You are looking at a very clean pair of TAD TD-4001 large format Alnico H.F / M.F. drivers with Radian model 1292- 16 ohm replacement diaphragms personally installed by myself ( CK of CK Speaker Repair ) These drivers are fully tested and ready to install. Please view all pictures for details. I take great pride in the packing of my items. Shipping quote is for continental USA only.