Question: What is the headphone model with a Plastic construction and a Prestige headphone class?
SQL: SELECT "Headphone Model" FROM "2-1601027-2" WHERE "Construction" = 'Plastic' AND "Headphone Class" = 'Prestige';

Question: What earpads does the headphone with Plastic contruction and was succeeded by iGrado have?
SQL: SELECT "Earpads" FROM "2-1601027-2" WHERE "Construction" = 'Plastic' AND "Succeeded by" = 'iGrado';

Question: What are the earpads of the headphone with a Plastic construction, an Unknown sensitivity, and was succeeded by SR325?
SQL: SELECT "Earpads" FROM "2-1601027-2" WHERE "Construction" = 'Plastic' AND "Sensitivity (dB)" = 'Unknown' AND "Succeeded by" = 'SR325';

Question: What is the headphone model which was succeeded by SR325?
SQL: SELECT "Headphone Model" FROM "2-1601027-2" WHERE "Succeeded by" = 'SR325';