A:Answer Hi, Thanks for the great question. The SoundTouch300 soundbar will only work with the AM300 bass module. The B2 Base Module is intended for the L1 systems only. If you have further questions, feel free to reach out to customer service. Here is a link you can use. http://bose.life/2qwENj4 . Click on your country, scroll down to "Contact Us" Tony – Bose Support