Ideally you will connect the Loki between your preamps outputs and your power amps inputs. This is fairly simple if you have separates. If you have an integrated, you will need to use the pre outs and ins if your amp has them, otherwise you will have to connect it between the source and amp. After connection you just adjust each knob until you reach your desired sound profile.
The Loki appears to be a very wide band, very low "Q" tone control comprised of four filters, that per the diagram on the units front face plate appear to be shelving style filters. IOW each knob is going to cover a very large range of frequencies.
The Loki appears to be a very wide band, very low "Q" tone control comprised of four filters, that per the diagram on the units front face plate appear to be shelving style filters. IOW each knob is going to cover a very large range of frequencies.