Bose Solo Soundbar for ~$280 Delivered @Microsoft Store includes Express Delivery
Next cheapest I see is at Myer's for $329.
It is a part of 20% off speakers sale at MSFT Aus Store:
"
Save up to 20% on Bose and Beats speakers - terms and conditions: Offer valid from 12.00am AEDT on 24 December 2016 to 11.59pm AEDT on 3 January 2017. Offer is available while supplies last. Available in Microsoft retail and store online in Australia only. Not valid on prior orders or purchases; cannot be transferred or otherwise redeemed for cash or coupon code(s). Not combinable with other offers. Refunds will take into account the discount. Price discount does not include taxes, shipping or other fees. Void where prohibited or restricted by law. Microsoft reserves the right to modify or discontinue offers at any time. Limit of 3 Bose Audio products per customer. Offer excludes new release Bose Audio products.
"
Website said they are out of stock…