PmdI have a sundown x 12" motor and basket, also go an American bass HD 12" motor and basket. Let me know if that interest's you
x2motor specs and price . Magnet height, top plate thickness cooling options, gap specs magnet quality?
Heres a link for the 400oz with specs;Price and bl specs on those x3
Motors don't have BL specs you would need a coil to have bl. Looks to be 8layer 4in gap about an inch tall top plate, if the Steel and magnets are of good quality ( most ultra products are) then you will have a very powerful motor with the right coil. bl is a useless spec anyway without re and mmsPrice and bl specs on those x3
Any pricing on the 600ozHeres a link for the 400oz with specs;
400 oz Subwoofer Motor Magnet | eBay
ultra owner is out of town today. sorry hes a busy man. i'll get them once he has time tonight. hopefully!Any pricing on the 600oz