Thread: Using Dist Block And Connecting Subs

Here is a picture that might help you in hooking up your amps and speakers. Hope it helps.



As for your other question; if your distribution block can handle two 4 Ga cables then go for it. But, I would consider upgrading to a 2 Ga or even 1/0 Ga supply wire running to your distribution block and battery sometimes in the future.

The fuse at your battery is basically protecting your cable running from the battery to the distro block and not neccessarily your amps or equipment. If your supply cable shorts out to ground, it would get extremly hot and could catch fire or ignite your carpet/upholstery/seats/girlfriend etc...

A 60 amp fuse should be the right size for your 4 Ga supply wire. Use 100 amp fuse for 2 Ga. 120 amp fuse for 1 Ga and 150 amp for 1/0 wire. The danger with using a 100 amp fuse with a 4 Ga cable is that the fuse might not blow and let the cable overheat and do bad stuff to your car.

If you decide to get a distro block with fuses for each circuit, then use a 20 amp fuse for your 8 Ga cables.

Depending on your wire strand count, I see no problem using up to 150a fuse for 4g wire. I have a 1200w amp with this exact setup. 0g wire can run 250-300a. You don't need to split into 8g wire from the distro.

Best way to do it is start from the amp... the mtx has three 30a fuses. So, you know that it draws less than 90a at full tilt. That means a 4g power wire is plenty. Now simplify your life and just continue, meaning more 4g wire with the second amp and another 100a fuse. The fuses protect the wire, not the amp. So always use a fuse that works for the wire's capacity.

Anyhow, seeing as how both amps will draw less than 150a at full tilt, a run of 4g from the battery is fine (assuming you have semi decent power cable).