Samson S-Curve 131 Скачать руководство пользователя страница 6

4

1

Equalizer level sliders 

-  Independent Equalizer sliders are provided for each frequency area (The S

curve 131  provides 31 frequency areas).Calibration markings on either side of each Equalizer slider
allow you to cut or boost each  frequency area.  As described below, the exact action of the Equalizer
sliders depends upon the  setting of the Range switch as well as the setting of the Cut Only switch (see
#3 and #5.

When the Cut Only switch is not pressed in

:

When an equalizer slider is at its center detented “0” position,

the frequency area is unaffected (that is, there is no boost or cut).  When moved all the way up (to the
“+12 dB”) position, the frequency area is boosted by 12 dB (if the corresponding Range switch is not-
pressed in) or 6 dB (if the corresponding Range switch is pressed in).  When moved all the way down
(to the “-12 dB” position), the frequency area is attenuated by 12 dB (if the corresponding Range switch
is not pressed in) or 6 dB (if the corresponding Range switch is pressed in).

When the Cut Only switch is pressed in

:

When an equalizer slider is at its top-most position, the frequency

area is unaffected (that is, there is no boost or cut), as indicated by the blue “0 dB” label.  As the
Equalizer slider is moved down, the frequency area is attenuated.  As indicated by the “-6 dB” label,
when the Equalizer slider is at its center detented position, the frequency area is attenuated by 6 dB (if
the corresponding Range switch is pressed in) or 12 dB (if the corresponding Range switch is not
pressed in).  When moved all the way down (as indicated by the blue “-24 dB” label), the frequency area
is attenuated by 12 dB (if the corresponding Range switch is pressed in) or 24 dB (if the corresponding
Range switch is not pressed in).

Main Output level slider 

- Use this to adjust the output level of signal leaving the S curve 131 via its

rear-panel output connectors (see C and D on page 5 for more information).  When the main slider is at
its center detented “0” position, the corresponding output signal is at unity gain (that is, there is no level
cut or boost). When the main slider is moved all the way up (to the  “+6 dB”) position, the output signal
is boosted by 6 dB. When a Level slider is moved all the way down (to the “

” position), the output sig-

nal is infinitely attenuated (that is, there is no signal).  Note that the Main level slider is deactivated
when the S curve 131 is in Bypass mode (see #7).

3

CUT ONLY switch

- When pressed in, the LED switch lights and all the Equalizer sliders serve to attenu-

ate their frequency areas only (there is no boost) by up to 6 or 12 dB, depending upon the setting of the
RANGE switch (see #5 below).  The Cut Only switch should be used when you need to notch out cer-
tain frequencies in order to reduce feedback or “ring out” a room.  See the “Using the S curve 131 to
remove feedback” section in this manual (page 14) for more information. 

4

LEVEL METER

- This eight segment LED bar VU meter displays the Input Level from –30dB to +18dB.

Controls and Functions

FRONT PANEL LAYOUT

Содержание S-Curve 131

Страница 1: ...S C l a s s S i g n a l P r o c e s s o r s 31 BAND EQUALIZER...

Страница 2: ...venience receptacles and at the point at which they exit from the unit 11 Unplug this unit during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified personnel...

Страница 3: ...hniques 12 Using a Patchbay 12 Using the S curve 131 with an RTA 13 Using the S curve 131 to Remove Feedback 14 S curve 131 Wiring Guide 15 Specifications 16 Pass Band Graphs 16 Block Diagram 17 Copyr...

Страница 4: ...atures of the S curve 131 as well as a guided tour through the front and rear panels step by step instructions for using the unit suggested applications for use with a patch bay a Real Time Analyzer R...

Страница 5: ...ow noise circuity ensures superb audio fidelity Variable Low Cut Filter for removing rumble and floor noise can be adjusted from 80 to 400 Hz Electronically balanced XLR and TRS inputs and outputs Fro...

Страница 6: ...if the corresponding Range switch is pressed in or 12 dB if the corresponding Range switch is not pressed in When moved all the way down as indicated by the blue 24 dB label the frequency area is att...

Страница 7: ...switch When pressed in the LED in the switch lights yellow and the variable highpass filter is applied to the signal Using the Low Cut can be highly effective in removing rumble and other low fre que...

Страница 8: ...onjunction with mixer insert points or in an effects send return loop The illustrations on pages 8 10 show each of these typical configurations Choose the configuration that is best for your applicati...

Страница 9: ...ment by moving each of the Equalizer sliders up and down carefully listening to the audible result on the audio signal Bear in mind that the very lowest and highest frequency areas may have lit tle or...

Страница 10: ...onnected to the first using the first loudspeaker s extension output Using the S curve 131 with Passive Speakers In this example the mixer s mono output is connected to the S curve 131 s input Then th...

Страница 11: ...both the main PA speakers running a mono mix and for the monitor mix also in mono For the main PA the mixer s MONO output is connected to the S curve 131 s input Then the S curve 131 s output is conne...

Страница 12: ...f S curve 131 s inputs for the main PA speakers Then the outputs are connected to the inputs of the active self powered loudspeakers For the monitor mix the mixer s AUX1 output is connected to the thi...

Страница 13: ...ds in one frequency range obscure softer sounds in the same range by cutting EQ notches in a loud signal you can actually make room for a softer one to shine through And try not to think of EQ as a mi...

Страница 14: ...ence by planning your audio electrical and computer cable runs so that they are as far apart from one another as possible and so they don t run parallel to one another If they have to cross try to ens...

Страница 15: ...this will rarely if ever be the case While watching the RTA use the front panel Equalizer sliders to make corrections to the signal boosting any dips in the measured frequency response and attenuating...

Страница 16: ...ts set the Range switch so it is off in the 12 position Then raise all front panel Equalizer sliders to their upper most position because the Cut Only switch is on this represents flat response no cut...

Страница 17: ...XLR to RCA Cable S curve 131 Wiring Guide There are several ways to interface the S curve 131 depending on your exact monitoring set up Follow the cable diagrams below for connecting your monitor syst...

Страница 18: ...Frequency response unity 10 Hz to 90 kHz 3 dB 4 THD N unity gain Less than 0 01 20Hz to 20kHz 5 Main level Max gain 6 dB 6 Low cut filter variable 15 to 200 Hz 7 Noise with 22 kHz LPF all faders flat...

Страница 19: ...17 S curve 131 Block Diagram...

Страница 20: ...Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www samsontech com...

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