My brother gave me a MA Audio HK102SX amp as a b-day gift.
Now he says it needs 50 amps to run at the rms, only 30 to turn on though.

So how can I wire it up to run at 50 amps?
It's going into my 94 Grand Cherokee.

 

well doest that mean your batt/alternator have to put out at least 50amps ..im pritty sure your cherokee has more than a 50amp alternator. I think mines a 70amp and thats pritty low. you should be fine...anyone correct me if im wrong.

 

Yea, I think it's a 100 or 110 amp in the truck.

 

then you should be fine. that amp is not that big anyway. 100amp will give it plenty power to run it. just connect power to power and ground to ground

 

run a 4ga power wire from the battery, make sure you fuse it properly within close proximity of the battery. that should get you the most output from your amp, also make sure to have a good ground. if you want more juice on tap bump up to 2ga, do the big 3 upgrade and bump up your battery.

 

what do you mean by a big 3 upgrade?

 

I have the same amp in my Jeep Comanche, exactly the same as a Cherokee, and I have no problems. I would recomend upgrading the ground from the battery to the frame though. It made a big differnce on my vehicle. I do find that the MA Audio amp draws alot of current to make the wattage it claims.

 

big 3 upgrade is upgrading the charge lead to your battery from the alternator, the ground from your engine to the chassis and the ground from the battery to chassis.

 

http://forum.sounddomain.com/forum/u...c;f=5;t=007801

check that link out for the big 3.
I'm gunna try and do that this week hopefully

 

Cool thanks guys.

The MJ is a bit different from a ZJ though [img]smile.gif[/img] but all Jeeps are very similar mechanically.

I just have to find a good ground for it inside the truck. I'll do the big 3 upgrade however the wire going from the alternator lead has a link on it, not sure how to discribe it and it's dark so I can't get a pic. It's a link to disconnect the it quickly from the fuse box.

I've got some 4ga wire and some nice Rockford RCAs sitting around from another system in an old car.