Need some help with my Dodge Challenger build

[SICKSPD]

So my plans have changed a tad. I'm going to run 2 sundown audio sa-8 v2s. Originally i was going to run an audio technix 1200.1 but they apparently just discontinued it. Im limited in power options because I dont want to change the alternator (though the stock is rated at 160 amps) and the big 3 upgrade is unreasonably difficult since the battery is in the trunk. Im going to swap my battery out to a xs power d1200 but my issue is the amp situation. Im stuck between the ct sounds 900.1, the ct sounds 1400.1 or a hifonics brx1100.1. the subs are rated for 500 a piece but can handle more, Im just worried about if my cars electrical system can handle 1400 watts plus an eventual say 500 to 600 watts for a multichannel amp. Will the difference in a 900 and a 1400 watt amp be noticeable?

[afrakes]

The hifonics amps are super power hungry so unless you upgrade your electrical there's no point in choosing that one. Personally, I think you need to find a way to do the big 3, upgrade ur batt, maybe add one more, and go with the 1400. Just my .02

[SICKSPD]

The hifonics amps are super power hungry so unless you upgrade your electrical there's no point in choosing that one. Personally, I think you need to find a way to do the big 3, upgrade ur batt, maybe add one more, and go with the 1400. Just my .02

Well the issue with the big 3 is how difficult it is to rerun the power from the alternator to the battery in the trunk. The engine ground also is a huge difficulty because its so tight under the hood. I can easily change the battery ground to 0 gauge. The battery itself will be replaced with the XS battery which claims to have a maximum output of 2600 amps. If I got the 1400 and turned down the gain would that possibly mean it would put less of a strain or is it still drawing the same amount of power regardless of the gain setting?

[afrakes]

The gain just matches the amps input voltage with the output voltage from your source. I'm not sure but I think the amp will draw the same amount of current regardless.