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RCF spa  

M 20X Digital Mixer Reference Guide 

58 

 

7.

 

TECHNICAL SPECIFICATIONS 

 

INPUTS 
MIC preamps CH 1-8 

XLR input connectors 

Gain range = 60 dB 

Input impedance = 3.3 kΩ 

Maximum input level = +18dBu 

MIC/LINE preamps CH 9-16 

COMBO input connectors 

Gain range = 60 dB 

Input impedance (XLR/TRS) = 3.3 kΩ / 12.8 kΩ 

Maximum input level (XLR/TRS) = +18dBu / 29dBu 

Balanced Line inputs CH 17-18 

2 channels 1/4” TRS jack 

Input impedance = 18 kΩ 

Maximum input level = +18 dBu 

Unbalanced inputs CH 19-20 

Stereo 3.5mm mini jack 

Input impedance = 15 kΩ 

Maximum input level = +18 dBu 

OUTPUTS 
MAIN LR 

Balanced XLR 

Output impedance = 50 Ω 

Maximum output level = +24 dBu 

MIIX 1-8 

Balanced XLR 

Output impedance = 150 Ω 

Maximum output level = +24 dBu 

OUT 9-10, routable 

2 channels 1/4” TRS jack 

Output impedance = 150 Ω 

Maximum output level = +24 dBu 

Digital output, routable 

AES3 (XLR) 

DSP ENGINE 

Processing 

32-bit floating-point, 48 kHz Sample Rate 

Internal Mixing Matrix 

28 x 16 

INPUT PROCESSING 
CH 1-16 

Hi-Pass filter 

Delay (up to 100 ms) 

Gate 

4-band Parametric EQ 

Compressor / De-Esser 

CH 17-20 

Hi-Pass filter 

Delay (up to 100 ms) 

Gate 

4-band Parametric EQ 

 
 

 

Summary of Contents for M 20 Series

Page 1: ...r Interface has been designed so that every parameter is reachable within few operations All models are equipped with 20 analog inputs 16 of which are with remote controlled preamps and 14 output chan...

Page 2: ...PROCESSING 14 CHANNEL SECTION 15 GATE SECTION 17 PARAMETRIC EQ 18 DYNAMICS Compressor DeEsser 20 SENDS 22 OUTPUT PROCESSING 24 CHANNEL VIEW 25 8 Band PARAMETRIC EQ 26 DYNAMICS Master Compressor Limit...

Page 3: ...48 AUDIO OUTPUTS 48 SURFACE UTILITIES 48 CUSTOM FADERS 48 CONFIG MIXER 49 TALKBACK 49 USB SD CARD FORMAT 50 SIGNAL GENERATOR 50 CHANNEL UTILITIES 50 INFO 52 USB STORAGE 52 IMPORT 53 EXPORT 54 MIDI SET...

Page 4: ...vel meter shows the PFL level present in the selected channel Keep the input level below the 20 indication to avoid overloaded signals that can cause distortion 4 WI FI DONGLE ENABLED LED INDICATOR Th...

Page 5: ...xtensive programming option are always available and offers immediate control of scene selection play record transport tap tempo user interface shortcuts The USER KEYS functions can also be driven rem...

Page 6: ...essed inhibit the signal to flow to output bus or main mix paths 20 CHANNEL CUE KEYS The CUE keys allow to listen the signal present on the channel through the cue bus routed to PHONES OUTPUT All audi...

Page 7: ...ia LAN and an external Wi Fi Access Point can be connected to the LAN port to communicate with remote control apps running on iOS and Android 8 USB AUDIO PORT A 24 track 24 bit 48 kHz audio interface...

Page 8: ...offering two high quality digital reverbs a programmable delay and a 4th effect which can be configured as a modulation or a second delay All FX Engines offer multiple algorithms to match the specific...

Page 9: ...oid file mismatch 3 Turn on the M 20X digital mixer 4 Once the boot is completed pressing SYSTEM button on the left side of the 5 touchscreen display go to the page SYSTEM UTILITIES FIRMWARE UPDATE 5...

Page 10: ...RCF spa M 20X Digital Mixer Reference Guide 10 8 After a few seconds you will see a confirmation notice before mixer restart 9 After rebooting the new features will be ready to be enjoyed...

Page 11: ...and restore utilities to save and recall the entire state of the mixer including all presets shows and global settings BACKUP FUNCTION PROCEDURE 1 Go to page SYSTEM USB STORAGE BACKUP RESTORE 2 If yo...

Page 12: ...and then press the BACKUP button 5 A full backup has been successfully created on the root of the USB stick mbu file The backup packages will be listed in the box on the right side of the page ready t...

Page 13: ...into the M 20 USB port A 4 From the list box in the right side of the page select the backup package that you want load on your mixer and then press RESTORE button A message box will appear 5 If you...

Page 14: ...vided into the following tabs from left to right CHANNEL GATE PARAMETRIC EQ DYNAMICS SENDS You can touch each of these section to jump to the relevant page Channel strip area that always shows the pri...

Page 15: ...16 PREAMP GAIN Value display Phase inverter 12 dB oct HPF On Off Encoder Parameters assignment Channel Rename Press Enter to confirm Stereo Pairing Enable Phantom Enable Delay Time value display HPF f...

Page 16: ...dB with step of 1 dB HPF FREQ this parameter set the value of the HPF cutoff frequency in the range 20 1k Hz DELAY this parameter set the value of the input Delay time in the range 0 100 ms Input chan...

Page 17: ...ws to set all parameters before hearing the effective sound Viewing Area Encoder Assignment Switch the Gate On or Off using the on screen ON button Preset View shows the last chosen category of preset...

Page 18: ...lease Time in the range 10 1000 ms THRESHOLD set the value of the Threshold in the range 100 0 dB RANGE set the value of the Range in the range 0 60 dB Switch the PEQ On or Off using the on screen ON...

Page 19: ...lly crafted bass presets o EL GUITAR 10 locations with carefully crafted el guitar presets o AC GUITAR 10 locations with carefully crafted ac guitar presets o KEYBOARD 10 locations with carefully craf...

Page 20: ...lter type o Peaking Filter Q parameter in the range 1 20 Band2 Band3 o Peaking Filter Q parameter in the range 1 20 Band4 o High SHELF Filter type o LP Filter type o Peaking Filter Q parameter in the...

Page 21: ...1 1000 ms RELEASE set the value of the Release Time in the range 1 1000 ms FREQ set the value of the Side Chain Frequency in the range 200 8000 Hz For the input Parametric Equalizers are available 10...

Page 22: ...the Encoders are APFL channel send PRE POST ON OFF 4 FX channel sends PRE POST ON OFF Level 8 MIX channel sends PRE POST ON OFF Level DCA and MUTE GROUPS assignment Encoder Assignment Select Send bloc...

Page 23: ...set directly scrolling on the screen or using the Encoder 3 LIST SEL then press LOAD to recall it COPY PASTE M 20 digital mixers provide the possibility to copy the current processing parameters of a...

Page 24: ...he Main LR processing screen is divided into the following tabs CHANNEL VIEW GRAPHIC EQ PARAMETRIC EQ DYNAMICS Similarly to the input channels the left side of the screen doesn t change when navigate...

Page 25: ...elative buttons Send the output mix channel to APFL bus to monitoring and analyzing the audio mix LR bus if you want to use mix as a subgroup DCA and MUTE GROUPS assignment Encoder Parameters assignme...

Page 26: ...mix block Send to APFL for LR and MIX outputs Send to LR for MIX outputs only PRE POST this parameter allows to select if the selected send on mix is Pre or Post Fader ON OFF this parameter allows to...

Page 27: ...e range 12 12 dB TYPE Q this parameter change according to the selected filter band Band1 o Low SHELF Filter type o High Pass 12 dB oct Filter type o High Pass 24 dB oct Filter type Band1 combined wit...

Page 28: ...e DYN On or Off using the on screen ON button Viewing Area Encoder Assignment ATTACK set the value of the Attack Time in the range 1 1000 ms RELEASE set the value of the Release Time in the range 10 1...

Page 29: ...low line indicates the selected frequency zone Select band touching one of the 10 sliders The yellow line indicates the selected band Switch the GEQ On or Off using the on screen ON button For the GEQ...

Page 30: ...effects pages are accessible through the FX button on the left side of 5 TFT Display or through the SEL button on each Master FX strips FX ALGORITHM LIST FX1 REVERB HALL Large Bright Warm Medium Brig...

Page 31: ...are also available in some cases into two variations Bright Warm or Digital Vintage to further help in selecting the proper starting point Four different reverb types are available TYPE VARIATIONS Ha...

Page 32: ...neous full Digital Delays available on Send FX3 and Send FX4 Five different delay types are available TYPE VARIATIONS Stereo usually perfect for smooth and deep reverberations large medium warm bright...

Page 33: ...6 instead of Feedback Feedback 2 of delay 2 feedback instead of Hi Cut MODULATION The M Series provides a Modulation processor available on Send FX4 The Modulation processor can be configure as Chorus...

Page 34: ...ST ON OFF DCA and MUTE GROUPS assignment Encoder Assignment Select Send block moving Encoder 2 FX RETURN strip parameters METER LEVEL PAN FX RETURN ROUTING M 20 digital mixers provide 5 sources for ea...

Page 35: ...ion and Gain Reductions indication for all dynamics processors available on inputs and outputs Gate Compressor DeEsser and Master Compressor Limiter As additional information the last loaded show is s...

Page 36: ...e audio signal of CUE bus is routed to PHONES output and monitored by the Vu Meter bars on the right side of the 5 TFT Display Otherwise when no CUE is activated the CUE ACTIVE led is off and the audi...

Page 37: ...evice USB pen drive or external HDD in different file formats From PLAY REC button on the left side of display you access PLAY REC and SETUP pages SETUP SETUP page allows to configure the Player and R...

Page 38: ...lay Pause Previous track Next track Elapsed Time Remaining Time Scroll bar Shows the current position within the file You can grab the scroll bar and move to the desired position either when in playba...

Page 39: ...USB Mass Storage devices up to four different drives with source points fully configurable through the IO routing page When in MULTITRACK mode all multichannel recordings are stored in the REC folder...

Page 40: ...ta transfer performance We have found that on several USB devices it is recommended to have at least 50 free space on the USB key beyond this percentage most USB keys show significant fragmentation an...

Page 41: ...20 provides Global Configuration parameters that are stored in the mixer as soon as they are modified Saved in each Show Saved in Global Configuration Input Processing Network WiFi settings Output Pro...

Page 42: ...WiFi adapter is used Please notice that the right part of this settings page does not related to any external WiFi AP connected to the LAN but only to the specific case of a USB WiFi dongle connected...

Page 43: ...n overview of functions associated to user keys is available when pressing the VIEW button located just below the USER KEYS Function List PAR1 List PAR2 List None Show Recall Show Sel 1 100 Show Save...

Page 44: ...ll your routing presets INPUTS Through the Input page it s possible to select the source for each input channel and FX return channel Based on available sources M 20 digital mixers provide 3 groups of...

Page 45: ...R and PHONES LR Available sources for all outputs REC OUTPUTS Based on available sources M 20 digital mixers provide 2 groups of Record Outputs routing MIX OUT 01 10 AES OUT LR PHONES LR FX Send 01 04...

Page 46: ...Q DIRECT PATCH 10 PRE EQ DIRECT PATCH 11 PRE EQ DIRECT PATCH 12 PRE EQ DIRECT PATCH 13 PRE EQ DIRECT PATCH 14 PRE EQ DIRECT PATCH 15 PRE EQ DIRECT PATCH 16 PRE EQ DIRECT PATCH 17 PRE EQ DIRECT PATCH 1...

Page 47: ...CT PATCH 07 TRACK 08 DIRECT PATCH 08 TRACK 09 DIRECT PATCH 09 TRACK 10 DIRECT PATCH 10 TRACK 11 DIRECT PATCH 11 TRACK 12 DIRECT PATCH 12 TRACK 13 DIRECT PATCH 13 TRACK 14 DIRECT PATCH 14 TRACK 15 DIRE...

Page 48: ...ching in the ROUTING area and adjust the output LEVEL value using Encoder 2 CALIBRATE FADER button performs 5 points fader calibration through the following operations Move all faders to 10 dB Move al...

Page 49: ...rameters and processing parameters will be reset to default values TALKBACK Analog Channel 16 can be configured as Talkback source Through the SYSTEM TALKBACK page it s possible setup the talkback opt...

Page 50: ...LITIES Channels Utilities summarize some Channel parameters into individual pages divided by category FAT32 is the supported file system for M 20 digital mixers Pressing FORMAT button your device will...

Page 51: ...lows to view and set stereo link on every couple of input and output channel SENDS PRE POST page allows you to set the Pre Post values of all input channels Sends on each MIX and FX bus with a single...

Page 52: ...Data transfers are allowed using an external USB drive It s possible to import and export USB packages for each categories of internal user memories Show Input Gate User Presets Input Dynamics User P...

Page 53: ...nd the press NEXT STEP Preview of the items inside the selected package Select range of memories touching first and last item of your set of memories directly on the screen IMPORT ITEMS window shows t...

Page 54: ...ss NEXT STEP Select range of memories touching first and last item of your range of memories directly on the screen SELECTED ITEMS window shows the number of selected items Then press NEXT STEP In thi...

Page 55: ...ogram Change 01 100 SHOW 01 100 Recall Note ON 1 Mute CH01 9 Mute CH09 17 Mute CH17 25 Mute MAIN LR 33 Mute MIX4 OUT 2 Mute CH02 10 Mute CH10 18 Mute CH18 26 Mute FX1 SEND 34 Mute MIX5 OUT 3 Mute CH03...

Page 56: ...E MIX10 OUT 92 SEL CH08 100 SEL CH16 108 SEL FX4 RTN 116 SEL MIX3 OUT 85 SEL CH01 93 SEL CH09 101 SEL CH17 109 SEL MAIN LR 117 SEL MIX4 OUT 86 SEL CH02 94 SEL CH10 102 SEL CH18 110 SEL FX1 SEND 118 SE...

Page 57: ...channel of the four fader banks assigned name routing source fader level mute value phantom and stereo pair link Each channel tab allows you to jump to the related processing page in order to minimize...

Page 58: ...lanced inputs CH 19 20 Stereo 3 5mm mini jack Input impedance 15 k Maximum input level 18 dBu OUTPUTS MAIN LR Balanced XLR Output impedance 50 Maximum output level 24 dBu MIIX 1 8 Balanced XLR Output...

Page 59: ...channel WAV 48kHz 24 bit patchable Playback 20 channel WAV 48kHz 24 bit patchable USB Audio Interface Upstream 24 channel WAV 48kHz 24 bit patchable Downstream 24 channel WAV 48kHz 24 bit patchable U...

Page 60: ...RCF spa M 20X Digital Mixer Reference Guide 60 8 BLOCK DIAGRAM...

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