ULTIMEA Poseidon D80 Boom 7.1 Soundbar with Wireless Subwoofer

The ULTIMEA Poseidon D80 Boom is a 7.1-channel soundbar system listed with a wireless subwoofer and four wired surround speakers. Its HDMI eARC connection and app-based EQ controls suit a TV setup where you can accommodate several wired speakers, though the listing says it does not support DTS decoding.

At a glance

The system is listed with two rear and two front wired surround speakers alongside a wireless subwoofer.
HDMI eARC, optical and AUX inputs provide several listed ways to connect a TV or older device.
The app is claimed to offer EQ presets and six named listening modes, including Movie, Music and Night.
The manufacturer recommends a room size of 30–50m².

Price

£199.99Save 33%

Reference price: ~~£299.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Four wired surround speakers are listed, giving buyers a multi-speaker layout rather than a soundbar-only setup.
A wireless subwoofer avoids a signal cable to the subwoofer, although its power cable is listed separately in the box contents.
HDMI eARC is supported, with optical and AUX inputs also described for older devices.
App-based EQ customisation may help tailor sound for different listening preferences.

Cons

The four surround speakers are wired, so placement requires managing speaker cables around the room.
DTS decoding is not supported according to the listing.

Technical specifications

19 specifications

Identity and audio
Brand	ULTIMEA
Model	Poseidon D80 Boom
Audio channels	7.1
Maximum speaker output power	500 Watts
Frequency response	38 Hz
Audio output mode	Surround
Speaker type	Soundbar
Subwoofer driver diameter	6.5 Inches
Audio driver type	Dynamic Driver
Listed audio feature	Dolby Atmos

Connectivity and controls
Connection protocols listed	HDMI, AUX, Optical
HDMI configuration	1-in/1-out 4K HDMI with eARC
Subwoofer connection	Wireless
Controls listed	App
App EQ options claimed	121 expert EQ presets across genres like Bass, Pop, Classical, and Rock, plus 10-band and 6 tailored EQ modes including Movie, Music, Voice, Sport, Game, and Night.

Power and installation
Power configuration	Corded Electric
Mounting type listed	Wall Mount
Material listed	Plastic
Dimensions (D x W x H)	42.4D x 50W x 25.8H centimetres

What to know before buying

The listing presents Dolby Atmos support and a 7.1-channel configuration, but says DTS decoding is unsupported. Customer feedback reports mixed connectivity experiences. Confirm your TV's audio-output compatibility and that the listed inputs meet your setup needs.

What’s in the box

Included

Power adaptor
Subwoofer power cable
Stereo 3.5mm-to-RCA audio cable
Soundbar
Subwoofer
4 wired surround speakers
20-foot stereo RCA-to-RCA cable
HDMI cable
Digital optical cable
User manual
Wall-mount kit
Wall bracket
Mounting screws

Who is it for?

A good fit for

TV viewers wanting separate front and rear wired speakers with a wireless subwoofer.
Buyers with HDMI eARC, optical or AUX source devices and space to place four wired surround speakers.
Listeners interested in adjusting EQ through an app.

Less suited to

Buyers who need DTS decoding.
Rooms where running wires to four surround speakers would be impractical.
Anyone seeking a completely wireless speaker layout.

ULTIMEA Poseidon D80 Boom 7.1 Soundbar with Wireless Subwoofer · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 65 ratings

5 stars91%91%
4 stars3%3%
3 stars2%2%
2 stars2%2%
1 star2%2%

Customer feedback highlights perceived sound quality, performance and value, with some customers comparing the system favourably with more expensive setups. Connectivity feedback is mixed, which matters if the system must work with a particular TV or source. The listed HDMI eARC, optical and AUX inputs offer connection options, but do not establish compatibility with every setup.