I have a 8 gig Sansa Clip with the newest firmware, and for me the player is still too loud on the lowest volume level with InEar-headphones on actual, highly compressed recordings. It would be great if you could add an additional “low” volume-preset. On older recordings the volume ist perfect. I don’t wat to process all my files on the player with mp3gain, and i don’t want to use an impedance-adapter.
I’ve had this same problem also. The easiest thing to do would be to buy a pair of headphones with a volume control built in. But, hopefully, when Sansa releases a frimware update it will lower the volume some. (I don’t know if that is possible, but it seems like it should be pretty easy.)
Which brings to mind: you could add a pocket amp to get the sound down further. For under $20 shipped, the small FiiO E5 amp (smaller than the Clip) is a nice choice, with its own volume control, plus on-off switch, bass enhance, rechargeable battery, and clip. At dealextreme.com and mp4nation.net (with coupon codes in its forums) at good pricing.