Celestion G12K-100

The G12K-100 is Celestion's premium 100-Watt driver and it's a beast! Featuring the heaviest G12 magnet currently in use, it combines substantial power handling with exceptional sensitivity, detail and clarity.
 
Frequency response is awesome: the K-100 has, without doubt, the biggest bottom end of any G12. The undisputed king of metal, down- tuners in particular will love this speaker's aggressive grind.