I have a fairly nice deck in my car, and I few months ago I replaced my stock speakers with some Pioneer speakers.
Here are the specs on the 4 speakers I added (2 front, 2 rear)
Max. Music Power (Nominal) 140 W (25 W)
Cone Material IMPP
Frequency Response 40 Hz to 26 kHz
Sensitivity (1 W/1 m) 89 dB
Impedance 4 Ω
Crossover Frequency ―
Mounting Depth 1-13/16"
Cut-Out Dimensions 4-3/4"
The problem is, my battery cannot power the speakers. When the volume is too loud, the whole unit shuts down and restarts particularly when there is a bass drop. Currently, I have the fader set to front, so it only needs to power the front and I can turn it a bit louder.
So, I need to buy an amplifier and I want to buy a subwoofer later on. From what I've read, I will need a 5 channel amp to power 4 speakers and 1 subwoofer. From what I see, the cost of a 5 channel amp is extremely expensive ($500+), so I'm looking for other alternatives to my set up.]
For example, if I wanted to add the following sub later on:
Peak: 400 watts
• RMS: 200 watts
• Impedance: 4 ohm
What kind of amp would I need to power the speakers and that kind of subwoofer?
Also, how hard is it to install an amplifier my self? I may just buy a used one and wire it in myself.