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I would actually go as far as saying that the RE2s have what resemble a
more earbud like presentation when it comes to sound stage. The
instrument separation is far better than that on most conventional
in-ears. All of this completely caught me off guard I was not expecting
these to be so different from what I am used to, and I certainly did
not expect them to outperform some in-ears that cost twice as much. The
treble and bass extension with the RE2s is not as good as that of the
Sleek-Audio SA6s. The SA6 clearly wins when it comes to the high tones
and the presentation of classical pieces. The RE2s have a good and
smooth treble response it just has a more noticeable roll off than that
of the Sleek-Audio SA6s.

To me the RE2s are ideal for most people who listen to rock music
because of their incredible midrange reproduction. For the money I
think you will have a hard time finding any real rivals to this
earphone. It provides an extreme degree of detail and has above average
bass reproduction. The only performance aspect where these earphones
fall substantially behind the much more expensive offerings is the
treble extension, they cannot reach the extreme high tones without
sounding a bit odd.

These earphones are quite demanding when it comes to sources, so if you
have a DAP with lower than average output rating I think you will need
an amp to drive them the way they deserve. If you use them along with a
MP3 player with a good output stage they will sound incredible.

The bass on these earphones is really good and well controlled for the
price. It does not go quite as deep as the UM2s or the SA6s, but is a
bit more present. The bass is really good for a pair of earphones that
only costs $80!

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