Ok, so I went to Canadian Tire and got myself a pair of KSC-50's.
At the end, they were 35 $CAN (~ 24$US) + tax but it took me 15 minutes on my bike to get there so I got them anyway.
When I pulled my PCDP out of the back pack, my MX400s
seemed to be scared - and they have every reason to be!
Optically, the Koss are a perfect match for my silver CT570 and IMHO look pretty cool otherwise ( they don't look as good on my ears though... but usually I don't see myself anyway, and I don't care if other people think I look weird
I wanted these cans as toss-around phones and for working out, and they really serve their purpose well and don't come off easily (as earbuds would do)
What I don't like is the sharpness of this hard plastic the rubber/wire is attached to - it hurts my ears if I have them in the wrong position.
The sound is really good out of my PCDP. Tight low/mid bass - something you wouldn't expect from a cheap phone (and don't get from ones that are 5 times the price - see v600 )
Good detailed highs and upper midrange. Some might think they're bright, I think they're just right.
Of course, the Koss are not perfect. They lack the soundstage of better headphones. They also have a certain harshness in the upper bass/ lower midrange region that I don't like.
I think these are amazing headphones for their price - an incredible bargain. Right now I'm trying to chear up my MX400, and indeed those are better in situations where you can't have the Koss' sound leakage (like on the plane). But other than that the KSC-50 have taken over as my portable toss-around phones.
Thanks to jude, MacDEF, and Deuce_Bigalow
And vij, are you still accepting applications for Team Cheapo-Koos?