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SPECTRA-C / SPECTRA-T
OWNERS MANUAL
APB-DynaSonics, Inc.
20 West End Road
Totowa, New Jersey, 07512, U.S.A.
Tel: 973-785-1101
Fax: 973-785-1105

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Summarization of Contents

Spectra-C / Spectra-T Console Introduction
Manual Scope and Resources
Clarifies the manual's purpose and suggests external resources for mixing techniques.
Mono Input Controls and Connections
Line Switch and Phantom Power
Selects line input source and provides +48V phantom power for microphones.
Pad, Polarity, and Gain Controls
Details pad for attenuation, polarity reverse, and input gain adjustment.
Direct Output and High-Pass Filter (HPF)
Explains direct output source selection and HPF operation for signal filtering.
Mono Input Equalization (Spectra-C)
High Frequency EQ Controls
Covers the Hi Freq 12kHz/8kHz selection and Hi Frequency Level controls.
Mid Frequency EQ Controls
Details the Hi-Mid and Lo-Mid variable frequency and level controls for EQ.
Low Frequency EQ Controls
Explains the Lo Freq Level control and the 120Hz/60Hz selection switch.
EQ On Switch and Aux Pre-Source Select
Describes the EQ activation switch and auxiliary pre-source selection options.
Mono Input EQ and Insert (Spectra-T)
Insert On Switch and High-Pass Filter
Explains the insert connector activation and HPF settings for Spectra-T mono inputs.
High and Mid Frequency EQ Controls
Covers Hi Freq, Hi-Mid Freq Select/Level, and Hi-Mid Bandwidth controls.
Low-Mid and Low Frequency EQ Controls
Details Lo-Mid Freq Select/Level, Lo-Mid Bandwidth, and Lo Freq Select/Bell controls.
EQ On Switch and Aux Pre-Source
Describes the EQ activation switch and auxiliary pre-source selection for Spectra-T.
Mono Input Auxiliary Send Section
Aux 1-4 Pre-Source and Post-Fader Switches
Selects signal source for Aux 1-4 between Pre-Fader/Pre-EQ and Post-Fader/Pre-Source.
Aux 5-6 Level Controls and Stereo Switch
Manages Aux 5-6 levels and reconfigures controls for stereo headphone or effect sends.
Aux 7-8 Level Controls and Stereo Switch
Manages Aux 7-8 levels and reconfigures controls for stereo headphone or effect sends.
Aux 9-10 Level Controls and Stereo Switch
Manages Aux 9-10 levels and reconfigures controls for stereo headphone or effect sends.
Mono Input Bus Assignment and Pan Control
L-R and Center Assignment Switches
Assigns post-fader signal to Left-Right mix buses and the Center mix bus.
Mono and LCR Assignment Switches
Assigns signal to Mono bus and enables LCR assignment for flexible routing.
Pan Control Operation (L-R and LCR)
Details the pan control for balancing signals between mix buses in L-R or LCR modes.
Mono Input Mute, VCA, Solo, and Level Control
Mute and VCA Status Indicators
Explains local/remote mute switches, mute LEDs, and VCA status indicators.
VCA Assignment and Level Controls
Covers VCA assignment switches, fader, and level meters for channel gain.
Solo Switch and Channel Metering
Details the solo switch functionality and the 6-segment channel level meters.
Mono Input Module Rear Panel Connectors
1/4" TRS Direct Output Connector
Provides a balanced line level output for the input channel signal.
1/4" TRS Insert Connector
Allows insertion of external processing or effects into the channel signal path.
1/4" TRS Line Input and XLR Input Connectors
Details the line input options via TRS and XLR connectors, including impedance.
Stereo Line Input Section
TRS/RCA Input Selection and Polarity
Selects stereo input source and reverses polarity for left and right signals.
Stereo Input Gain Controls
Adjusts input gain for left and right stereo line signals for optimal performance.
Stereo HPF, Split Track, and Aux Controls
Details stereo high-pass filter, split track mode, and auxiliary send controls.
Stereo Line Input Channel Features
Split Track Mode Operation
Converts stereo input to dual mono for independent L&R signal control.
Stereo EQ Controls
Details Left-Right HPF, EQ level controls, and EQ On switch for stereo inputs.
Stereo Line Inputs: Auxiliary Send Section
Channel Pre-Fader/Pre-EQ Switch
Selects the pre signal source for auxiliary sends between Pre-Fader or Pre-EQ.
Aux 1-4 Controls and Source Switches
Manages Aux 1-4 levels and selects signal source between Post-fader and Pre-Source.
Aux 5-6 Controls, Stereo Switch, and Source Switch
Manages Aux 5-6 levels, stereo conversion, and selects signal source.
Aux 7-8 and 9-10 Controls
Details auxiliary send controls for pairs 7-8 and 9-10, similar to Aux 5-6.
Stereo Line Input Bus Assignment and Balance
Balance (Pan) Control Operation
Details the pan control for positioning stereo signals within the L-R mix.
Sum Mono and Bus Assignment Switches
Covers summing stereo to mono and assigning signals to Mono, L-R, and Center buses.
Stereo Line Input Mute, VCA, Solo, and Level Control
Mute and VCA Status Indicators
Explains local/remote mute switches, mute LEDs, and VCA status indicators.
VCA Assignment and Level Controls
Covers VCA assignment switches, fader, and level meters for channel gain.
Solo Switch and Channel Metering
Details the solo switch functionality and the 3-segment stereo channel level meters.
Stereo Line Input Rear Panel Connectors
Left and Right RCA Input Connectors
Provides unbalanced line level inputs for stereo channels.
1/4" TRS Left and Right Balanced Input Connectors
Provides balanced line level inputs for stereo channels, with mono signal handling.
Master Section: VCA Control
VCA Mute Group Switches
Explains how VCA mute group switches create additional mute groups.
VCA Master Group Fader and Indicators
Covers the 100mm VCA master fader, unity LED, and VCA group solo switch.
Aux Master Output Controls
Aux Output Mute and Level Control
Explains the mute switch and level control for auxiliary master outputs.
Bus Level Monitor and Talk Assignment
Covers bus level monitoring LEDs and talkback assignment to auxiliary buses.
Assignment Switches and Polarity
Details assignment switches for mix buses and the polarity reverse switch.
Aux Output Solo and Stereo Operation
Describes soloing auxiliary outputs and stereo system operation.
Auxiliary Output Rear Panel Connectors
TRS 1/4" Insert Points
Details insert points for external signal processing in the auxiliary path.
XLR Balanced Output and Headphone Connectors
Covers XLR outputs and headphone connectors on the rear panel.
Matrix Output Section
Matrix Output Metering and Aux to Matrix Levels
Explains matrix output metering and controls for feeding Aux signals to matrices.
Left, Right, Center, Mono Levels and External Input
Covers level controls for L/R/C/M signals and external input level for matrices.
Matrix Mute, Solo, and Output Level Controls
Details matrix mute switch, solo switch, and output level control.
Matrix Output Rear Panel Connectors
1/4" Balanced TRS External Input
Provides a balanced line input for external signals to matrix output sections.
1/4" TRS Matrix Insert and XLR Balanced Output
Covers TRS insert points and XLR balanced outputs for matrix sections.
Master Output Section
VCA Remote On Switch and Peak/Signal LEDs
Explains remote control option and peak/signal presence indicators for outputs.
House Master Fader and Input Priority
Covers the House Master fader and the input priority switch for soloing.
Solo AFL Mode and PFL/AFL Mode Switches
Details solo AFL mode center selection and PFL/AFL mode selection switches.
Solo Active Indicator and Mute Scene Switches
Explains solo active indicator and group mute scene activation switches.
Master Output Rear Panel Connectors
1/4" TRS Main Inserts
Details insert points for external processing in the main output signal path.
XLR Balanced Main Outputs
Provides balanced line level outputs for the console's primary outputs.
Alternate Output Sections
Mono Alternate Outputs Controls
Covers pre-fader source selection and level controls for mono alternate outputs.
Stereo Record Output Controls
Details source selection, mute, and level controls for the stereo record output.
Monitor and Headphone Control
Monitor Speaker Selection and Solo Trim
Covers 2/3 speaker monitoring selection and solo trim control.
Headphone Source Selection and Level
Details headphone source selection switches and the master headphone level control.
Solo Off to Headphones Switch
Explains the switch to prevent solo signals from overriding default headphone sources.
Monitor and Headphone Control Details
Monitor Source Selection and Pre-Fader Switch
Details monitor source selection and the pre-fader switch for various signals.
Solo Off to Monitors Switch
Explains the switch to prevent solo signals from overriding default monitor sources.
Talkback System Operation
Talkback Level and Source Selection
Covers talkback level adjustment and selection of mic or oscillator source.
Talkback Microphone and Routing Options
Details internal/external mic selection, master talkback switch, and routing presets.
System Metering
Aux Metering
Details the multi-segmented LED meters for the 10 auxiliary outputs.
Matrix and Solo Metering
Explains metering for the 4 matrix outputs and solo signal monitoring.
Main Output Metering (L-R-C-M)
Details the metering for the Left, Right, Center, and Mono main outputs.
Console Dimensions and Weights
Console Dimension Diagrams
Illustrates the front and side views of the console with key measurements.
Console Dimensions and Weight Table
Presents a table with chassis length, side cheeks length, and weight for different models.
Technical Specifications
Frequency Response and Noise Specifications
Details frequency response, THD+Noise, and noise levels for various inputs/outputs.
Crosstalk and Impedance Specifications
Covers crosstalk measurements and input/output impedance values.
Input/Output Level Specifications
Lists the input and output signal levels, including insert and balanced output levels.

Table of Contents