6 x 9's

[WorthingSaxoVTR]

i hope the mods dont mind me posting this, but just to emphasie why 6 x9's are bad

Let's start with the contenious issue of 6x9's mounted in the parcel shelf.

If a system has good front speakers, normally 5 inch or greater, and a sub woofer then the whole range of music can be played effectivly.

If 6x9's are then added in the parcel shelf, and are playing full range the following issues occur..
Bass cancellation, due to the subs and 6x9's playing the same frequencies. It also muddles the sound quite badly. Due to the subs and 6x9's effectively sharing the same enclosure. In some severe cases they can even get destroyed due to the subs pushing too much air around them.

Also in this type of setup the sound is dragged backwards, this is down to personal preference.

If the 6x9's are setup not to play full range they can be useful. If they are set up in a bandpass configuration so they only play midbass. Roughly 300Hz-80Hz then they can add the extra kick which smaller components can't. This is useful for car where getting big speakers up front is a problem. However the sound is still dragged backwards quite badly.

In many situations where midbass can be played from the front it is better in terms of SQ to remove the rear speakers. This way the sub bass cannot be pinpointed so all the sound appears to be coming from the front.

thanks to "www.talkaudio.co.uk" for this info

6x9s on a parcel shelf with a sub in the boot will not work!

Simple demo.

1. Unplug you wires from your 6x9s
2. Set stereo at the normal listening volume as you would have it while driving.
3. Sit on the back seat of the car and look at the cones on the 6x9s. See how there moving! With out wires its a miricle aint it? no its not its the air presure that the subs moving in the boot thats making them move. If there where wired up they would be fighting this presure and you would not be getting the maximum you can from your sub.

Also is audio recorded in four channels errmmm NO its recored in two left and right (exept for the very rare 5.1 audio dvds that are availble) so you only need 2 channels which should be at the front of the car as if you were at a concert would you face the front or the back? The human ear is designed to hear sound at its optimum from the front. The reason you can get away with the sub being out of the way in the boot is that low frequancys travel well where as high frequancys dont.

thanks to dave ward for this