How much does z5400 sold at lowyat, anyone knows of it? and how does it performance like?

For those who have Z906, do you encounter this issue where only the front left and right speakers work fine but If i play the musics with 3D effect then only rear speakers do have very faint sound, no voices though just the music, and can only hear it if you put your ear to the speakers.
However, if i set the effect on 4.1, the sound coming from the rear 2 are good, but i get no sound from center. Sound test from Windows is good, each sattelite speaker and sub can be clearly identified.

Iam on Windows 7 + SP1,
tested on latest driver with Realtek HD and Xfi xtrememusic, still same.

p/s: could it due to iam playing those musics only have stereo channel?

This post has been edited by swgiant: Nov 5 2012, 01:32 PM

I have an old set of Logitech z5400, the amp was spoilt but the satellite speakers still in good condition. Recently i bought z906, so can i plug all the z5400 satellite speakers at the back of z906 amp to make "dual" of 5.1? will it overload z906 amp?

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Added on November 7, 2012, 9:44 pmhow to fully utilize and exploit the potential of z906 and Xfi Xtrememusic sound card so i can play 5.1 all the time.
Currently setup is analog with PAX Master Default tweak 2.35.
When plug jack-RCA, 3D effect make the sounds faint! Why Z906 force me to select the effect?

This post has been edited by swgiant: Nov 7 2012, 09:44 PM