cavedriver
Addicted to Fun and Learning
Was just looking over some "best of CES" reviews and this speaker came up for being able to produce massive bass very efficiently due to its novel "Repel-Attact Driver". If the design can do this with accuracy I expect it could replace most tradtional methods of bass driver design. Of course "accuracy" is a big question and a lot could go wrong so it will be interesting to see how it really performs in testing. Unsurprisingly the portable uses class D amps and plenty of DSP to manage it's sound. Here's an article with some more detail about the design:
audioxpress.com

Brane Audio Debuts Brane X Portable Speaker with Built-in Subwoofer
Brane Audio, an audio company from Austin, Texas, is introducing a new portable speaker at CES 2023 which the company says is able to generate expanded low frequency response. The Brane X is the first speaker in its class to include a subwoofer, producing much more bass than comparable portable...