Polk Audio Signa S2 vs Samsung HW-B650F

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Signa S2 compared with HW-B650F

	Polk AudioSigna S2	SamsungHW-B650F
Overview
Released
Released	2018	2025
Sound
Type
Type	Soundbar	Soundbar
Channels
Channels	2.1	3.1
Dolby Atmos
Dolby Atmos	No	No
Drivers
Drivers	Two 1.25 × 4.4 in oval midrange drivers and two 1 in tweeters; included ported subwoofer has a 5.25 in driver. Maker sheet's 165 mm parenthesis conflicts with its inch value and current maker table's 13.34 cm.	Four speakers across the 3.1-channel system, including a dedicated centre channel and wireless subwoofer; rear speakers are not included
Amplifiers
Amplifiers	–	Maximum amplifier output: 120 W soundbar and 250 W subwoofer in the exact UK manual; maximum output, not continuous RMS ratings
Frequency response
Frequency response	45 Hz–20 kHz system response (maker; no tolerance published)	–
Audio formats
Audio formats	Dolby Digital decoding with virtual surround presentation; stereo 2.1 physical arrangement, no Atmos or dedicated centre channel (RTINGS); DTS unsupported (Heise)	Dolby Digital, DTS and DTS Virtual:X, with two-channel LPCM; no Dolby Atmos decoding. USB playback of MP3, OGG, AAC, WAV, FLAC and AIFF files
Room tuning
Room tuning	Movie, Music and Night modes; bass adjustment and three-level VoiceAdjust	Standard, Surround Sound, Bass Boost, Game, Adaptive Sound and DTS Virtual:X modes; Voice Enhance, Night mode, centre-channel and subwoofer levels, bass/treble control, and seven-band EQ in Standard mode. No SpaceFit room calibration. Q-Symphony with compatible Samsung TVs
Connections
Wi-Fi
Wi-Fi	No	No
Bluetooth
Bluetooth	Yes	Yes
AirPlay
AirPlay	No	No
HDMI eARC
HDMI eARC	No	No
Voice assistants
Voice assistants	None	None
Bluetooth
Bluetooth	–	Bluetooth 4.2 with SBC codec; one TV or two mobile devices connected at a time
Ports
Ports	One HDMI ARC connection, optical digital and 3.5 mm AUX input; no separate HDMI video input or passthrough	One HDMI source input, one HDMI ARC connection to the TV, optical input and USB 5 V/0.5 A for music playback and firmware updates; no eARC, 4K or HDR passthrough
Streaming
Streaming	Bluetooth music playback; no Wi-Fi networking, app or voice control (Heise)	Bluetooth stereo streaming; no Wi-Fi, AirPlay or built-in network music services
Design
Weight
Weight	1.8 kg (better)	2.2 kg
Controls
Controls	Five top buttons, supplied IR remote and LED indicators; TV volume control over HDMI CEC	Top-panel power, volume and source buttons; front text display, included remote with two AAA batteries, HDMI CEC and compatible IR TV remotes. No built-in voice assistant
Mounting
Mounting	Rear keyhole hangers for horizontal wall mounting	Included wall-mount brackets; optional SWA-9250S rear-speaker kit sold separately
Size
Size	Current maker table gives soundbar 89.99 × 5.46 × 8.18 cm and subwoofer 17.07 × 34.04 × 30.99 cm, W × H × D. Maker sheet rounds these to 90 × 5.5 × 8.4 cm and 17.1 × 34.1 × 31.2 cm, with bar 1.8 kg and subwoofer 5.2 kg; main weight is bar only.	Soundbar: 860 × 59.4 × 75 mm and 2.2 kg. Subwoofer: 184 × 343 × 295 mm and 5 kg. Dimensions are width × height × depth; 9 kg set weight includes packaging
Colours
Colours	Black; Signa S2D has a different fabric finish with the same specifications (RTINGS)	Black
In the box
In the box	Soundbar, wireless subwoofer, IR remote, two power cords, soundbar power supply, 1.5 m HDMI and optical cables and literature (maker sheet)	Soundbar, wireless subwoofer, remote with batteries, two power cords and wall-mount components; HDMI and optical cables are not supplied