Harmon Kardon system includes 1040W amplifier powering 9 speakers. 5- in the sound bar front dash 2- in the rear doors 1- woofer in the plenum 1- additional subwoofer in the trunk "The Harman Kardon Premium Surround Sound System in the new Volvo EX30 reflects Harman’s and Volvo Cars’ mutual passion for high-quality living and aesthetic elegance, as well as their commitment to creating rich and memorable experiences for every user. The car was designed from the ground up to make users’ lives more convenient, more relaxing, and more enjoyable. Thanks to the Harman Kardon audio system, this small SUV delivers big sound.” – Greg Sikora, Senior Director, Global Acoustic Systems Engineering at HARMAN. HARMAN Automotive brings immersive sound to the new, fully electric Volvo EX30 with a custom-made Harman Kardon sound system | HARMAN The 400W 8 speaker system in my Kona EV is pretty good, however, can't wait to soundcheck this one in the EX-30.