![Bowers & Wilkins ISW4 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier and back-box at Crutchfield Bowers & Wilkins ISW4 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier and back-box at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2019/23/749/g749ISW4-o_other1.jpg)
Bowers & Wilkins ISW4 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier and back-box at Crutchfield
![Bowers & Wilkins ISW-3 In-wall / In-ceiling Subwoofer – Sollfege.com - Premium Home Audio, Video, Automation Bowers & Wilkins ISW-3 In-wall / In-ceiling Subwoofer – Sollfege.com - Premium Home Audio, Video, Automation](https://cdn.shopify.com/s/files/1/0672/3328/4386/products/db3d_img_gloss_black_02.png?v=1674632218&width=533)
Bowers & Wilkins ISW-3 In-wall / In-ceiling Subwoofer – Sollfege.com - Premium Home Audio, Video, Automation
![Bowers & Wilkins ISW3 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier at Crutchfield Bowers & Wilkins ISW3 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/620/378/products/2019/24/700/g700ISW3SA-M.jpg)
Bowers & Wilkins ISW3 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier at Crutchfield
![Bowers & Wilkins ISW3 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier at Crutchfield Bowers & Wilkins ISW3 and SA250 Mk2 Bass Package Passive in-wall subwoofer with matching external amplifier at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/620/378/products/2019/24/700/g700ISW3SA-F.jpg)