No, I don’t mind at all Shane. The four headphones I have left are : HD600, HD650, Beyer T1 Gen1 & Beyer DT880 Pro/ 600 ohms. Now to answer your question about comparing the GS1000i’s sound compared to the ones I’ve kept.
Before I answer directly, I must specify that unlike the majority of audiophile members on Head-fi, I’m not a purist in the sense that I use tonal adjusters : the Schiit Loki &/ or, the JDS Labs Subjective3. Not only that but my vintage amp, Kenwood KA-8006, 70wpc [1974] also has tonal adjustment switches and knobs & I double up with the Loki or Subj3. It’s a manual adjustment since I listen to CDs.
The GS1000i is one of the best headphones I’ve owned and I love it’s main quality which is, it’s very detailed and clear, two of the qualities I look for and which I prefer. Now, contrary to popular opinion regarding the HD650 sound as being veiled and dark, I do not share this impression/ opinion at all whatsoever. With my set up and tonal adjustments the HD650 is quite revealing even detailed with full body and ooomph but what I also like the most is the clear and present surprising sounds which seem to suddenly pop out of left field. Those sounds can be percussion, horns, a rythm guitar lick, etc. but it’s so “there” and so clear.
Since 2003 I’ve never been without a pair of HD600 which has the best midrange of just about any other headphone on the market regardless of price. The Beyer T1 Gen1 is a clear, fully fluid and detailed headphone which it’s detractors dislike the treble which may have some sibilance at times. Again, if the treble is a bit too sharp : tonal adjustment and voila, no problemo. Lastly the DT880 Pro/ 600 ohms : it resembles the GS1000i in some aspects but with more body and it sounds great with my vintage amp.
The most important thing to keep in mind, always when listening to music, regardless of the headphone is : the album production and mastering. Some albums are not very well recorded and some purists who refuse to use any tonal adjustment in the name of not colouring the sound spend copious amounts of money on expensive DACs, cables, headphones, amps in the quest of finding that pure sound. I don’t want to go that route anymore. I did at one time but am happy with what I have now. I also don’t want to open up a can of worms having to discuss or defend my point of view on the subject so if anyone objects to what I’ve just written, please remember that it’s only my opinion & I’m not getting into any debates. Too old and no time or energy to waste. I respect all opinions and points of view.
So Shane, I sort of drifted off your question towards the end but I answered the best way I could. I loved the GS1000i sound but I also like the other HPs I own and feel they have a bit more overall body. I guess it always comes down to a matter of “personal” taste.