RoomFit and external Subwoofer

[NickC9]

Hi,
I am using a Wiim Ultra with external DAC (Chord Qutest) and external AV Receiver (HK AVR230). I can switch between stereo audio and surround sound quite easily, except currently have the sub attached to the Wiim and have to plug it in to the receiver. If I connect the subwoofer direct to the external receiver can I still use Roomfit to correct lower frequencies?

Googling seems to suggest "low-frequency correction is effective only if the Ultra output drives the sub directly", but the front speakers are not connected to the Wiim either but these can be calibrated ok.

I realize I may have to have different sub settings for either hifi or cinema mode and I can adjust the sub using its own controls - but what would be best to allow Roomfit to correct below the Schroeder frequency marker. Thanks in advance

 

[dominikz]

If I connect the subwoofer direct to the external receiver can I still use Roomfit to correct lower frequencies?

Yes - assuming you connect one of the Ultra outputs to one of the inputs of your receiver, and you disable the Ultra subwoofer output in the WiiM Home app.
In that case RoomFit will work as if full-range speakers were connected to its output.

 

[NickC9]

@dominikz Thank you, so as my Wiim is connected via usb to the DAC and then DAC via rca to the receiver it should calibrate the full frequency range. I will give this ago, realising I may have to change settings for cinema then back for hifi - perhaps.

Thank you for your reply and information

 

[dominikz]

it should calibrate the full frequency range

Of course you can still select the frequency range where RoomFit will actually perform correction, e.g. 20Hz to 300Hz.
Note that I've personally never tested USB output on my WiiM devices, but I suspect it works like any other output.

 

[NickC9]

@dominikz thanks again, I will do this