There are a few things to consider when looking for a cheap guitar amplifier. The first is the price. A good place to start is to look at what the amplifier is made of and how much it costs to buy it. Next, look at the features that the amplifier has. Some features that may be important to you include the sound quality, the range of sound that it can produce, and the size of the amplifier. Finally, look at the brand and model of the amplifier.