Tenore is not neutral, like I said, look at the scale in that graph, and the low end. My impressions reflect the graph, Tenore is warm and since it's warm, it creates a more noticible sound stage than my CK-10 which has more details and brighter, but more neutral with less warmth.
Sorry guys, I don't have the ER4 to do comparison. I will be getting number of DAPs for comparison to hear which I like best.
You may not agree, but I have heard a lot of "reference" "neutral" earphones and have two very neutral phones in my hands right now, the hd580 and the er4s, doing extensive a/b comparisons. My set of tenores is as flat, if not flatter than the hd580 series sennheisers and the er4s. If you don't think any of those are flat then fine, but I believe they are extremely flat compared to everything out there, and my tenores match or beat them overall. If you didn't get a good set maybe you need to try another pair. I have absolutely no bass boost. My bass is like the er4s if it graphed perfectly flat in the sub bass.
Just to give you an idea of how critical i'm being, I used to EQ the hell out of the er4s. I EXTREMELY familiar with its frequency response. I was literally making 0.5db EQ adjustments to get it sounding perfect to me based on graphs. But whether someone prefers that or not is besides the point. The point is that I was extremely familiar with every nuance of the frequency response of that pair. My tenores sound identical to the er4s from 100hz up to 10khz. If you put a high and low pass filter on both pairs I would have a hard time knowing which was which (other than the physical comfort). The tenores however, extend up at least another 2-3khz easy for me and the bass doesn't have any 5-7db drop from 50 to 20hz. Instead very apparently neutral (I don't have a graph to verify, but judging by my familiarity with these other neutral phones). As I'm very critical of frequency response and familiar with these neutral sets, I would know if I heard even a few db high bass boost.
Maybe I lucked out, but if you hear otherwise, you're either not getting the same fit or you have a pair that sounds different like gnarlsagan did. So everything i'm describing is real, but maybe you need to try a different pair. That's all I can say. You can't say "the tenore isn't neutral". You can say "your" tenore isn't neutral. Same for me. "My" tenore is neutral. If it isn't than nothing is. It is the closest to perfection I've ever heard so far. If we do have varying pairs that would explain the difference, but even then it would have to vary a lot for someone to say it isn't even neutral in nature. Anyway, you could simply say some sets aren't neutral some might be or some are. I know for a fact mine is :-P And I recommend people try them with the hopes they get a reference pair. If they don't, they should try another pair or two. If they aren't into that, then that's understandable, but I think it's worth it if you can get a reference set.
The 580 and tenores side by side being a/b'd:
HD580: very flat overall, almost perfect mids, a little low on the lowest sub bass, which isn't bad and a tad uneven in the high treble.
ER4S: Not the best sub bass, good mids, a but of a bump and dip in the upper half, but overall pretty level on average.
Edited by luisdent - 5/31/14 at 4:29pm