Okay, the safe way to use a gain knob, is to turn the gain to optimum setting on the amp, and then use the remote knob to control that range, thus having the ability to have the remote cranked for optimum performance, but being able to turn it down. You don't have to have your remote plugged in to do this, just set your amps gain and then plug in the remote, same difference.
The way horsemanwill said to do it, is NOT wrong, it's just another way. For the beginning user, it may not be as "safe" so you better know your system before doing that. But it is a completely functional way of doing it.
And before you make a blanket statement about the President of a company, and a amp that HE DID help design, you need to be sure you are right. In this case, you are completely wrong. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif