The Signa S2 is the budget tier of this round-up. Polk's VoiceAdjust delivers dialog clarity comparable to the Signa S4 at a third the price, and the wireless 5.25" sub gives it real low-end despite the 2.1 layout. The compromises are predictable: no Atmos, older HDMI ARC, Bluetooth-only streaming. For a first soundbar upgrading from TV speakers, this is the entry point.
Strengths
- +Cheapest pick in this round-up — frequently under $200
- +Wireless 5.25" subwoofer included
- +Polk's VoiceAdjust technology for dialog clarity
- +Ultra-slim 2.2" profile fits under any TV
- +Dolby Digital 5.1 decoding for surround content (downmixed to 2.1)
Watch-outs
- −No Dolby Atmos support (virtual or real) — 2.1 only
- −Older HDMI ARC (not eARC) — limits high-bitrate audio passthrough
- −Bluetooth only — no Wi-Fi or streaming app integration
- −Subwoofer is bigger than the Yamaha SR-B40A's but lacks deeper extension
How it compares
Cheapest pick by a wide margin. No Atmos (real or virtual) — Samsung HW-B750D simulates with DTS Virtual:X, Vizio M-Series 5.1 and Yamaha SR-B40A virtualize Atmos, and Polk Audio Signa S4 has real upfiring. Same VoiceAdjust dialog tech as the Signa S4 at a third the price.
Who this is for
At a glance: first-soundbar buyers upgrading from TV speakers who don't need Atmos and want the cheapest viable improvement.
Why you’d buy the Polk Audio Signa S2
- Cheapest pick in this round-up — frequently under $200.
- Wireless 5.25" subwoofer included.
- Polk's VoiceAdjust technology for dialog clarity.
Why you’d skip it
- No Dolby Atmos support (virtual or real) — 2.1 only.
- Older HDMI ARC (not eARC) — limits high-bitrate audio passthrough.
- Bluetooth only — no Wi-Fi or streaming app integration.
Rating sources
Our 4.3 score is the average of these published ratings. More about methodology.
