@koven , Its interesting to think that you thought the Phantoms were a sidegrade to the Andromedas. To this I have a different opinion. I owned the andromeda for 2 years, so I think it would take me more than a sidegrade to upgrade to the Phantoms.
To sway away any shilling vibe from this thread, I strongly recommend people post their postings with which gear they used to listen/make a judgement call.
People coming in here making general statements like......Earphone A is better than Earphone B, doesn't paint the whole picture and isn't really helpful. Its not about putting together the most expensive gear, but Its really about synergy.
I see that koven here runs the andros from the hugo2, which I don't feel is the ideal oi for the andromedas because they sound bassy/congested compared to at an io of 1.5-3. This paired with the brighter sound signature from the Hugo 2 may balance out, but I haven't heard it extensively.
All I know from my perspective, sony daps starting from the zx2 have had much better good synergy with the andromedas and I prefer listening to them out of the Sony daps.
I think the andros are great, but the phantoms improved in the following areas.
The andros are hazy sounding, and aren't as precise in imaging and soundstage, particularly depth. Yes the sound is nice and airy with a slightly wider soundstage, but again, its somewhat hazy and not precise, especially in depth. Phantoms have much better imaging and soundstaging imo.
The andros have a timbre problem and it sounds slightly plastically and the airy sound is very fluffy. Its not a realistic timbre, lacking heft, and i find the bass to be not as good. People like this air, but imo its not really natural. Our ears get trained to hear this way and once we hear something more dense, we think it has less air. The andros are more treble tuned in their frequency response which don't help in this aspect. I find the Phantoms more grounded, with much better timbre, and better layering in all sounds. I listen mostly to classical and jazz, and therefore...this is a huge improvement and a must.
As you mentioned, the Phantoms are better in build quality/comfort. They are very light and almost feel like customs and everything is premium.
Also the Phantoms, when moving from my sony dap to desktop gear like my r2r soekris dac1541....scales much better in all of the aspects above than the andros.
So from a value perspective, was worth it? I believe so because its the small things that make the bigger differences at this level of iems. Though I love the andros, I don't see myself going back to them after the phantoms. I would have loved to save that money and invested it in other stuff if it was a sidegrade.
I always compare all iems to Real music I make(i'm a cellist), and compare them to my studio monitors which are usually superior.
Andros were always worse than studio monitors....and was worse than the focal clears.....which also got destroyed by my monitors. The phantoms...of course has its short comings as an iem, but it has its own unique presentation which I put almost on par with my monitors. So YMMV, but I think the phantoms are amazing. This is coming from someone who had no love for the Zeus XIV or the R.