Well, last summer i bought my first rig. It was a Trace Elliot GP12x w/ two cabinets (300w ea), when i red the manual about this amp its marked as a pre-amp but it has also has a power-amp (i found out (not in the manual) that its rated at 400w). I'm getting bored playing through this rig now, and want to try out something new... something easier (easir to use) (The Trace has a 12band EQ - which i hate working with). Can i buy Pre-amp and plug it with my Trace? It has a input and output called "pre-amp link" and i don't know what that means.