What is an Opamp An operational amplifier or op-amp is simply a linear Integrated Circuit (IC) having multiple terminals. The op-amp can be considered to be a voltage-amplifying device that is designed to be used with external feedback components such as resistors and capacitors between its output and input terminals. It is a high-gain electronic voltage amplifier with a differential input and usually a single-ended output. Op-amps are among the most widely used electronic devices today as they are used in a vast array of consumer, industrial, and...

Knowledge Zenith's, the company which is notorious for making so many models, sometimes confusing, sometimes irritating(ZST and ES3 choice) has a good history of producing gems at lower price. And today I will be talking about a KZ IEM which shook me completely. Some may think it is a pretty weird review because on KZ thread, it is mentioned to be a treble tamed bass boosted KZ ZST. Thanks to some users on thread to use wide bores. The box The IEM These don't even sound like ZST from any angle. Let me go into detail. First of all, I am...