You will now be subjected 
To various frequencies and sounds
Here's 55 Hertz
That's a check for the bass
Let's move on to 110 Hertz
Let's speed it up: 220 Hertz
440 Hertz
880 Hertz
1760 motherfucking Hertz
Audiometric program, phase one
Welcome to the second phase of our audiometric program
Please stand in the centre of the room and face the DJ
First we go left...
To the right...
Low pass filter
High pass filter
The power button
We have come to phase three
We perform a proper speaker check
Using hardstyle music
Now we're getting somewhere
If you receive this message
Your speakers have endured the test