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Stereo Input Channel

1

p. 24

X 18R

™

 / X 20R

™

 Owner’s Manual 

Module

Block Diagram

Controls

Содержание X 18R

Страница 1: ...Owner s Manual X Series Rack Mount Mixers X 18R X 20R ...

Страница 2: ......

Страница 3: ...nit or operate the unit while standing in liquid 8 The power cord of equipment should be unplugged from the out let when left unused for a long period of time Service Information Do not open unit Opening the unit will expose you to poten tially dangerous voltages There are no user serviceable parts inside Equipment should be serviced by qualified service personnel when A The equipment has been exp...

Страница 4: ...isé dans ce manuel pour indiquer à l utilisateur la présence d une tension dangereuse pouvant être d amplitude suffisante pour constituer un risque de choc électrique Ce symbole est utilisé dans ce manuel pour indiquer à l utilisateur qu il ou qu elle trouvera d importantes instructions concernant l utilisation et l entretien de l appareil dans le paragraphe signalé ATTENTION Risques de choc élect...

Страница 5: ...ear support should be provided 17 Note for UK only If the colors of the wires in the mains lead of this unit do not correspond with the terminals in your plug proceed as follows a The wire that is colored green and yellow must be connected to the terminal that is marked by the letter E the earth symbol colored green or colored green and yellow b The wire that is colored blue must be connected to t...

Страница 6: ... Schlag und Erdung zu Schließen Sie nur an die Stromversorgung der Art an die am Gerät neben dem Netzkabel angegeben ist 16 Wenn dieses Produkt in ein Geräte Rack eingebaut werden soll muss eine Versorgung über die Rückseite eingerichtet werden 17 Hinweis Nur für Großbritannien Sollte die Farbe der Drähte in der Netzleitung dieses Geräts nicht mit den Klemmen in Ihrem Stecker übereinstimmen gehen ...

Страница 7: ...t a Le connecteur vert et jaune doit être connectrer au terminal noté E indiquant la prise de terre ou correspondant aux couleurs verte ou verte et jaune du guide b Le connecteur Bleu doit être connectrer au terminal noté N correspondnat à la couleur noire du guide c Le connecteur marron doit être connectrer au terminal noté L correspondant à la couleur rouge du guide 18 Cet équipement électrique ...

Страница 8: ...quipo use algún tipo de apoyo trasero 17 Nota para el Reino Unido solamente Si los colores de los cables en el enchufe principal de esta unidad no corresponden con los terminales en su enchufe proceda de la siguiente manera a El cable de color verde y azul debe ser conectado al terminal que está marcado con la letra E el símbolo de Tierra earth coloreado en verde o en verde y amarillo b El cable c...

Страница 9: ...s of construction workmanship all Crest Audio console products excel in every aspect This owner s manual covers the X 18R and the X 20R models of X Series mixers Features are identical for both models the only difference is the number of Mono Inputs versus Stereo Inputs The X 18R has 14 Mono inputs and 2 Stereo inputs add ing up to a total of 18 microphone inputs The X 20R has 12 Mono inputs and 4...

Страница 10: ...X 18R X 20R Owner s Manual p 10 X 18R 20R Block Diagram ...

Страница 11: ...eries a compact flexible feature rich addition to Crest Audio s extensive line of audio mixing console products Conventions Control Icons This manual uses symbols to illustrate what the control descriptions are referring to This makes it possible to avoid redundant wording and makes the control descriptions clear Switch in the UP non activated position Switch in DOWN activated position Switch that...

Страница 12: ...Mono Input Channel 1 X 18R X 20R Owner s Manual Module Block Diagram Controls p 12 ...

Страница 13: ...oad When a plug is inserted into the 1 4 TRS input jack the XLR mic input signal is disconnected and the signal present on the 1 4 plug is fed to the preamp If plugs are inserted into both the XLR andTRS jacks this switch acts as an input selector switch between the two jacks Gain The Input Gain control is used to establish proper gain structure in the channel For best results use the Solo system ...

Страница 14: ...Mono Input Channel 1 p 14 X 18R X 20R Owner s Manual Module Block Diagram Controls ...

Страница 15: ...cut along with tunable frequency High Frequency HF Boost Cut 15 dB boost and cut Shelving 12 kHz High Mid HM Frequency continuously sweepable between 400 Hz and 8 kHz Boost Cut 15 dB boost and cut Bell curve with a BW of approx 1 5 octaves Low Mid LM Frequency continuously sweepable between 100 Hz and 2 kHz Boost Cut 15 dB boost and cut Bell curve with a BW of approx 1 5 octaves Low Frequency LF B...

Страница 16: ...p 16 Mono Input Channel 1 X 18R X 20R Owner s Manual Module Block Diagram Controls ...

Страница 17: ... internal setting per channel can be changed so that this PRE source becomes either pre insert or pre EQ An additional jumper allows this PRE setting to also be independent of the channel mute Aux 1 2 PRE AUX 1 2 stereo pair is post fader AUX 1 2 stereo pair is pre fader Aux Sends 1 2 Auxes 1 and 2 are permanently configured as a stereo pair The upper knob controls the level and the lower knob is ...

Страница 18: ...p 18 Mono Input Channel 1 X 18R X 20R Owner s Manual Module Controls Block Diagram ...

Страница 19: ...G 1 2 BusAssign The channel is assigned to Groups 1 and 2 through the PAN pot Groups 1 and 2 are normally treated as a stereo pair They can also be used as discrete mono groups by using the PAN control at its full CW or CCW setting G 3 4 BusAssign The channel is assigned to Groups 3 and 4 through the PAN pot Groups 3 and 4 are normally treated as a stereo pair They can also be used as discrete mon...

Страница 20: ...Mono Input Channel 1 X 18R X 20R Owner s Manual Rear Panel Block Diagram Connectors p 20 ...

Страница 21: ...tion if the jack is being used Tip is Positive Input Ring is Negative Input Sleeve is Chassis Ground Input impedance is 20K balanced XLR Mic Input Jack This balanced female XLR accepts a low impedance microphone signal or a line level signal depending on the position of the LINE INPUT switch on the front panel Pin 2 is Positive Input Pin 3 is Negative Input Pin 1 is Chassis Ground Input impedance ...

Страница 22: ...Stereo Input Channel 1 p 22 X 18R X 20R Owner s Manual Module Block Diagram Controls ...

Страница 23: ...ne signals down to a controllable level avoiding overload When a plug is inserted into a 1 4 TRS input jack the XLR mic input signal is disconnected and the signal present on the 1 4 plug is fed to the preamp If plugs are inserted into both the XLR andTRS jacks this switch acts as an input selector switch between the two jacks Gain The Input gain control is used to establish proper gain structure ...

Страница 24: ...Stereo Input Channel 1 p 24 X 18R X 20R Owner s Manual Module Block Diagram Controls ...

Страница 25: ...B boost and cut Bell curve with a BW of approx 1 5 octaves Low Mid LM Frequency Continuously sweepable between 100 Hz and 2 kHz Boost Cut 15dB boost and cut Bell curve with a BW of approx 1 5 octaves Low Frequency LM Boost Cut 15 dB boost and cut Shelving 80 Hz EQ On Equalizer is OFF The equalizer circuitry is bypassed Equalizer is ON This switch is used to activate the EQ section and can be used ...

Страница 26: ...Stereo Input Channel 2 X 18R X 20R Owner s Manual Module Block Diagram Controls p 26 ...

Страница 27: ... can be used for any type of stereo feed from the console such as live two track recording stereo in ear monitors alternate stereo feed for broadcast and stereo signal processors Also by using the pan control to select a single bus Auxes 1 and 2 can be used as discrete monoAux buses Aux 1 2 Level Sets level for theAux 1 2 stereo pair Aux 1 2 PAN If the SUM INPUTS button is up this knob controls th...

Страница 28: ...Stereo Input Channel 2 X 18R X 20R Owner s Manual Module Block Diagram Controls p 28 ...

Страница 29: ...ssign The channel is assigned to Groups 1 and 2 Groups 1 and 2 are normally used as a stereo pair They can also be treated as two discrete mono groups by using the BAL control as GROUP 1 2 mix control G 3 4 BusAssign The channel is assigned to Groups 3 and 4 Groups 3 and 4 are normally used as a stereo pair They can also be treated as two discrete mono groups by using the BAL control as GROUP 3 4 ...

Страница 30: ...Stereo Input Channel 2 X 18R X 20R Owner s Manual Rear Panel Block Diagram p 30 ...

Страница 31: ...XLRs accept a low impedance microphone signal or a line level signal depending on the position of the LINE INPUT switch on the front panel Pin 2 is Positive Input Pin 3 is Negative Input Pin 1 is Chassis Ground Input impedance is 4K balanced Line Input Jack Line level signals balanced or unbalanced may be brought into the input channel through these 1 4 TRS jacks The LINE switch front panel must b...

Страница 32: ...Master Section 3 X 18R X 20R Owner s Manual Module Block Diagram Controls p 32 ...

Страница 33: ...u can get a number of signals including SOLO Left Right Mono and Monitor Tape feeds Headphone level This knob controls the level that appears at the Headphone Jack SOLO OFF Solo PFL orAFL overrides the default headphone signals unless this button is depressed Whenever something is Soloed it appears in the headphones Soloed signals do not appear in the headphones Useful if an additional L R feed is...

Страница 34: ...Master Section 3 X 18R X 20R Owner s Manual Module Controls Block Diagram p 34 ...

Страница 35: ...vels When some thing is Soloed that signal replaces LEFT and RIGHT on the meters SOLO LED This red LED lights up when anything on the mixer is soloed PWR LED This green LED illuminates to indicate that the mixer is powered up TAPE IN Level On the rear panel there are Left and Right TAPE IN connectors both 1 4 TRS and RCA They can be used to bring in a stereo source such as a two track playback fro...

Страница 36: ...Master Section 3 X 18R X 20R Owner s Manual Module Block Diagram Controls p 36 ...

Страница 37: ...ert and master level control Auxes 1 2 show up in stereo in the system 1 on the left and 2 on the right AUX OUT 3 4 5 6 Level Control These are the master output level controls for Auxes 3 4 5 6 Aux 3 4 5 6 AFL These buttons assign Auxes 3 4 5 6 to the solo system Since they are AFL the signals are monitored after the AUX inserts and master level controls These Auxes are always monitored as a mono...

Страница 38: ...Master section 3 X 18R X 20R Owner s Manual Module Block Diagram Controls p 38 ...

Страница 39: ...he Right mix bus Group Master Faders 1 2 3 4 Each Group has a master fader for adjusting its overall level These signals show up at the Group OUT jacks on the rear panel and can be assigned to the Left Right and Mono buses They also feed the Solo system when the Group AFL buttons are down GroupPK SIG LED Indicators These two color LEDs are used to monitor each of the group s signal levels Signal p...

Страница 40: ...Master Section 3 X 18R X 20R Owner s Manual Block Diagram Controls p 40 ...

Страница 41: ...t outputs You can assign several stereo sources to the Monitor bus including theAux 1 2 stereo pair the Left Right buses theTAPE IN and the Groups in stereo odd even pairs The MONITOR system operates in stereo Any stereo signals that are assigned to the Monitor system remain stereo The MONITOR system operates in mono Any stereo signals that are assigned to the Monitor system are summed together in...

Страница 42: ...Master Section 3 X 18R X 20R Owner s Manual Block Diagram Controls Module p 42 ...

Страница 43: ...RS jacks and RCA phone plugs are provided for easy hookup A1 2 Aux 1 2 Assigns Auxes 1 and 2 to the Monitor outputs Auxes 1 and 2 are configured as a paired stereo Aux bus see Mono input channel description Aux 1 is Left and 2 is Right MONO Assigns the Mono bus to both the Left and Right Monitor outs L R Left Right Assigns the Left and Right buses to the Left and Right Monitor outs G1 2 Groups 1 2...

Страница 44: ...Master Section 3 X 18R X 20R Owner s Manual p 44 Block Diagram Controls Module ...

Страница 45: ...post fader Mono master signal to Solo bus and illuminates the Peak red LED MONO LEFT RIGHT Master faders 100mm These are the master level controls for the main Left Right and Mono outputs ALT OUT L R Sets the level for the Alternate Left Right outputs These outputs are made up of the pre fader Left Right mix If the ADD MONO TO PHONES ALT OUT button is depressed recessed switch located near headpho...

Страница 46: ...Master Section 3 X 18R X 20R Owner s Manual Block Diagram Groups Main Outputs Bus Inputs Block Diagram Main Mix Buses p 46 ...

Страница 47: ...rn comes back at the top of the Master fader Tip is Send Ring is Return Sleeve is Audio Ground Send output impedance is 100 unbalanced Return input impedance is 5K unbalanced Nominal Operating Level 2 dBu NOTE To avoid any degradation of the mixer s output signal any processing gear patched into any insert point should have a low impedance output 100 and must be capable of cleanly driving a 2K loa...

Страница 48: ...Master Section 3 X 18R X 20R Owner s Manual Rear Panel Block Diagram p 48 ...

Страница 49: ...gTRS jacks Pin 2 is the driven output Pin 3 is the GC sense return Pin 1 is chassis NOTE Either type of output jack may be used but you should avoid using both theTRS and XLR simultaneously Because the jacks are parallel wired the shared GC pin can cause ground hum to appear in one of the output jacks if the GC circuit is trying to correct for a ground difference in the other output jack Group Ins...

Страница 50: ...Master Section 3 X 18R X 20R Owner s Manual AC Inlet Information And Warnings Solo Link Connectors Tie Mixers Together Block Diagram Tape Input Block Diagram Alt And Monitor Output p 50 Rear Panel ...

Страница 51: ...tors The Master mixer should have the DIN cable plugged into the IN jack the other end of the cable should plug into the Slave s OUT jack This linking can extend to additional mixers no practical limit Just keep plugging additional DIN cables between the added mixers The global Master control will be the mixer with only one DIN cable plugged into the Link IN jack NOTE 1 You should not plug the end...

Страница 52: ...Connector Pinouts Levels And Info Connector Pinouts Main Panel p 52 Specifications 4 X 18R X 20R Owner s Manual ...

Страница 53: ...ght 30 lbs Internal Power Supply 100 240 VAC 50 60Hz Warranty Five Years Connector Pinout Detail The rear panel of the X 18R 20R is screened with the pinout and electrical details of the I O connectors It is reprinted here for your reference X 18R 20R Internal Options The Input Channels have various options that can be selected If specified at time of order the factory will set up the X Series wit...

Страница 54: ...User Notes 5 X 18R X 20R Owner s Manual p 54 ...

Страница 55: ...User Notes 5 p 55 ...

Страница 56: ...X 18R X 20R Owner s Manual Version 1 0 August 2008 Crest P N 31700059 Crest Audio 5022 Hwy 493 North Meridian MS 39305 www crestaudio com ...

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