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Check the price before you buy
Polk Audio Signa S4 Soundbar with Wireless Subwoofer
Check the current offer and price history before you buy.
Polk Audio
Amazon price
$674.10 at Amazon now.
Usually goes lower, to $499
Full price $749 · Usual sale price $499 (across stores, last 12 months)
Last Amazon price check: 14 Nov 2026. Amazon can show a different price today.
Price as of 14 Nov 2026, 9:34 am AEDT. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com.au at the time of purchase will apply to the purchase of this product.
What these prices mean
Full price: the current Amazon price when the item is not on sale. Usual sale price: the lowest price that came back in at least two separate completed sales across stores for this product in the last 12 months. CraigSaves saw 2 sales at $499 or lower. Sources: Amazon (2 sales). Each store uses its own confirmed full-price period. A lower price in only one sale does not count. Amazon shows a was price of $749. That is a Amazon claim.
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Check here before you buy a “sale” item
A sale price is only a deal if the normal price did not go up first. CraigSaves records each price change at Amazon, and checks 14 Australian stores in total, so you can see the real history.
- 218,235 Products price-checked this week
- 25,732 price drops this week
- 14 stores