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

Comprised of products originally released in the mid-to-late 2010's, 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.