No, colder and more neutral, I wouldn't agree. I was using the E7 alone at work with my Usone 900's and it was a great improvement (of course) over the craptop's sound output. But adding the E9 brings it into audiophile territory. Much more clarity, bass impact, etc. You need great phones of course for it to be worthwhile, but the versatility of having the E7 for on the go, and the combo with E9 for an audiophile setup you can leave on your desk and not just die if it were stolen, are well worth the cost.