Most of the Beyerdynamic headphones have problematic treble peaks that can sound very sibilant. I don't know if that is an artifact of diffuse field tuning or something else, but in any case-it is too much for me.Just bought a pair of DT990s. Im taking them back. They sound so bad they may be defective, theres a ton of high freq hash on most music. I cant believe this is normal. All the reviews I read were positive.
Yes, they have the HD 6XX for $199.99. This one HD 58x has the 660S's 150Ω driver but they added open cell foam pad behind the mesh and thin paper at the driver's basket opening for some more bass and a tad less treble. You can feel the exterior sounds getting quieter somehow like 3dB down vs fully open cans the moment you wear them on.
I listened to them vs the HD 600 on the DCG3 and on the smartphone. They are two clicks more sensitive on my 24 positions switcher volume pot than the 600 because of lower (half) impedance thus helping for louder volume on the smartphone too. Battery powered mass consumer devices are better in delivering more current than more voltage due to working from a low rail as we all know.
They are less wide than the 600 but more focused and smoother with more satisfying bass. Their stage is more contained but more coherent. My speakers showed that the balance of the 600 is more neutral above midbass but the 58x is nearer to correct in fullness from midbass and below. Fleshing out voices and guitars, delivering some bass thump. The speakers tonally draw a line exactly between them phones across the spectrum. The 600 is nearer in level and detail to the speakers HF but not as silky. The 58x midbass is bit more blown than from the speakers, its HF more reticent in level. Clarity is very good in both models. Stage and projection is different when comparing speakers to any cans of course, the speakers are more persuasive because in actual room space, but talking mainly balance now.
On my musically thinner bodied smartphone output the HD 58x locked a good overall synergy and it was driven to a point that it could be called loud enough, but clearly below solo partying levels, where with the 300Ω HD 600 cans the smartphone (OnePlus X) was just enough to lets call "conservative tastes" in drive and max volume for casual listening.
THis is exactly the type of commentary I was looking for. As a result, I might also be looking at the Hiifiman Sundaras, even if they are open back. The AKG K371s also look intriguing at 1/2 the price.