I want you to solve the QC power supply startup

If you turn on the power strip or power transformer switch with the adapter connected
I want you to solve the problem that QUAD CORTEX starts.

Even when not using QC
I’m in trouble because the power turns on

I want you to be able to start with the QC switch even if you turn on the power tap or power transformer switch

I agree. The unit should turn on with the switch, not when you apply power to it. This is a real pain live because you want everything connected and ready to go, but don’t want the unit on yet. This should be corrected in my opinion.


So……help me to understand PLEASE……before I drop $1,800…… the On/Off switch in the top left corner DOESN’T WORK?

I mean if the power switch is off, and you plug the power supply in; will the unit-as a whole- automatically “turn on” or “be on”?

Confuzed in CBus

It‘s more like a soft button, not a switch.

The unit starts immediately once the power plug is connected.

1 Like

If the power strip or transformer is turned on, QC will start when you connect the adapter.
I use a transformer to connect multiple devices
QC / Audio interface / Analog outboard / Mixer
Connecting these
For example, suppose you turn on a transformer to use an audio interface and mixer.
Then QC will start.
To be honest, this is troublesome, even if you do not want to use it, it will start without permission
But personally I love QC except for this issue

I have no issue with this. Just pull the plug on the back of the unit before power up. I understand it may not be optimal for some. And I know that adds wear in the plug which could be an issue down the road. Since it is designed this way they have a reason. I am not sure what is involved in changing it. Definitely not against a change here, but for me it’s far down the list since I can just mount the walk wart and power strip and unplug from the back of the unit.


There is no power switch on the QC. When you plug it in, it is on. The “power button” in the upper left is just a soft button and you don’t even really need to use it to shut down the QC. Just unplug it.

If you don’t want your QC on, don’t plug it in. If you want it to come up noiseless, turn the volume all the way down until you are ready to go. Or make a mute patch.


You could use a power strip to turn it on or off, (this works ok in the studio) but the power button on the top left is MISLEADING at best if it doesn’t turn the unit on/off. Otherwise, the sound man needs to know to drop the faders before powering up when using live or you may get a POP.


Because there is an IO power switch mark

I think it’s a problem that you can’t turn it on and off from now on?

just plug the cortex in a powerbar… there goes the hard switch

1 Like

This is actually a useful feature in my opinion. If the soft power switch were to break, or it’s touch sensitivity to fail, you still have a way to power on the QC.

Apple does the same thing with their devices. If it’s off and you plug it in, it will turn on, even if the power buttons are broken. I can’t imagine why you would want to plug it in and not turn on…?


You don’t use it when the switch is out of order, right? You usually repair it, right?

It’s annoying to connect multiple analog devices to a transformer and unplug them

Please read the previous sentence as well.

I use a power strip to power on and off 8 different pedals and have been for years with no issues yet.


Just to add another use case for this - my QC was off (but not unplugged) - we had a scheduled power outage and when it came back on it powered up my QC. I know this because before I went to bed last night i saw the QC on. Approx 9 hours later. So it had been on for that long.

What is so difficult about taking the plug off when powering off? I’ve never had a guitar pedal or multi fx unit that I would leave plugged in when not using them.

If I am playing a gig and the power fails for a bit, I definitely want the QC to start the moment it’s getting power again. That’s how all my other pedals work too.

1 Like

What you say would be true, if it was just a normal pedal. But it isn’t. It’s a device that powers on for about 30 seconds and uses quite a bit of power. I for example use it as my main interface on my desk. So everytime I turn on my computer, it turns on. That’s just annoying. An option to start by default or not would be pretty nice. If you don’t want to you don’t need to. But I simply don’t see why a device with a power on/off button has to start everytime it receives power.

1 Like

I leave everything plugged in. I got an amp that stays plugged in so I can just turn it on at the amp power switch. I had a whole pedalboard that I used to leave plugged in so I could just turn on the 1 power switch. I had a Helix that I just left plugged in so I could turn it on at the Helix power switch. It’s like everything else in my house - kettle, toaster, tv…etc…etc…

You do it different than 95% of the rest of us, and that is ok!

Nothing. Except for wear n tear on the plug area. Not noticeable in 2 weeks, but two years down the road there may be. A quad power duplex with a switch is a lot cheaper to replace than the power input on the QC.

I installed an IEC socket and a lighted LED switch on my pedal board. A cheap surge protector will do the same thing though.

Nearly blew my monitors this way - full rig set up and ready to go, with power amps on. Plugged in the QC and it turned on I got 2kw of deafening hum n buzz.