No sound on sub

[ruelsdcz]

mga sir saken may intermitent ung bayo ng subs ko... may power naman then may lumalabas na sound pero ung lakas ng bayo nawawala. ok naman wirings at power. Im using NBN subwoofer ganito ung itsura http://www.sulit.com.ph/index.php/vi...uploadedImages

nagoogle ko lang ung picture hehehe.... thanks mga master

sir...sa amps ang may prob hae it check po.