elmegil's Journal: impedance matching (NO BLOODY SPEC!)

I'm trying to figure out the best headphones to go with my new palm lifedrive. The ones I have lying around at home sound like crap, particularly for audio books at 160kbps. I'm sure part of it is the quality of the output circuitry itself (lots of complaints around the net), but I also want to be sure I'm at least getting the best that's possible with it.

Palm's support website has nothing, the docs for the unit have nothing, googling for "palm lifedrive output impedance" gets me nowhere, and I don't have a plethora of headphones with known impedances to test it with. Anyone know/have suggestions where to find?

Do an experiment

[Quantum Jim]

get sound files of exponentally larger frequencies at a specific volume. Then record the output amplitude. That will give you a Bode plot of the Palm's frequence response. Then all you have to do is find speakers with a simular or better response.