4 x Funktion One F221 Bass Enclosures, violet with silver fronts.  Price listed is Per Pair. Selling in pairs/multiple of pairs only.


These are in absolutely excellent condition all around. They look superb. They were an ex long term install rental so have hardly been moved and, being serviced by our team regularly, you know they are in perfect working order. Doubt you will find much better specimens than these again.


  • All serial numbered
  • Offers welcome
  • Any inspection welcome
  • Standard GDS 6 Month Used Warranty



We also have 6 Funktion One Res 5T Touring Loudspeakers with wheelboards HERE. These would make a perfect system (6 x Res 5T and 4 x F221). We can provide complete turnkey systems that would include amplification, racks, processing, patch panel, set up, limiting and cables. Just send us a message if you are looking for more of a complete system.


  • Wheelboards included
  • All serial numbered
  • Offers welcome
  • Any inspection welcome
  • Standard GDS 6 Month Used Warranty


Manufacturers Description

Funktion One are renowned for the controlled energy of our loudspeaker systems – this is nowhere more evident than in our bass enclosures which deliver physicality with accuracy for truly involving musical experiences. In the 1980s Funktion One’s Tony Andrews pioneered work on the development of the first 21” loudspeaker ever made.  


This provided the low end for his highly regarded system design of the time which was used on world tours by groups including Pink Floyd and Dire Straits.  More recently, with F1's access to advanced materials and Andrews’ heightened understanding of loudspeaker and enclosure tuning, his original 21” concept was due for a revisit.  


The Funktion-One designed drivers are incredibly robust and have 6” voice coils for maximising power input.  The powerful Neodymium magnet provides very high magnetic flux density whilst significantly reducing the weight compared to ceramic.  The resulting F221 is an exceptionally efficient high-intensity bass enclosure providing fast, accurate, physical bass of the highest calibre.

The product is supplied with 8 Ohm drivers. 4 Ohm drivers are available to special order. 




  • Advanced Andrews' tuning
  • Funktion One designed drivers with Neodymium magnets
  • New driver orientation provides improved cooling
  • Integral handles
  • Optional throat grills

Funktion One F221 Bass Enclosures (Superb Condition)

£8,295.00 Regular Price
£7,200.00Sale Price
  • Driver 

    Operating Band


    (1W at 1m)





    2 x 21"

    20 - 200Hz



    2x 4Ω drivers (2Ω parallel)


    2x 8Ω drivers (4Ω parallel)


    *AES rated


    Frequency Response ± 3dB:

    40Hz - 250Hz


    130kg (288lbs)


    18mm Birch Ply


    2 x linked Speakon NL4

    (One driver wired pins 1+/- and one on 2 +/-)


Product Rating