Up To Date 28++ Dr Ddt Strings Electric Guitar. • 2,2 млн просмотров 4 месяца назад. Ddt strings maintain their intonation at lower tunings far better than any other string ever played or heard. Players say they are so stable it is almost eerie.. 10 13 17 36 52 60. Dr Ddt Strings Electric Guitar - Dr Bass Guitar Strings Rich Tone Music Dr's ddt line was specifically designed to enable players to maintain stable and consistent tuning under any alternate tuning situation.