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BSS Audio FCS 966 - User Manual

BSS Audio FCS 966
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FCS 966
User Manual
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Summary

Important Safety Information

Safety Standards Compliance

Details compliance with European and international standards for EMC and electrical safety.

General Usage Precautions

Provides essential guidelines for safe operation, including cleaning and ventilation.

Electrical Safety Warnings

Highlights critical warnings regarding grounding, rain, moisture, and internal access.

Ground Loops and EMC

Explains cable wiring for EMC compliance and preventing ground loops.

Mains Supply Disconnect

Specifies that the mains plug or connector must remain accessible.

1.0 Mechanical Installation

2.0 Unpacking

Instructions for unpacking the unit and checking for damage.

3.0 Mains Power Connection

Details on connecting the unit to the mains power supply.

4.0 Introduction

An overview of the FCS 966 graphic equalizer.

5.0 Audio Connections

5.1 XLR Inputs

Explanation of balanced XLR input connections.

5.2 XLR Outputs

Explanation of balanced XLR output connections.

5.3 Jack Inputs

Explanation of jack input connections.

5.4 Jack Outputs

Explanation of jack output connections.

5.5 Combi-Con Connectors

Details on the six-way pluggable terminal block connectors.

6.0 Control Operations

6.1 Eq In

Description of the EQ bypass switch functionality.

6.2 Gain

Explanation of the gain control for level adjustment.

6.3 HP Filter

Details on the High Pass Filter control.

6.4 LF Contour

Explanation of the Low Frequency contour control.

6.5 HF Contour

Explanation of the High Frequency contour control.

6.6 Output Meter

Description of the peak reading RMS calibrated output meter.

6.7 Clip Indicators

Explanation of the overload indicators.

6.8 Frequency Band Sliders

Details on the main graphic equalizer sliders.

7.0 General Guide to Equalizers

7.1 What is a Graphic?

Defines a graphic equalizer and its operation.

7.2 How Do I Use It?

Guidance on using graphic equalizers for tonal adjustment.

7.3 What Does Constant Q Mean?

Explains the concept of Constant Q in equalizers.

8.0 Application Examples

8.1 General Equalisation - Problem Solving

Guidance on using EQ to correct sound problems.

8.2 Feedback Reduction

Methods for using the equalizer to reduce feedback.

8.3 Room Equalisation

Procedure for equalizing a room using pink noise and an RTA.

8.4 Uses for the HP Filter

Applications for the High Pass Filter.

8.5 Uses for the LF Contour

Applications for the Low Frequency contour control.

8.6 Use for the HF Contour

Applications for the High Frequency contour control.

9.0 Warranty Information

Warranty Terms and Conditions

Details the product warranty period and coverage limitations.

Fault Reporting and Returns Procedure

Instructions on how to report faults and return the unit for repair.

Purchase Information Record

A section to record dealer and purchase details for reference.

Manufacturer Contact Details

Contact information for BSS Audio / Harman Music Group.

10.0 Specifications

General Specifications

Technical specifications including impedance, headroom, frequency response, and noise.

Control Specifications

Specifications for gain, filters, contours, and frequency bands.

Index

User Notes

Spare Parts Information

Pots and Knobs

List of potentiometers and knobs used in the FCS 966.

Switches and Sockets

List of switches and input/output sockets.

Metalwork, Fuses, and Screws

List of metal parts, fuses, and screws.

Other Parts

Includes User Manual and Mains Lead.

1.0 Mechanical Installation Details

Unit and Rack Dimensions

Diagrams showing the unit's physical dimensions and rack mounting size.

Mounting Considerations

Advice on rack mounting, vibration, heat, and magnetic radiation.

2.0 Unpacking and 3.0 Power Connection

2.0 Unpacking Procedure

Instructions for unpacking and checking the unit's condition.

3.1 Mains Power Connection

Detailed instructions for connecting the unit to AC power.

Wire Colour Coding

Explanation of the colour coding for the mains power lead wires.

Voltage Selection and Fuse Rating

Guidance on selecting the correct voltage and fuse for the unit.

4.0 Introduction to FCS 966

Product Overview and Functionality

Overview of the FCS 966 as a two-channel graphic equalizer with key features.

Bypass Mode and Protection Features

Explanation of the bypass function and power on/off protection.

Connectivity Options

Description of available input and output connectors (XLR, Jack, Combi-Con).

Panel Layouts

Fig 4.1 Front Panel Layout

Diagram illustrating the front panel controls and indicators.

Fig 4.2 Rear Panel Layout

Diagram illustrating the rear panel connections and features.

Control Operations - Front Panel Details

Control Section Number References

Explanation of bubble numbers referring to section numbers.

Front Panel Control Groupings

Overview of controls like EQ In, Gain, Filters, and Contours.

Connection Reference Points

Highlights key input and output connection references.

5.0 Audio Connections - XLR

5.1 XLR Inputs Explained

Details on electronically balanced XLR inputs.

XLR Input Connection Types

Explains balanced and unbalanced connection methods for XLR inputs.

5.2 XLR Outputs Explained

Details on electronically balanced and floating XLR outputs.

XLR Output Wiring Diagram

Illustrates the wiring for XLR output connections.

5.3 Jack Inputs Explained

Jack Input Wiring Diagrams

Illustrates wiring for balanced and unbalanced jack inputs.

Unbalanced Jack Input Diagram

Specific diagram for connecting unbalanced sources via jack.

5.4 Jack Outputs and 5.5 Combi-Con Connectors

5.4 Jack Outputs Explained

Details on jack output connections.

Jack Output Wiring Diagrams

Illustrates wiring for balanced and unbalanced jack outputs.

Unbalanced Jack Output Diagram

Specific diagram for connecting to unbalanced outputs via jack.

5.5 Combi-Con Connectors Explained

Details on the six-way pluggable terminal block connectors.

Combi-Con Wiring Diagrams

Illustrates wiring for Combi-Con input and output connections.

Combi-Con Connection Examples

Feeding FCS 966 from Unbalanced Sources

Wiring example for connecting unbalanced output to FCS 966 input.

Feeding FCS 966 to Unbalanced Sources

Wiring example for connecting FCS 966 output to unbalanced input.

6.0 Control Operations - EQ In and Gain

6.1 Eq In Switch Functionality

Explains the function of the EQ bypass switch.

Bypass Mode and Metering Behavior

Describes output meter behavior when the unit is bypassed.

6.2 Gain Control Functionality

Details the gain control's range and purpose.

Gain Control Applications

Discusses uses for gain control in level matching and muting.

6.3 HP Filter and 6.4 LF Contour

6.3 HP Filter Functionality and Uses

Explains the High Pass Filter's function and applications.

6.4 LF Contour Functionality and Uses

Details the Low Frequency contour control and its uses.

6.5 HF Contour and 6.6 Output Meter

6.5 HF Contour Functionality and Uses

Explains the High Frequency contour control and its applications.

6.6 Output Meter Explanation

Describes the peak reading RMS output meter.

6.7 Clip Indicators and 6.8 Frequency Band Sliders

6.7 Clip Indicators Explanation

Details the function of the clip indicator lights.

6.8 Frequency Band Sliders Functionality

Explains the operation of the thirty frequency band sliders.

7.0 General Guide to Equalizers

7.1 What is a Graphic Equalizer?

Defines a graphic equalizer and its role in signal processing.

Graphic Equalizer Operation Principles

Explains how graphic equalizers split the audio spectrum into bands.

7.2 How to Use an Equalizer

Guidance on altering tonal quality and balance using EQ sliders.

Slider Effects on Instruments Diagram

Illustrates the approximate effect of sliders on different instruments.

7.3 Constant Q Theory

What Does Constant Q Mean?

Explains the technical term 'Q' and its implication for filter width.

Constant vs. Non-Constant Q Diagrams

Compares the filter response shapes of Constant Q and other equalizers.

Implications of Non-Constant Q Operation

Discusses the unpredictability of non-Constant Q equalizers.

Equalizer Topology Comparison

Gyrator Type Response Diagram

Illustrates the response curve of a gyrator-type equalizer.

Constant Q Response Diagram

Illustrates the response curve of the FCS 966's Constant Q topology.

Advantages of BSS Constant Q Topology

Explains why BSS chose the Constant Q topology for the FCS 966.

8.0 Application Examples - General EQ

8.1 General Equalisation - Problem Solving

Step-by-step guide to using the equalizer for problem-solving.

EQ Principles: Cutting vs. Boosting

Discusses the benefits of cutting frequencies versus boosting them.

8.2 Feedback Reduction and 8.3 Room Equalisation

8.2 Feedback Reduction Techniques

Detailed method for reducing feedback using the equalizer.

Feedback Reduction Diagram

Illustrates slider positions for feedback reduction.

8.3 Room Equalisation Procedure

Steps for equalizing room acoustics using an RTA.

Room EQ Equipment Requirements

Lists necessary equipment for room equalization (pink noise, RTA).

8.4 Uses for the HP Filter

Room Equalisation Diagram with RTA

Diagram showing RTA response during room equalization.

HP Filter for Low Frequency Energy Control

Explains using the HP filter to manage low-frequency energy.

8.5 Uses for the LF Contour and 8.6 Use for the HF Contour

8.5 Uses for the LF Contour

Discusses applications for the LF contour control.

8.6 Use for the HF Contour

Discusses applications for the HF contour control.

9.0 Warranty Information

Warranty Terms and Conditions

Details the product warranty period and coverage limitations.

Fault Reporting and Returns Procedure

Instructions on how to report faults and return the unit for repair.

Purchase Information Record

A section to record dealer and purchase details for reference.

Manufacturer Contact Details

Contact information for BSS Audio / Harman Music Group.

10.0 Specifications

General Specifications

Technical specifications including impedance, headroom, frequency response, and noise.

Control Specifications

Specifications for gain, filters, contours, and frequency bands.

FCS 966 Spare Parts List

Pots and Knobs

List of potentiometers and knobs used in the FCS 966.

Switches and Sockets

List of switches and input/output sockets.

Metalwork, Fuses, and Screws

List of metal parts, fuses, and screws.

Other Parts

Includes User Manual and Mains Lead.

BSS Audio FCS 966 Specifications

General IconGeneral
Frequency Range20 Hz - 20 kHz
Power Supply100-240V AC, 50/60 Hz
Channel Separation>80 dB
Maximum Input Level+22dBu
Maximum Output Level+22dBu
TypeStereo Graphic Equalizer
Frequency Bands30 per channel
Control Range±12dB
Input Impedance10kΩ
Frequency Response±0.5 dB
THD+N<0.01%
Signal to Noise Ratio>100dB
EQ Range±12dB
Subsonic Filter18Hz, 12dB/octave
Input ConnectorsXLR, TRS
Output ConnectorsXLR, TRS
Noise<-90dBu 20Hz-20kHz
THD<0.01%
Dimensions483 x 44 x 200mm

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