Audio Fix / setup help
Marshall Middleton II: restore one recorded pre-problem hardware bass setting
restore one recorded pre-problem hardware bass setting. 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 plays audio whose sound changed immediately after you increased only hardware BASS. The previous normal bass indication is positively recorded. No call, group, other-source takeover or update is active; you accept restoring that known earlier setting. Unknown earlier settings stop this guide.
Connection scope: Bluetooth · Analog line / headphone audio. Symptom: Playback sounds distorted.
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 plays audio whose sound changed immediately after you increased only hardware BASS. The previous normal bass indication is positively recorded. No call, group, other-source takeover or update is active; you accept restoring that known earlier setting. Unknown earlier settings stop this guide.
Look for: Confirm this exact setup and observation before continuing.
- If Yes, I confirm → Pause the familiar passage
- 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
Pause the familiar passage
Pause the source passage whose sound changed immediately after your deliberate bass increase. Keep other EQ unchanged.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Restore only the recorded bass setting
- 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
Restore only the recorded bass setting
Use the labeled BASS control to return to the exact earlier indicated level you personally recorded. Watch the ten-segment indication while adjusting; leave treble and main volume unchanged.
Look for: Observe the named indication or available control; stop if absent.
- If I completed this check → Compare the same passage quietly
- 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
Compare the same passage quietly
Resume the same item at its retained quiet level and compare. Stop for abnormal loud noise, heat or damage.
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 clearly record whether restoring only the known earlier bass setting changed the symptom?
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.
steps completed
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.