XBS RQ-P205 R-Player Panasonic, Matsushita, National ナショナル also tubes | Radiomuseum
Marsel Nadershin - Panasonic S-XBS
Panasonic XBS (Extra Base) Stereo Headphones; No Foam Covers; Work Great! | eBay
Panasonic On Ear Headphones with XBS for Extra Deep Bass - RP-HT227
Amazon.com: Panasonic RB-M300B Deep Bass Wireless Bluetooth Immersive Headphones with XBS DEEP and Bass Augmentation (Black) (RB-M300B-K) : Electronics
Panasonic XBS Old School Boom Box Stereo Radio Cassette Recorder RX-FT560 for Sale in Roseville, CA - OfferUp
Amazon.com: Panasonic RQV75 Headphone Stereo Radio Cassette with XBS : Electronics