Samson S63, S83 manual Guided Tour - S83 Main Section, 1 2, 6 10 7

Guided Tour - S83 Main Section

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8 CHANNEL MIXER 300 WATT AMPLIFIER

-18

-12

-8 -5

-3

0

+2

PHANTOM

PROTECTION

POWER

30Hz

64Hz

125Hz

250Hz

500Hz

1K

2K

3K

5K

10K

+15dB

0dB

-15dB

30Hz	64Hz	125Hz	250Hz	500Hz	1K	2K	3K	5K	10K
	0			0		0
−∞	+10	−∞	+10		−∞	+10		0	10
MAIN LEVEL		RETURN 1-2			RETURN 3-4			HEADPHONES
						0
		0	10		−∞	+10
PHANTOM		REVERB			MONITOR

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1:Meter - This seven-segment bar meter shows the continuous output level of the S83. For optimum signal-to-noise ratio, try to adjust all levels (channel and main) so that program material is usually at or around 0 VU, with occasional but not steady excursions to the +2 segment. See the “Setting Up and Using the S83/S63” section in this manual for more information.

2:Meter LEDs - These show the status of various conditions within the S83. The leftmost LED (labeled “Phantom”) lights steadily when Phantom power is being supplied to all mic inputs (see #5 below). The center LED (labeled “Protection”) lights for approximately five seconds whenever the S83 is powered on and fades slowly when the unit is powered off. It indicates the activity of the built-in protection relay circuitry during which time 0 volts DC are provided to all connected speakers, thus preventing any “thump.” The rightmost LED (labeled “Power”) lights steadily whenever the S83 is powered on.

3:Ten-Band Graphic Master EQ - These sliders allow you to add ±15 db of boost or attenuation to ten different frequency areas, affecting the main output signal of the S83. When a slider is at its center detented (“0 db”) position, the selected frequency area is unaffected (it is said to be flat). When a slider is moved up (above the “0 db” position, towards the “+15 db” position), the selected frequency area is boosted, and when it is moved down (below the “0 db” posi- tion, towards the “-15 db” position), the selected frequency area is being attenu- ated. For more information, see the “Using Equalization” section in this manual.

4:Main Level (white) - This knob determines the final signal level sent to the speaker output jacks on the rear panel. At the fully counterclockwise (“∞ ”) posi- tion, the signal is infinitely attenuated— that is, there is no sound. At the “0” posi- tion, the mixer is at unity gain and is providing no attenuation or boost to the

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