pseudo-, quasi- semi- and. Pseudo- comes from the Greek for false/lie and refers particularly to something not genuine. Quasi- comes from the Latin for almost and refers to something that is almost something else. Semi- is the Latin for half and refers to something that is half-something else In late usage, however, all three have been used to mean sort-of-.
2 Channel Amplifiers. 2 channel amps, or stereo amplifiers, are simple solution for upgrading a car audio/stereo system. As a general rule, 2-channel amps are intended to output sound that can be faded between a left speaker and a right speaker, however; many stereo amplifiers can be to power a car subwoofer. Recently Viewed.
An operational amplifier (op-amp) is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output.he gain equation for the op-amp is: However, in this circuit V â is a function of V out because of the negative feedback through the R 1 R 2 network. R 1 and R 2 form a voltage divider, and as V â is a high-impedance input, it does not load it appreciably.