Apparently the 992 is the best replacement
https://audiokarma.org/forums/index.php?threads/2sa725-726-transistor-question.724890/
992 pin out shows ECB
https://www.onsemi.com/pdf/datasheet/ksa992-d.pdf
Where 725 shows BCE
https://www.alldatasheet.com/datasheet-pdf/view/1164012/ETC1/2SA725.html...