And with this, a $100, 40-watt speaker that looks exactly like a stage monitor but nonetheless isn't quite a stage monitor, the bizarre, alternate universe of rhythm gaming is complete.

First things first: you can't plug your guitar into this. It's not a guitar amp, and it doesn't have a 1/4-inch input, and the 6.5-inch speaker simply isn't designed for it. It does have stereo analog inputs, meaning it'll hook right up to your game console, giving your rhythm game of choice more power, and more importantly better sound resolution.

At first glance the concept is patently ridiculous—the line between an amp and a fake amp is much thinner than between a guitar and a fake guitar, and you can buy an amp for this much—but rhythm games are essentially social, and built-in TV speakers are uniformly terrible, so having a portable "amp" to bring to parties isn't actually such a terrible idea. [Altec Lansing]