Sennheiser HD 650 Over-Ears for $330

The open-back over-ear Sennheiser HD 650 audiophile headphones are currently going for $330 with free shipping by at Amazon.com (by Focus Camera and Precision Audio) and at B&H Photo and Rakuten (by Focus Camera).

If you are trying to decide between these and the HD 600, there are plenty of forum discussions to keep you busy for hours and hours, so there is no lack for data, but rather there is the risk of information overload and useful information drowning in a sea of chatter.