Looking for legendary tone at manageable volumes This Used Rivera ROCK CRUSHER Effect Processor is in great condition and delivers exceptional performance for guitarists seeking powerful tube amp sound without shaking the walls. Designed as a reactive load box and attenuator, the Rock Crusher allows you to crank your amp's power section while keeping the volume in check. Supporting up to 120 watts RMS and 8 or 16-ohm amps, it preserves dynamic response and tonal integrity across all volumes. Perfect for studio recording or live gigs, it features a built-in EQ switch for edge and warm settings, and a line-out for added versatility. Ruggedly built and trusted by professionals, this unit is fully functional and ready to elevate your rig.