exact 9000A. · Source checked 2026-11-09

a2

Compare Wide on that input

Select Wide for the comparison. Restore the recorded Normal setting if it does not help; do not change unrelated input settings.

Look for: Perform this one check and observe the actual response.

  • Manufacturer-documented Audiolab 9000A Owner’s Manual ↗DPLL, PDF p10; menu tree, p15 — Normal is the default DPLL mode. Wide is intended only for a given SPDIF input that has difficulty locking to the source.Exact 9000A. · Source checked 2026-11-09

result

Check the actual result

Does the same supported digital source now remain locked?

Look for: Choose only a detail you can confirm.

  • Manufacturer-documented Audiolab 9000A Owner’s Manual ↗DPLL, PDF p10; menu tree, p15 — Normal is the default DPLL mode. Wide is intended only for a given SPDIF input that has difficulty locking to the source.Exact 9000A. · Source checked 2026-11-09

Possible result

Confirm the unknown detail first

Do not infer a source setting, installed cartridge, connector role, software state or partner capability. Obtain the exact documentation before continuing.

insufficient data

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

    Possible result

    Keep the actual observation for support

    Record the exact model, source, input and last observed response. These checks do not diagnose a failed component. No reset, service work or blind update is prescribed.

    next support

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

      Possible result

      Checks completed — keep the observed result

      This records the observation in this particular setup, not a guaranteed cure, physical Audio Review test or measurement.

      steps completed

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

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