Question: Which Sampling Memory/Upgrade-able has a rate of 16-bit 44.1kHz?
SQL: SELECT "Sampling Memory/Upgrade-able" FROM "2-1354538-1" WHERE "Sampling Rate" = '16-bit 44.1kHz';

Question: Around what time frame release a Sampling Rate of 12-bit 40kHz?
SQL: SELECT SUM("Release Date") FROM "2-1354538-1" WHERE "Sampling Rate" = '12-bit 40kHz';

Question: How much is a product with a Sampling Rate of 12-bit 40kHz?
SQL: SELECT "Price" FROM "2-1354538-1" WHERE "Sampling Rate" = '12-bit 40kHz';