Bose Seismic Sound Home Theater System vs Bose Surround Speakers

Both are Bose 5.1.2 Atmos setups built around a soundbar, but they are not the same package. The Seismic Sound bundle is the complete system: Smart Ultra Soundbar, Bass Module 700 subwoofer and Surround Speakers 700, so it delivers real low-end and full surround out of the box. The Surround Sound System bundle is essentially the rear speakers and wireless receivers, meant to add to a soundbar you already own. Buy the full Seismic bundle if you want one purchase that covers the whole room; buy the speaker bundle only if you already have a compatible Bose soundbar and just need rear channels.

• Choose the Bose Seismic Sound Ultimate Home Theater System if you want a complete soundbar, subwoofer and rear-speaker setup in one box with Dolby Atmos and ADAPTiQ room calibration.
• Choose the Bose Surround Sound System bundle if you already own a compatible Bose soundbar and want to add wireless rear speakers without running cables across the room.