Have you ever read an amplifier review and encountered the terms Class A, Class A/B or Class D? We explain all.

For most retail investors, the difference is truly irrelevant. The difference between 100 votes and 1,000 votes is meager compared to institutional investors—firms that typically control the lion’s ...

If you have read an amplifier review or looked at the specifications for an amp, the chances are that you have come across a term such as 'Class A/B'. In fact, this is just one of a number of ...

The difference in Class A and Class B shares depends on how a specific company structures each class of shares.

Meanwhile, 20.4% of the Class B shares have been converted into other classes, and the Class C count is down by 8.2%. These figures took the recent 20-for-1 stock split into account, of course.

So, Class B stock is not traded on the public market and there is no effective difference between Class A and Class C.

To demo this, [Afrotech] used TI’s TPA3122 class d amplifier chip. It’s a pretty cheap chip for being a 15 Watt stereo amplifier, and the circuit is simple enough to build on a breadboard.