The EXTC-SA Guitar Effects Reamp Interface from Radial Engineering is a standalone audio interface that lets you incorporate guitar effects into pro-audio recording. This unit is easy to use; just connect a line-level signal from the recording system. The unit unbalances the signal and converts it to high impedance where guitar pedals can be inserted at will. Simply plug in, turn the track on, set your levels, and adjust the blend for adding various effects to your track.
It includes Radial's 100% discrete class-A guitar buffering for ultimate audio integrity, transformer isolation to eliminate buzz and hum caused by ground loops, 180º polarity reverse to keep effects and balanced signals in phase, and 2 loops that will let you compare signal paths or combine them to create your own sounds.