Unfortunately, when you start to get to some of these really good earphones, you can literally destroy their capability by using poor equipment. If you run a decently compressed audio file through a mediocre playing device and off mediocre wattage, you will very much get a mediocre presentation. Crappy earphones can't produce a good enough sound to get better with better hardware, but good earphones can and do scale well to the quality of the source material and hardware used. You pretty much are forced to run high bitrate or lossless recordings, a good DAC, and decent amperage to just get a good enough input to actually see what the earphone is really capable of.
The TF10 doesn't need much wattage to run. It really has very little need. However, if you run a really weak source, you will always run into problems. An example is the UM3X. Off my laptop's line out it lacks the wattage needed to output bass well. Bass notes are muddled and incoherent at moderate output levels. It's just a mess of noise. Once amped, the bass snaps together and everything is clean, separated, and meaningful. I bring up the UM3X because I don't see nearly as much impact off low wattage from the TF10.
The TF10 has a thick and in some perception veiled note. It is encompassing and enveloping, not open and airy. This won't change from better amperage.
The gains you will see are pretty specific. A better audio track, a better source, and better amperage will give you key benefits. These benefits are improved dynamic range and energy of note, better control and separation in low frequencies, improved clarity, detail, separation, stage presentation from the better audio information and player device processing. The gains can at times be somewhat dramatic. Some earphones are more sensitive to what you use. Some are not. Good examples of earphones that scale well are the UM3X ( and most likely the W3) and the RE252. I personally don't feel the TF10 scales a lot. However, it does have outstanding upper frequency clarity and will scale in the quality of sound along with the quality of the source information. Because it is bright and detailed, it will be more glaring in showing you bitrate compression and glitches in the audio. The bass is prominent and with good power and will scale to some degree off the power available.
I really wish I could afford a Predator right now... How much has it the increased bass? I find the triple.fi VERY bass shy and I hear RSAs are bass happy amps 
. I haven't got the slightest clue how some describe the TF10 as having a V shaped response, its just treble with recessed mids in my opinion. Hah, sorry, Im really liking the emoticons. 
