With just a few phone calls and emails, I've managed to get my hands on the amazing Stax SR-009 headphones, and some of the world's best electrostatic headphone amps and the gear to make use of them, and set them up my demo room for a week of comparative listening.

Quite the ear opening experience!

With about 27% of the population over age 50, and roughly 30% of all headphone purchases influenced by celebrity endorsement, I can understand why Koss turned away from the heavy competition for the younger generation's wallet and focussed their attention on the baby boomers with the introduction of their Tony Bennett headphones. Personally I prefer Tony Bennett to Dr. Dre, Ludacris, and 50 Cent, but I'm not sure the geriatric headphone buyers are really part of the 30% of purchasers who are influenced by celebrity endorsement.

Let's see how they sound.

I've got an open invitation to visit Skullcandy's headphone R&D labs in Park City Utah ... and I'll be taking them up on it sometime soon. Why? Because I want to see what they're doing that let them build a few darn good sounding headphones lately.

The Mix Master is one of them.

Bob Marley's "Exodus" ... wow, what a great album. I must have heard it a thousand times. It's a total classic. Prior to receiving these, I wondered skeptically if Bob Marley "Exodus" the headphone would be a classic. Time will tell ...

... but I think they're off to a good start.

Surprisingly satisfying!

It's not often one get's to set-up $37,000+ worth of the world's best headphone gear on the dining room table. I should do a little comparative listening test and report my findings, methinks.

Wasn't easy to write with all the good music going on in my head, though.

A classic in the world of professional and enthusiast headphones, and probably the world's most popular DJ headphone, the HD 25 has remained in the Sennheiser line-up in a small variety of incarnations since 1987 ... and deservedly so.

When I first heard them about 15 years ago there were very few expensive headphones available, so they seemed pricy at the time. They sounded great though and were a solid recommendation. In today's world of high-priced fashion headphones, and even higher priced high-end headphones, these very good sounding and highly functional cans seem like a real bargain for professional and audio enthusiast alike.

Let's take a look at the latest incarnation, the Sennheiser/adidas HD 25 Original.