You should also note that the amp models in GarageBand 10 provide a simulated preamp/power amp combo, meaning you'll have a gain knob on the amp and a master output (more on that later). There are a number of aspects of setting up and managing signal flow that need to be addressed, to get the best out of software amp sims, and these tips. This means you'll need to back off the signal you're sending into GarageBand from your electric guitar and/or pedalboard. If you're too loud in GarageBand, you'll see the red clipping indicator in the top right corner where the master volume is located. This is something I have to watch with my compressor and EQ pedals, since they both have the ability to boost my signal. This means that the pedalboard is in a kind of preamp role, with the potential to send enough gain into GarageBand to create unwanted noise or even distortion. With your pedalboard going directly into the USB interface, and ultimately GarageBand, you'll need to treat GarageBand as your final power amp.

Put a noise suppressor like the Boss NS-2 at the end of your pedal chain.

Use 9V batteries instead of a daisy chain (9V batteries in each pedal - though a pain - is a form of isolated power).Over 60 masterful simulations of the industry’s best guitar effects, amps, cabinets and mics are yours to create with when you plug in and play with Guitar Rack from TC Helicon. It’s packed with iconic effects, an easy recording interface, and endless combinations of your favorite sounds.

The less pedals you use, the less noise you'll have to deal with. If your amp has a hidden headphone jack that you didnt notice before, then great, you can close out of this article and start jamming. Guitar Rack for iOS is a virtual pedal board and amplifier for guitar. So, nothing new here - just common sense.

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