Audio Fix / setup help
Marshall Middleton II: distinguish the USB power port from the separate audio input
distinguish the USB power port from the separate audio input. Use the stated exact hardware and connection scope.
Manufacturer-documented Reviewed 2026-11-09 · Revision 1
Follow these checks in Audio Fix →When this guide applies
Exact Marshall Middleton II. Exact Middleton II is connected to a computer by USB-C while the user seeks a documented USB audio destination. No transfer/update is active, and playback is paused. This checks documented port roles without rewiring an active source.
Connection scope: USB audio. Symptom: An option or codec is missing.
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
Exact Middleton II is connected to a computer by USB-C while the user seeks a documented USB audio destination. No transfer/update is active, and playback is paused. This checks documented port roles without rewiring an active source.
Look for: Confirm this exact setup and observation before continuing.
- If Yes, I confirm → Identify the actual connected port
- 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 middleton2 port functions ↗English printed 4–7: USB power, AUX audio, hardware tone controls — The manual labels USB-C as power input/output for charging the speaker or another device; the separate analog audio input is3.5 mm AUX. Bass/treble controls use a ten-segment indication.Exact Marshall Middleton II. · Source checked 2026-11-09
a1
Identify the actual connected port
With source media paused inspect whether the cable is in Middleton II USB-C power input/output. Do not raise volume to force enumeration.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Read the documented USB role
- 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 middleton2 port functions ↗English printed 4–7: USB power, AUX audio, hardware tone controls — The manual labels USB-C as power input/output for charging the speaker or another device; the separate analog audio input is3.5 mm AUX. Bass/treble controls use a ten-segment indication.Exact Marshall Middleton II. · Source checked 2026-11-09
a2
Read the documented USB role
The manual describes speaker charging or power-bank output at that socket. Charging is not evidence of a USB audio endpoint.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Locate the separate analog input
- 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 middleton2 port functions ↗English printed 4–7: USB power, AUX audio, hardware tone controls — The manual labels USB-C as power input/output for charging the speaker or another device; the separate analog audio input is3.5 mm AUX. Bass/treble controls use a ten-segment indication.Exact Marshall Middleton II. · Source checked 2026-11-09
a3
Locate the separate analog input
Identify rear 3.5 mm stereo AUX without reconnecting cables. An AUX setup needs its own compatible source headphone output and instructions.
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 middleton2 port functions ↗English printed 4–7: USB power, AUX audio, hardware tone controls — The manual labels USB-C as power input/output for charging the speaker or another device; the separate analog audio input is3.5 mm AUX. Bass/treble controls use a ten-segment indication.Exact Marshall Middleton II. · Source checked 2026-11-09
observe
Check the result
Can you distinguish documented USB power from the separate AUX audio function without assuming a charging cable enables USB sound?
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 middleton2 port functions ↗English printed 4–7: USB power, AUX audio, hardware tone controls — The manual labels USB-C as power input/output for charging the speaker or another device; the separate analog audio input is3.5 mm AUX. Bass/treble controls use a ten-segment indication.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.
documented limitation
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
- Manufacturer-documented Marshall Middleton II — official middleton2 port functions ↗English printed 4–7: USB power, AUX audio, hardware tone controls — The manual labels USB-C as power input/output for charging the speaker or another device; the separate analog audio input is3.5 mm AUX. Bass/treble controls use a ten-segment indication.Exact Marshall Middleton II. · Source checked 2026-11-09