Source：https://sat03labs.com/ccz-solo_dc02/
Specifications and Frequency Response
The packaging is compact and has a simple design of earphones on a white background.
When you open the packaging cover, you'll find the earphones themselves.
The included accessories are stored at the bottom.
Set contents
1. Earpieces: Silicone type S/M/L sizes
2. Cable: Cable with microphone, 3.5mm 4-pole L plug, 0.78mm TFZ type connector
3. Instructions
The sample is a cable with a microphone, so it has a 4-pole plug, but if you select "without a microphone" when purchasing, it will have a 3-pole plug.
Build
The zinc alloy faceplate has a simple design with only the model name and logo.
The plated silver has a smooth texture, is resistant to fingerprints, and has a very nice texture.
The other color, black, has a frosted oxide finish and seems to be highly durable.
Each side weighs 6.8g, which is slightly heavier than earphones with the same resin shell.
The metal nozzle has a standard size of 5.7mm.
In addition, the design of the shell with raised edges improves the fit to the ear.
Thanks to this excellent fit, I didn't feel any fatigue or ear pain even after using them for long periods of time.
In addition, the sound insulation is excellent, and sound leakage is hardly noticeable.
Apart from the faceplate, the shape is the same as the BC01 PRO.
The 10mm diaphragm is made of PU and PET.
|
Driver |
10mm Dynamic Driver |
|
Impedance |
20Ω±2Ω |
|
Sensitivity |
103dB±3dB |
|
Frequency Band |
20Hz – 20kHz |
1. Amplifier: TOPPING L30
2. DAC: TOPPING E30
3. Cable: Included cable
4. Earpieces: Included earpieces
5. Warming-in: 10 hours
Quality of different sound ranges *In the above Usage Environment
It has a warm sound with a bass bias.
The treble is modest and subdued.
Looking at the frequency response, it seems to have a boomy tone, but in reality it doesn't feel intense.
There isn't much clarity, and it seems to play a supporting role in preventing the music from becoming dark.
The midrange seems to be covered by the bass, and the resolution is lacking.
The separation is also weak, and there are times when the sound feels vague.
The vocals maintain a moderate presence without being hidden, but they don't come forward either.
The bass is soft, full, and rich.
The push of the mid-bass and the depth of the sub-bass are also well expressed.
Depending on the song, the bass can sound a little muddy, but it's not noticeable.
There are no particular issues with the localization.
The sound field is modest, and I would say it's satisfactory.
It goes well with songs that emphasize bass, but I think it can handle any genre of music.
These earphones sound great even without going through an amplifier.
You can enjoy powerful sound quality even with just a smartphone.
I also recommend re-cabling and replacing the earpieces.
The earpieces are a type that emphasizes the high frequencies, and the re-cable works well with a cable that uses high-purity copper wire.
Compare with 1DD devices in the same price range.
|
Model |
Brand |
Driver |
Compatible connectors |
Weight |
Amazon price |
|
DC02 |
CCZ |
10mm-PU+PET |
TFZ |
6.8g |
$14.75 |
|
ORCA |
TRN |
10mm-LCP |
QDC |
9.5g |
$13.79 |
|
EDX |
Lite KZ |
10mm |
QDC |
3.5g |
$7.06 |
The DC02 features a thick sound and is tuned to give a sense of strength and power.
On the other hand, the ORCA excels in sound field width and resolution.
With clean tuning, it gives the impression that unnecessary sounds have been stripped away.
My impressions were similar to those when comparing with the ORCA,
but the EDX Lite has emphasized high frequencies and sub-bass, and is characterized by a sound that tends to be more bass-heavy.
My impressions are basically the same as when comparing with the ORCA.
If you value rich bass and full midrange, we recommend the DC02.
The DC02 are characterized by powerful bass and warm sound.
There are some areas where the resolution and separation leave something to be desired.
However, considering that these are an even lower-priced model, even amongst the entry-level class, I think they perform well enough.
I would say that these earphones are designed to make music enjoyable to listen to, rather than to make the sound sound clearer.
I recommend them to people who like bass and want easy-to-use earphones.
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