Good article. While they got the CX 300s (which actually didn't impress me), they did overlook the Sennheiser CX 200s though.

They're under $20 (I've seen them on sale for as little as $9.00) and they are outstanding IMO.

The CX300s sound way more "muddy" to me, while the CX200s have more of a kick. I notice more detail, as in smaller more subtle noises are pronounced while not being loud. The CX300s almost seem to eliminate these sounds, and I feel like I'm actually missing out.

The only ones I like more are my these Shure IEMs that are nearly $200 (granted, I got them on sale for $80). They are actually very similar in quality of sound IMO, however with the Shure's you can hear every last detail. The breath of a flute-player in an orchestra that I wouldn't have picked up on anything else I own.

But, I prefer the CX200s for one very important reason: They're cheap as hell. Break them, whatever. Who cares? Break the $200 Shures? Misery.

So I mostly don't use the Shures, they're more of a once-in-a-while treat.

TLDR: I suggest the Sennheiser CX 200s when it comes to bang for your buck.