Review on 🎧 KBEAR KS1 1DD HiFi Earphone Headphone with Dynamic Driver & Detachable Cable: Yinyoo KS1 In-Ear Earbud for Superior Sound Quality and Convenience (with Mic) by Dave Giri

I am addicted to my original ZS1 with KS double driver. The sound was so pristine for headphones at such a low price and it had bass to die for. Long story short, after several pairs of multi-driver headphones from KZ, I've reverted to one of their cheapest kits. And i love her. The bass is less boomy, more refined and with more sub-bass potential. They also sound much better at high frequencies than you would expect from single-driver headphones. Not quite on par with the ZS5 or ZS10, but crisp and clear enough not to get lost when throwing out electric bass or even amazing organ lows. The best pair of KZ headphones. They should put DAS in their Bluetooth headsets rather than the weak bass of the S1 and even the S2. Headphone deal of the century.