one thing we al lneed to rememebr is there is a lot of v.3/2's out there that are all from recones etc.... as far as production units brand new of the line the differences is...
V.1 - Sand cast basket = less accurate dimensionally,
not as smooth
less defination in the basket shape
one piece cone
yes the surround was slightly smaller
soldered tinsils
1st generation bifloridian coil cooling design
pigment rate lower on the powder coat
1st generation spider
v.2 - same as v.1 except
newer taller surround, also slightly stiffer
crimped tinsils
new gluing techniques
new glue and adhesives applied
new spider
V.3 - Pressure cast basket = extremely accurate in dimension
higher pigment powder coat
machined mounting surfaces
high detail in design
more defination in design
much stronger than sand cast
Introduction of the D2, D3, D4 coil applications
New assembly process
new radiator design
aluminum dustcap
composite pulp cone
new surround
new spider
new tinsel to terminal junction assembly process
new spider landing application
there are a few more things to it but those can be left in the design books and not on the forum
Fred Lynch
Team Image Dnamics
Image Dynamics Services Tech