Talk:Type 4 Passive Sonar/@comment-34343339-20180629211326/@comment-30501447-20180630062505

I have 4 (1 from quest, made 3 like you). Mostly for leveling and sparkling CL/DD. I think that's enough for an army of 1 sonar DC DCP :-? and Yuubari can use 2 sonars DC DCP. If they're no longer needed I'll just merge the 3 into the +6 one.

They're not very important in early event maps when you have an entire fleet dedicated to ASW, and in other maps you only can afford 1 - 2 ASW ships. So just for event, 2 are enough IMO (if you plan on upgrading then you'll need more)

These sonars helped me immensely in quests like S rank 5-5.