Nilfisk-ALTO S-8 user manual Mono MIC/LINE channels, Input Level setting, LOW-CUT Filter

4. CONTROL ELEMENTS

4.1 The mono MIC/LINE channels 1

These are Channel 1 through Channel 4. You can connect balanced, low im- pedance microphones to the XLR socket. On the 1/4" phone jack you can connect either a microphone or a line level instrument. You shall never connect an unbalanced microphone to the XLR socket if you do not want to damage both the Microphone and the Mixer.

48 Volt phantom power 4

It is available only to the XLR Mic sockets. Never plug in a microphone when phantom power is already on. Before turning phantom power on, make sure that all faders are all the way down. In this way you will protect your Stage Monitors and Main Loudspeakers.

4.2 INPUT LEVEL setting 2

This Control is provided with 2 different indication rings: One is for the Microphone and the other for the Line levels. When you use a microphone you shall read the OUTSIDE ring (0-60 dB), When you use a Line level instrument you shall read the INSIDE ring (+15~-45 dB). For optimum operation you shall set this control in a way that the peak LED will blink also occasionally in order to avoid distortion on the input channel.

MIC 1

21

3

BAL OR

UNBAL

LINE IN 1

TRIM

+15dB -45dB LINE

0dB 60dB MIC

LOW CUT

75Hz

18dB/Oct

1

2

3

POWER PHANTOM

ON

OFF

4.3 LOW-CUT FILTER 3

4

By pressing this button you will activate a 75 Hz low frequency filter with a slope of 18 dB per octave. You can use this function to reduce hum and stage rumble when using microphones.

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