The Bass Module 700 has no microphone, no voice assistant and no controls of its own, so there is nothing on the module to detect or fix. The microphone in this system belongs to the host soundbar: the Smart Soundbar 600 has two microphones for voice and a microphone-off button on top, and the Smart Ultra Soundbar has a built-in microphone with a status LED that is red when the microphone is disabled. If voice commands fail, follow the soundbar's Alexa troubleshooting.
Differential
Likely causes of “Bose Bass Module 700 microphone sounds bad or is not detected”, and how to tell them apart
- 1
The problem is on the soundbar
What separates it Voice commands fail on the soundbar while bass from the module plays normally
How to confirm Follow the host soundbar's microphone and Alexa steps
- 2
The soundbar microphone is switched off
What separates it The soundbar's own microphone LED is glowing red instead of being off
How to confirm Press the soundbar's microphone button to switch it back on
- 3
The module is mistaken for the microphone
What separates it You look for a microphone or button on the module
How to confirm Remember the module has no controls; use the soundbar or the Bose app
- 4
A voice-assistant account problem
What separates it Alexa stopped answering on the soundbar after having worked before
How to confirm Remove and re-add Alexa in the Bose app
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether the soundbar's own microphone LED is red
- Which soundbar the module is attached to
- Whether the module's LED is solid white
Try in this order
0 of 5 completedIdentify the host
ReversibleFind the model name on the soundbar; the 600 and Ultra have different microphone controls.
Check the microphone light
ReversibleOn the Ultra, the microphone LED is red when the microphone is disabled. On the 600, a red indicator on the top button means disabled.
Follow the host steps
ReversibleUse the soundbar's Alexa troubleshooting: re-link Alexa in the Bose app and confirm the Amazon account is not shared with another Bose account.
Confirm the module is fine
ReversibleLook at the module's lower rear LED. Solid white means it is connected and unaffected by the voice issue.
Reset the host
ReversibleReset the soundbar with the module unplugged for 30 seconds and reconnect the module after the soundbar reboots.
Model-specific
What is true of this model and not of its siblings
- Tone controls
- Bass level and tone are adjusted on the host soundbar, not on the module, so the module has no bass knob or app control of its own.
- Serial number
- The serial number is printed on the label on the bottom of the module, and Bose needs it for a repair, exchange or trade-in. If you cannot provide a valid serial number or date of manufacture code, Bose cannot process service transactions, although it can still give troubleshooting help.
- Setup step
- During Smart Soundbar 600 setup in the Bose app the accessory step offers Connect for a bass module or surround speakers, or Do It Later. If you skip it, repeat the accessory step from the soundbar's settings once the module is plugged in and its LED is blinking amber.
Stop boundary
When this stops being a self-service repair
- !If the soundbar's microphone never works after re-adding Alexa and a reset, request service for the soundbar
- !If the module's LED shows an unlisted state, Bose says it requires service
Evidence ledger
Sources behind this answer
The rear LED states from off to white blinking.
Outlet, cord and LED checks.
Unplug 30 seconds and wait 15 seconds to reconnect.
The label on the bottom of the module.
The module works only with a host soundbar or console.
Refers to the host product's troubleshooting.
Refers to the host product's troubleshooting.
Refers to the host product's troubleshooting.
Tone is set on the host product.
The Connect step for an accessory bass module.
Disconnect the bass module and surround receivers during a reset.
The same accessory disconnect step for the Ultra.
Lists the Acoustimass 300 and Bass Module 700 LED states.
Exact questions
Common questions
Does the module have a microphone?+
No, it has no microphone or controls.
Which product listens for voice?+
Only the host soundbar has microphones; the module has none.
What does a red mic LED mean?+
On the Ultra soundbar a red microphone LED means the microphone is disabled.
Where do I fix Alexa?+
In the Bose app under the soundbar's settings.
Does Alexa control the module?+
It controls the soundbar system volume.
Will re-linking Alexa affect bass?+
No, re-linking Alexa changes only voice control, never the bass or the module link.
Can I mute by voice?+
Bose says the mic cannot be switched by voice.
Which Bose page covers this?+
The soundbar's own troubleshooting article for Alexa not responding.
Does the 600 and the Ultra handle the mic the same way?+
No: the Smart Soundbar 600 has two microphones and a physical mic-off button on top, while the Smart Ultra Soundbar has one built-in microphone shown by a status LED that turns red when disabled, so check the control style that matches the actual host, not the other model's article.