SoundCraft 1601E manual Points to Remember, Working Safely with Sound

Page 11

POINTS TO REMEMBER

In all cases, use good quality twin screened audio cable. Check for instability at the output.

Always connect both conductors at both ends, and ensure that the screen is only connected at one end.

Do not disconnect the mains earth from each piece of equipment. This is needed to provide both safety and screen returns to the system star point.

Equipment which has balanced inputs and outputs may need to be electrically isolated from the equipment rack and/or other equipment, to avoid earth loops.

It is important to remember that all equipment which is connected to the mains is a potential source of hum and interference and may radiate both electrostatic or electromagnetic radiation. In addition, the mains will also act as a carrier for many forms of RF interference generated by electric motors, air-conditioning units, thyristor light dimmers etc. Unless the earth system is clean, all attempts to improve hum noise levels will be futile. In extreme cases there will be no alternative but to provide a completely separate and independent `technical earth' to replace the incoming 'noisy earth'. However, always consult your local electricity supply authority to ensure that safety regulations are not being infringed.

WORKING SAFELY WITH SOUND

Although your new console will not make any noise until you feed it signals, it has the capability to produce sounds which when monitored through an amplifier or headphones can damage hearing. Always turn amplifiers down when turning your console on or off.

The table below is taken from the Occupational Safety & Health Administration directive on Occupational noise exposure (1926.52):

PERMISSIBLE NOISE EXPOSURE

 

DURATION PER DAY, HOURS

SOUND LEVEL dBA SLOW RESPONSE

8

90

6

92

4

95

3

97

2

100

1.5

102

1

105

0.5

110

<0.25

115

Conforming to this directive will minimise the risk of hearing damage caused by long listening periods. A simple rule to follow is the longer you listen the lower the average volume should be.

Please take care when working with your audio - if you are manipulating controls which you don’t understand (which we all do when we are learning), make sure your monitors are turned down. Remember that your ears are the most important tool of your trade, look after them, and they will look after you.

Most importantly - don’t be afraid to experiment to find out how each parameter affects the sound - this will extend your creativity and help you to get the best results.

11

Image 11
Contents Page Potters BAR Contents Important Safety Instructions Green and Yellow US Green/Yellow Recommended Headphone Impedance = 200 Ohms Safety Symbol GuideHeadphones Safety Warning TIPBPM Effects IntroductionPage Mains Installation InstallationGeneral Precautions Shielding Initial Wiring ConsiderationsAudio Wiring Working Safely with Sound Points to RememberEnvironmental Considerations Inspection and InstallationPowering Unpacking and InspectionConnecting to a Typical Sound System Replacing The Faders Making Adjustments and Fitting SparesSetting The Pre-trim Pads Changing The Orientation Of The Phono/Line SwitchesPage TOP Panel DescriptionBPM FX MIX Fader BPM FX Section seeBalanced Booth Outputs -XLR Connectors Rear Connector PanelBalanced Master Outputs -XLR Connectors EQ CUT -Rotary Front PanelMIC / Line Input Combi -XLR ConnectorOperation Getting StartedMIC Insert Socket rearcon Level ControlEQ -LOW Control EQ -HIGH ControlPRE-TRIM Pads Input Selector SwitchesClip Indicators MID EQ Channel Volume FadersTrim HI EQSend -SELECT FX Send & Return / AUXSend -LEVEL Record OUTReturn / AUX -LEVEL Clip IndicatorFX ON/OFF Switch FX SEND/RETURN RE-CONFIGURATIONMaster / Booth Output Fader Curve FaderExciter Headphone Sockets Headphone MonitorLevel MASTER/CUE SelectMonitor Operating Criteria Bank ModeBeats Indicator BPM FX ModuleY Controls TAP/CLEARIsolator BPM FX MIX ON-OFF switchesActivating the Effects Setting UPQuick Start ConnectionsTAP -Tempo Edit OperationBPM Range TAP/CLEAR ButtonApplying the BPM-FX Effect Start SyncRotary Encoder Effect ControlsMIX Fader Band Isolator Single Mode SINGLE/MULTI Mode OperationMode Bank select Program Edit and Recall Multi ModeAdditional speed settings for FILTER/FLANGER/PANNER Frequency EffectsFilter SUB-MENU Repeats Y DelaySpeed WAY Split Y PANSPS Slope Y CutterDepth X mark space ratio Depth Y FlangeResonance is factory set @ 75% Hints & Tips PRE-SET Voice ListBlock Diagram Connecting Leads Troubleshooting Specifications Warranty Post after the channel fader GlossaryEqualising the system to notch out the offending frequencies Riaa