Help with an amp

ok i was just wondering how to get the most power out of an 801000d mtx amp and if i am running four subs should i just run them all to gether adn then run only ONE wire to the amp??

depends on your subs voice coil setup, beit single or dual.
either way, you can find good wiring diagrams here for the setup you have:
https://www.sounddomain.com/shop/wooferwizard.pl

Find out the amp's RMS power rating with a 2 ohm load.  Then find the combination of subs whose total impedance (wired together) will be 2 ohms, and whose RMS totals sum to the power output of the amp.

You can use one hook-up to the amp with a 2 ohm load.  If you want to use two enclosures, you can also make two connections to the amp.  But the two connections will be paralleled (internally) at the amp...so be sure each of those two loads are 4 ohms each...so that the final result at the amp is a 2 ohm load.

You will find wiring scenarios where the final load comes out to, say, 2.67 ohms, for example.  That is fine to use, as long as the impedance doesn't go below 2 ohms.

-------------
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.