Spider® IV 15 is the #1-selling amp in the USA and Spider IV 30 is the #1-selling 30-watt amp!*
Watch and learn the awesome power of the Spider IV series guitar amps Hear first hand why the Spider IV series amps are the best guitar amps in the world See the quality and craftsanship of the best guitar amplifiers in the world Learn more about all of the Line 6 guitar amp models on the market Learn about the professional-grade effects that come standard with every Spider IV 15-30 guitar amps Professional-grade tones and presets are only a dial click away in every Spider IV 15-30 guitar amp Take your sound to the next generation with the Spider IV 15-30 guitar amp add-ons

Smart FX.

Smart FX knobs put award-winning Line 6 effects at your fingertips. Easy to use, Smart FX let you spend less time tweaking and more time playing. Easily add or remove any amount of lush reverb, exceptional echo, tangy mods, and more. The knobs are located on the amp's front panel, so you can make all your adjustments on the fly.
Line 6 puts award-winning effects at your fingertips in every guitar amp we release
Spider IV 15 features 6 Smart FX. Spider IV 30 features 7 Smart FX, including a dedicated Reverb.
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Award-winning effects are now just a tap away with the tap tempo function
Tap tempo.

Sync up your effects like a pro with on-board Tap Tempo. With two pushes of the Tap Tempo button, all of your time-based effects will fall in line with military precision. The peaks of your Tremolo will match the feedback of your Sweep Echo, and so on.

*Based on MI SalesTrak® 2010 reports.