Harman 1210KA Peaking, Band, Peak LED, Distort the signal, Channel independently of the main mix

Page 45

Peaking

The point at which a signal rises to its maximum instantaneous level, before falling

 

back down again. It can also describe an equaliser response curve affecting only

 

a band of frequencies, (like on a graphic equaliser), “peaking” at the centre of that

 

band.

Peak LED

A visual indication of the signal peaking just before the onset of clipping, which will

 

distort the signal.

PFL

Pre-fade listen: a function that allows the operator to monitor the pre-fade signal in

 

a channel independently of the main mix.

Phase

A term used to describe the relationship of two audio signals. In-phase signals

 

reinforce each other, out-of-phase signals result in cancellation. Phase is a meas-

 

urement of relative displacement between two waves of identical frequency.

Polarity

A term used to describe the orientation of the positive and negative poles of an

 

audio connection. Normally connections are made with positive to positive, nega-

 

tive to

 

negative. If this is reversed, the result will be out-of-phase signals (see ‘phase’

 

above).

Post-fade

The point in the signal path after a fader and therefore affected by the fader

 

position.

Pre-fade

The point in the signal path before a fader, and therefore unaffected by the fader

 

position.

Rolloff

A fall in gain at the extremes of the frequency response.

Shelving

An equaliser response affecting all frequencies above or below the break frequency

 

i.e. a highpass or lowpass derived response.

Spill

Acoustic interference from other sources.

Transient

A momentary rise in the signal level.

Unbalanced

A method of audio connection which uses a single wire and the cable screen as the

 

signal return. This method does not provide the noise immunity of a balanced input

 

(see above).

+48V

The phantom power supply, available at the channel mic inputs, for condenser

 

microphones and active DI boxes.

Soundcraft EFX/EPM User Guide Issue 1210

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Contents
User Guide Soundcraft EFX/EPM User Guide Issue User Guide EPM Models Contents Safety Symbol Guide Important Safety Instructions Neutral Blue US White Live Hot Brown US Black Introduction Advice for Those WHO Push the Boundaries60-SECOND Guide EFX OverviewPeak LED Phantom PowerMaster Faders Main Meters60-SECOND Guide EPM AUX 1/2 SendsPFL Mono OUT ¼ Jack 22 2-TRACK Inputs23 2-TRACK Controls Mic Input Wiring UPLine Input Insert PointMix Inserts Stereo Inputs Stereo 1/2 and StereoMix Outputs Aux & FX Bus OutputsHeadphones Polarity PhaseGrounding and Shielding Problem Solving Products Under Warranty OUT-OF-WARRANTY ProductsIf in doubt please contact Soundcraft customer support Block Diagram Soundcraft EFX Block Diagram Soundcraft EPM Gain Mono Input Channel EFX shownHF EQ MID EQLF EQ PAN Aux 2 Send EPM onlyMute Input Channel FaderInputs Stereo 1/2 Gain control sets the level of the channel signalGain MF EQBalance FaderChannel Peak LED Soundcraft EFX/EPM User Guide Issue Master Section EFX Power IndicatorMIX OUTPUTS, Inserts & Mono Output Bargraph MetersAUX 1 PRE/POST Switch and AUX 2 on EPM Headphones JackTrack Track to MIXFX BUS Output EFX only Aux 2 on EPM Footswitch EFX onlyStereo Return Inputs EFX only Stereo Return Level EFX onlyFX Operation Select and Load a ProgramSet Audio Levels FX Processor Controls EFX only Reverbs Karaoke Reverb ControlsDelays Modulated Effects Delay ControlsFlanger PhaserTremelo/Pan VibratoFactory Reset Effects Data Chart EFX only Using Your EFX or EPM Console Microphone PlacementInitial Setup Page Applications Application 3 Places of Worship using EFX Application 4 Recording Soundcraft EFX/EPM User Guide Issue Glossary Phase Distort the signalPeaking BandTypical Connecting Leads Soundcraft EFX/EPM User Guide Issue Soundcraft EFX/EPM User Guide Issue Karaoke MARK-UP Sheets EPM Soundcraft EFX/EPM User Guide Issue Part numbers for the kits are Fitting Optional Rackmount EarsSoundcraft EFX/EPM User Guide Issue EPM/EFX Typical Specifications Soundcraft EFX/EPM User Guide Issue Benefit of this Warranty may not be assigned by the End User WarrantySoundcraft EFX/EPM User Guide Issue Soundcraft EFX/EPM User Guide Issue Page Balboa Boulevard Soundcraft Soundcraft USA