i have some rockford fosgste punch series speakers in the back and some polk audio db's in the front i need a good cheap amp to power them becouse my blapunkt casablanca CD51 aftermarket HU just doesnt cut it, what kinda amp should i get i was thinking a rockford fosgate punch amp for about 80$ off e-bay .

 

Any good quality amp will do. Now, the only thing is...are you powering both sets of speakers off ONE amp? I'm assuming that both sets of of speakers you have are 4 ohms. So, if you power them both with one amp, you have several choices on how you gonna run them and power them.

1) Amp can be a 4 channel.
2) Amp can be a 2 channel that can can handle 2 ohms "stable" with speakers wired in parallel.
3) Buy 2 seperate amps (2 channel) to power both sets of speakers.

I would go with option #2 because it's much cheaper and reliable if it's a good quality amp which can handle the load. Four channel amps are somewhat pricey, and buying two amps are somewhat the same, too. I have a two-channel Kicker amp powering 2 sets of components (front and rear) driving 2 ohms and sounds awsome. I had it for about 3 years and never had a problem. Good luck!

 

OR you can go to crutchfield.com and check out the the profile amps. They are great for the cheap price. You also get customer service, something ebay won't offer. I think they have a 80watt@ 4 ohms x 4 channel amp for $110. The db's will only handle 60 watts rms so you'll have to watch the gains, but that's the only downside that I can think of.

 

get an elemental designs amp. they aren't expensive and work really well.