Hum does your O² have Internal Batteries ?  I got something similar only when batteries were runing low , but yours can be defective after charge / decharge cycles ?

  Xasthur  haaaa nice nice exemple ,  let's say a To Violate the Obvious with a "clear production" , would have been something totaly different , perahs i wouldn't like it as much as it is ...   I tend to like many of this "poorly recorded" albums (mostly on Black Metal , sometimes they even...

User name : HaVoC-28 Some colaboration with Audio Technica , to re-realease the old AD2000 without 3D wings :o . (Or some woodies spécial massdrop like it was done with fostex) .

Again , another headphone on my inventory that the O² drive perfectly fine : HE-560 . (1X Gain and - 10 dB on Foobar , 12o clock for the volume pot) . I don't know why i was expecting that it woulnd't be the case , peraphs read to much BS about orthos "requirements" .   Almost all headphone i...

  Thanks for your opinion about Metal and Headphones , was fun and interesting to read . But you forget something , Metal will not like or hate emphasized treble or what ever , it's only down to the listener preferences who will choose what they want to hear :p .   Currently i enjoy all of...

  O²/ODAC (separate units , always better )  ODAC pros : output Voltage : 2.0v (same as standard redbook CD player output voltage) ,  USB auto Powered   .  Minus : More expensive or no spdif inputs . O² :  Can run from batteries if needed , so you go anywhere with a laptop , that will power...

Also Modi 2  + O² , it will work too   . Or Modi 2 Uber if you need spdif Input . But With Modi 2 as DAC , as the max Output power is 1.5v , Gains should be something like 1.5X for low gain , and 4.5X for High Gain .

  He had a bad experience (Clipping)  with O²/ODAC ... And didn't tried to know if it was a faulty unit or not,  blaming O² being a bad disign and returned it and jumped to Schiit Stack .   Because Clipping with an HD650 ... unless mismatch Gain or defective unit i don't see how at safe...

  Cause their are people that like brighter headphones , even if their is some sibilance depending on the recording ?

  The O²/ODAC are more than 3 years old now : / , and no one would have discovered O² clipping at 1x yet ? . Yes there is a clipping issue that happen only  when you exceed  7 v . At 1X with ODAC providing around 2.03v you can't possibly get it to Clip .   Something is clearly wrong with your...

So you are the first one here that come with clipping issue at unity gain and claim that the problem come from the O2 disign . Sometimes there is deffective unites or wrong assembly like a resistance that is not correct etc etc .   Then at witch stage the O² clips , with witch recordings to...

I don't , my O² will celebrate his third year next month and it didn't harm any of my headphones .   There is a little hump when switching off but nohting to bother with .

  Hum , i don't like to say that a particular album is the best for an headphone , depending on my mood i can enjoy an album on my DT 880  , the next day i will have equally great time on this album with the HD600 or K702 (but i have to say that most of the time the naturalness of  HD600 give...

  Yeah , many early/mid 1990's black metal productions are on the thin side ... weak on the bass depatement for a colder/dryer and airier sound that hurt like a cold blizzard . 

  It will go even lower near Christmas .