The Samsung HW-Q70R uses a 3.1.2-channel speaker configuration, with a claimed frequency range of 35Hz to 20kHz and a total claimed power of 330W. There are three forward-firing speakers, which means the soundbar has a dedicated centre channel for dialogue.
It has a pair of upward-firing speakers that literally bounce sounds off the ceiling, thus creating the illusion of overhead channels. This is what Samsung refer to as Acoustic Beaming, and it can be very effective, although for the best results you need a low, flat, and reflective ceiling.
The '.1’ part of this system is the wireless active subwoofer. This newly-designed bass-reflex model uses a side-firing 8-inch driver, coupled with a rear port to deliver an impressive amount of bass extension for a bar and sub combination.
The HW-Q70 supports both Dolby Atmos and DTS:X, along with all their other variations aside from IMAX Enhanced DTS:X. The soundbar and subwoofer can deliver 3.1.2 channels out of the box, but those wanting to add rear channels can buy the optional SWA-8500S wireless speakers.
This is the first of Samsung’s 2019 soundbars to have been fully developed in conjunction with its Harman Kardon subsidiary. The main design and testing was still conducted at Samsung’s Audio Lab in California, but Harman added its expertise and tuned the resulting system.
Samsung has really stripped back the connectivity on the HW-Q70R, but at least the HDMI ports can handle 4K/60p, 4:4:4, HDCP 2.2, and high dynamic range (specifically HDR10, HLG, HDR10+, and Dolby Vision).