At last I got two pairs of cca c10 (for me and my gf). They're smaller then on pictures, fits very well, lightweight. After few hours I can say that they are very clear sounding and well balanced. No sibilation and any other problems even on high volume. Unfortunately as for our tastes the punch of bass is lacking. It's at most on par with other frequencies. On electronic music and even metal we can feel the lack of power in bass, like a real lack of voltage power or sth but it's not the case because I have lg v30 (but on standard hifi state of amplifier). Music don't sound as deep as it should. I had single dd earphones like soundmagic E10, Sennheiser cx 300 II and there were tons of bass more. I don't know if the burn in process (or just time) will improve bass punch or just this single dd is too weak to stand out from other frequencies? I will buy some foam tips for even better seal. I love the sound of those but it's a real shame that bass is that far behind. It's near perfect for us. If it's not gonna change then I need to buy something else I got used to music with subwoofer (Logitech Z-5500), my gf also loves deep sounds.
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