The Spark 40 has a number of features that make it stand apart from the crowd. It is lightweight and easy to transport, making it perfect for on-the-go musicians. This model is part of Positive Grid's line of modeling amps, which gives it a wide range of tones and effects to choose from. If you are looking for an amplifier that will deliver great sound and versatility, then the Positive Grid Spark 40 is the perfect amplifier for you!