Model II / Versions from Serial Number

L1 Model II

Fan

This is how to read the Serial Number to tell if your system was shipped with Firmware version 1.5 or later. If so, the fan runs constantly and this is the correct behaviour.

If the underlined numbers are greater than 4284 then the unit was likely shipped with Firmware version 1.5, afte October 2014. Note: There is no user installable update for units with earlier serial numbers.

Support for Bose B2 bass module

Use your Serial number to check versions when shipped

This is how to read the Serial Number to tell if your system was shipped with Firmware version 1.4 and System EQ 1.04 (both required to fully support the B2 Bass Module).

Note: The grayed out characters may be different on your system.

If the underlined numbers are lower than 2250 then see L1® Model II Power Stand Firmware Updates

For more information on the Model II see: Model II

Use your T1 to check

If you have a T1 ToneMatch Audio Engine you can use it to check the Firmware and System EQ versions that are currently installed. If the Model II has been updated since it was manufactured, you need the T1® to read what is installed.

See: Model II / Versions from T1®

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