Polk Audio Signa S2 Ultra-Slim Sound Bar
Today
Typical price$349
Amazon: the cheapest today among the stores checked
Buy on AmazonPolk Audio Signa S2 Ultra-Slim Sound Bar or Yamaha SR-B30A Dolby Atmos Sound Bar?
Cost the same today, across the stores checked.
Polk Audio Signa S2 Ultra-Slim Sound Bar is the cheaperYamaha SR-B30A Dolby Atmos Sound Bar is the cheaper
The comparison in detail
Yamaha SR-B30A Dolby Atmos Sound Bar
Today
Typical price$349
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 07/11/2026
Signa S2 Ultra-Slim Sound Bar
- Amazon Lowest price$349Buy on Amazon
SR-B30A Dolby Atmos Sound Bar
- Amazon Lowest price$349Buy on Amazon
Spec sheet side by side
| Item | Signa S2 Ultra-Slim Sound Bar | SR-B30A Dolby Atmos Sound Bar |
|---|---|---|
| Specs | ||
| Type | With subwoofer | With subwoofer |
| Dolby Atmos changes | not listed | Yes |
| General | ||
| Model changes | Signa S2 Ultra-Slim Sound Bar | SR-B30A Dolby Atmos Sound Bar |
Other comparisons
Signa S2 Ultra-Slim Sound Bar orAmazon Fire TV Soundbar Plus (newest model)$330Compare
SR-B30A Dolby Atmos Sound Bar orJBL Bar 2.0 All-in-one (MK2): Compact 2.0 Channel soundbar$347Compare- Signa S2 Ultra-Slim Sound Bar orJBL Bar 2.0 All-in-one (MK2): Compact 2.0 Channel soundbar$347Compare
SR-B30A Dolby Atmos Sound Bar orPolk Audio Monitor XT35 Slim Center Channel Speaker (Midnight Black)$350Compare- Signa S2 Ultra-Slim Sound Bar orPolk Audio Monitor XT35 Slim Center Channel Speaker (Midnight Black)$350Compare
Signa S2 Ultra-Slim Sound Bar orSony SS-CSEM2 Dolby Atmos Enabled Upfiring Height Speakers (Pair)$328Compare
See more 1 comparison
How we choose
Source: Catalog of partner stores, checked on 07/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the soundbar; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure how it sounds or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.