Fishman Aura Spectrum DI, DI Box, Highest quality studio microphone simulation with revised AURA technology, The output of a bridge or soundhole pickup is mixed with one of the many sound images, 128 Preinstalled AURA sound images for almost any acoustic instrument, 24-bit A/D/A conversion, 32-bit internal processing, Stable, design-oriented metal housing, Preamp with balanced XLR DI output, Equipped with volume, blend and image select controls, 3-Band EQ, Variable compressor, Effect loop over FX insert, Automatic feedback suppression with up to 3 filters and phase switch, Built-in chromatic tuner with bypass and mute function, 16 Freely assignable storage spaces, Images specially adapted to the instrument can be transferred via USB interface from the AURA Image Gallery III software (included), Power supply via external DC power supply unit or 9V battery (not included), Optional power supply available under article nr #409939#, Dimensions (W x H x D): 134 x 54 x 143 mm