Couldnt really find any other retailers selling this, best I found was sony selling it $629 without the subwoofer
Key Features
Speakers
-2 x 145W floor standing speakers
-2 x 100W bookshelf speakers
-1 x 145W centre speaker
-Front speakers feature wide dispersion super tweeters
-Bass reflex enclosures for distortion free low-end sound
Subwoofer
-1 x 115W amplifier subwoofer (6 ohms, 80Hz, 10% THD)
-Speaker and line level inputs
-250mm foamed-mica cellular reinforced woofer
Speaker Type - 5.1 Speaker Pack
Finish Colour - Black
Channels - 5.1
$440 on ebay http://www.ebay.com.au/itm/SONY-SSCS310CR-1-way-2-driver-Sur…