bos ad bbrp hal yg pgn gw tny nih

-gw mau bkin kosmetik yg pke 2 sub kna brp?bntuknya simple cm sub kanan kiri
-monoblok gw cello yg ab class sm sub gw performa 12".ad yg perlu d ganti ga klo gw pgn pke 2 sub?
-biaya total bos

thx bos