ISP Technologies Theta Pro DSP Preamp and Multi-effects Floor controlled Guitar Processing System with fully programmable THETA preamp and Vintage Preamp. 32 bit floating point processing with state of the art A/D and D/A converters providing 124db dynamic range between input and output and over 1500db internal dynamic range. Proprietary hyper-oversampled distortion algorithm provides higher gain than any other digital preamp with zero aliasing or digital artifacts. TRUE SPEAKER offers ISP's convolved Speaker Samples for true "direct to mixer" live or recording realism. Patented Digital Decimator for the absolute best real-time guitar noise reduction.