Yes you can!
The Pantheone I have AUX inputs to connect other audio gear. A turntable / CD-player can be connected to Pantheone I speaker and then played to other speakers in your system.
Example, connecting a turntable:
1. Connect turntable (AUX) by cable
2. In Pantheone App on Source page, select LINE as a source.
3. Start playing your music on your turntable.
To play to more speakers wirelessly:
1. The speaker to which you have connected the turntable must be the Master speaker in the group.
2. Drag and drop other speakers onto this speaker to make a group. Sound will play to all speakers in the group.