system set up

I am looking for a reasonably priced set up using my existng jvc head
unit. My existing speaker sizes are 6x4. I am planning on using 4"
speakers in there place ( i have made an adaptor to fit 4x6 to 4").
The whole idea of the set up is to make it universal and portable, so
I can take it out without leaving holes in the doors, and stick into
another motor, without making any holes.
The 4" will be components speakers. What I would like to know is what
is the best way of achieving some reasonable bass, not low end drone,
more punchy, as the 4" will be limited in responce. The head unit has
RCA outs.
Was thinking of seperate amp to run the bass,but am not sure as to
whether is should be wired in mono , parallel or series or the
difference in running it 4 or 8 ohm. Would i need a crossover and what
are capacitors used for?

"dave" <nthng2snet@netscape.net> wrote in message
news:8a19da97.0408201528.264c7db6@posting.google.c om...
> I am looking for a reasonably priced set up using my existng jvc head
> unit. My existing speaker sizes are 6x4. I am planning on using 4"
> speakers in there place ( i have made an adaptor to fit 4x6 to 4").
> The whole idea of the set up is to make it universal and portable, so
> I can take it out without leaving holes in the doors, and stick into
> another motor, without making any holes.
> The 4" will be components speakers. What I would like to know is what
> is the best way of achieving some reasonable bass, not low end drone,
> more punchy, as the 4" will be limited in responce. The head unit has
> RCA outs.
> Was thinking of seperate amp to run the bass,but am not sure as to
> whether is should be wired in mono , parallel or series or the
> difference in running it 4 or 8 ohm. Would i need a crossover and what
> are capacitors used for?

Alittle confusing about what your asking but anyhow.

You wont get any appreciable bass from a 4 inch speaker, but what middish
freq's you will get (possibly down to ~100hz) will be maximised if you
ensure the space behind the speaker is totally sealed from the front, and
that you apply some sound deadening to the panel to keep it nice and rigid.

Amp these 4inchers with around 75w rms and a cross over set at around the
100hz mark.

Depending on the type of music you listen to, go for a good 8 or 10 inch sub
box, possibly a sealed one for tight punchy bass in the boot, with around
150rms+ available to it.

Tim..