> Is the amp in this article the same kind of amp that you could plug an electric guitar into? I'm no expert, but as far as I understand, this is a power amp,

> Is the amp in this article the same kind of amp that you could plug an electric guitar into? I'm no expert, but as far as I understand, this is a power amp, which takes an input at line level (~1 volt) up to a level that can power a speaker. Guitar pickups produce a signal around 100 mV, and typically need a "pre-amp" stage before the power amp to amplify this signal to line level.