This has been coming down in price a bit recently but this is the cheapest Ive seen it, even considering Samsungs cashback deals. No cashback here, just £148 ...

Samsung HWS701D Ultra Slim 3.1ch Lifestyle Soundbar with Subwoofer White Ultra Slim Design Ultra slim and powerful Wireless Dolby Atmos Incredible cinematic ...

Samsung HWS701D 3.1ch Ultra Slim Soundbar Subwoofer. Seems like a great deal for a Dolby Atmos soundbar.