Hertz HCP 5D

Hello
I have mounted in the car hertz DSK 165.3 (front) hertz DCX 100.3 (rear) I would like to know if they are well integrated with Hertz HCP 5D.
I would also like to add a Hertz DBX 30.3 or JBL S2-1224SS subwoofer, which do you recommend?
Are these two subwoofers okay with this amplifier?

What thickness should I put as a cable from the battery to the amplifier?
What fuse?

Thank you


Hertz HCP 5DHertz HCP 5D
Hertz HCP 5D Amplificatore: Amazon.it: Elettronica


Hertz DBX 30.3
Hertz DBX 30.3 Casse per auto 1000 W: Amazon.it: Elettronica

JBL S2-1224SS:
JBL S2-1224SS Subwoofer Sistema Audio Stereo per Auto 12'' con Esclusiva Tecnologia SSI, Nero: Amazon.it: Elettronica