Need help with amp

Ok well here is the deal, I'm pretty new with car systems and all and diddn't really start looking into them until a few months ago. I'm looking for some help from people that know about this stuff, thats why I came here.

I have a 97 Chevy Lumina and I just recently upgraded out of the stock speakers and got 4x new Pioneer 5 ¼" 2-Way Speakers.

I will be getting Two 12" Eclipse SW61248XD's subs from someone for free and will also be getting a Eclipse EA2000 2/1 Channel Amp with it.

The specs on the Subs look like this:

SW61248XD 12" Specs:
o Model - SW61248XD
o Size (In.,CM) - 12, 30.5
o Impedance (OHMS) - 4 Dual Coil
o Max Rec Amplifier Power (WATTS PEAK / RMS) - 1000 / 500 watts
o Peak Power Handling - 1000 Watt
o Frequency Response - 28 Hz - 250 Hz
o Sensitivity - N/A
o Woofer Material - Aluminum
o Surround Material - Santoprene
o Top Mounting Depth - N/A
o Bottom Mounting Depth - N/A
o Mounting Diameter / Length - N/A
o Weight - 15lbs each


And the specs on the amp:

o Digital Hybrid Power Capacitor
o 25 Farad
o Digitial Blue Display (Amperage/Voltage Meter)
o Blue LED Lights
o Low Profile Mounting System
o Chrome Mounting Brackets
o Working Voltage : 16DCV
o High current, high efficiency MOSFET power supply
o ?Easy Tune? top-mounted controls
o Sleek, low-profile design with front mounted input and output terminals
o Variable 30-500 Hz 18 dB high-pass crossover
o Variable 50-500 Hz 18 dB low-pass crossover
o Variable 0-8 dB Bass Boost
o Flush-mount wire terminals
o Illuminated Eclipse logo power indicator
o Clipping indicator LED
o Amplifier Type: 2-channel
o RMS Power @ 4 Ohms: 60W x 2 @ 14.4V
o THD at 4-Ohm RMS Power: 0.05%
o Bridged RMS Power @ 4 Ohms: 175W x 1 @ 14.4V
o Speaker Level Inputs: no
o Preamp Outputs: yes
o Built-In Crossovers: HP/LP
o Bass Boost: 18 dB
o Frequency Response: 20-20,000 Hz
o Signal to Noise Ratio: >90 dB
o Fuse Rating: 30 amps


Now I have a few questions:

1.) Are these subs/amps of good quality?

2.) Is the amp that I'm getting going to be able to power the subs nicely or should I get a new one? I'm not really looking to spend money on a new one so I'd like to stick with this one if I could.

3.) Will I need to get another amp to power the speakers inside the car? I'm really not sure how it works but I've heard it's better to hook your speakers and subs up to amps to make it sound better?

4.) Not sure if this quesiton belongs here, but would a new (better) altornator improve the performance of this system? Right now my car lights flicker even without the system hooked up yet, so I figured it could be the alternator going bad and once I hook up the subs and amp it would probably make them flicker even worse.

Any help would be greatly appreciated, and remember I'm a newbie to this so try and keep your words simple!

 

Ah ok, yea I think I'm going to keep the amp I have now for my front speakers.

Hmmm ok, I'll look into that sub. The price isn't really a problem but I was kind of hoping to be able to stay under $300. Someone told me a Orion D2400 BNIB would be real good for the price to make these subs sound good. What do you think?

Also, what do you mean by upgrading the "big three"? I'm guessing that has to do with the alternator and some other things in the car to help the sound system run correctly? It's a 97 Chevy Lumina, so I figured I might need to upgrade some things in it if I want to run a good system.

Thanks

 

So pretty much if I upgrade the wires to my alternator, battery, etc. I should be ok with the sound system?

Or would upgrading the alternator all together be a better idea?