Sound System Questions, 5 quick questions :) Options

[JonCars17]

I have a few sound system questions.

I'm thinking of adding a sound system to my car by the end of May which gives me enough time to save up.

Q1:
What is the point in putting a Sub (8") in both side doors?

Q2:
How much should I roughly look at spending for the system (components in the front, 2 speakers in the back, headunit and a sub 10" with an amp)? I'd like to get one for qaulity and not the extreme bass.

Q3:
What should I look at when choosing a system? the Sensivity aka the dB?

Q4:
How do I calculate how much amp I need

Q5:
What can I do to stop the car from rattling once it is installed?


I'm a n00b when dealing with cars -_-.

[JonCars17]

Does that mean I can have 2 subs per mono amp?

The reason why I ask is because I may want to add another sub later on.

Sorry for all the questions

This post has been edited by JonCars17: Mar 9, 2006 - 9:51 AM

[runriot95]

Does that mean I can have 2 subs per mono amp?

The reason why I ask is because I may want to add another sub later on.

Sorry for all the questions

Yes you can BUT the amp has to be 2ohm stable.

If you look at mono amps on Crutchfield, a lot of them will list a 4ohm and a 2ohm rating, for example 150 watts x 1 @ 4ohms and 300watts x1 @2ohms. What you will do is wire the 2 subs in parallel. This is basically hooking up 2 speakers to the same terminals. It may seem strange that you can do this but you can, as long as the amp can handle the load.

I'm sure you've discovered by now that there are A LOT of different stereo configurations that you can have.
For a very good SQ setup I would recommend 1)a very good head unit 2) as good a set of comps that you can afford 3) a high quality amp ( or amps ) and 4) at least 1 sub.

What I was suggesting in my previous post about running the rears off of the head unit is that MOST people with a good set of comps up front fade heavily to the front so that the rears are just providing ambient sound.
IF you decide to go this route, then why waste an external amplifier powering the rears when they're not using much power? My suggestion is to get a high power, high quality 4 channel amp and use 2 channels to power the comps and the other 2 channels to power the sub(s). Then use the head unit's built-in amp to power the rear speakers.

Again, there are a lot of different ways you can go but YOU have to decide what's the best setup for you.