Focusrite Scarlett OctoPre Dynamic 8-Channel Mic Preamp With AD/DA ConversionDescription Expand your studio with eight mic line inputs, eight line outputs, Focusrite precision conversion up to 192kHz AD DA and analogue compression on every channel. The Scarlett Octopre Dynamic builds on the features of the Scarlett OctoPre, adding analogue compression to all input channels and eight channels of precision D A conversion. With dual ADAT* optical I O, its ideal for expanding a Scarlett 18i8 or 18i20 or any interface with ADAT I