US Merlin MD22

Hello I'm new to this forum. I have a few questions that I would like for someone to answer for me. I have the like the title states a US Merlin MD22. Now every where i have read says it do the following specs Power: 200wx2 @ 4 310wx2 @ 2 650wx1 @ 4. And on the box it says 257 @ 4 ohms and 352 @ 2 ohms. So I want to know the truth, whats the deal? The first thing i noticed is the fuse rating (3) 25 amps, now i know that if a amp has a 60 amp fuse. It will do somewhere from 650 to 750 watts. And the second thing I noticed was the power and ground connectors. Now I know it takes like a 4gauge wire. And the thrid things is that it is made in the U.S.A. so I know that its a powerhouse. I going to compete this year and this is the amp i going to run. So I want to know the real true specs. of what this amp will do. And also with all that power u feed to it will it run at 2 ohms mono. Plus I dont want to be blowing speakers like there is no tomorrow bc the amps to powerful. I have tried google information and it is very very limited. Its like the amp never existed. Oh yeah I did talk to a us tech and he said that it will do 1300rms all day long and said it is very underrated and laugh, and i beter on on to it. Thats all the information he gave me. Thxs for your time, I hope to hear some feed back soon on this matter...