Summary: The ear pads measure 5x6.5 cm and are simply vinyl-covered foam pads, not ear-surrounding casing. I wanted over-ear headphones but it was my mistake because it doesn't mention the measurements in the product description. Because they are just on-ear headphones there is a lot of sound leakage in and out. They are more stylish than functional.
Summary: Lets start off by saying that sound is a very subjective thing. What one person like is not necessarily the same as the next. So lets do this properly. I have and have had for 20 years a set of Sennheiser HD25 Pro's which I use for monitoring and DJ'ing. These are almost an industry standard in this field and is what I will compare these JVC HA-S650's to. I got the JVC's in exchange for my year old AKG k450's (I loved these) which developed a fault.