What amp should I get for these...
2 Pairs (4) of INFINITY KAPPA 682.7CF 5X7" 2-WAY CAR SPEAKERS
2-Ohm
Power range: 2-100 watts RMS
300 watts peak powerfrequency response: 40-25,000 Hz
sensitivity: 94 dB

And what amp should I get for these...
Pair (2) of 8" 2006 Kicker CVR8 Subwoofers
Dual 4-Ohm Voice Coils
Power range 30-200 watts RMS (100W per coil)
Peak power handling 400 watts
Frequency response 25-500 Hz

I'm looking for best bang for the buck for the setup I have above. I don't want to spend more than $300 for a pair of amps. Nothing too spectacular. Just something durable, and not under/over-powering the speakers. Other than my HU, I've gotten everything else. Thanks in advance for the help with this.

 

How about a pair of Arc Audio 2050XXK amps? 50 x 2 for the front speakers and around 230-250 bridged for the subs. Let me know if you are interested. $300 is going to be tough for good quality amps. I would start looking on ebay for used amps. With new amps, maybe Memphis or MTX.

 

I have a Zapco 350.2 (maybe a pair of them). Here is the specs:

Stereo, 4 ohms: 2 x 100 Watts
Stereo, 2 ohms: 2 x 175 Watts
Bridged, 4 ohms: 1 x 350 Watts (more like 480-490 watts)
T.H.D. + Noise: <0.015% @ 4 ohms
S/N Ratio: >95dB
Slew Rate: >29V/uS
Damping Factor: >200 @ 4 ohms
Dimensions: 15"L x7.5"W x 2"H

Thes are the amps I'm using. Just jumping up to a bigger one. It can be seen in my gallery (the glossy black and gold one). If your interested and want some better pics...email me at brypink@***.net. It's more than $150 but well worth it. Ask anyone about Zapco amps, you'll see. Plus, you can use a balanced line with it to keep the signal super clean.

BTW, you will have a hard time finding a pair of good quality amps for $300 like dconder said.

 

I have a question about RMS.

Now, at 2 Ohms, my speakers can handle 100 watts RMS each. Should my AMP match that number? How much power should I be looking for for my speakers and my subs... and how much is too much?

 

While it is not a bad thing to match the RMS of the amp to the RMS of the speakers, it's not a mandatory thing. There is some common sense that has to be used in this equation. Personally, I like to use an amp that has far more power than I need for the job to be done. That way the amp is never pushed to the max. There are sound quality advantages as well, in the form of headroom and related benefits. On the other hand, an amp that is being pushed to the edge of its design capabilities, and thus its stability, will not only NOT perform at its optimum, but will suffer damage at some point if the "pushing" goes too far. This is what happens when amps and speakers are "matched", in terms of RMS. I mean, who doesn't want to push their gear to get the most out of it? This will vary depending on the build quality of the amp. With amps of average quality, this is bad news. Some amps of the high end nature, like the aforementioned Zapco, are made to produce rated power with the output devices operating at far less than their actual capabilties. This is a good thing, both in stability of the amp, and longevity of the amp. This is one of many reasons that high end amps ARE high end amps, and truly are different from amps that SEEM similar. There is almost nothing similar between a Zapco amp that will produce 100 watts RMS and the Pyramid down at the flea market that will produce 100 watts RMS. Having a set-up with an amp that CAN produce much more power than needed simply takes a user who will LISTEN to what the system is saying. If you drive your speakers with too much power, they will tell you if you listen. Remember, RMS ratings are just an indication of the capability of the gear. Chances are you may never play a system to the point that an amp will produce its full rated power, or any speaker be driven with its rated RMS power. I honestly believe that any possible set-ups take an equal amount of common sense from the user. I believe you can never have too much power on hand, IF you set your system up properly, have some sense, and control of the volume ****. Now, having said that, you have to do what you have to do. We're all different, you know.

 

So what he is saying is that you don't have to match the RMS of the speakers to the amp and it is a good thing to have some headroom (more power) with an amp as long as you set it up properly.

97f250 - You always give accurate info, but take all day saying it. Just messing with you man!

 

That's better than the alternative; NOT being messed with.

 

I just reread and noticed you have 2 pair of speakers and 2 subs. Your task of staying below $300 for amps will be even harder as you will need a 4 channel amp and a sub amp. If you are interested, my pair of Arc amps would provide your Infinity speakers with around 110 watts @ 2ohm. At $275 shipped, you would still have to get a sub amp but, would have some of the best amps on the market for the Infinity's.

 

I'll sell you a matching pair of Sony Xplode amps (both 2 channel @ 250 watts max, about 110 watts RMS each) for your highs for $150, shipping included. If interested, email me through this board and I'll set up a BUY IT NOW on ebay, through PayPal, and you can get them. One is brand new in the box, the other is slightly used. They are red in color and nearly square in shape. Then all you'd need is a sub amp.