Sony HT-A5000 vs Samsung HW-Q800C: Dolby Atmos Soundbars Compared

The Sony HT-A5000 and the Samsung HW-Q800C attack the same brief from opposite directions: both are premium 5.1.2-channel soundbars compatible with Dolby Atmos and DTS:X, but Sony asks a single long bar to do everything — deep bass included — while Samsung splits the work between a more compact bar and a dedicated wireless subwoofer. This comparison draws on the published tests of both products; Truthful Reviews has not bench-tested either unit itself.

Design and Build

The HT-A5000 is a 121 cm monolith, 6.7 cm tall and 14 cm deep, dressed in matt black plastic with protective grilles — deliberately sober next to its mirror-topped HT-A7000 sibling, and praised for an exemplary standard of finish. It best suits a 55- or 65-inch television and ships with a wall-mount system, HDMI and mini-jack cables and a remote control.

The HW-Q800C bar is slightly shorter at around 110 cm, wrapped almost entirely in a discreet micro-perforated grille with four small buttons on top, and is joined by a genuinely compact subwoofer: 40 cm tall and deep, 21 cm wide, about 10 kg, with a 20 cm side-firing driver and a rigid one-piece bass-reflex vent. Wall fixings and screws are included, along with a radio-frequency remote whose push-pull volume key is easy to find in the dark.

Internally, the two follow different recipes for the same 5.1.2 count. Sony fields three front drivers, two side tweeters coupled to beam-forming waveguides, two dedicated bass drivers and two up-firing units. Samsung gives each of the three front channels an oblong mid driver plus a dome tweeter, adds two large side-mounted tweeters for surround duty and two small up-firing drivers, and leaves everything below the bar's sealed enclosure to the subwoofer.

Connections and Formats

Here the two part company most clearly. The Sony carries an HDMI 2.1 input that passes 8K, 4K at 120 Hz and Dolby Vision, alongside an eARC output, optical input, USB-A port and an S-Center output for using a compatible Bravia television as the centre speaker. The Samsung also offers an HDMI input and eARC output plus optical, but its passthrough stops at 4K 60 Hz and supports HDR10 and HDR10+ only — no Dolby Vision — so a Dolby Vision Blu-ray player or a console running beyond 60 frames per second must be connected directly to the television instead. For gamers and Dolby Vision viewers, the HT-A5000 has the stronger video path.

Both bars carry Wi-Fi and Bluetooth with broad casting support. Sony covers Chromecast, AirPlay 2 and Alexa casting, plus its 360 Reality Audio music format via Amazon Music, Tidal and Deezer. Samsung answers with AirPlay 2, Chromecast, Spotify Connect and voice-assistant control through Google or Alexa — but Dolby Atmos music cannot be streamed to it from a phone; an HDMI source such as an Apple TV 4K is required for Atmos music playback.

Features, Apps and Calibration

The Sony pairs a busy, button-heavy remote with an unusually complete and responsive on-television interface, and its automatic acoustic calibration completes in around ten seconds to audible benefit. Its many functions can feel intimidating at first, and its Music Center app adds streaming control.

Samsung routes setup and fine control through the SmartThings app, which offers four listening modes — Standard, judged by far the most agreeable, plus Surround, Game and a spectacular but artificial-sounding Adaptive mode — along with a night mode that compresses dynamics intelligently, a dialogue-enhancement setting mainly useful for broadcast television, and an equaliser spanning 150 Hz to 10 kHz. The layout scatters related settings across several pages, which costs some convenience. Samsung's SpaceFit Sound room optimisation emits no audible calibration signal and behaves identically from room to room, yet enabling it does subtly widen the soundstage, so it remains worth switching on. One further Samsung quirk: standby consumption is unusually high at around 8 W for the pair, where typical soundbars draw a couple of watts.

Sound Quality

The HT-A5000 impresses with balance and transparency: detail and precision were judged beyond reproach, treble extension widens the stage, and voices emerge naturally, helped by a dedicated Voice mode. Its bass reaches surprisingly deep for a bar with no subwoofer — deep enough to question whether one is needed — though impacts can drag, lacking a little reactivity that an optional SA-SW5 or SA-SW3 subwoofer can restore.

The HW-Q800C earns its praise differently. Its tweeters give the three front channels genuinely fine, precise reproduction with an even tonal balance from bottom to top, and the subwoofer integrates seamlessly, delivering clean, homogeneous bass that reaches down towards 30 Hz — low enough to be felt as much as heard. A slight dip around 100 Hz trims a little impact but makes the sub impossible to localise in the room, a clever trade. The system holds its composure at very high volume, filling rooms of 30 to 40 m², and — unusually for a soundbar — acquits itself honourably with music of all kinds, from electronic to classical to metal. Dialogue reproduction is excellent straight out of the box.

Surround, Atmos and Height

Neither bar performs miracles without rear speakers. The Sony's spatialisation was rated particularly wide and immersive after calibration, its lateral effects escaping the bar's physical limits; its height effects are uneven — some barely rise, others land with astonishing overhead precision — and its Sound Field upmixer flatters films while degrading music. The Samsung produces a pleasingly wide, well-layered front stage with present lateral effects, but its rear impression is thin, its up-firing drivers raise the front stage rather than flying sounds overhead, and the vertical dimension was judged modest in both of its published tests. Both systems accept optional wireless rear speakers — Sony's SA-RS5 or SA-RS3S, Samsung's surround kit — to fill in what physics denies a lone bar.

Ecosystem Extras

Owners of the matching television brand unlock the best of each. A recent Samsung TV enables Q-Symphony, which plays the television's own speakers in concert with the bar — found to noticeably improve spatialisation, frontal width and, above all, perceived height — and permits fully wireless audio from the TV, Dolby Atmos included. Sony answers with its S-Center connection, letting a compatible Bravia act as the centre channel, plus deep integration with its own interface. Neither advantage travels across brands.

Which Should You Buy?

Choose the Sony HT-A5000 if you want a single-box installation with no subwoofer on the floor, the fullest video passthrough — 8K, 4K/120 Hz and Dolby Vision — for a games console or premium player, 360 Reality Audio music, or if a Bravia television sits at the centre of your system. Choose the Samsung HW-Q800C if you want the visceral, felt-in-the-chest bass only a dedicated subwoofer provides, class-leading dialogue clarity, a system that keeps its balance at party volume in rooms up to 40 m², genuinely enjoyable music playback — or if a recent Samsung TV lets you add Q-Symphony. Both are accomplished 5.1.2 performers; the honest difference is less about quality than about which trade-offs — and which television — already live in your sitting room.