I will gladly share my opinion and hopefully help out.
I must say that I am very impressed with it - it is by far the best headphone that I currently have and it is for a reason. I think that this headphone is meant for mid-range heavy music, vocals and instruments sound gorgeous.
If you don't feel like reading the wall of details below, in short, Moonstar's review is accurate for the most part
The overall bass response is very well balanced. However, the sub-bass does indeed have less quantity and definition than the mid-bass (which I much prefer than vice versa - when sub-bass dominates mid-bass). Mid-bass has full-body, is very fast/tight, and is clean. The bass is very
elegant, that's the best word I could use to describe it. It doesn't tire or fatigue your ears, maybe "moderate" would be a better word?
The mid-range is where I believe the selling point of the SR2 is. Moonstar very well said that it is slightly forward. This is not a V-shaped headphone, so the bass does not get in the way of vocals or the overall mix... finally a headphone that you can enjoy something else besides electronic music. The lower mid-range sounds very good due to the bass extension - instruments like piano's or cello's (strings) benefit from this extension and it really contributes to the great timbre that SR2 has. Due to the mid-range being slightly forward, vocals sound great (both male and female). I also think the upper mid-range is well refined, as though it stays away from sibilance, but also remains a great amount of detail.
I personally am having a hard time taking them off of my head, just hours and hours of pure music enjoyment. Guitar plucks can be
felt which is always pleasant to hear. Violins have the emotional character when they hit higher notes and peaks - they are not rolled off which is a characteristic from warm headphones. Pianos can be also felt with the help of the lower-frequency extension. I think SR2 holds a very good resolution.
Treble is clear, it definitely has the capability to deliver sparkle. It is well-tuned and balanced just like the rest of the SR2, but it is tuned in a way that never gets fatiguing - but also never gives you the sense that it is warm or rolled off. I haven't felt the absence of the upper-end, it does not sound like it is missing.
Just speaking straight from personal experience with the SR2, I think it is worth it. I have spent hours listening to Pink Floyd, Led Zeppelin, Daft Punk (Tron Legacy score has been on repeat), Joan Baez, The Alan Persons Project, Nina Simone, Gloria Gaynor, Deep Purple, and many more. While with other headphones I usually listen to test tracks to hear the sound characteristics of that headphone, with SR2 I have actually been listening to the music that I personally enjoy. With no other headphone have I been playing this much vocal and instrument heavy music - I think so many headphones below this price point are stuck in the V-shape zone that it is truly hard to fully enjoy some gorgeous records. I see the SR2 as a headphone that you can put on your head, play your favorite compositions and tracks, and have a glass of wine - and this is exactly how I have been enjoying it.
I am not somebody who follows or creates hype - I actually went into listening to this headphone with no expectations, I completely overlooked the whole discussion on here, but I was not disappointed. I find it very intimate and capable, in fact, I can safely say that SR2 is currently my favorite headphone. I think that the main reason why I enjoy vocals and instruments this much is because the bass response is much more balanced and refined - it is not overpowering or distracting, which lets you to completely focus on the mid range and details form the upper-range. Needless to say, SR2 is addicting to listen to, and I have been listening to music more than ever - but most importantly, I have been
enjoying music.. which is something I haven't done in quite some time. I cannot deny that SR2 are a perfect match for my personal taste.
I also want to add that the stock pads are pretty damn good. I had no discomfort even after 2-3+ hours of them being on my head. They do get slightly warm, but I had no sweating issues or anything of that sort. The pads are thick & soft. I have some Dekoni Pads that can fit them, but I didn't give them a go yet.
I hope this helps in some type of way. I have my full review on the way, and I really hope I can finish it by the end of the month. In the write-up above I used no examples, so I don't know how much the used terminology helps. In my full review I have reference tracks that describe why and where I hear these sound qualities, so it is much easier to follow
@Mhog55 @jamato8 Here is the link:
https://moonstarreviews.net/ibasso-sr2-headphone/