[RAC]

Originally Posted by JayD

I think it may have just been kept there and not installed. At one time, i had oved 10 pair of speakers in my car. Not connected, just transporting. So anyone looking into my car would see a lot of speakers kept ulta on the rear parcel tray! lol!

Possible but doubt it since they were placed/spaced perfectly as for a normal install on the rear tray.

[shrivz]

You should've taken a picture!

[RAC]

Originally Posted by shrivz

You should've taken a picture!

Sorry guys. I wanted to. But did not think wise since the traffic started moving and especially with my family (read - child) on board.
It was something I noticed only for a few seconds when the traffic started moving.

[ramzsys]

Nothing funny here guys....in my fiat, a 6x9 pair at the back. One of the speaker started to give krr..krr sound when turning up the bass.So today i thought of doing something funny and inverted that speaker. The bass response i am getting now is mind-blowing....The Krr Krr is also not heard.

i also have front speakers, so i dont mind the loss of mid-tones.

[ramzsys]

so, this is what i have done, though accidental.
Isobaric

First, i inverted both the 6x9s. No big sound.
Then i inverted only one.
the boot of the fiat is the box here.

Believe me guys, i am getting a very deep, rich bass!!!!

[Jaggu]

This is for woofers right (isobaric) i have it in my home system, but what about a 6*9 2 or 3 way speaker, what about the mids and highs?

[greenhorn]

Originally Posted by greenhorn

wonder if it was a diy Isobaric setup

Originally Posted by ScarySkulls

For a Sub, Ok.
But a 6*9? What happens to the mids? Highs?

Originally Posted by ramzsys

so, this is what i have done, though accidental.
Isobaric

Originally Posted by Jaggu

This is for woofers right (isobaric) i have it in my home system, but what about a 6*9 2 or 3 way speaker, what about the mids and highs?

It's deja vu all over again !

I guess he's just happy running them as a sub, and the passengers dont care

[ramzsys]

Actually i did a very cheapest install, for i feared that the diesel engine and the silencer(or the lack of it) in the fiat 137D will eat up the ambience of the sound.

USB/FM player(local) 900 bucks
Reconed pioneer TS 6995 650 bucks

For the front, i paralled the output to a pair of creative(PC speakers) from the 4.1 setup, (since i dont use the rear speakers at home).

Initially, the wiring of one of the woofer(6x9) was out of phase. So, it gave good bass at isobaric setup. After reading the stuff, i changed polarity, and reversed to both facing up position. The bass is the same level as in the isobaric setup.

HELP:
Is there any way to block the low frequencies to the creative speakers at front??( i think i need to parallel a capacitor to the speaker, but just to confirm).

[greenhorn]

a series capacitor is used to block bass

[navin]

Originally Posted by ramzsys

Is there any way to block the low frequencies to the creative speakers at front??( i think i need to parallel a capacitor to the speaker, but just to confirm).

put a 470uf cap in series with the speaker it should block all the bass. if you want more bass reduce the value to 220uf.

[Sam Kapasi]

Originally Posted by navin

put a 470uf cap in series with the speaker it should block all the bass. if you want more bass reduce the value to 220uf.

Navin mean to tell yous to put a bipolar capacitor.

In case bipolar is unavailable in that value, use capacitors of twice the desired value and put them back to back. Example if you want 235mfd, use two 470mfd back to back. Capacitors reduce value in series, unlike resistors. Similarly, capacitors increase value in parallel, also unlike resistors.

Join both the negatives. Input from one positive and output from the other.

[ramzsys]

thanks everybody, i will report developments later.