Audio Fix / setup help
Marshall Middleton II and Emberton III: establish a second live Bluetooth source
One shared documented two-source workflow for Middleton II and Emberton III, each with two active and eight saved devices.
Manufacturer-documented Reviewed 2026-11-09 · Revision 1
Follow these checks in Audio Fix →When this guide applies
The selected exact Middleton II or Emberton III is powered with source A actively connected. B is a nearby supported source; there is no third active link, no call/update and fewer than eight saved records are confirmed. Saved records alone do not prove active connections.
Connection scope: Bluetooth. Symptom: Switching between devices 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 scope. Follow the link that matches what you actually observe. Alternative branches are not a single sequence of actions.
scope
Confirm the model and connection
The selected exact Middleton II or Emberton III is powered with source A actively connected. B is a nearby supported source; there is no third active link, no call/update and fewer than eight saved records are confirmed. Saved records alone do not prove active connections.
Look for: Confirm this exact setup and observation before continuing.
- If Yes, I confirm → Accept adding source B
- If No / my setup differs → Continue with source and model support
- If I cannot confirm → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
accept_connection
Accept adding source B
Adding source B starts discovery and may interrupt current playback. You accept this new pairing and the temporary audio interruption while preserving source A’s saved record. Continue?
Look for: Explicit informed acceptance is required before the next action.
- If I accept these effects → Pause the first connected source
- If No / leave this unchanged → Continue with source and model support
- If I cannot confirm → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
a1
Pause the first connected source
Pause music on source A, which already shows the exact speaker actively connected. Leave its Bluetooth radio on.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Start exact-model Bluetooth discovery
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
a2
Start exact-model Bluetooth discovery
Hold the speaker’s Bluetooth button until its indicator slowly pulses blue, then release. Do not continue towards a reset hold.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Pair the intended second source
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
a3
Pair the intended second source
On source B select the exact selected speaker’s name (MIDDLETONII or EMBERTONIII, or its deliberately assigned name) in Bluetooth discovery and accept ordinary pairing. Do not select its separate LE/control entry.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Check both active connections
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
a4
Check both active connections
Inspect both sources’ Bluetooth device states. Both must show connected, rather than only stored in a pairing list.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Check the result
- If I cannot complete this → Continue with source and model support
- If I cannot determine this → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
observe
Check the result
Do source A and source B both show a live speaker connection within the two-device maximum?
Look for: Confirm this exact setup and observation before continuing.
- If Yes, I confirm → Checks completed
- If No / my setup differs → Continue with source and model support
- If I cannot confirm → More information is required
- Manufacturer-documented Marshall Middleton II — official marshall exact connections ↗Connect and pair: two active sources, eight saved records; Connecting an AUX device — The exact model supports two simultaneous Bluetooth devices and remembers eight prior devices. Its AUX setup uses a 3.5 mm stereo lead and requires all connected Bluetooth players paused.Exact Marshall Middleton II. · Source checked 2026-11-09
Possible result
More information is required
An unknown state is not a diagnosis. Record the last visible indication and consult the exact model instructions.
insufficient data
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Continue with source and model support
Keep the source, connection and last observation. Do not reset, open equipment or change full-scale output to compensate for an unconfirmed result.
next support
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Checks completed
The requested observation was confirmed in this setup. It does not establish a hardware repair or guarantee another source behaves the same.
steps completed
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.