I recently returned a pair of CX400s to Sennheiser for free replacement under warranty. When I got my confirmation email from Sennheiser, it turned out that they upgraded me to CX880 for free!
But unlike most Sennheiser models, I'm having an extremely difficult time finding any info about the 870 or the 880. There are VERY few references to them on head-fi, and all the "reviews" I can find online are either blatant dummy sites or unreliable amazon.com type consumer reviews.
I know that price isn't everything, but I'm excited about the 880 because so far I've yet to use a pair of Sennheiser IEMs in that $80-100 price range. Should I expect a slight step up from a top budget IEM like the Nuforce NE-6 I'm currently using? I can obviously judge them for myself when they arrive next month, but in the meantime I'm wondering how excited I should be about these.
Thank you for anyone who can help me out! I'm sure some other people will find this info useful in the future, since there are barely any mentions of the 870/880 on this forum.