I am using the new Sansa clip plus with UE fi.3 and at times Koss-KSC-75's Would I benefit from using an amp with any of the two headphone choices? I was thinking about getting a headroom portable....

I am new to the headphone amp world and am thinking about getting a protable amp for my minidisc player. Is there a big difference between the sound quality in the new airhead and total airhead? I am wondering if I should invest the extra $50 dollars for the Total?

Can anyone tell me the place with a low price on the Rega EAR. The lowest I have seen so far is $195

Is there anyone using the Headroom Airhead (new model) for home use?. I have a pair of Sen 540II's and was wondering if it has the power to drive them. Also I am thinking of getting a pair of Grado 125's and was wondering if they would sound good with the Airhead. I would rather not buy portable...

Does anyone know what the specifications are on the headphone out for the sd-sg11 (Sharp 1bit). I know it is 10 - 50 ohm's (recommended 32). There is no mention of mw output. I was wondering if the output was any good and could power my Sennheiser 540II's. If not would the Grado 125's be a...