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Bose Companion 5 Multimedia Speakers Great set of USB speakers with base unit that I’ve used for several years. The last few months I can no longer get the volume out that I used to. These babies used to rattle the windows. Have changed ports on my MacPro running Sierra 10.12.6.. They have a separate volume control device from turning on and off and adjusting volume. To use you have to select the Bose driver in System preferences > Sound > Bose USB Audio. Here’s what they are (not cheap) https://www.bose.com/en_us/products/spea… The Bose community is reporting problems with High Sierra but no solutions: https://community.bose.com/t5/Stereo-Spe… When I use iTunes I get about double the volume I do when using Safari. Is this a Safari setting I am missing? I just played a song on iTunes, went back to Safari and no sound and the Bose USB option no longer is in my speaker selection menu. Went to Audio MIDI Setup and speaker driver is not there now. MacRumors has reports of similar issues with Sierra but no solutions: https://forums.macrumors.com/threads/bos

Hi @mayer , You’d know more about it than me but have you tried to see if there are any updates available that may have a later version Bose driver along with it? Bose doesn’t appear to have driver updates available for download except BT ones