Excerpt: I am a drummer, and because I have a problem with earwax buildup, I wanted to stop using earplugs and IEMs. So, I was looking for some circumaural headphones which could serve the same purpose. A lot of typical earplugs claim noise attenuation of ~30 dB, and my Etymotic IEMs claim 35-40. The DT770M claims 35 dB, but unfortunately this doesn't work at all. They don't even come remotely close to isolating as well as even the cheapest foam earplugs, rendering them useless.
Cons: Poor isolation, Poor Sound Quality, Pricey / Poor Value
Excerpt: I am a music producer, studio audio engineer, audio for live events and I have the DT770 Beyerdynamic for many years, and are an excellent reference but for the live recordings I need an excellent reference but with good power. I thought the Beyerdynamic DT770-M would sound very similar to traditional DT770 but was very disappointing to hear, I had to change and invest more for an Ultrasone PRO 900
Summary: I am very happy with these headphones so far! I have cleaer sound from high to low and extra bass for electric drum set bass, is NOT an issue. With other headphones I did have some trouble seinheisser and NADY were, for the model I had not enough volume or range. Nady qh360 and Seinheisser HD210. I have no comlaints as of yet. I am sort of in shock regarding how something so small and light can pack so much range and power.
Excerpt: [...] I bought these headphones after reading the stellar reviews on this and similar websites (the independent volume control really sold me). As I took them out of the box I noticed that they felt light and cheap. The foam earcups were deformed, and not nearly as dense as I had expected.
Pros: Volume Control
Cons: Cheap construction, No Isolation, Poor Sound Quality
Summary: Description: The Beyerdynamic DT770M is an alternate version of the popular DT770, with supposedly strong isolation for use by drummers or monitoring in noisy environments. Physically, it is the same as the other DT770s, only with black cups, pleather earpads, and an in-line volume control. Concerning the pads, they are much shallower than the normal velour ones.
Pros: None whatsoever.
Cons: Poor isolation, even though that's their whole purpose. Even poorer sound.