Don worry about that definely way much better than Xonar U1. I own U1 and pcm2704.
And this dac is better than the basic pcm2704. So for sure it's a major upgrade for your C3.

Only connect the green 3.5mm jack to the DAC? how about the yellow and black 3.5mm jack?

Look. There's only one output socket on that DAC. You can't squeeze 3 jacks in there..

That's what I ask earlier....

So, you'll get 2 channels

According to your question, it can be used.

So i can connect the center only, without the front and rear speakers?

Hi as you can read above i think this SC is not intended for a 5.1 and the only workaround would be using the matrix button mentioned above (i've never played with anything above 2.1!, so pardon me if I said some crappy stuff )
This USB DAC only has 1 x 3.5mm jack and for a 2.1 setup, correct me if I'm wrong, just trying to help here

From your Z640, this is what you mean with the 3 x 3.5mm jacks (My guess 1 x center, 1 x front, 1 x rear)


I think even if you have this converter, it would not do much of 5.1 and still intended for 2.1, that's why the use of Matrix. If you mod it with this, the sound still will be 2.1 on each position, and either too loud or too low volume. About how good would the Matrix be, I have no idea and need others to help you on this


Maybe need someone who has tested this card on a 2.1 setup and above and let you know how it would sound

This DAC only has 2 channels.

Means only the green wire applies. You don't need the rest.

You won't use this for multichannel gaming because it was not designed to do so. All music files are encoded and recorded in 2 channels, so anything more is moot.

Is there any software available that can do a conversion to (pseudo) 5.1?

I don't think so. Because it's pretty much hardware limited. The conversion has to be done on the hardware itself. The speaker must be capable of converting to 5.1.

However, if you have a sound card with multi channel output but a 2 channel music file, you can choose to do software conversion.

In that case, it would be awesome, hope TS could bring in more unit at the same price. By the way, I have yet to get the C3 but already start looking at things to improve it.
Anyway, what RCA cable and speaker to speaker cable is an upgrade for C3? Belden Cat5e cable with Neurik connector that being sold here ?

The green one is for front speakers, black is for the rear, orange for center. Btw, here's a direct quote from Z-640 manual.


Here's the link to the manual that I found.

Hi i am sort of new in this field may i know which DAC to get for my laptop (ausus u45) my budget is around Rm200.

How much does this small dac cost?

This little lovely monster cost here >> http://forum.lowyat.net/index.php?showtopic=1717494

I've 2 questions :

I'm getting a Harman Kardon SoundSticks III, using it on a Macbook Pro 2010.

1) Would this DAC improve the sound quality of the Harman Kardon. I'm more into music listening and movie. Less on Gaming.
2) Can I still control the volume through my Mac OSX? Or only though speaker?

Regards

Will it be good combo for senn HD280?

1. Give it a try
2. You can control volume on the media player itself and the speaker. On Windows, main volume controller has no effect, not even mute. I believe it's intended to preserve line-level output with no resolution loss from software volume control.

ok thanks

Do you mean the volume control on windows that can be adjusted at the bottom right does not affect the sound quality?

It simply does not work.

Anyway, even if it does, it affects quality. Though apparently still usable for many people.

Digital attenuation causes loss of bits, so an amp is definitely recommended to get everything from it .