This Is Spinal Tap My Friends!

Nigel Tufnel: The numbers all go to eleven. Look, right across the board, eleven, eleven, eleven and...
Marty DiBergi: Oh, I see. And most amps go up to ten?
Nigel Tufnel: Exactly.
Marty DiBergi: Does that mean it's louder? Is it any louder?
Nigel Tufnel: Well, it's one louder, isn't it? It's not ten. You see, most blokes, you know, will be playing at ten. You're on ten here, all the way up, all the way up, all the way up, you're on ten on your guitar. Where can you go from there? Where?
Marty DiBergi: I don't know.
Nigel Tufnel: Nowhere. Exactly. What we do is, if we need that extra push over the cliff, you know what we do?
Marty DiBergi: Put it up to eleven.
Nigel Tufnel: Eleven. Exactly. One louder.
Marty DiBergi: Why don't you just make ten louder and make ten be the top number and make that a little louder?
Nigel Tufnel: [pause] These go to eleven.
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[Nigel Tufnel is showing Marty DiBergi one of his favorite guitars]
Nigel Tufnel: The sustain, listen to it.
Marty DiBergi: I don't hear anything.
Nigel Tufnel: Well you would though, if it were playing.
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Ian Faith: Nigel gave me a drawing that said 18 inches. Now, whether or not he knows the difference between feet and inches is not my problem. I do what I'm told.
David St. Hubbins: But you're not as confused as him are you. I mean, it's not your job to be as confused as Nigel.