Curio,
Did you hear the XP-20 in other systems as well? I find it to be so transparent that it really reflects the character of what is in the rest of the system. I agree the mids are more refined. The lower noise floor relative to the X-1 also allows me to hear more detail and I find it has less of its own signature than the X-1 has. For example, the quality of particular recordings is more apparent. I found the X-1 very slightly cool/dry of neutral and that character was evident with all recordings in my system. The XP-20 sounds cleaner, smoother and clearer and yes, warmer on some recordings, but I think that warmth brings it closer to neutral than the cooler X-1, if you follow my thinking. The X-1 remains an excellent value and is of very top quality.
Did you hear the XP-20 in other systems as well? I find it to be so transparent that it really reflects the character of what is in the rest of the system. I agree the mids are more refined. The lower noise floor relative to the X-1 also allows me to hear more detail and I find it has less of its own signature than the X-1 has. For example, the quality of particular recordings is more apparent. I found the X-1 very slightly cool/dry of neutral and that character was evident with all recordings in my system. The XP-20 sounds cleaner, smoother and clearer and yes, warmer on some recordings, but I think that warmth brings it closer to neutral than the cooler X-1, if you follow my thinking. The X-1 remains an excellent value and is of very top quality.