Three headphones for $500: Sennheiser HD 650 and BeyerD DT-990 PRO (250) and Audio Technica M30x

Amazon has another crazy three headphone bundle on sale again, matching their Holiday Shopping Season prices. For $500, you get three new condition headphones, from Amazon actual, bundled together. They are the open over-ear Sennheiser HD 650, the open over-ear Beyerdynamic DT 990 PRO (250 ohm) and the closed over-ear Audio Technica M30x. The bundle may also be of interest if you are planning to split the order between family and friends, as some people may not want to get two different open-back over-ear headphones at the same time. On the other hand, this would make a good comparison as you progress with both headphones at the same time.