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Here you can download four MP3 files that help you to evaluate the low frequency reproduction in your audio system. These signals are equally suitable for full-bandwidth monitors and subwoofer systems.
The signal that contains only one frequency is called a tone. First of the test signals boink. Each of them is 10 cycles long. The frequencies in this signal are 16, 18, 20, 22, 26, 30, 35, 40, 45, 50, 60, 70, 80, 90, , and Hz. There is a little space between the tones to enable your audio system to build up its forces. As you play this signal pay attention to the purity of the tone.
The tone should be clean and all tones should have the same level. If you hear any distortion, noises or rattling check your sound system and your room.
Once you have chosen the correct Gain track for you gain setting please make sure you use the matching Sweep track to ensure correct KEY operation. IE -5db gain setting track needs to use -5db Key sweep tone. It matches the output of the source unit to the input level of the amplifier and features Gain Matching to prevent clipping the input.
Next, slowly turn clockwise the gain on the amplifier up until you see the Gain LED light up or hear audible distortion, then turn it down a little. In any audio system, the goal is to reach maximum input and output levels without distortion or clipping.
The engineers at KICKER have taken the guesswork, and hassle, out of matching the output voltage of your source unit to the amplifier with the Gain Matching feature. These test tones are sine waves meant to provide a consistent signal for the KX amplifier to reference.
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