Are you sure you made absolutely no changes to your pedalboard? You didn’t change the order of any pedals? Or whether or not they start switched on?

Supplying power to modern digital pedals is just a bit more tricky than just supplying the proper voltage and wattage. All analogue pedals have to sort of “warm up” before they work. That’s why most all analogue pedals engage the battery when you plug in rather than when you press the footswitch. If they “turned on” when you pressed the footswitch there could be an unacceptable delay, so instead they “turn on” but in bypass mode when you plug your guitar in.

Digital circuits have to do a bit more. They are essentially little computers that have to boot up. Just like your mobile device takes some time to boot up if it has been shut down completely, a digital effects pedal takes some time to boot up. The more complex the circuit, the more time it takes to boot.

Power supplies have something called a ramp up time. That is, how long does it take for the power to reach maximum when it’s turned on or when something puts a load on it. If the power supply doesn’t reach the required levels fast enough for the pedal to do its boot sequence, then the pedal can “hang” just like a ‘puter when one of the many interacting chips fails to initialize in time.

Now, imagine a daisy chained power supply with each of those pedals putting a similar but different load on the system with different timings. It all happens very quickly, but it’s not instantaneous. Initially, there’s a very spiky, dirty, distorted power signal that could be seen differently depending on where you are in the chain. That’s one reason that isolated power supplies are nice. The ultimate in isolation is each effect having its own specialized power supply.

My largish pedalboard is almost exclusively EHX pedals. I also use some daisy chained power supplies, and I also have a couple of pedals that just don’t play nicely with others. They seem to generate a lot of noise when sharing a power supply with some other pedals. Moving them around helps, but I’ve just settled on having them use their own supplied adapters. It’s simple. I start by adding a pedal to a daisy chain. If it works, great. If it does anything weird, it gets its own power supply. I’m sure I could solve the problem with a really expensive, professional, isolated power supply, but those have their own problems, like what do you do if you need a 24v positive tip? What do you do if you need a 9v AC power supply? And they don’t help you with vintage effects with plugs built into the box. So, you still end up having to run separate power supplies anyway, or spend even bigger bucks to get a power supply that supports that ONE effect you have that isn’t 9V DC Negative Tip Cylinder.

Same issue here.

9.02V and 300mA power supply. When I turn the knob to octave it does that weird thing.

I did and they replied that the canyon doesn’t like daisy chains. After a little research I found out that the problem is the power the pedal gets. My psu gives 9.2V while the ehx one supplies almost 9.8V. The specs in the leaflet say that’s the pedal needs 9V/150mA which I believe is wrong. Supplying the pedal with 9.5V-9.8V does the trick, but anything below that threshold causes the issue. Don’t get me wrong the pedal is amazing but it does *not* work on 9V. The specs are wrong. The difference is insignificant but I guess it’s the little extra juice the processor needs to run its script.

Hi and thanks for the reply. My psu is an ebs one. EBS is a respectable company that makes amazing bass amps and pedals. The 9.2V measurement has been taken while all my pedals were connected and turned on.

You basically bought a used pedal. We can not control what a sales person in a store will do.
It should work great with any 9 volt 200ma supply. It is center negative.
Less than 150ma and it will not work properly.
Most Boss adapters will work fine.
Daisy chaining power supplies can cause problems if hey do not have isolated outputs.
The cheaper ones do not.

Here is a full page of the correct supply:
https://www.google.com/search?q=ehx+supply+9.6+voly+200+ma&ie=utf-8&oe=utf-8&client=firefox-b-1

I think many of us have this problem with the Canyon. EHX They should accept their mistakes. In my case the Canyon crashes when I use my isolated vitoos dd8 sv2 power supply and select octave mode, it starts to make a popping sound and doesn’t work properly. It only works fine when I use it with its own 9.6v supply. It seems that with 9v it does not work well.