The Heavy Hitters Collection: Volume I wave audio format (.wav) impulse response library captures and is seeking to recreate the sound of four 4x12 cabinets - 412 DZFL, 412 MRMF, 412 ORNG, & 412 RECT - each loaded with three different speaker types and combines to provide a diverse tonal array suitable for high-gain voiced guitar tones.

Originally released in 2016, this library's sound and feature set was remade in 2025 to be easier to navigate and use with today's tools, workflows, and upcoming OwnHammer software.