The Watercooler-- Impressions, philosophical discussion and general banter. Index on first

That’s not true. Here’s a reviewer I like.

Watch what he says.

Moreover, Andrew also criticizes it’s tonality.

https://www.headphones.com/communit...-hd820-review-flagship-closed-back-headphones

“Tonality and frequency response is where the HD820 falters substantially. This is one of the strangest sounding headphones I've heard in a long time - at least as far as overall tonality is concerned.”

But the above data are beside the point. I have heard and reviewed them myself, and this is my own reading.

I doubt it was a defective unit since it was at Sennheiser’s HQ.

Here’s the FR.

I am not a stickler for FRs but the 820 sounds as wonky as it graphs.

Sources: Sony DMP-Z1 | Sony WM1ZM2 | Brise Tsuranagi Transducers: Campfire Trifecta + Effect Audio Centurion | Dita Perpetua + Dita Celeste | Aroma Fei Wan (Incoming) + PW Audio Orpheus YT Channel: Amplify Audio Show