Line 6 HX STOMP XL Guitar Multi-Effects Floor Processor (White)HX Stomp, Expanded The HX Stomp XL amp and effects processor delivers HX modeling in a performance ready pedal with eight capacitive touch footswitches. The same SHARC DSP chip found in Helix enables it to run up to eight processing blocks simultaneously, and the footswitches let you access and control those blocks in powerful ways. AUTHENTIC TONE The SHARC audio engine in HX products accurately recreate the sonic characteristics and dynamic playing