▁introduced ▁tur nt able ▁techniques ▁from ▁J ama ican ▁dub ▁music , ▁while ▁developing ▁new ▁techniques ▁made ▁possible ▁by ▁the ▁direct - drive ▁tur nt able ▁technology ▁of ▁the ▁Techn ics ▁SL - 1 1 0 0 , ▁which ▁he ▁used ▁for ▁the ▁first ▁sound ▁system ▁he ▁set ▁up ▁after ▁em igr ating ▁to ▁New ▁York ▁in ▁the ▁ 1 9 7 0 s . ▁The ▁signature ▁technique ▁he ▁developed ▁was ▁playing ▁two ▁copies ▁of ▁the ▁same ▁record ▁on ▁two ▁tur nt ables ▁in ▁altern ation ▁to ▁extend ▁the ▁b - d anc ers ' ▁favorite ▁section , ▁switching ▁back ▁and ▁forth ▁between ▁the ▁two ▁to ▁loop ▁the ▁breaks ▁to ▁a ▁rh yth mic ▁beat . ▁ ▁The ▁most ▁influ ential ▁tur nt able ▁was ▁the ▁Techn ics ▁SL - 1 2 0 0 . ▁It ▁was ▁adopted ▁by ▁New ▁York ▁City ▁hip ▁hop ▁DJ s ▁such ▁as ▁Grand ▁W izard ▁The odore ▁and ▁A frika ▁B amba ata a ▁in ▁the ▁ 1 9 7 0 s . ▁As ▁they ▁experiment ed ▁with ▁the ▁SL - 1 2 0 0 ▁de cks , ▁they ▁developed ▁scratch ing ▁techniques ▁when ▁they ▁found ▁that ▁the ▁motor ▁would ▁continue ▁to ▁spin ▁at ▁the ▁correct ▁R PM ▁even ▁if ▁the ▁DJ ▁w igg led ▁the ▁record ▁back ▁and ▁forth ▁on ▁the ▁pl atter . ▁Since ▁then , ▁tur nt abl ism ▁spread ▁widely ▁in ▁hip ▁hop ▁culture , ▁and ▁the ▁SL - 1 2 0 0 ▁remained ▁the ▁most ▁widely ▁used ▁tur nt able ▁in ▁DJ