BSS Audio FCS-960 - User Manual

1
Welcome to the FCS-930/960 Users Manual
Welcome
V2.2 8 December 1995
This Manual is the COPYRIGHT of BSS Audio. All reproduction and copying, other than for the legal
owner's personal use, or disclosure of part or whole to a third party, without prior written authorisa-
tion, is in violation of the European Copyright Convention. BSS Audio 1995
FCS-930 FCS-960
User's Manual
DUAL MODE GRAPHIC EQUALISER
DUAL MODE TWO CHANNEL GRAPHIC EQUALISER
The aim of this manual is to assist sound engineers, installers and
consultants to fully understand the FCS-930/960; and to benefit from its
maximum capability. As opposed to most manuals, the contents can be
read like a book.
At the same time, the information is structured under a series of broad
headings for easy access. So where possible within each section:
. The most immediate information appears at the head of each section
under the main title.
. As you read further into each subsequent section, more
detailed,specific information is given.
Should you have any comments or questions about applying the FCS-
930/960 series within your application, please write to us at the address
in the warranty section.
FCS-960
FCS-930

Summary

Introduction to FCS-930;960

Unpacking the FCS-930;960 Unit

Mechanical Installation Guidelines

FCS-930;960 Connections and Wiring

Setting the AC Voltage

How to select the correct AC voltage for the unit's operation.

Safety Earthing Procedures

Correctly connecting the safety earth wire for user protection.

AC Power Fusing and Replacement

Information on fuse types, rating, and replacement for power protection.

Audio Input and Output Connections

Details on balanced and unbalanced audio wiring conventions.

Ground Loop Control Strategies

Methods to prevent or reduce ground loop hums in audio systems.

Powering Up the Unit

Sequence and indicators for safely powering on the FCS-930/960.

FCS-930;960 Control Descriptions

Front Panel Controls Overview

Detailed explanation of all controls located on the front panel.

Rear Panel Connections and Features

Description of rear panel connectors, fuse, and power switch.

Using the FCS-930;960 Equaliser

Filter Shape and Interaction Effects Explained

Appendix: Chassis;0 v, Transformers, and Security

Chassis;0 v Link Removal Procedure

Steps for isolating the signal ground from the chassis for troubleshooting.

Transient Suppressor Replacement

Guidance on replacing voltage dependent resistors for surge protection.

Optional Transformer Balancing Fitting

Instructions for fitting optional input/output balancing transformers.

Optional Security Cover Installation

Information on attaching a steel security cover to the unit.

FCS-930;960 Technical Specifications

FCS-930;960 Warranty Information

BSS Audio FCS-960 Specifications

General

Subsonic Filter	18Hz, 12dB/octave
Input Impedance	Balanced 20kΩ, unbalanced 10kΩ
Output Impedance	50 Ω
THD+N	< 0.01% at +4dBu, 1kHz
Channel Separation	>80 dB @ 1 kHz
EQ Range	+/-15dB
Filters	30 bands, 1/3 octave
Bypass	Hardwire relay bypass
Input Connectors	XLR
Output Connectors	XLR