I remember all the fuss between the UE18 and JH13 at the time...
That Roxanne graph seems a little off, that much of a valley and spike at the upper mids and treble is unusual. There's a better one posted in the Roxanne thread.
The 846 graph agrees with my ears though.
I think the UE 18 Pro is relevant, even today. Once more IEM companies show up at the southern California meet-ups my mind may change regarding which IEM I think sounds great...but until then, the UE 18 Pro is pretty darn good.
There was a member who tried a K10, 846, Roxanne and UE18. He decided to go for the UE18. It's a very good IEM, but it's old and has lost its FOTM status around head-fi.
Yeah, it is flat, and I thought because of it's flat response, the sound was clear and very clean(this of course depends on the how clean the source is but the demo provided the AK240 which is a very transparent source). I sensed muddiness to the 18's sound. Some people like the extra boosts to certain frequencies to liven things up. I personally like to let the mastering output the way the sound was intended. I prefer flat phones and transparent soureces. There are phones that claim to be neutral, but they are not as they do not output the mastering with integrity. The real transparent setup I've heard will output dynamics when it's there. The problem with this setup is not all music sounds exciting because it's transparent and it's outputting the mastering quality. I have noticed this through AK240. Initially I was not impressed with the player because some music didn't sound very good. Certain type of pop music. Then I tried other genres, and I come to find out it's outputting the mastering quality. The player doesn't seem to be colored like majority that are out there so that compressed music sounds decent, and everything else sound in that level. With a transparent setup, the distinction of the quality of the mastering is very obvious. This requires lowest amount of color in the path as possible.
I like a painting with color.