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Polk Audio Signa S4 review: One of the best bang-for-buck soundbars you can get
Feb 21, 2025
Hi-fi newbies need to get a load of this
Tom's Guide Verdict
While $400 is a pretty chunky amount of money, many of the best soundbars go for double that, if not double again. Enter the Polk Audio Signa S4 soundbar, which offers full 3.1.2 channel Dolby Atmos surround audio, three listening modes, and a patented ‘Voice adjust’ setting.
The three listening modes include cinema mode, which does what it says on the tin, night mode, which reduces bass for late-night listening, and music mode, which can be used for music playback or musical movies.
The Signa S4 has a wireless subwoofer, which only needs to be plugged into a power socket to connect to the soundbar. The external subwoofer makes way for almost ‘true’ Dolby sound, with layered, cocooning bass, and the soundbar’s upfiring speakers do the rest of the legwork. All things considered, $399 is a very reasonable sum for this soundbar + subwoofer combination. So what else can the Signa S4 do? Find out in this full Polk Audio Signa S4 review.
Polk Audio Signa S4 review: Çheat sheet
What is it? A soundbar + subwoofer combo
Who is it for? Movie lovers, TV bingers, newbies to the home cinema world
What does it cost? Seems like a lot but it’s not — $399 / £329. Other hi-fi setupts start from upwards of $1k for a subwoofer + soundbar combo
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