Dec 5, 2016
Thanks for the question. The SoundBar and remote are the same, and it does have the AdaptiQ calibration headset.
The bass module that comes with the system sold at Costco is smaller, with a 5.5" driver instead of the 10" driver that is in the AM300.
Dec 26, 2017
but according to the costco link and screenshot below, it is written as 10"
Dec 27, 2017
May 16, 2016
Thank you for the question. The Compact Acoustimass, has a 5.25" driver whereas the full size Acoustimass 300 has a larger 10" driver. The increased driver size will yield an increase in output. If there are any users who have compared the two side by side, we'd love to hear about their experience!
We have responded to your post HERE.
Brent - Bose Support