My first impression was mixed ... I almost make. I found the sound a bit confusing, especially a high level. I was annoyed at having paid such a price for fairly average speakers. Then I made the settings of the integrated equalizer to Itunes ... A little better, but blah. And I read the review from a customer, here I believe that advised changing the sound card with a USB DAC. I found a Muse X5 16 Euros 100% compatible MacOS, Linux and Win because you just plug it into a USB port and plug the Bose on the output. All for 16 Euros. I want to thank that person because, suddenly, the sound was not confused at all. Sound cards by default on PC (MacBook Pro in my case) are relatively poor for digital decoding. So, I do not think the phenomenon of running, but since I find them a very nice sound. At which point I can not do without me. I tried the model above but I find it too boom boom and voices are less present. The build quality is good.