hey everyone. i have a Polk MOMO sub (500 watts rms, single voice coil 4 ohm) in my 93 accord. i am trying to decide between the Kicker KX500.2 amp and the Rockford Fosgate 501s amp.

Kicker Specs:

RMS Power Output (Watts x Channels) 125 x 2
Frequency Response 20-20k Hz
THD at Rated RMS Power 0.085%
Signal to Noise Ratio 95 dB
Input Voltage 13.8v
Peak Power Output (Watts x Channels) 250 x 2
Power at 2 Ohms (Watts x Channels) 250 x 2
Bridged Power (Watts x Channels) 500 x 1
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2

RF Specs:

Performance
RMS Power Output (Watts x Channels) 125 x 2
Frequency Response 20-20k Hz
THD at Rated RMS Power 0.05%
Signal to Noise Ratio 100 dB
Input Voltage 14.4v
Peak Power Output (Watts x Channels) N/A
Power at 2 Ohms (Watts x Channels) 250 x 2
Bridged Power (Watts x Channels) 500 x 1
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2

any oppinions between these amps would be greatly appreciated. where can i get these amps w. some type of warranty and a good price? ive had bad lucks w. blowing amps and want a warranty, thats important.

sorry for the long post but thanks,
Raj