almost any amp can blow any sub if not properly tuned and playing distortion
with those subs you can wire them up for a 1 or 4ohm load at the amp http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=2&I=42#results
the lower the final impedance the lower the sound quality but the easier/cheaper it is to power-- most CEA-compliant brands amps are not stable below 2ohms so they will run hot, constantly "clip" and go into protection mode but some are not (you have to look at the specs, i know RF has one)
the amp needed should have about 1000watts RMS @ your desired final impedance (ohms) and also be CEA-compliant so........
when it comes to car audio nine times out of ten you get what you pay for- and you need to look for CEA-compliant brands which means that the amps have been tested and produce or exceed the advertised RMS wattage with minimum distortion and the subs can handle their advertised RMS wattage also (distortion is the main cause of speaker damage over time)
here are the top CEA-compliant brands
Alpine
Clarion
Infinity
JBL
JL Audio
JVC
Kenwood
Kicker
MTX
Orion
Pioneer
Polk Audio
Rockford Fosgate
its IMPORTANT to know the "REAL" RMS wattage pushing/handling specs of your equipment because if you dont its IMPOSSIBLE to properly match
If you send too much power to your sub, you risk damaging it. The cone of the speaker and the mechanical parts that make it move may break under the stress. Surprisingly, too little power can also damage your subwoofer — in fact, it's actually more common than damage caused by overpowering.
When the volume is turned up and the amp doesn't have enough power, the signal becomes distorted, or "clipped." This distorted signal can cause parts of the speaker to overheat, warp and melt. Not good!
You don't have to match speaker and amp wattages exactly. An amp with a higher output than the speaker's rating won't necessarily damage the speaker — just turn the amp down a bit if you hear distortion from the sub and don't run the speaker at extremely loud volumes for lengthy periods. Likewise, you'll be OK with a lower powered amp if you keep the volume down and don't feed a distorted signal to the sub
you will send the amp into clipping
Clipping
Clipping occurs when an amplifier is asked to deliver more current to a speaker than the amp is capable of doing. When an amplifier clips, it literally cuts off the tops and bottoms of the musical waveforms that it's trying to reproduce, thus the term. This introduces a huge amount of distortion into the output signal. Clipping can be heard as a crunching sound on musical peaks.
that causes distorted sound which will damage your subs
how to properly tune your amp
to maximize clean signal strength from your amp, you need to adjust the gain or input sensitivity settings. Here's how:
Set the input sensitivity controls of your amplifier to their minimum level (counter clockwise).
Put in a CD and turn the receiver's volume control up (you might have to raise the amp's gain just a bit to hear the music).
When you hear distortion, stop. Turn the volume down until it disappears. As much signal as possible is passing from the receiver to the amp. This maximizes the signal-to-noise ratio, and leaves your system less prone to engine noise problems. Keep the volume setting here.
Now turn the gain controls on the amplifier up until it's as loud as you'll play it. If you hear distortion, slightly decrease the gain settings.
Now you've optimized the amp's output with the receiver's volume set near maximum. You can turn the volume almost all the way up and not damage your speakers or amplify distortion. If you're hooking up a subwoofer, a test disc (or bass-heavy CD) is helpful for making final adjustments.