INTRODUCTION Our old friends at Knowledge Zenith (KZ) made waves in late 2018 with the release of the ZSN. The ZSN was a major upgrade from Knowledge Zenith's (KZ) very first hybrid IEM, the ZST. But to understand where we are now (the ZSN Pro), we need to look at where we came from (the ZST and ZSN non-Pro). The ZST was a single hybrid IEM, with 1xDynamic, 1xBalanced Armature per side. It had a medium-sized full acrylic resin shell, with a removable cable. It was a leap ahead of previous Knowledge Zenith (KZ) earphones, but it had serious flaws...

CCA C10 Introduction: If you’ve never heard of CCA until recently, you’re not alone. CCA stands for Clear Concept Audio. They came out of nowhere in 2018, and have been steadily releasing a number of budget earphones ever since. CCA models are built well, have appealing tuning, and are delivered at a budget friendly price. Well, as it turns out, CCA is a sister company of the budget earphone kings: Knowledge Zenith (KZ). This has both pros and cons. On the one hand, Knowledge Zenith (KZ) has a long history of producing solid performing earphones...

BQEYZ KB1 Specification: Price: $50 Design: In-ear, worn up (behind ear) Housing: Aluminum Colors: Black, Grey Nozzle size: 5.5mm Drivers: 10mm single dynamic + 6mm single dynamic + 1 Balanced Armature Frequency response: 7Hz–40kHz Impedance: 15ohm Sensitivity: 105dB Cable: Available with wired cable OR wireless Bluetooth cable Removable cable: Yes Connector Type: 2-pin, 0.78mm (compatible with 0.75mm) Controls: 1 button control w/mic (wired cable) OR 3-button controls w/mic (Bluetooth cable) Weight: 25g Accessories: 3 pairs single-flange...