WF81 Series comprises of WF81-4MN (Phase plug design) and WF81-4ST (Dust Cap Design). Both are designed to work with the FD51 series with a simple crossover to create a 2-way 3D printed speaker design. This is then paired with the ‘Endeavour’ speaker cabinet to produce a more full bodied sound.
This is a more complex build, but gives the added benefits of extended bass response and power handling.
WF81 was built as a building block as well to later on use to make a better singular driver. This work starts with Tenacious 6.