Introduction:I know what your thinking another CCA review really? Yes really as long as CCA keeps making good IEMs I'll keep reviewing them also ya'll voted for it. The CCA C04 is the first IEM CCA released under their name and it's pretty good for a their first one. This IEM really manages to bring the bass while still being a capable IEM.
Now these are interesting little IEMs when it comes to the treble. They contain a ba (balanced armature) driver in the stem of the EIM, now this usually means you will get some bright treble. With these you don't get that piercing treble you actually get rolled off highs. This means it lacks that nice sparkle you usually get in the highs with Chi-Fi but you also don't get any piercing highs which is a plus in my book. Like I said before I'm not a fan of piercing highs.
Another weaker area for the IEM but still not bad. The mids are similar to the highs in that they are toned down and lack sparkle in them. They aren't bad by any means but they lack some detail and sparkle that would make them better. I also noticed a little bit of sibilance in the mids. Also every now and then I would notice something in the sound that just felt like I was hearing vocals out of a cheap pair of earphones from Walmart. It wasn't very often at all but I did notice it like once or twice throughout a few hours of listening still nothing horrible more of a weird quirk. The nice large sound stage was a plus I will give them props for that. The image separation was average nothing bad but by no means pinpoint accurate just average and that's fine for the price.
This is where they really shine. If you want a subwoofer in your head these things deliver. I mean they pound you with bass. If you want to feel like your listening to a 500w subwoofer in your ears then buy these. They have a great sub bass presence which is what gives that subwoofer feel as well as having a nice mid bass to fill out the rest of frequency range in the lows. There is some bass blead into the mids but honestly with an IEM with so much bass it's to be expected.
Fit and Quality:
These have a good fit to them I wouldn't say great but not uncomfortable. I think they would be even better if they reduced the stem length on them they seem to stick to far out for my preference. Quality wise they are good the translucent plastic shell is nice and the cable seems decent for the price.
KZ ZSN comparison:
Many of ya'll expressed interest in having a comparison so I'm going to do a comparison between the CCA C04 and the KZ ZSN. Of all the IEM's I have reviewed these are ones that are the most current and comparable in price if you have any feedback with the comparison feel free to post it in the comments.
The ZSN does a much better job of rendering high frequencies. Like I said the C04 has a rolled off treble which causes it to loose some of that sparkle typically found in highs. The plus side is there is no piercing highs however the ZSN rarely has this issue so in the highs I think the ZSN wins.
This is another area that the ZSN does well. The mids are much less recessed sounding and contain more detail. The one thing the C04 does better is the sound stage is bigger. Personally I'll take a more detailed and less recessed mids over a bigger sound stage but to each their own.
Hands down the C04 is better. The ZSN doesn't have bad lows by any means but the C04 has lows that just absolutely pound out the bass notes. Now not everyone wants a ton of head pounding bass and that fine in that instance the ZSN would be the better option.
The CCA C04 is a good IEM that manages to have a nice sound stage and great bass. The reason I say these are good beginners IEMs is because most people come from audio that really emphasizes the bass. So they are a good pair to transition them into audio that is more refined while still having the bass some people want. However If they want a more refined all around IEM I would go with the ZSN.
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