Funktion One F121 Bass Enclosure:
 
The F121 provides outstanding bass performance from a moderately sized enclosure making it the bass of choice for many diverse applications.  Similar in output power to an F218, this single 21” version of the F221 can be used with virtually all Funktion One mid-high loudspeakers to great effect.  The advanced   loading and driver design of this high-efficiency product provides audiences and crowds around the world with stimulating and satisfying experiences.  The F121 comprises a horn-loaded and very robust Funktion One designed 21” driver with 6” voicecoil and Neodymium magnet.  Available in 4 Ohm or 8 Ohm versions with optional wheels, throat grill and pole mount.
 
 
Features:
Advanced Andrews' loading
High output from moderately sized enclosure
Funktion One designed driver with Neodymium magnet
New driver orientation provides improved cooling
Integral handles
Optional throat grill, wheels and pole mount
Choice of 4Ω or 8Ω driver