Spider® IV guitar amps redefine what is sonically possible from modeling amplifiers. Spider IV 30 delivers a perfectly distilled collection of celebrated American and British amp tones, the unprecedented control of Line 6 Smart FX, and a truly evolved playing experience. Inspired by the features that made Spider III the #1-selling guitar amp line in the U.S.*, Spider IV 30 boasts instant access to the 12 essential amp tones that all guitarists require, 7 inspiring effects that add exceptional colors and textures, a built-in tuner, a three-band EQ section for tone-shaping control and more. Every aspect of Spider IV 30, from its guitar input to its 30-watt power section to its 12" Celestion® Custom speaker, delivers exceptional definition, clarity and feel. And the three-quarter closed-back cabinet adds the perfect tight, snappy response to the diverse range of tones.