Sennheiser CX300-B Earbuds (Black)

I'm genuinely shocked that folks are unimpressed with these buds. They've served me very well for a looooong time. Yes, they handle bass veery well, but I never found that was at the expense of treble, not at the start (are now, since 4 years of earwax... yeh, you knowaddamean). Could be better isolating? Sure, but I regularly hear nothing of the outside world when I have them plugged, unless someone's near me. I like being isolated, buuuut, I guess I like being able to hear when the truck is about to collect me or whatever.

What impressed me most about these, srsly, is the comfort. I have a laaarge collection of earphones that I've ditched because they lack a satisfying suction-cup attachment to my very (apparently) malformed ear canals. So many would just drop out of my ears so very easily. Until these.

Now, alright, they're probably long in the tooth now, and I'll prolly have to replace them b4 year's out, but for what its worth, I have yet to buy anything I was more satisfied with.

Like many other people, I got my cx300's as they were widely available on the high street with not much competition at the time. They are mostly known for their bass which is very abundant. The problem with that much emphasis on bass is the rest of the range suffers. Treble, in particular, suffers quite badly and is drowned out. Add to this very little clarity in the bass which doesn't have great extension anyway and for sound you are soon left wanting.

The trusty cx300's are quite comfortable to wear but isolation is not that good due to the shallow insertion and cable noise can be quite bad. You just get the feeling they were designed for a 13 year old who just thought more bass was better, people's ideas have moved on since then. Overall there are  much better for the price out there. Also there are many fakes out there which are worse but come without a warranty (which you may need).

These IEM's are very comfortable so they can be worn while lying down with no discomfort.

The bass is the best part of the CX300's, while the mids are average and the highs are lacking.

For the price, these are decent headphones and anyone interested in relaxed sounding headphones, this would be a nice purchase.

Well worthwhile upgrade and not too expensive. Emphasized lower end.

My only complaint after using these for the gym for over a year now is that the cord length is different from the split to the buds.(one more than twice as long as the other)