Audio Fix / setup help

Pro-Ject X1 B: select normal 33⅓ or 45 rpm playback

Pro-Ject X1 B — select normal 33⅓ or 45 rpm playback. 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 Pro-Ject X1 B. Normal factory belt arrangement confirmed, not 78 rpm or a modified drive. Only normal external user controls; no mains modification, chassis opening, reset or firmware installation.

Connection scope: Turntable / phono audio. Symptom: The record plays at the wrong speed.

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

The normal 33/45 belt is confirmed, the arm is raised, platter is assembled, the record speed is known and you accept changing the platter speed.

Look for: Choose only a detail you can confirm.

  • Manufacturer-documented Pro-Ject X1 B official user guide ↗pp.7–10 — Switching on/off and changing replay speed — Speed button selects 33, then 45; the corresponding LED stops flashing at full speed. Use the normal flat belt for 33/45. Changing 33/45 selection does not require a 78-rpm belt swap or cartridge change.Exact Pro-Ject X1 B. Cartridge, counterweight and belt variant must be known. No original non-B or non-EVO controller is substituted. · Source checked 2026-11-09

a1

Read the record’s labelled speed

Do not infer speed from the record diameter.

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

  • Manufacturer-documented Pro-Ject X1 B official user guide ↗pp.7–10 — Switching on/off and changing replay speed — Speed button selects 33, then 45; the corresponding LED stops flashing at full speed. Use the normal flat belt for 33/45. Changing 33/45 selection does not require a 78-rpm belt swap or cartridge change.Exact Pro-Ject X1 B. Cartridge, counterweight and belt variant must be known. No original non-B or non-EVO controller is substituted. · Source checked 2026-11-09

a2

Identify the exact normal speed control

Speed button selects 33, then 45; the corresponding LED stops flashing at full speed. Use the normal flat belt for 33/45. If the physical markings cannot be identified, stop.

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

  • Manufacturer-documented Pro-Ject X1 B official user guide ↗pp.7–10 — Switching on/off and changing replay speed — Speed button selects 33, then 45; the corresponding LED stops flashing at full speed. Use the normal flat belt for 33/45. Changing 33/45 selection does not require a 78-rpm belt swap or cartridge change.Exact Pro-Ject X1 B. Cartridge, counterweight and belt variant must be known. No original non-B or non-EVO controller is substituted. · Source checked 2026-11-09

a3

Select only the required normal speed

Leave an already correct selection alone. Do not calibrate the motor or move the belt to an unidentified pulley position.

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

  • Manufacturer-documented Pro-Ject X1 B official user guide ↗pp.7–10 — Switching on/off and changing replay speed — Speed button selects 33, then 45; the corresponding LED stops flashing at full speed. Use the normal flat belt for 33/45. Changing 33/45 selection does not require a 78-rpm belt swap or cartridge change.Exact Pro-Ject X1 B. Cartridge, counterweight and belt variant must be known. No original non-B or non-EVO controller is substituted. · Source checked 2026-11-09

result

Check the actual result

Is the intended record speed selected?

Look for: Choose only a detail you can confirm.

  • Manufacturer-documented Pro-Ject X1 B official user guide ↗pp.7–10 — Switching on/off and changing replay speed — Speed button selects 33, then 45; the corresponding LED stops flashing at full speed. Use the normal flat belt for 33/45. Changing 33/45 selection does not require a 78-rpm belt swap or cartridge change.Exact Pro-Ject X1 B. Cartridge, counterweight and belt variant must be known. No original non-B or non-EVO controller is substituted. · 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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