Source Audio SA141 Soundblox Pro Multiwave Bass Distortion Diverse Sound Palette - Featuring 23 varieties of our unique distortion algorithms with an added CLEAN BOOST + EQ mode. State-of-the-art DSP - Our proprietary 56-bit Digital Signal Processor, the SA601, and crystal clear 24-bit converters. 7-Band Equalizer - Ultra-precise 7-band equalizer for in-depth tone control saved per preset.