The Beyerdynamic DT 770 M is a professional, no-frills tool for convenient control and playback of music. The headphones show at every point that this is a proven product that has been continuously optimised over the decades and whose qualities are convincing in every respect.

Sources: iPhone4 alone, iPhone4 with FiiO E17 using LOD, various computers using Audioengine D1 DAC and the D1's headphone out. First impression of the Beyer DT770LE: Dark and slightly cavernous sound, and a bit crispy on the high end.

I bought these shortly after my Sennheiser 280 Pro's started cracking near the headband. They still work, but I'll keep them as my backup's. The Beyerdynamics include a completely different design than the more portable Sennheisers, but that's not really a bad thing.

Quality; sound; great brand name; unique style

Maybe too bassy for some; but not me

Drummer's...you HAVE to buy these headphones! If you want to save your hearing use these headphones. They allow you to LOWER the level in the headphones due to the 35dB ambient noise reduction. Whatever you are monitoring you can listen at a VERY comfortable level and still hear your kit!

Clear Sound; Easy To Use; Powerful; Professional Functions

- How long you use it? 7-8 months very regularly. - What is so special that you love the most, least?

Beyerdynamic has been known to produce some of the best headphones and microphones ever created for all types of professional uses. Their products range from Broadcast TV, to Hearing Aids, to Pilots, and also to DJ's.

The new Beyerdynamic DT 770 M, selling for $179.00 is marketed toward drummers and Front of House mix engineers because of its extreme sound isolation. It also includes a volume control on the cable. But are these the only changes to the headphones?