Sorry I haven't posted anything real yet, I haven't used the Glacier and RS1 as much as I thought I was going to be, been busy back in school, but over the last couple days, I've been putting in more time and all I can say is that whether its the DAC or the amp or the combo of them together, the RS1s just don't have the same life without the Glacier.
I cannot say which is providing the biggest gain because this is my very first DAC and amp. The RS1s do sound good unamped straight out of my iPhone 4, 2012 Macbook Air, and Sansa Fuze+ but definitely not as good as when plugged into the Glacier.
I will post later about the bass, treble, soundstage, and instrument separation I've noticed (all improved).
Overall resolution of songs: lots of lower quality music I have sounds horrible thanks to the Glacier's improved resolution and retrieval of details). I hear what the loudness problem of recordings even more now, the volume range available to listen comfortably with these tracks is tooooo small. Some music literally sounds compressed to me now. Like if you were squeezing it closer together with your hands. (Been hearing the bad mostly with <320 kbps) Good quality tracks sound great, details are more obvious. Computer/background noise more obvious when comparing to running unamped.
I do hear hiss but only when changing songs. I think its the RFI thats getting through, because it occasionally comes up during the beginning of a song and always goes away after a few seconds. Rarely will hiss begin and be heard during mid/end-song playback. My iPhone is rarely farther than 2-3 feet away from the Glacier.
Same amount of hiss using both my Klipsch s4 IEMs and RS1s, at any volume.
Like posted before, Grado RS1s + Apex Glacier = not too bright at all. Smooth to me.
This thing is freaking rad. Awesome form and function. I'd definitely recommend it! I don't like using my RS1s without it now and because of its super thin and slim profile, I think I'm going to start bringing it to daily to school with me just to use with my Klipsch s4's.
--- this was my 200th post!
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