New amp for old components, advice?

[Cornbreadxd 10+ year member]

Ok i've searched the forums for a while and just have to ask cause my search didn't give me all the answers. [old school> I have a set of Infinity 60.5 comps (90 rms 270max) http://www.millionbuy.com/inf609cs.html

and Infinity 9603i 6x9's (100 rms 300max) http://www.millionbuy.com/inf9623i.html they both run 2 ohm so i was gonna grab an autotek 100.4 but its listed as 150x4 rms 2ohm http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=18148

now is that gonna blow my components or will i just have to work the gain, or is it gonna need to be ran 4 ohm instead? They were originally powered by a profile ap1040 http://www.millionbuy.com/prfap1040.html before it was stolen.

sorry for my ignorance but i've just recently really got into researching all this stuff and am still learning.

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[skittlesRgood 10+ year member]

that should be fine. you could work the gain or the volume on the HU. just cause it puts out 150 rms doesnt mean youll be putting put 150 rms all the time. most of the time youll be using a lot less.