Judging from the look of those subs, 1.5”, maybe 2What is the diameter of the coil?
These are some of the very LOW Tier Audiobahn subs. Give away are the terminals and NON-Stitched for another. 300-1k rms and more have heavy Duty Spring terminals with 100+Oz magnets. I still have several of my AW1008t subs and AW1006T subs, and a couple 12s and 18s and a set of Immortals/Quads that stil get down and play very nicely. Check Each coil for Ohm readings.. most are going be DVC4s. These are rated for approx 200 RMS if I remember correctly. These look like the ones they placed in a sealed and some ported dual enclosures rated for 400 rms packages that also came with the 4002T amplifiers and the like. They should do nice in 1.4 sealed per sub up to 1.8 ported @36 HTZI have 2 10 inch dvc audiobahn subs but have no specs or have no idea which audiobahn 10s they are.. just trying to figure out what is the rms attached is a pic of what they look likeView attachment 47301