The cable itself is slightly flattened to reduce tangles, which it seems to do quite well, and although it’s far from kink-free out of the box, it does hang reasonably straight.

CX 300S | Sennheiser CX 300S | Sennheiser

The Sennheiser CX 3.00 are almost the perfect entry-level earphones. They’re incredibly light and comfortable, and just easy to get on with. However, they’re very bass-heavy, so only really for casual listening unless you’re seriously into low frequencies. Their price needs to drop a little, too. Originally released in late 2008, Sennheiser's CX 300 II Precision earphones are some of the oldest models on the market from the CX Line, but continue to deliver in almost every aspect. For those looking for a high-performance pair of earphones within budget, these are certainly worth considering. Features & Sound I was going to buy the most acclaimed RE2 but when I saw that those CX300 II are better than the old CX300 I am starting to think twice... The most obvious thing about the CX 3.00 design is that Sennheiser has moved from a straight earpiece to one with a slight angle to it, and this makes all the difference to how well they fit, as well as the resulting comfort and sound quality.

Yes the new Cx-300-II are an upgrade on the older cx-300. Before the older model i found a little harsh on highs and boomier bass and the new model fills out the mids a little more too. If I had to measure it at this stage with only a few hours use - 10-15% better I suspect it would improve a bit more with use. I found with audio things take awhile to break in (burn in) some people dont believe in it but from my experience in each component and speakers i have bought things have improved with burn in. So, after reading your opinions, the new cx-300 II don't seem to be a big improvement in sound if compared to the older ones, as I suspected. Anyone comparing the new model with cx-400?

Sennheiser CX 300-II review | TechRadar

The Sennheiser CX 3.00 are great low-cost earphones. They’re lightweight, easy to handle and incredibly comfortable. Their angled design also makes for a top-notch seal, resulting in great bass response and noise isolation. There’s even a choice of four tips and a case. If you're looking for an affordable, decent-sounding pair of earbuds, start with the Sennheiser CX 300. Sennheiser's first in-ear design sounds like a winner to us. Just bought a new sennheiser cx-300-II. After 1 hour it sounds better than the old cx-300. A smoother and sweeter sound with a tighter not so boomy bass, more natural mids a bit fuller voices and not as harsh or brittle highs a bit more natural sounding overall headphones. I found the old cx-300 a bit bright and harsh these ones i can actually relax more too- it has more warmth but still with detail. So far Ive only being listening too Gregorian masters of chant. I will update as it burns in more and listen to other music. The old cx-300 I would of given 6.5-7 perhaps for sound, this at least 7.5 out of 10 so far. I want to hear all the music details of Trance and Psytrance songs with a good(not heavy) bass,the RE2 as I understand has it all but the Bass,so how's those CX300 II at this stage and how can you compare them to RE2 or even Nuforce Ne-7M??? My rating would be soundwise. On the sennhiser cx-300-II I noticed the treble is now more defined and detailed, seperation between instruments are better (more airy), bass tighter, voices are more warm and natural and detailed than the old cx-300. It has al less artificial sound the new model - smoother and less fatigueing. Maybe closer to 25% improvement 8.5/10 (price taken into account) so far.

With headphones, like most things, you typically get what you pay for. Sennheiser CX-300s are decent value for money but they are definitely low end headphones, no way around it. All too often these sort of in-canal earphones, where the rubber earpiece tips sit in and seal against the outer edge of your ear canal, are scuppered by not reaching far enough into the ear to get a good seal – at least, not without being pushed uncomfortably far in. This can be avoided by having a longer earpiece that gives more room for the tip to reach into your ear without the cable fouling against your earlobe, but a much easier solution is to angle the earpiece to more accurately match the angle of the canal itself, as done here.

CX 300S | Sennheiser

Remember I am not comparing the cx-300-ii to a high end model, I'm comparing it to the old model cx-300 - my friend has the old model. Im rating the sound within the budget price range. Wow. I'd grade my CX 500 like 6.5/10 and the CX 400 5.5/10. I wonder how they compare to the CX 300-II or 400-II.Thanks for the update stephennic. This afternoon I'm going to try, if I can, the 300-II at a local store, so we will be able to compare our feelings. But let’s be clear, these are a huge upgrade over most in-the-box earphones and they’re specifically aimed at those who like their bass – in that regard they live up to their billing. A good seal also means you can get a good bass response, and with Sennheiser having upped the bass level on the CX 3.00 compared to the CX 300 II, bass is definitely something you get plenty of here. The deepest bass lines reverberate around your head in a way that few earphones can match.