NO Sub output when using Line In.

[Theta]

so my wiim ultra is set up with 2 sources. ROON via ethernet, and a CD player via LINE IN. Anytime I stream from ROON I have no issues, sub comes on, the world is good. Then if I want to listen to a CD and switch to the RCA input, the SUB does not come on. What am I missing?

 

[Mr Ee]

I just gave this a shot, and oddly, when plugging the CD in directly the sub works! I don't get it lol .. a line level input is a line level input yet one of them is producing no sub output.

Earlier you wrote 'then a pre amp out is going to the wiim'. Is this a line level or variable level output?
i.e. is the wiim getting a low volume signal? Is it maybe not loud enough for the sub?

 

[Theta]

Earlier you wrote 'then a pre amp out is going to the wiim'. Is this a line level or variable level output?
i.e. is the wiim getting a low volume signal? Is it maybe not loud enough for the sub?

I ran the pre-amp at 100% vol.

 

[harkpabst]

The volume on the Ultra is fixed (100%)

I ran the pre-amp at 100% vol.

The pre-amp and the WiiM Ultra at 100%? That must have been pretty loud.

It would be helpful if you could describe your setup in full detail, naming all the components. This is most likely a configuration error. Are you using the Ultra's volume control with Roon?

 

[Theta]

The pre-amp and the WiiM Ultra at 100%? That must have been pretty loud.

It would be helpful if you could describe your setup in full detail, naming all the components. This is most likely a configuration error. Are you using the Ultra's volume control with Roon?

 

[harkpabst]

Yes.

 

[Theta]

I only put the pre up to 100% just to make sure, I lowered the volume on the power amps first (3 in total), then gradually turned the one driving the sub all the way up, and there was nothing but silence.
The setup consists of the CD player which is connected directly to pre-amp, then out to 2 power amps for main L&R. Then I have the pre-outs from the pre-amp going into the wiim ultra RCA inputs. Then the sub out from the Ultra going into a 3rd power amp dedicated to the sub.

 

[harkpabst]

So, you have (at least) three different places you can control the volume? That makes it potentially more difficult.

The output level of the WiiM Ultra's subwoofer output will always be directly proportional to the level of it's stereo output in use, be it the line output or any.digital.output. You can control the ratio by setting the subwoofer level from -15 dB to + 15 dB, but that's it. This ratio almost for sure must be set differently when using line out vs. a digital out.

If you don't want to share your system details or how you're listening to Room that's all fine. But I'm this case we can only give generalised advice, you'll have to evaluate for yourself.

 

[Theta]

So, you have (at least) three different places you can control the volume? That makes it potentially more difficult.

The output level of the WiiM Ultra's subwoofer output will always be directly proportional to the level of it's stereo output in use, be it the line output or any.digital.output. You can control the ratio by setting the subwoofer level from -15 dB to + 15 dB, but that's it. This ratio almost for sure must be set differently when using line out vs. a digital out.

If you don't want to share your system details or how you're listening to Room that's all fine. But I'm this case we can only give generalised advice, you'll have to evaluate for yourself.

I found a way to get the signal to the wiim, but the delay on the wiim's output is too large for me to try and match up. I've decided to go with a an outboard crossover instead.

 

[harkpabst]

Yes.