Simple Audio Upgrade

[aveosummit]

Ok so since I am new to car audio I have a couple questions. As far as amps go would something like this:

NEW 1200 WATT 2-CHANNEL CAR AMP AUDIO AMPLIFIER +REMOTE - eBay (item 110593832679 end time Nov-01-10 14:44:09 PDT)
....

Avoid that amplifier it does not do rated power (specs don't match real world output)
Specs say:

• RMS Power Handling @ 4 Ohms: 175 watts x 2
• Bridged Power Handling @ 4 Ohms: 1200 watts x 1
• Fuse Rating : 15A x 2
• Amplifier Class : AB

Real world numbers
Average car voltage 12.5-13.1.
@ 12.5 you would see
12.5V x 30 A (amp fusing) = 375W
375W x 66% (high quality class AB amp efficiency-best case scenario) = 247.5W
247W / 2 channels = 123.75W max per channel at 4 ohms.
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Now on to system design. When you say you are missing bass you are actually missing midbass (freq response between 50hz and 250hz).

Step 1:
To fix that I would first suggest upgrading your front speakers to a 2-way 6.5" component set.

Step 2:
Then if you need more of the lower frequencies upgrade your head unit and amplify the front components.

Step 3:
If you still need more bass add a 12" subwoofer but feed it the same amount of power you are feeding your components and your system will sound amazing.


See the chart below for a picture reference of speaker response.

You do not have to follow my step program, just how I would suggest you deal with the opportunity for better sound.

Let me know your thoughts! Love to answer any questions you may have!