MP4Nation is offering a $40 off coupon for Brainwavz's flagship Dual Balanced Armature Earphones: Brainwavz B2. Originally $169.50 USD, now $40 off with the coupon = $129.50 USD with free delivery to Australia, which is approximately $132 AUD. The B2's are very well regarded, and one of the most affordable Dual BA earphones available.
Alternatively, they're also offering a bundled special with the FiiO E11 portable amp for $159.50, like their Facebook for a 5% off voucher to bring the total down to $151.2, ~$154AUD. The amp itself retails for more than $65:
http://mp4nation.net/catalog/summer-deal-brainwavz-b2-dual-b…
Reviews of the Brainwavz B2:
http://www.ifans.com/blog/28896/
http://headfonics.com/2011/04/brainwavz-b2-bargain-of-the-ce…
http://www.techmadeeasy.co.uk/2011/09/23/review-brainwavz-b2…
http://www.head-fi.org/t/566789/review-brainwavz-b2-dual-bal…
Reviews of the FiiO E11:
http://www.head-fi.org/t/552605/fiio-e11-the-initial-impress…
http://www.headfonia.com/fiio-e11-portable-amplifier/
Local prices:
http://headphones.com.au/psingle?productID=556
http://www.jaben.com.au/fiio-e11-headphone-amplifier/
wow that's expensive… how do they compare to the ones selling for $7 from logitech?