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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...]
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How to automatically EQ your headphones to online measurements: a step by step guide | Headphone Reviews and Discussion - Head-Fi.org
![I inverted my graphic eq based on Headroom frequency response graphs. . . does that work or am I way off? - Thread Gallery | Headphone Reviews and Discussion - Head-Fi.org I inverted my graphic eq based on Headroom frequency response graphs. . . does that work or am I way off? - Thread Gallery | Headphone Reviews and Discussion - Head-Fi.org](https://cdn.head-fi.org/a/2468144_thumb.png)