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Archimago's Musings: MEASUREMENTS: Sennheiser HD650 (~2010-2012) and HD800 (~2010). A comparison of two "Reference Class" headphones, and a look/listen to the "Sennheiser veil / darkness". [Inexpensive 2TB SSD and inflation in consumer electronics...]
Thick Foam Ear Pads Cushion For Sennheiser Hd 580 Hd 600 Hd 650 Headphones Perfect Quality, Not Cheap Version - Protective Sleeve - AliExpress