Excerpt: Elegant design, lightweight, comfortable headset, easy setup, intuitive controls, quick charging $ great battery life, digital surround and long range. What more could you want? HDMI? Sure, for several hundred dollars more...<br />Hooked up to a high-end tv, a/v receiver, dvr, blueray player and apple tv, these do well enough to make the speakers - though perhaps not the subwoofer - superfluous. Good job, Sony!
Pros: Comfortable, Great Sound, Lightweight, Stylish
Summary: The Sennheiser's and the Sony's both sound great they have a lot of punch and crispness. Sennheiser specializes in headphones and microphones (I understand), so the RS 170's have the signature sound of the excellent Sennheiser products. They do not disappoint in terms of audio listening quality but then neither do the Sony's. The amp in the Senheiser's seems a bit more powerful (picks up signals faster) than the comparably priced Sony's.
Pros: great sound with excellent frequency response, with both analogue and digital input
Cons: sony does not allow you to buy stand alone headphone to use with the base station
Summary: I think by 7.1 it means using the virtual sound technology to upmix either 2.0 stereo sound input or 5.1 channel sound input to 7.1. I don't think SPDIF supports 7.1 sound. I have ordered it and we'll see soon. Let me put five star for now.
Summary: far better than i expected,plugged sraight into my tivo box via optical out,and watched a film in dolby digital,it was nearly as good as a full 5.1 set up,also headset is very comforable to wear for hours.i can realy recomend this product.