I have a set of component speakers to install in an 04 car, which already has a tweeter in the door.

I was wondering if it would be a sensible idea to bridge the inputs to the current tweeter and woofer to the input of the new crossover, the logic being this would mean a slight increase in power over just wiring the input of the current woofer to the crossover and this power then being split between my new woofer and tweeter.

Did that make sense? Would this be a sensible or stupid thing to do?

Anyone had a similar thought or attempted this themselves?

 

Not quite sure what you're trying to suggest/do here.

With the new speakers, take the signal from the HU into the crossover. The crossover will then send the low frequency signals to the woofer, and the high frequency signals to the tweeter.

Job done.

I expect the OEM speakers have a crossover built into the woofer somewhere and the connection runs from the Head Unit to the woofer and then the tweeter is connected to the woofer - is that correct?

Presumably you're removing both the existing woofer and tweeter and replacing them with the new compononent speakers, which consist of a separate woofer and tweeter?

 

It would be nice to have some extra bass in the s2000....i "think" i have standard speakers (i havent checked yet). so some upgraded components would be great.....but also, i would like a small sub somewhere.....but i dont want to hack about at the plastics, plus i dont want to take up any valuable boot space.....hmmmm.

 

The current plan for wiring in the new components is to take the existing feed to the current woofers and use this as the input feed to the crossover.

I was wondering if there would be any benefit in utilising the input feed to the current tweeter as well by joining this together with the woofer input, the reason being this would provide 2 speakers worth of power to each crossover input rather than just 1 speakers worth.

Quick diagram of what I'm suggesting below:

 

There was a recent thread about a small sub that fitted under the passenger seat, haven't got round to seeing if mine still works before trying to fit it.

 

Someone else will be better qualified to comment on the OEM wiring arrangement, but I suspect that the OEM components will be linked to a crossover somewhere. This may be a separate crossover box, but is more than likely contained within the OEM woofer.

Where does the OEM tweeter wire run to? Is it connected to the woofer?

I'd be very surprised if the tweeters are connected directly to the head unit (this is known as bi-amping btw)

Bi-amping, which is what you are describing, is beneficial, but is dependant upon having 4 channels of amplification.

In my setup, the left and right channels are fed at line level to the 4 channel amp. The amp then sends "2 lefts" and "2 rights" to the crossovers where the frequencies are filtered and thus you get the benefit you are after.

However, if you are using the OEM HU, this is an unlikely scenario.

I'm sure someone with better experience than me of removing the OEM speakers will be able to help out a bit more.

 

Getting good components and an amplifier is an excellent start, and a sub helps things out even more. See my sig for a link to lots of pictures of a nice, clean install.

 

Thanks for your help so far, am not sure whether the the OEM tweeter wire runs to the woofer or back to the HU, would have to be the HU if this suggestion was going to have any benefit.

It's an aftermarket HU by the way.

 

In that case, the only way that you could benefit from bi-amping would be if the tweeters have been wired to the "front" channels on the HU, and the woofers to the "rear" (or vice versa).

Try adjusting the fader and see if that affects the sound. If it does, then a bi amping solution is in place.

However, there must be some sort of crossover somewhere for the components.

Can you tell us what HU and speakers you have, as it'd help.

 

Good plan on the fader, will give that a go!

HU is a JVC KD-AVX40 like this one:

http://www.caraudiodirect.co.uk/jvc-kdavx40-p-7361.html

Speakers are JBL GTO6508C like these:

http://www.caraudiodirect.co.uk/jbl-...8c-p-7193.html

The HU has been installed a while with the OEM speaker set up, I am just getting round to installing the new JBL speakers.