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Samson S-curve 215 Owner's Manual

Dual 15 band equalizer
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25
40
63
100
160
250
400
630
12
6
0
DUAL 15 BAND
EQUALIZER
6
12
25
40
63
100
160
250
400
630
DUAL 15 BAND EQUALIZER
1K
1.6K
2.5K
4K
6.3K
10K
16K
CH 1
-30 -18
-6
0
+6
+18
12
6
LOW CUT
6
3
0
0
BYPASS
6
-20
12
OFF
1K
1.6K
2.5K
4K
6.3K
10K
16K
CH 1
25
40
63
100
160
250
400
630
1K
1.6K
2.5K
12
6
0
6
12
25
40
63
100
160
250
400
630
1K
1.6K
2.5K
4K
6.3K
10K
16K
CH 2
-30 -18
-6
0
+6
+18
POWER
12
6
LOW CUT
6
3
0
0
BYPASS
6
-20
12
OFF
4K
6.3K
10K
16K
CH 2

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Summary of Contents for Samson S-curve 215

  • Page 1 1.6K 2.5K 6.3K DUAL 15 BAND EQUALIZER 1.6K 2.5K 6.3K DUAL 15 BAND EQUALIZER CH 1 -30 -18 LOW CUT BYPASS CH 1 1.6K 2.5K 6.3K CH 2 -30 -18 POWER LOW CUT BYPASS 1.6K 2.5K 6.3K CH 2...

  • Page 2: Safety Instructions

    Caution: To reduce the hazard of electrical shock, do not remove cover or back. No user serviceable parts inside. Please refer all servic- ing to qualified personnel. WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage"...

  • Page 3: Table Of Contents

    System Configurations About Equalization Grounding Techniques Using a Patchbay Using the S curve 215 with an RTA Using the S curve 215 to “Ring Out” a Monitor System S curve 215 Wiring Guide Specifications Pass-Band Graphs Block Diagram Copyright 2003, Samson Technologies Corp.

  • Page 4: Introduction

    In this manual, you’ll find a more detailed description of the features of the S curve 215, 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 (RTA) or for ringing out monitor systems, reference appendices, and full specifications.

  • Page 5: System Features

    As a result, phase shifting and inter- modulation distortion is greatly reduced, making for pristine sound. • The S curve 215 has 12 dB of gain and attenuation for each of the frequency bands. • Ultra-low noise circuity ensures superb audio fidelity.

  • Page 6: Controls And Functions

    Equalizer sliders are provided for each of the two channels (Channel A and Channel B). Output level sliders - Use these to adjust the output level of signal leaving the S curve 215 via its rear-panel output connectors (see C and E on page 5 for more information). When a Level slider is at its center detented “0”...

  • Page 7: Rear Panel

    REAR PANEL LAYOUT AC input - Connect the supplied heavy gauge 3-pin “IEC” power cable here. Balanced XLR jack input - Electronically balanced XLR jack input. Wiring is as follows: pin 2 hot, pin 3 cold, and pin 1 ground. Balanced XLR jack output - Electronically balanced XLR jack output.

  • Page 8: Setting Up And Using The S Curve 215

    1.6K 2.5K 4. The S curve 215 can be used either as an “in-line” device, as an insert device (in conjunction 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 application and then begin by making the S curve 215 input connections, using either the XLR or 1/4"...
  • Page 9 (at which time you’ll hear a click and the audio signal will be unmuted). 8. Apply an input signal to the S curve 215 (if sending signal from a mixer output bus, drive the mixer’s output meters at approximately 0 VU). While the input signal is present, slowly raise the front panel Level slider(s) to their center detented “0”...

  • Page 10: System Configurations

    Using the S curve 215 with Active Speakers In this example the mixer’s left and right outputs are connected to the S curve 215’s Channel 1 and Channel 2 inputs. Then, the S curve 215’s Channel 1 and Channel 2 outputs are connected to the inputs of the active (self-powered) loudspeakers.
  • Page 11 Using the S curve 215 for Mains and Monitors In this example, the S curve 215 is used for 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 215’s Channel 1 INPUT. Then, the S curve 215’s Channel 1 OUTPUT is connect- ed to the input of the right main PA active (self-powered) loudspeaker.
  • Page 12 S curve 215 System Configurations Using Two S curve 215’s for Mains and Monitors...

  • Page 13: About Equalization

    If you are using your S curve 215 to equalize a complex mono or stereo signal (for example, the master mix output of a mixing console), a more natural sound can be obtained by setting up gentle “smile”...

  • Page 14: Grounding Techniques

    Using the S curve 215 with a Patchbay If you are using the S curve 215 with an audio patchbay (such as S patch or S patch plus), you may find it advan- tageous to connect its inputs and outputs directly to a pair of patch points. This way, you can opt to route signal to the equalizer from any source.

  • Page 15: Using The S Curve 215 With An Rta

    “tuning” a room). To use this kind of system, connect the S curve 215 to your mixer’s main outputs or across main mix output inserts (see pages 8 - 9 in this manual for typical configuration diagrams). Set the S curve 215 Level slider(s) to the center detented “0 dB”...

  • Page 16: Using The S Curve 215 To "Ring Out" A Monitor System

    Using the S curve 215 to Remove Feedback One of the most important applications for the S curve 215 is removing feedback from an onstage monitor system. This procedure is sometimes called “ringing out,” since feedback usually begins with a slight ringing sound at the resonant frequencies where the loop between microphone and speaker is loudest.

  • Page 17: S Curve 215 Wiring Guide

    S curve 215 Wiring Guide There are several ways to interface the S curve 215, depending on your exact monitoring set-up. Follow the cable diagrams below for connecting your monitor system. 1/4” TRS Insert Cable Send Return Un-Balanced 1/4” to 1/4” Cable...

  • Page 18: Specifications

    Specifications Center frequencies (Hz) Variable range Frequency response (unity) THD+N, unity gain (20Hz to 20kHz) Max. Output Level gain High pass filter Noise (with 20 kHz LPF, all faders flat) Dimensions Weight Boost FREQUENCY (Hz) 25, 40, 63, 100, 160, 250, 400, 630, 1 k, 1.6 k, 2.5 k, 4 k, 6.3 k, 10 k, 16 k <10 Hz to 90 kHz ±3 dB Less than 0.01%...

  • Page 19: Block Diagram

    S curve 215 Block Diagram...
  • Page 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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