[quote name='mikhay77' timestamp='1272918549' post='826852']
I have used trace gear for years and unless I have missed something(its like and idiots guide for me) the red knob to the left is labeled input gain,I suppose its what I have been conditioned to look for.With a flashing light or a thumbs up to tell you when its about right,go above that and the output signal distorts no matter how low my volume control is or whatever speaker cab is connected so I would have thought it is gaining the input stage.Also playing through 4x10s they sound better when being pushed a bit,if really low volumes they are a little thinner,or is that just me? I do understand about sensitivity etc but played through some new neo cab and even though the output seemed higher at lower output settings they came to life more when pushed.Sort of fuller.Thats my ears telling me I know its not really science.
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Well put, this is an interesting thread but I think most Bass players don't fully understand the internal workings of an amplifier, but what they do understand is what a gain control and a master volume control does to the sound irrespective of the true technical function of the component.