The YAS-152 is a wide sound bar that matches 55 to 60 inch large screen TVs. Its integrated body is equipped with two 6.5 cm (2-1/2") speakers, two 8.5 cm (3-1/2") subwoofers, & a digital amp with 120 W total output. The speaker & subwoofer units are separated to the left & right sides, for sound with breadth & superior imaging suitable for a large screen. The wide shape & superior sound bar design achieve larger cabinet capacity, letting you enjoy TV sound with richly powerful bass. The dual built-in subwoofers employ large magnets & large-diameter voice coils to realise dynamic & robust bass sound reproduction. This ensures that the overall sound has a rich sense of presence, making movie effect sounds more realistic. The YAS-152 employs a bass reflex port that has a straight shape & adequate length to provide outstanding bass response together with the large volume cabinet. The duct outlet is shaped like a trumpet bell, which reduces wind noise for better sound clarity. Yamaha's exclusive AIR SURROUND XTREME reproduces 7.1-channel surround sound with high quality, excellent imaging & rich presence, far superior to that of any other soundbar. You'll experience an extremely realistic & impressive sound field, with clear dialogue in the front & dynamic sound action at the back. The YAS-152 is compatible with popular surround sound formats, such as Dolby Digital & DTS Digital Surround, so you get the full effect of multichannel movie sound. Enjoy the sound of music or movies from your smartphone or tablet wirelessly. While watching the screen, it's easy to perform select, play & stop operations, as you enjoy sound backed by the power of the YAS-152. It has a Bluetooth standby mode, so by linking to Bluetooth on/off via the terminal, you get the convenience of the YAS-152 turning on & off automatically.