I was looking to purchase this combo to replace my stockers? I'm not looking to rattle my fillings loose, just want a clean crisp sound.
Current HU is a pioneer avic-d3.

Jl audio e4300
Infinity Reference 6820cs (front and rear)

I know the amp is a older model but getting a killer deal from a friend.
any input or would be a great help.

also
i'm a little confused at exacly what this mean. Don't want to blow up new componants!

RMS Power Rating (14.4V):

• 4 ohms: 70 watts x 4 chan.
• 2 ohms: 110 watts x 4 chan.
• Bridged (4 ohms): 220 watts x 2 chan.
• Bridged (8 ohms): 140 watts x 2 chan.

RMS Power Rating (12.5V):

• 4 ohms: 45 watts x 4 chan.
• 2 ohms: 75 watts x 4 chan.
• Bridged (4 ohms): 150 watts x 2 chan.
• Bridged (8 ohms): 90 watts x 2 chan.

TIA

 

* 4 ohms: 70 watts x 4 chan.

The speakers will handle the 70x4 just fine. Simply hook each speaker up to the appropriate terminal. There are ways to draw more power from your amp but you dont need to.

Sounds like a good setup and im sure you will be happy.

 

RMS is basically standard power rating, not peak. Peak power ratings can be obtained with the amp pulling max current and the signal to the speaker having distortion "noise".


Most amps and especially 2/4 channel amps for full range speakers are rated at RMS and peak power at both 12.5 volts ( battery at rest/idle) or at 14.4 volts (when the vehicle is charging or you are driving). 14.4 volts will allow the battery to provide more voltage to the amp and therefore more power.

Amps provide power based on the electrical resistance "ohm" of the load "speaker". That is determined by the speakers voice coil or how the voice coil of multiple speakers are wired. Most amps are rated at 4 and 2 ohms. Generally 2 ohms forces the amp to provide more power at a cost of more current draw and possible more distortion/noise depending on the quality of the amp.

Some of the new Infinity speakers are created to show the amp a 2 ohm load, receive more power, and sound louder.

Bridging means the 2 channels are combined into one signal with possibly the total of both channels in power. A 2 channel amp may be bridged to 1 channel for a single subwoofer speaker. A 4 channel amp may have a 2 channels in front and the read 2 channels bridged for a sub OR bridged front and rear for 2 subs. Most bridged channels are only run at 4 ohms depending on the quality of the amp.

 

I've been looking at the Infinity Kappa 682.7(I think thats them,6x8). I just ordered some Kenwood Excelon X680's also 6x8's. I do my research on Crutchfield where you can read personal reviews of current buyers of the speakers, then buy off of Ebay. Have to be careful and read the details or you might get last years models!