Monitor noise in Cubase SX3

[Strings]

I have an M-Audio Fast Track Pro that is connected to my guitar amp using outputs 1 and 2 in seperate channels and I'm getting a constant low level noise using Cubase only. If I use actual monitors connected to the same outputs the problem goes away. I'd like to continue to use my amp because the playback sounds really good. Does anyone have any ideas?

Thanks

[Ruzz]

If I'm understanding this correctly....

You're taking the output of your mix (which I assume is at line level) and stuffing it into a HiZ guitar amp input (which is expecting a signal way, way below line level) and you're getting a hum/noise. Is that right?

Frankly, I'm surprised it isn't distorted beyond recognition. Maybe the impedance mismatching is "helping" - hard to say - but at what cost? The audio cannot be clean - what you think "sounds good" must be sonically... well, unreal. I'm surprised it's even remotely usable.

Advice: go back to your monitors. Even the worst pair of monitors is going to get closer to a realistic representation of your true sound than the guitar-amp-as-monitor setup.

Ruzz

[Strings]

Thanks for the input Ruzz,

I thought it might be an impedance problem. It's too bad because other then the slight whiney noise, it sounds great.