After reading many threads on how to set up 3pro for volume and gain issues......I still am confused on manual's suggestions on settings! Ampeg says Master volume up and gain for volume with tube gain at 10.Many players here on TB say to do the opposite of that and crank input gain first till red light is on, then use master as volume. But Ampeg says nothing about cranking input gain at...wouldn't Ampeg's manual be correct by saying to NOT crank up input gain? And if Ampeg's manual is wrong, why do they only suggest one way of setting input gain and master on every type of style of music..Not one time at all do they go gain cranked..If they invented this red light wouldn't they talk about it?..They actually have amp set for cleanest sound on all examples (gain for overall volume/tube gain at 10, for LESS tube sound, it's more SS that way) Apparently, to get more tube sound you should have tube gain to 0 and crank gain till red light is on...Why would tube hybrid fail to mention other half of their settings? Not very good for marketing (half the people want to return this amp after they buy it)... They didn't show ANY tube sound settings.... Maybe cause we're all wrong and should set by manual's suggestion...hence all the volume concerns over this amp...When you crank master then gain for volume this amp is friggin loud.....Does any Ampeg expert know answer to this confusion of manual vs TB suggested settings?