[HELP] SMSL SU-9 Pro, Topping A90 Discrete, Topping LA90 AB ... no sound

[metasharp]

Hello,

I'm trying to run my new equipment but as of now I get no sound.

- All firmwares are up to date
- I installed on my Windows PC the SMSL 5.5.0 driver
- I connect then turn on all devices (PC -> usb -> SU-9 Pro -> RCA -> A90 Discrete -> XLR -> (front) DCA Stealth & (back) LA 90 AB -> copper wire -> B&W 685 S2)
- Only USB mode displays a connection (44KHz for ex, other say in orange No signal)
- I get no sound in either headphones or loudspeakers (44KHz changes to 192KHz if i try to run in foobar a 192KHz file)

Any help would be appreciated.

 

[Dunring]

If the Topping driver control panel is checked it should show the DAC which could tell you something. If it's not, maybe try swapping out the USB cable or try it with another device. The 5.5 driver will install even if the DAC isn't hooked up or turned to the right output (it will show "no device connected").
It sounds like the DAC isn't connected, bad cable most likely. Just for testing, hooking it up with optical to the output port on your onboard sound could tell a lot also. Most SMSL DAC's I've had like the M300 came with one (albeit a short one).

 

[metasharp]

If I plug the DAC SU-9 Pro in XLR on the LA90 AB i get sound on the loudspeakers.

If I plug the DAC to A90 discrete either in RCA or XLR, I get no sound

 

[metasharp]

Ok got sound after raising volume like hell.

With RCA inputs I need to put the volume in windows at max, in dac at max (+2DB), and in A90d at max (99) + high gain and it's barely ok.

RCA input produces a distorded music..... sic! Especially at max... which is the minimum to have a decent volume.
XLR is by far cleaner but even at +2, 99, high it's still quite a not the expected volume.

 

[metasharp]

If I plug my DAC in RCA on my A90d =>low volume + lot of distortion
If I plug my DAC in XLR on my A90d => windows volume at 100%, DAC @0db (2db is max), gain in high, volume at 90 is ok on my Stealth. But even at +2 at 99 (all max) it's not super loud... sometimes it's even say it's barely an average volume.

I tried a sonometre app of my phone put on the speaker : strangely the stealth outputs more db than my bluetooth B&W PX7.... but I would swear at ear the B&W (60db) was at least 2 times louder... impossible to keep the headphone on whereas the Stealth felt at a moderate volume (62db).

I don't get it.

 

[metasharp]

Honestly I'm quite disappointed by the low volume/presence? .... My BT @60% of volume feels 40% louder than the stack at full volume.

 

[sq225917]

What music software are you using?

 

[Jbroen]

There is an output menu in the SU-9 Pro where you can turn on both RCA and XLR or either one or the other. You may want to fiddle with that.

 

[MechEngVic]

Any update?

 

[metasharp]

yes it's solved, button b for correct volume curve

 

[MechEngVic]

yes it's solved, button b for correct volume curve

Thanks, I'm considering getting the SU-9 pro