Recently I say a 10-year-old Sony D-555 portable CD player sell on eBay for $380. No accessories not even the original AC adaptor. Obviously someone felt this PCDP used was worth a lot more than any new PCDP on the market today. In fact, it seems to me that the only area in audio that declines...

The Cosmic is my third headphone amp, preceded by the Total Airhead and Maxed Out Home, both which I still own. I remember when I first got the MOH and test drove it with the HD600 headphones. I guess “blown away” would be an appropriate phrase. The bass really improved while the overall sound...

I’d like some input from members who use, or have used, both the HD600 and SR325 headphones. It seems a lot of members own both headphones, and I was wondering why both. I’m not looking for recommendations and I don’t want to start a spitting contest between Team Sennheiser and Team Grado. What...