Headphone amp for Grado 125's ???


My "private, in the leather chair, by the fireplace, with a single malt scotch" listening station consists of Grado 125 headphones plugged directly into the headphone socket of a surprisingly good sounding Tivoli Model CD player (please don't laugh....it really sounds way better that I would have imagined). A RadioShack adapter fits in between the 1/4" plug of the Grados and the 1/8" socket of the Tivoli.
I'm willing to spend ~$200 to improve the quality of this nice little set-up.......What are your suggestions for a headphone amplifier, and would one really make an appreciable difference ? You can see from clicking on my "system" to see my main rig (in a different part of the house) to get an idea of how I like things to sound.
Thanks a lot.
adam18
Thanks guys.........Does anyone have experience with the Pro-Ject Headbox II, the Creek OBH-11, or the new Musical Fidelity V-CAN ??
Stay away from the Singlepower amps. Do a search and see all the ripoffs and trouble his amps have caused. www.head-fi.org. he got me for $6K and i am lucky compared to some of his customers. i have recomended his products in the past but many things have gone wrong from poor build quality, dangerous materials, to out right theft.
I would buy some portable amp with USB/DAC option, something like GoVibe Petite or Magnum, great with Grado's. This way you can use with your PC based system + as portable.
Singlepower amps are not within my scope of consideration. My headphone set-up is a fun little livingroom listening station, and my budget is only around $200.