The Sennheiser HD 280 Pro headphones can be bought in a multitude of electronic online retailers. The most popular ones are Amazon, Sennheiser's own website, Newegg and Sweetwater.
Sennheiser HD 202 Headphones can be purchased at any of the following retailers: B & H photo, Sweetwater, Amazon, Ebay, and the official Sennheiser website,
Yes, they are incredible. I've owned one for quite a few years and it is as good as it was when I bought it - superb.
Sennheiser HD 515 headphones don't have true noise cancellation so that they do allow in outside noise.
The best headphones for listening to drums are those with good bass response and clear sound quality, such as the Audio-Technica ATH-M50x or the Sennheiser HD 280 Pro. These headphones are designed to accurately reproduce the low frequencies and dynamic range of drum sounds.
Sennheiser HD-202 headphones can be found online for about $30. Sometimes they can be found as low as $25 or as high as $40, but $30 is a common price.
As far as design, the Sennheiser HD280 Headphones offer rotating ear cups padded with pleather for comfort. Up to 32 dB of ambient noise attenuation and neodymium magnets for high maximum SPL are a couple of features that show off the headphones' technical side.
They are decent for the price, but in my opinion they are ugly.
Sennheiser HD 25 are noise reduction headphones. They are most often used by DJ's as it is important for them to hear the music first hand instead of muffled by people.
Sennheiser HD 650 headphones can purchased for approximately 500 US dollars. These headphones are available online on Amazon, Head-Fi, eBay and bass & Headphone.
Sennheiser 202's Mark II, I don't own them but they have many good reviews, I own these and they are brilliant! Sennheiser HD 555
Here's my background info: I'm choosing between fiio e5 or fiio e1. I mainly listento death, black and thrash metal. My headphones are sennheiser hd 280 pros. And my music player is an iPod.
Headphones that sound the same as Beats but relatively cheaper are Sennheiser HD 202 II Professional or Sennheiser RS120.