The following will allow you to operate the VD1 Vintage Distortion/Sustainor to its full potential:1. Connect your guitar to the INPUT using a standard 1/4" instrument cable.2. Connect your amp to the OUTPUT using a standard 1/4" instrument cable.3. Adjust the LEVEL control to achieve the appropriate output volume for your application.4. Adjust the TONE control to raise the high frequencies of the signal to give you a more powerful distortion tone.5. Adjust the SUSTAIN control to to give you more or less of the sustain effect.As always, experiment with different settings until you achieve your desired results.