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Arcam A15: Compare the documented wide PLL mode for digital interruptions

Arcam A15 — Compare the documented wide PLL mode for digital interruptions. 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 Arcam A15. A15 only, known supported stereo PCM input; save the existing PLL setting before this reversible comparison. 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 this the original A15, with supported stereo PCM on a digital input, and can you identify Input PLL and its current STD setting?

Look for: Choose only a detail you can confirm.

  • Manufacturer-documented ARCAM A5/A15/A25 English Owner’s Manual ↗Input PLL, PDF p8 — A15 has an Input PLL option: STD is standard; WDE is more tolerant of variable-quality digital input signals. This option is not documented for A25.Original ARCAM A15; not the later + model. · Source checked 2026-11-09

a1

Open Input PLL

Open the Audio Menu and select Input PLL.

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

  • Manufacturer-documented ARCAM A5/A15/A25 English Owner’s Manual ↗Input PLL, PDF p8 — A15 has an Input PLL option: STD is standard; WDE is more tolerant of variable-quality digital input signals. This option is not documented for A25.Original ARCAM A15; not the later + model. · Source checked 2026-11-09

a2

Compare Wide mode

Select WDE for the controlled listening comparison. If it does not help, restore the recorded STD setting rather than changing unrelated options.

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

  • Manufacturer-documented ARCAM A5/A15/A25 English Owner’s Manual ↗Input PLL, PDF p8 — A15 has an Input PLL option: STD is standard; WDE is more tolerant of variable-quality digital input signals. This option is not documented for A25.Original ARCAM A15; not the later + model. · Source checked 2026-11-09

result

Check the actual result

Is the same programme now uninterrupted during the comparison?

Look for: Choose only a detail you can confirm.

  • Manufacturer-documented ARCAM A5/A15/A25 English Owner’s Manual ↗Input PLL, PDF p8 — A15 has an Input PLL option: STD is standard; WDE is more tolerant of variable-quality digital input signals. This option is not documented for A25.Original ARCAM A15; not the later + model. · 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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