For me, I've had both online and RL experience with my Master and as for just words alone. Well. Some phrases can take me to the level of 'His slut' in a matter of seconds such as 'Whose dirty little whore are you?' Sometimes he would greet me with that phrase when I first signed on IM and I was instantly in the perfect mindset for hours of play. On the flip side when he calls me a slave it stops me cold because, for me, that words is very 'cold' whether I'm reading it on his IM or hearing Him say it in his most seductive voice. It makes me feel absolutely unimportant and like nothing more then a mildly amusing toy. I'll admit it I enjoy feeling important to me Master.
But the tone, now that's a whole other story. When I'm in the right mindset, he can talk about the most ordinary things and my mind will pick out key words and translate them into intensely erotic meanings. Master sometime laughs at me for being able to think naughty about mundane things. I'm not sure if a stereo manual would do it though as long involved direction with bunches of technical words tend to make my eyes glaze over. lol.