Introducing The Submarine : The pickup that makes your guitar sound like two guitars. - YouTube
Octaves up and down with the Submarine Pro. One guitar, many sounds. strings 1 & 3tc electronic sub-n-up octave upwayhuge echopusstrings 5 & 6mxr bass... | By Submarine Pickups | Facebook
Einzelne Saiten effektieren – Submarine Pro Pickup - gearnews.de