CAB M noise

[adambron1985]

Hey all, I am experiencing a lot of white noise from the xlr output of the CAB M. I've had a few complaints from soundmen live and from engineers whom I've sent guitar tracks.

After taking it home and trying it direct (guitar > cab m > PA) I am hearing a LOT of noise. In order to turn up the guitar to a playable volume i am hearing a constant hiss. The hiss goes up and down as i adjust the output volume.

I've tried it with the factory power supply AND with a gigrig supanova 12volt isolated 550ma power supply.

wtf? Anyone experience a similar issue?

 

[scottosan]

Hey all, I am experiencing a lot of white noise from the xlr output of the CAB M. I've had a few complaints from soundmen live and from engineers whom I've sent guitar tracks.

After taking it home and trying it direct (guitar > cab m > PA) I am hearing a LOT of noise. In order to turn up the guitar to a playable volume i am hearing a constant hiss. The hiss goes up and down as i adjust the output volume.

I've tried it with the factory power supply AND with a gigrig supanova 12volt isolated 550ma power supply.

wtf? Anyone experience a similar issue?

what amp between the guitar and cab M?

 

[adambron1985]

None! Usually I run a Kinsley Maiden preamp into it and then send a DI to front of house utilizing the power amp/speaker/mic sims. The setup right now though is guitar > cab M (I've bypassed all of the onboard simulation) > PA.

 

[scottosan]

None! Usually I run a Kinsley Maiden preamp into it and then send a DI to front of house utilizing the power amp/speaker/mic sims. The setup right now though is guitar > cab M (I've bypassed all of the onboard simulation) > PA.

The impednace from a guitar is much higher that the impedance of an amplifier. Have you tried different input levels on the switch?

 

[adambron1985]

Yes, there is considerable input gain if i use anything other than the -12db input.

I also have the Cabzeus by GFI and experience the same input clipping issue, but much less noise. I have to run the Cabzeus at -20 db input otherwise there is substantial clipping - especially if i am running the Maiden out front.

With either unit though, if i try to back my guitar volume off to around 7 or 8 I have to turn the signal up even more on the PA and the noise gets unbearable

 

[Kapo_Polenton]

Yes, mine has a bit of noise as well but i am guessing a lot of it is proximity to the amp, speaker etc... also, you need to play around with the output level and adding the power amp def. ups the noise for me as well. The more you crank your amp and have it running through the CAB M and then to speaker or load, the more the noise goes up. It is a good unit, probably best suited to a preamp and then using power amp modelling but you have to play with the input and output levels. Sort of an impulse buy for me as nowadays i run out of my amp through the CAB M and then into the Reload. I got tired of WOSIII crashing in my DAW so i got an external unit.

 

[Kapo_Polenton]

None! Usually I run a Kinsley Maiden preamp into it and then send a DI to front of house utilizing the power amp/speaker/mic sims. The setup right now though is guitar > cab M (I've bypassed all of the onboard simulation) > PA.

Maybe try playing with the input from your kinsley and adjust the output knob. Also, there are three DB levels on the side to bring the levels up or down. Mess with those as well (right side of pedal if you are looking down)

 

[blackba]

Can you press the ground lift switch on the cabM and see if the noise improves?

I am thinking of going to a Kingsley Constable into a CabM, so I am very curious how this works out.

 

[adambron1985]

Hey thanks for the responses! Unfortunately I've tried most of these fixes, to no avail.

The input db switch on the side is either -12db, 0 db or +12db, I get pretty bad input clipping unless I use anything but the -12db input gain. Yes the Kingsley Maiden can be loud, but I get that same clipping when I turn it off, or even during this isolated test where I ran guitar > cabM > PA I was getting clipping at anything but -12db

I thought it might be the power amp sim, so I turned it off. Then just to be safe I turned every sim off - basically running through the pedal with power amp, cab sim, mic sim, and room/reverb sim off. Still have the same white noise, still get the same input clipping above -12db

ground lift didn't effect the white noise

Two notes has since responded to my ticket but they just said I shouldn't run my guitar direct into the unit (
?) because the guitar is too quiet and doesn't carry a strong enough impedance load. I told them i run a pre amp in front and have tried it both on and off and experience the same issue. And that I experience input gain at anything about -12db

This is just one of my outputs to FOH - the rest of my signal usually runs stereo to two tube amps. If I have to drastically adjust my gain stages just to make this unit not sound like garbage, it will adversely effect the rest of my chain and is not worth the trouble.

Lastly, using this unit with a tube amp is even harder - the input level is so hot coming out of the speaker out that I have to turn my amp down just to avoid clipping! Doesn't that defeat the purpose of this kind of application??

 

[Kapo_Polenton]

Hey thanks for the responses! Unfortunately I've tried most of these fixes, to no avail.

The input db switch on the side is either -12db, 0 db or +12db, I get pretty bad input clipping unless I use anything but the -12db input gain. Yes the Kingsley Maiden can be loud, but I get that same clipping when I turn it off, or even during this isolated test where I ran guitar > cabM > PA I was getting clipping at anything but -12db

I thought it might be the power amp sim, so I turned it off. Then just to be safe I turned every sim off - basically running through the pedal with power amp, cab sim, mic sim, and room/reverb sim off. Still have the same white noise, still get the same input clipping above -12db

ground lift didn't effect the white noise

Two notes has since responded to my ticket but they just said I shouldn't run my guitar direct into the unit (
?) because the guitar is too quiet and doesn't carry a strong enough impedance load. I told them i run a pre amp in front and have tried it both on and off and experience the same issue. And that I experience input gain at anything about -12db

This is just one of my outputs to FOH - the rest of my signal usually runs stereo to two tube amps. If I have to drastically adjust my gain stages just to make this unit not sound like garbage, it will adversely effect the rest of my chain and is not worth the trouble.

Lastly, using this unit with a tube amp is even harder - the input level is so hot coming out of the speaker out that I have to turn my amp down just to avoid clipping! Doesn't that defeat the purpose of this kind of application??

In short yes, it does. That's the issue I have also when I run my amps like I want to. Pinned. I get squealing and crazy noise. I think quite honestly that although they "can" work this way, they probably don't work great this way. Like a lot of other things in our signal chains, it just might be that the kinsley stuff just doesn't work with the cab M. My CAB M worked reasonably well with a Myasnikov preamp I had and only becomes dodgy (noisy)when the power amp comes in. I think a lot of that has to do how close it was to the speaker, computer monitor etc etc.. I suppose yours could have a few noisy components but I think it might just be what you or I are running into them. Add to the fact that we also have dirty power a lot in our homes and dive bars where you might play and that certainly doesn't help things. In a perfect world, everything wound sound as good as Pete Thorn makes it sound but that is not the reality.

 

[blackba]

Hey thanks for the responses! Unfortunately I've tried most of these fixes, to no avail.

The input db switch on the side is either -12db, 0 db or +12db, I get pretty bad input clipping unless I use anything but the -12db input gain. Yes the Kingsley Maiden can be loud, but I get that same clipping when I turn it off, or even during this isolated test where I ran guitar > cabM > PA I was getting clipping at anything but -12db

I thought it might be the power amp sim, so I turned it off. Then just to be safe I turned every sim off - basically running through the pedal with power amp, cab sim, mic sim, and room/reverb sim off. Still have the same white noise, still get the same input clipping above -12db

ground lift didn't effect the white noise

Two notes has since responded to my ticket but they just said I shouldn't run my guitar direct into the unit (
?) because the guitar is too quiet and doesn't carry a strong enough impedance load. I told them i run a pre amp in front and have tried it both on and off and experience the same issue. And that I experience input gain at anything about -12db

This is just one of my outputs to FOH - the rest of my signal usually runs stereo to two tube amps. If I have to drastically adjust my gain stages just to make this unit not sound like garbage, it will adversely effect the rest of my chain and is not worth the trouble.

Lastly, using this unit with a tube amp is even harder - the input level is so hot coming out of the speaker out that I have to turn my amp down just to avoid clipping! Doesn't that defeat the purpose of this kind of application??

For your next step, I would try to isolate whether the issue is the pairing of the Kingsley and CabM or just one. If you have another preamp, small mixer or amp head with a loop, try taking that into the CabM and see if you get the noise.

You can also try running the Kingsley direct into an amp's effect return or a mixer and see what happens.

Hope you can get it sorted and Two Notes provides some help.

 

[mojo34]

I am using a Kingsley Maiden into a Cab M and usually have absolutely no noise. I did have noise once and the Ground Lift made it go away. I think you can use the -12 dB or 0 dB depending on what you are plugging into. I have adjusted settings so it works nicely at 0 dB, but at -12 dB you can make the Maiden work harder by turning it up. Don't know if this helps you any, other than to confirm that it *can* be noiseless.
P.S. I absolutely LOVE the sounds I'm getting with this set up.

 

[Orvillain]

Is there a software setting that you can change to switch the input between amp, line, and instrument levels?

 

[FrankX]

Hey all, I am experiencing a lot of white noise from the xlr output of the CAB M. I've had a few complaints from soundmen live and from engineers whom I've sent guitar tracks.

After taking it home and trying it direct (guitar > cab m > PA) I am hearing a LOT of noise. In order to turn up the guitar to a playable volume i am hearing a constant hiss. The hiss goes up and down as i adjust the output volume.

I've tried it with the factory power supply AND with a gigrig supanova 12volt isolated 550ma power supply.

wtf? Anyone experience a similar issue?

I know it's an old post but I was experiencing similar issues. Problem was too much gain on the pre amp.