Sub Amp Needed

As pimpincavy said, using three SVC 4 ohm woofers creates a situation where you will have to find a high quality, high current amp that would perform at the low 1 ohm impedance you will be putting on it.

Using two of the subs, instead of three, allows for a more useable impedance of 2 ohms.  This will allow you to choose from a broad range of amps:  class D mono amps or 2 channel amps.  The wiring above shows connection to a mono amp.  This MTX Thunder amp would fit the bill to power two of those subs, and not run you very much $$.

If you want to use the three subs, you can use this Hifonics mono amp, which will give you a true 415 watts at 1.34 ohms. 

Your three subs are low power capability woofers, at 150 watts RMS each.  You want to shoot for matching power output of an amp to the RMS of the subs.  As you can see above, how you connect the subs dictates the ohm load on the amp....which then dictates power output of the amp.  Using three subs, you want to shoot for about  500 to 550 watts @ 1 ohm.  Using two subs, the number would be 300 watts @ 2 ohms.

I don't think your talking about a realistic matchup between amp and sub, quality or power-wise.  If you want to use an amp that has 25% more power to the woofer than the woofer will comfortably perform with, you had better start doing research on proper setting of gain using a digital multimeter and professionally recorded test tones.  And you didn't post what subs those are, but at 150 watts RMS they are likely not in the top tier of subwoofers available these days.

You have to build an enclosure, or separate ones, that is properly mated to the subs.  By the time you do that, your choice of subs will be an investment in your system.  Since you already have the woofers, but are looking for an amp...it would seem wise to match the amp to the subs.  But if you want to start out fresh, think of what your budget for equipment will be.

I have given the best advice I could give to you in the previous posts.