I cannot get my logitech external speakers to work

Hello there Salvatore,

It sounds like you are trying to use a set of either bluetooth speakers or speakers connected with a 3.5mm plug or digital out on the computer. If the latter, I would recommend you use the following article to help troubleshoot the issue:

OS X Mavericks: If you can’t hear sound from your speakers

If they are bluetooth, I would recommend this article instead:

OS X Mavericks: Set up Bluetooth audio devices

Thank you for using Apple Support Communities.

All the best,

Sterling