Sennheiser HD6XX Open Back Professional Headphones - Black

Product Information

This second coming of the HD 650 was actualized in the Massdrop x Sennheiser HD 6XX, the result of a collaboration between the storied audio brand and the “audiophile” subset of Massdrop’s commerce community that have proven extremely popular — so popular, in fact, that the company is still selling them years later.

While the most affordable in the line, it features silver-clad conductors, low-strand count and a PTFE (Teflon) dielectric, giving it a forward and detailed sound signature. I’ve heard people say the 600 and 650 can sound “veiled”, but they sound much more airy and open to me than the 660s. It has good upper treble extension till 20kHz with one prominent audible peak presenting itself at around 15kHz but it isn’t the most sizzly, revealing or airy upper treble. The main problem is I feel like the back of the left headphone touches my ear too much or just fits in a way I need to fuss with.The mid/upper bass gives them a bit more warmth, to speak of absolute neutrality, but this makes the mids more musical and gives them a natural sounding timbre. For the most part I’ve narrowed it down to these 2, the Sennheiser HD6XX and Beyerdynamics DT990 Pro but I can’t pick between them.

That is one of the main reason I bought them as well, they were something tons of others have tried and I could compare my opinion to theirs to get a good internal reference. I could drive it to a decent level with my Oneplus 7 Pro phone and MacBook Pro laptop by maxing out the volume but it sounded much better with my DAPs and audio interfaces. More than a decade after debuting, the HD 650 have gotten a refresh (sort of), and you might even say they’re better than ever.If you’ve never tried an open-back pair of headphones before, the Massdrop x Sennheiser HD 6XX are going to blow your mind.