EMINENCE THEWIZARD16 12-Inch Lead/Rhythm Guitar Speakers The Eminence Wizard guitar speaker will put a spell on your tone. Very articulate, but with a hint of grit. Nice sustain and exceptionally good tight bottom. Classic Rock tones of the 60s and 70s. Nominal Basket Diameter 12", 304.8mm Nominal Impedance 16 ohms