Deane, you should NEVER place the Bose L1 Compact on a table. This results in the loss of the sub-woofer sounds. Additionally, those extension sections are what provides the mid range and separation from the bass sounds and at least one should be used, but preferably both. Believe me, your audiences will know the difference when they hear the system set up like this.
Gary
We always use at least one extension on our Compacts as that seems to give a more full sound.
We have placed the Compact on a table when the were used just as a speaker for voice/talking.
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