Ok i can downmix from stereo to mono in the control panel
but you only hear that on the monitors
I would like to hear in the Heaphones connected to my interface
I know there are work arounds but i just want to drop a VST on the Master Channel
and switch on and off very simple

so what VST can I use

 

Anything from iZotope, like Ozone or RX, has a mono button.
There are even utility plugins that do this.
And sooo many other plugins have this too.
Logic has simple utility plugins that have this.
Doesn't Cubase?

 

bx_solo free bx_stereomaker I think a million plugins from bx have this feature
Kelly Industries – Stereo Tools
https://www.soundspot.audio/downloads/msw1-mono-stereo-audio-plugins/

not only for mono but anyway crazy tool for much more
https://letimix.com/products/gainmatch

 

Last edited: Jan 6, 2021

Im not sure if this is out of topic but i want to suggest you to take a lot at the dearVR monitor plugin. it has everything for your headphones mixing needs. I was skeptical at first, but now I cant mix without it if using headphone, and turn it off when im back to the monitors. as per your question, yes it has mono downmix as well.

 

Well it's not, but if you weren't sure you shouldn't have posted it!
But seriously, as I implied above, IF Cubase doesn't have a mono plugin utility, I'll be very surprised!

 

Studio One has mono mointoring button at buss

 

1. Me wonders why Cubase's Control Room does not work with your headphones. You must have routed this specifically.
2 .

does not have a mono switch, only L/R and M/S
3.

is no longer available, at least I couldn't find a working link.
4. SoundSpot MSW1 Mono Stereo Widener does in deed work flawlessly, I didn't know of it before. ATM it's free on their homepage, but you'll find it at AZ too. And it looks like this is the only one available and made just for this purpose.
5. HOFA 4U has the Meter, Fader & MS Pan tool, but you need that effin dl manager.

 

just looking for a button to push on the master bus to go Mono / Stereo to check for mono working ok on the bass,
in Cubase you have it only in the Control room which only goes to the Speakers not the headphone mix at least that i know how to do
I dont want to add an effect or anything to change the sound just a simple Mono Stereo button on the Master Bus
Cubase does not have it

 

@Baxter

I'll leave you guys to it...

 

Lol. In worst case scenario one just have to pan (mixbus/master) L and R channels to the center (and not use a plugin at all). Also, most monitor controllers have a mono button.

 

Wasn't boz Panipulator 2 one of go-to tools? (check mono summing; L/R 0dB, L/R -3dB, L/R -6dB, L, R)
..and yp, imo every daw (should) have a tool like this

 

Thread Solved Brainworx BX Solo did it Thanks Baxter.... just push button Stereo goes to Mono
CUBASE does not have this feature not even in the gain section dont know why
only mono is found in the control room that goes outside to speakers as final output

 

A1AUDIO.DE - A1StereoControl