The Rock Crusher' is a 3x2x2 structure for processing various materials.. The rock crusher, a 3x2x2 structure. The Crusher is built out of 12 special blocks made from a Block of Steel, Pistons, and broken down, it takes 3 Blocks of Steel, 12 Pistons, and 12 Diamonds to build one Rock Crusher.
Rivera RockCrusher Power Attenuator. For more info on this product visit us online ... or use it in place of your speaker cabinet as a load box while sending its balanced XLR or unbalanced ¼" line out to another amp as a slave, or even send its output to a mixer for recording or live performance.