Ok, no problem. Thanks for the answer.

For those who wants to test if the bass management is right (basically for those who own S550, S550 Encode and S760D, but I guess also for others 5.1 multimedia speakers from Edifier):

You can download this:
https://www.dropbox.com/s/ttvznwxp84iltcd/P...0Noise.zip?dl=0

As you can see, it's a ZIP file containing 2 audio files. Both are the same (pink noise, the easiest way to test a speaker), the only difference is the coding. Both AC3 (Dolby Digital) and 5.1wav (LPCM) are provided for test on both analog and digital connection.
In those audio files, the pink noise is routed to each speaker or pair of speakers. This is useful to test that all the speakers are set correctly (parity) and for calibration purposes. The order for the routing is:

Left -> Right -> Center -> LFE -> Left Surround -> Right Surround -> Left+Right -> Left Surround+Right Surround -> Left+Right+Left Surround+Right Surround

For this test, it is best to use a player which can route correctly the audio. I suggest MPC-HC (https://mpc-hc.org). Set up as Default WaveOut device for 5.1 analog and S/PDIF Out for Dolby Digital (also remember to set the MPC-HC audio decoder to bitstream AC3 over SPDIF). You can also use the analog file in a DAW using ASIO. This is preferred if you want to be sure that Windows or DirectSound doesn't alter anything.

This is what happens when you play the AC3 (Dolby) via digital connection on S760D:
Each channel is played correctly. Pink noise carries also low frequencies. You can clearly hear that when the sound is routed to satellites, the subwoofer is playing bass frequencies as well. Higher volume low frequencies are played when the pink noise is on the LFE channel (as expected).

What happens when you play the 5.1 LPCM via analog connection (I repeat myself, the files are 100% exactly the same, with same pink noise at the same volume): Each satellites plays the mids/high frequencies of the pink noise. You get a somewhat flat sound, with subwoofer almost mute. Subwoofer is working only when it receive the LFE channel.

If you want to exaggerate the effect (so to make it really clear that it's a flaw): Keep toslink and 5.1analog cables connected (from soundcard to S760D) BUT remove the speaker cables. In this way, the unit will receive all the channels from the soundcard but ONLY the subwoofer will work (since the speakers have no cable connected to the unit).
On Digital connection: Subwoofer is always working for each speaker, with higher volume when it plays the LFE channel.
On Analog connection: Subwoofer is mute unless when it plays its LFE channel.

This post has been edited by mp3dom: Mar 29 2015, 06:58 AM

Sorry for the late reply, I'm still in contact with Edifier support.
To get a right bass management, you need to set SW+6 on the controller. In this way, a bass frequency is sent to the LFE that outputs that frequency at right volume. More or less, SW+6 on analog match the SW-0 on digital. Sound is still quite "dry" so to my taste I set SW+8 on analog which provide good and deep bass when needed but not constantly over-bloated. However, I still get problems. For example on 5.1 analog, while SW+6 provide a standard bass-management for frontal speakers, the surround speakers still lacks bass-management at all. Even with maxed out settings (SW+9) if you send a bass frequency to surrounds, the frequency is totally lost. On digital, surrounds have bass management too. Also, the last problem is the static pops on all the analogs and I can't find a way to avoid it.
On this, a future confirmation from John Chaser would be gladly accepted. Try to use it on analog (when you'll receive it, obviously) and tell me if even your unit suffer from this.

The problem on Light = 0 not saved after power off is clearly a "bug" but it's more cosmetic. You have to set it every time you power on the unit (while the other settings are retained).
I'll let you know if there's something new about other "issues".

You mean to use the remote to set the unit to mute and then power off? I'll try. Thanks for suggestion.

Edit: Tried it and doesn't work. Light still re-set to 2 after power on

This post has been edited by mp3dom: Apr 11 2015, 07:18 PM