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Summary of Contents for Speck SSM-24
- Page 1 MODEL SSM S y n t h a n d L i n e M i x e r Model SSM-24 Model SSMEX-16 Model SSMEX-32 Operation Manual...
- Page 2 Notice Speck Electronics makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Speck Electronics shall not be liable for errors contained herein or for incidental consequential damages in connection with the furnishing, performance, or use of this material.
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Page 3: Table Of Contents
Contents Contents Chapter 1 Introduction General ..................Operator Safety Summary ............Power Source ..............Grounding the product ............Use the proper power cord ..........Use the proper fuse ............. Panels and Covers ............... Ground Terminal..............General Description ..............Input section ................ Effects section .............. - Page 4 Contents Chapter 3 Installation General ..................Mechanical Installation ............. Physical Placement of Adjacent Equipment ......Power supply ................Mounting location ............... Configuring the AC ............. AC wiring chart ..............Fuse chart ................Connecting the Power Supply ........... Power Supply DC pin assignment ........Ground terminal ..............
- Page 5 Contents Rear Panel Controls ..............Input Channel Connections and Switches ......... Effects Send and Return Connections ........Master Input/Output Connections ..........Stereo Cue Return Section ............Mono Click Return Section ............Chapter 5 Wiring and Other General ..................Start simple ................. Audio Cable ................
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Page 6: General
We hope this manual is easy to understand. If you have any questions regarding the Model SSM or any Speck product, do not hesitate to contact Speck Electronics. Our phone number is (760) 723-4281. - Page 7 Chapter 1 Introduction Section Figure 1. Front Panel Layout...
- Page 8 Chapter 1 Introduction Section Figure 2. Rear Panel Layout...
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Page 9: Panels And Covers
Chapter 1 Introduction Section To avoid personal injury, do not remove the cover from the power Do not remove covers or panels supply, or the rear panel of the Model SSM or optional Expander. Never operate the external power supply without the covers and panels properly installed. -
Page 10: Effects Section
SSM to adapt to a wide range of professional situations. Features The SSM mixing system is available in three models: the SSM-24, 12 stereo input channels; the SSMEX-16 Expander, 16 mono channels; and the SSMEX-32 Expander, 16 stereo input channels. -
Page 11: Standard Accessories
Chapter 1 Introduction Section Standard Accessories The SSM is supplied with an external rack mount power supply that is Regulated power supply capable of powering the Model SSM main unit and one additional Model SSM 16 input channel expander. The SSM requires the Model PS3-1.5 regulated power supply. The power supply is supplied with a 6 foot, 3 conductor AC power cord and a 8 foot shielded DC cable. -
Page 12: Microphone Preamps
Chapter 1 Introduction Section This three rack space module incorporates 28 stereo or mono assign banks, 8 master outputs, 8 stereo effects returns, a complete monitoring section, and a stereo grand master feed. Any mono or stereo input channel from the Model SSM may be assigned to any of eight buss outputs. -
Page 13: Specifications
Chapter 1 Introduction Section Specifications Synthesizer Input Impedence 10k Ohms Patch Point Return Impedence 10k Ohms Effects Return Input Impedence 10k Ohms Cue Return Input Impedence (Unbalanced) 10k Ohms (Transformer Isolated) 600 Ohms Click Return Input Impedence (Unbalanced) 10k Ohms (Transformer Isolated) 600 Ohms Aux Return Input Impedence... - Page 14 Chapter 1 Introduction Section Specifications (Cont.) Residual Noise Measurement -82dBu (Synth In to Program Out) Test Conditions: -10dBu signal at synth input. Input slide fader set to #10 position. Pan pot centered. Adjust program master to indicate 0VU (+4dBm) at program feed jack-left. Input signal removed and terminated with 10k ohms.
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Page 15: Chapter 2 Initial Preparation
Chapter 2 Initial Preparation Initial Unpacking and The Model SSM is delivered in a special, protective container and was carefully inspected both mechanically and electrically before shipment. Inspection It should be physically free of mars and scratches and in perfect electrical order upon receipt. -
Page 16: Rack Grounding
Speck Dealer or Speck Electronics direct. Our phone number is (760) 723-4281. If the product is to be shipped to Speck Electronics for service or repair, attach a tag to the product, identifying the owner and indicating the service or repair to be accomplished. -
Page 17: Chapter 3 Installation
Chapter 3 Installation Section Installation The following information should give you the basics on how to install General the Model SSM Main Unit, optional SSM Expander, and Model PS3 Power Supply. The proper installation of the SSM as a part of a larger system requires a clear understanding of audio wiring, AC distribution, grounding, and shielding techniques. -
Page 18: Power Supply
Chapter 3 Installation Section Power Supply The Model SSM is supplied with the Model PS3-1.5 power supply that offers a variety of mounting options. The power supply may be placed on any flat surface, permanently affixed to a flat surface, or mounted on a single rack rail with the optional rack mount adapter. -
Page 19: Ac Wiring Chart
Chapter 3 Installation Section There are five terminals available on the power transformer of the power supply. The configuration of the five terminals determines the operating voltage of the power supply. It is only necessary to change the black (line) and white (neutral) AC wires. Do not attempt to remove or change the Green AC safety wire or the multicolored wires used at the DC terminals. -
Page 20: Connecting The Power Supply
Chapter 3 Installation Section Connecting the Before connecting the circular DC power supply connector to the SSM, make certain the power supply is not plugged in. Power Supply To connect the power supply to the main mixer, fit the circular connector from the DC power supply cable to the circular chassis mount receptacle mounted at the rear of the Model SSM. -
Page 21: Optional Slide/Tilt Rack Adapters
Rack Adapters available in many sizes and mounting configurations depending on the dimensions and style of your equipment rack. Please contact your dealer or Speck Electronics for specific details on the ordering and installation of the rack sliders. IMPORTANT! ONLY USE THE SHORT SCREWS THAT ARE SUPPLIED WITH THE MIXER. -
Page 22: Interfacing Expanders
Chapter 3 Installation Section Interfacing Expanders The Model SSM has been prewired with a multipin pin connector to accept any of the SSM series of Expanders. SSM Expanders are available in two versions: The SSMEX-32, 16 stereo channels; and the SSMEX-16, 16 mono channels. -
Page 23: Expander Pin Assignment
Chapter 3 Installation Section The following chart represents the audio and power connections vailable Expander pin assignment at the 38 pin interface connector at the rear of the SSM. PIN A COMMON PIN T EFFECT SEND 7 PIN B PLUS 16.25 VDC PIN U EFFECT SEND 8 PIN C... -
Page 24: Expression Pedal Enable Switch
Chapter 3 Installation Section Expression Pedal Enable Switch The Expression Pedal Enable Switch on the front panel of the main mixer must be depressed in order to operate the volume pedal. The following chart represents the audio connections available at the 6 Pedal Connector Pin pin DIN connector at the rear of the SSM main unit. -
Page 25: Chapter 4 Operation
It is assumed that you have a working knowledge of audio and signal flow. If this is your first mixer it is suggested that you purchase a book on the basic operation of audio mixers. Speck Electronics or your dealer will be happy to suggest some publications on this subject. - Page 26 Chapter 4 Operation Section Figure 3. Input Channel...
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Page 27: Equalizer Section
Chapter 4 Operation Section Refer to Figure 3 for location of items 1 thru 16. 1. Synth Trim Control The dual Synth Trim Control simultaneously adjusts the gain (level) of the left and right channel inputs. Its normal operating or starting position is when set fully counterclockwise. - Page 28 Chapter 4 Operation Section 5. Low and Mid Frequency The Low/Mid Frequency Sweep Control is used in conjunction with the Sweep Control Low/Mid - Boost/Cut Control and provides continuous adjustment from 50hz (fully counterclockwise) to 500hz (fully clockwise) when the Low/ Mid Band Select Switch (see below) is in the Low position.
- Page 29 Chapter 4 Operation Section A yellow LED to the right of this switch will illuminate indicating the Mono status of operation. When the Model SSM is configured with mono input channels, this Pre Fader Listen (PFL) Switch switch acts as a Pre Fader Listen (PFL) Switch. Depressing this button allows the selected channel's signal to be soloed (in mono) even if the slide fader is down or the channel is muted.
- Page 30 Chapter 4 Operation Section Unlike traditional pre-fader modes, here the sends are still post fader. So if, for example, you create a delicately balanced multi effects only patch, changing its overall level is simply a matter of adjusting the channel fader and not the individual effect sends. Layering one synths effects over another synths dry sound is one other way of creatively utilizing this function.
- Page 31 Chapter 4 Operation Section Figure 4. Effects Send and Return Channel...
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Page 32: Effects Send And Return Section
Chapter 4 Operation Section Refer to Figure 4 for location of items 17 thru 22. Effects Send and There are eight effect send and return sections incorporated into the Model SSM. Each section provides a master level control and solo for Return Section the effect sends. - Page 33 Chapter 4 Operation Section Figure 5. Master Section...
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Page 34: Master Section
Chapter 4 Operation Section Master Section Refer to Figure 5 for location of items 23 thru 43. 23. Effects Return Group This control acts as a master level adjustment for all eight stereo effects Master Control returns and is normally set to its fully clockwise position. In reality, there is no additional level available in the effects return signal path. - Page 35 Chapter 4 Operation Section 27. Solo Master Level Control This control adjusts the overall stereo in-place solo listening level to the monitor and/or headphone outputs (see the Solo to Monitor Switch, rear panel section). The adjustment of this control permits the volume of a soloed signal to match the level of the normal stereo mix.
- Page 36 Chapter 4 Operation Section The status of this VU meter is determined by the selection of the Solo/ Efx Meter Switch. When the Solo/Efx Meter Switch is in the normal position (up) the VU indicates the overall stereo mix of the Model SSM until any solo or PFL switch is depressed.
- Page 37 Chapter 4 Operation Section 37. Program Stereo/Mono Depressing this switch applies a monaural version of the program mix to Select Switch the left and right program outputs. This means it is possible to send the control room or house mix a mono feed while retaining stereo operation for a set of personal monitors or the headphone feed.
- Page 38 Chapter 4 Operation Section 42. Stereo Headphone This dual potentiometer controls the volume of the stereo headphone Level Control circuit. The Headphone Master Control operates the headphones that are plugged into the front and rear headphone jacks, as well as the transmitter feed jack.
- Page 39 Chapter 4 Operation Section Figure 6. Cue, Click, Aux Return Sections...
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Page 40: Stereo Cue Return Section
Chapter 4 Operation Section Refer to Figure 6 for location of items 44 thru 55. Stereo Cue This feature of the SSM allows an external stereo cue source (otherwise known as headphone or foldback) or any stereo line level signal to be Return Section integrated into the SSM's monitor and/or headphone feeds. -
Page 41: Stereo Aux Return Section
Chapter 4 Operation Section The Mono Click Return Section includes the return level control, the return pan control, the return mute switch, and the return in-place solo switch. The Click Return Level Control adjusts the level of an external Click 48. - Page 42 Chapter 4 Operation Section Figure 7. Input Channel Connectors and Switches...
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Page 43: Rear Panel Controls
Chapter 4 Operation Section REAR PANEL CONTROLS Input Channel Connections and Refer to Figure 7 for location of items 1 and 2. Switches 1. Input Channel Jacks Each input channel has four 1/4" jacks. The configuration of these four jacks depend on whether your Model SSM is configured with mono channels, stereo channels or a combination of both. - Page 44 Each patch In/Out provides a 1/4" T.R.S. (tip, ring, sleeve) jack. The ring of the jack is the "patch out" signal, the tip is the "patch in" signal, and the sleeve is the signal ground. Consult Speck Electronics or your dealer regarding this option.
- Page 45 Chapter 4 Operation Section Figure 8. Effects Send and Return Connectors...
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Page 46: Effects Send And Return Connections
Chapter 4 Operation Section Effects Send and Return Connections Refer to Figure 8 for location of items 3 and 4. 3. Effects Send Jack Each of the eight effect send channels has a separate unbalanced 1/4" T.S. jack to interface to the input of an effects device. It is completely acceptable, from an electronic standpoint, to adapt this connector to the input of any effects device, regardless of the type of input connector utilized on the effects unit (phone, RCA, XL, barrier... - Page 47 Chapter 4 Operation Section Figure 9. Master Input/Output Connectors...
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Page 48: Master Input/Output Connections
Chapter 4 Operation Section Master Input/Output Connections Refer to Figure 9 for location of items 5 thru 15. This pushbutton switch selects the sensitivity of the left and right 5. Left/Right Meter Sensitivity Select Switch Program VU meters; +4dbm operation in the normal (up) position, and - 18dbm operation when depressed. - Page 49 Chapter 4 Operation Section For SSM systems incorporating mono input channels, the Pre Fader 9. PFL Level Trim Control Listen (PFL) level may be adjusted with this recessed trim pot. Use care when inserting a screwdriver as other components could be damaged. These unbalanced 1/4"...
- Page 50 Chapter 4 Operation Section 12. Program Ground Lift Switch When used, this switch disconnects the shields (pin 1) from the left and right balanced XL connectors thereby inducing any piece of gear interfaced at these points to search out a ground path external to the Model SSM.
- Page 51 Chapter 4 Operation Section Figure 10. Cue, Click, Aux Return Connectors and Switches...
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Page 52: Stereo Cue Return Section
Chapter 4 Operation Section Refer to Figure 10 for location of items 16 thru 26. Stereo Cue The Stereo Cue Return provides two means of connection. Two unbalanced 1/4" T.S. jacks and a XL transformer isolated input Return Section connector with phase reverse and ground lift switches. These standard unbalanced 1/4"... -
Page 53: Mono Click Return Section
Chapter 4 Operation Section Mono Click The Mono Click Return provides two means of connection; a standard 1/4" jack and a balanced transformer isolated XL input connector with Return Section phase reverse and ground lift switches. A standard unbalanced 1/4" T.S. jack is available for the connection of a 20. - Page 54 Chapter 4 Operation Section 24. Aux Return Input Jacks These standard unbalanced 1/4" T.S. jacks allow the interface of an external stereo signal, such as a DAT, CD player or the output of Specks "Assign 28" subgroup module. This recessed stereo trim pot controls the level of program signal (stereo 25.
- Page 55 Chapter 4 Operation Section Figure 11. Expander and Power Supply Connectors...
- Page 56 Chapter 4 Operation Section Refer to Figure 11 for location of items 27 and 29. This multipin connector will accommodate any of the Model SSM 27. Expander Connector Expanders for a potential of 56 inputs (28 stereo channels). For the proper pin out configuration and installation instructions, refer to the Interface Section of this manual.
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Page 57: Chapter 5 Wiring And Other
Chapter 5 Wiring and Other Wiring and Other It is assumed that in addition to the Model SSM, a considerable General investment has been made in electronic equipment such as synthesizers, samplers, effects, and computers. We believe that the overall performance of the SSM and your mixing system is dependent on the condition and quality of this equipment. -
Page 58: Connectors
100% shield for exposed conductors. Feel free to check with Speck Electronics or your dealer when selecting cable and connectors. Our phone number is (760) 723-4281. When you are evaluating voltage and current requirements for your... -
Page 59: Clock Noise And Ac
Chapter 5 Wiring and Other Clock noise is one of the greatest enemies of the audio racks AC system. Clock Noise and AC If a synth or any microprocessor based device emits or somehow couples its clock signal with the neutral or earth of its own power cable, it will contaminate your AC system and carry the clock noise into other equipment;... -
Page 60: Emi And Rfi
Chapter 5 Wiring and Other If a patchbay is utilized in your mixing system, the rules for shielding change. With a patchbay, normally all shields are connected at the patchbay jacks, and not connected at the mixer or external audio equipment. -
Page 61: Balanced To Unbalanced Connections
Chapter 5 Wiring and Other When connecting the 1/4" unbalanced (TS) inputs and outputs of the Balanced to Model SSM to balanced equipment, it will be necessary to configure Unbalanced your cables in order to unbalance the signal. Connections There are 2 types of balanced output circuits; transformer and transformerless (electronically balanced).
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