Direct line recording without microphone. It converts the amplifier (or preamp) output or speaker signal, allowing the sound to be connected to a mixer or recorder. Two sound options: a 4x12 cabinet and a 2x12 combo. Plus, there's a switchable ground loop isolator.
It can be used like this, for example: Guitar -> preamp OUT -> S.L.Amps Custom speaker simulator -> reverb -> PC or Guitar -> tube amp speaker OUT -> S.L.Amps Custom speaker simulator -> PC