Ok, First u have to tell me the model of ur amp ?
I guess its around 150 watts RMS and 300 Peak ( i wont know until u tell me the Model ).
U can add a Pioneer 10" 307 D2 to it and make it sound great in a ported box but if u want something on a better level go with a 10" Kicker L5. Good HU u have and Just tell me the Model and i will be glad to help.