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PROFESSIONAL AUDIO MIXER

21

MX-1646D

Applications

Applications

GROUP OUTPUTS

AUX OUTPUTS

CONTACT INPUT

AUX4

AUX3

AUX2

AUX1

G 4

G 3

G 2

G 1

GROUP OUTPUTS

AUX OUTPUTS

CONTACT INPUT

PC AUDIO

CD PLAYER

D.I

BOX

IN

PC

USB

SD

Wireless MIC

DSP Embedded Power Amplifier

Main Speaker

Main Speaker

Subwoofer Speaker

Process

Keyboard

guitar

Front Fill Speaker

Side Fill Speaker

Stage Monitor Speaker

Emergency

Broadcasting System

MIC

Graphic Equalizer

Power Amplifier

Power Amplifier

Summary of Contents for MX-1646D

Page 1: ...Operation Manual Professional Audio Mixer MX 1646D ...

Page 2: ...l remain readily accessible CAUTION These servicing instructions are for use by qualified service personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC...

Page 3: ...t 2 Important Safety Instructions 2 Features 3 How to Operate 3 Front Panel 4 Rear Panel 12 How to Operate Effector Playback Record 14 Troubleshooting 20 Applications 21 Block Diagram 22 Specifications 23 Service Procedures 26 Schematic 26 Parts List 26 Variations and Options 26 Warranty 26 ...

Page 4: ...s or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician f...

Page 5: ...ening to the sound through the monitor output or headphones use the EQ VOLUME to adjust the output sound quality as your preference Features 16 CHANNEL INPUTS 8 channel mono microphone XLR and line 1 4 PHONE inputs 4 channel stereo line 1 4 PHONE RCA inputs EQUALIZER 3 band EQ for mono input channels HIGH 10kHz MID 1 2kHz LOW 100Hz 2 band EQ for stereo input 1 2 channels HIGH 10kHz LOW 100Hz VARIO...

Page 6: ... volumes of unused channels be kept to the minimum position 2 EQ EQUALIZER You can adjust the tone of the input signal MONO channel 3 bands High Mid Low fixed EQ STEREO 1 2 channel 2 bands High Low fixed EQ The center frequency range and type of each equalizer are shown below 1 High EQ HIGH 10kHz 15dB shelving type 2 Mid EQ MID 1 2kHz 15dB peaking type 3 Low EQ LOW 100Hz 15dB shelving type ST 3 PK...

Page 7: ... that you can individually check the signal on each channel through the headphone monitor output and level meter When the SOLO switch is pressed the corresponding PEAK SOLO LED blinks in green 7 PEAK SOLO LED The LED lights red in PEAK status and blinks green in SOLO status When PEAK and SOLO are turned on at the same time the LED lights up in orange 8 BUS ASSIGN SWITCH MIX switch Select this swit...

Page 8: ...l with the ST3 input signal 4 SD USB MIX SWITCH This switch mixes SD USB playback signal with the ST4 input signal 5 USB SD PLAYBACK VOLUME It adjusts the signal output level of SD USB playback Adjustment Range 0dB 6 SD USB SELECTION SWITCH You can select SD card or USB memory to use it for Playback or Recording The AUX FX PAN and FADER parts of the STEREO channel are the same as those of the MONO...

Page 9: ...n blue when the AC power is supplied and the POWER switch is turned on 3 SOLO LED The LED indicates whether the SOLO function is activated If any SOLO switch is selected among the input and output channels the LED lights up in green 4 GROUP LEVEL METER These level meters G1 G2 G3 G4 indicate the signal level of the GROUP buses 5 MIX SOLO LEVEL METER These level meters indicate the output level of ...

Page 10: ...nd its status LED You can select FX TRACK or FOLDER mode 4 PLAY PAUSE STOP REC BUTTON You can play stop the sound source and switch between Play and Record modes by using these buttons 5 FX OUTPUT SWITCH It is a switch to output effector output signals to your desired bus MIX Mix the effector signal with the Mix output channel G 1 2 Mix the effector signal with Group Output 1 2 channels G 3 4 Mix ...

Page 11: ...R INDICATOR It is an LED number indicator that displays the effect program number track number and folder number 8 CONTROL ENCODER It is an encoder that allows you to select the effect program number desired track or folder For detailed information on how to operate digital functions refer to How to Operate Effector Play Record page 14 ...

Page 12: ...0dB 2 RECORDING VOLUME It adjusts the level of the recording signal When the volume is in 0dB Mark the reconding level is the same with the Mix output level Adjustment Range 10dB 1 2 3 4 9 8 7 6 5 PK SOLO AUX4 AUX3 AUX1 AUX2 PHONES MONITOR RECORD 10 0 10 0 10 10 10 10 10 A A AUX1 10 A AUX2 10 AUX4 10 AUX3 10 Output Controls ...

Page 13: ...l to connect headphones for monitoring Standard 1 4 inch TRS Phone Jack Caution Make sure to use stereo type connector Using a mono type connector may cause a short circuit and damage the headphone output circuit 6 HEADPHONE OUTPUT VOLUME It is a volume to adjust the headphone output level Adjustment Range 0 10 7 MONITOR OUTPUT VOLUME It is a volume to adjust the monitor output level Adjustment Ra...

Page 14: ...nt 5 TRS STEREO INPUTS It is line level input terminal Standard 1 4 inch Phone Jack that can receive a stereo balanced audio signal Use the TRS TIP HOT RING COLD SLEEVE GND connector to connect to the line level equipment If you connect only to the L channel input you can use the corresponding channel R Channel input in mono mode If you connect the connector to the R channel input it is automatica...

Page 15: ...ct to the amplifier or powered speaker 10 HI Z INPUTS It is a line level input terminal Standard 1 4 inch TRS Phone Jack that can receive mono balanced audio signal Use the TRS TIP HOT RING COLD SLEEVE GND plug to connect to the line level equipment The PHANTOM power is not provided 11 CONTACT INPUT It is a terminal that can be connected with emergency broadcasting system to receive contact closur...

Page 16: ... kinds of effectors Please refer to the following Table 2 Types of Digital Effectors You can select the type of effector in the FX mode and check the current effect number through the LED number indicator Turn the ENCODER switch to move to the effector number that you want to select The effector number blinks MO ODE Small hall Big hall Room Church Gated Reverse Chapel Spring Phaser Flanger Echo Ch...

Page 17: ...B ON OFF switch Select the SD USB selection switch to select your desired memory to use during playing recording Use the SD USB VOL to adjust the SD USB playback output level No Program Function 01 Small hall Reverb Effect Small hall 1 5 sec 02 Big hall Reverb Effect Big hall 2 8 sec 03 Room Reverb Effect Room 1 8 sec 04 Church Reverb Effect Church 7 sec 05 Reverse Reverse Reverb Effect 1 2 sec 06...

Page 18: ...d it is in the PLAY mode Caution If a lot of files are stored in the USB SD memory it may take some time until the LED of the STOP button lights up and the PLAY mode is operated Folder 1 is the root folder If you add folder s folders are sorted starting from 2 If a folder does not have supported audio file the corresponding folder is not displayed Table 3 USB SD Memory Support Specifications SD CA...

Page 19: ...V 5 If there are more than 101 files per folder the playback order is arranged according to the FAT rule memory save order Image 1 File Folder Sorting Method 5 How to Change Play Record Mode Play Mode You can play the file in the USB memory or SD card Record Mode You can record the MIX output signal of the mixer in the USB memory or SD card Press the REC button to switch between Play mode and Reco...

Page 20: ...tton to change into TRACK mode You can check the current track number in the current folder on the LED number indicator The track number is displayed up to 99 per folder If there are more than 99 tracks then the number is continuously displayed as 99 Turn the encoder switch clockwise to move to the next track Turn the encoder switch counter clockwise to move to the previous track If you move a tra...

Page 21: ...el When the volume is in 0dB Mark the recording level is the same with the Mix output level Press the PLAY PAUSE button to start recording If there are many files in memory then it takes time to enter into the recording ready status and complete all the preparation process before starting to record Press the STOP button during recording to stop recording and save the recording file The recording i...

Page 22: ...ssed The audio signal is distorted 1 Check whether the INPUT GAIN VOLUME is adjusted to high level 2 Check whether the PEAK over input LED blinks in red 3 Check whether the OUTPUT LEVEL METER LED blinks in red The effector sound is not output 1 Check whether the FX volume for the corresponding input is in minimum position 2 Check whether the FX output volume is in minimum position 3 Check whether ...

Page 23: ...G 1 GROUP OUTPUTS AUX OUTPUTS CONTACT INPUT PC AUDIO CD PLAYER D I BOX IN PC USB SD Wireless MIC DSP Embedded Power Amplifier Main Speaker Main Speaker Subwoofer Speaker Process Keyboard guitar Front Fill Speaker Side Fill Speaker Stage Monitor Speaker Emergency Broadcasting System MIC Graphic Equalizer Power Amplifier Power Amplifier ...

Page 24: ...PUT FADER LEVEL METER GRP2 GRP2 OUTPUT FADER LEVEL METER GRP3 GRP3 OUTPUT FADER LEVEL METER GRP4 GRP4 OUTPUT FADER LEVEL METER MIX L MIX L OUTPUT FADER MIX R MIXR OUTPUT FADER PHONE OUTPUT MON L OUTPUT MON R OUTPUT PHONES MONITOR SOLO IND SOLO CMD SOLO LEVEL METER LEVEL METER EFFECTOR To RECORD_L To RECORD_R MCU 7 SEG PLAY STOP REC KEYS LED USB SD TO EFFECT MIX GRP ENCODER MIX L MIX R MIX L MIX R ...

Page 25: ...el 20dBu 10dBu MIX OUTPUT Connector XLR type Male Electrically Balanced Output Impedance Less than 100Ω Max Level 20dBu Typ 23dBu GROUP OUTPUT Connector TRS Jack Electrically Quasi Balanced Output Impedance Less than 100Ω Max Level 20dBu Typ 23dBu AUX OUTPUT Connector TRS Jack Electrically Quasi Balanced Output Impedance Less than 100Ω Max Level 20dBu Typ 23dBu MONITOR OUTPUT Connector TRS Jack El...

Page 26: ...ving Channel EQ STEREO High 10kHz 15dB Shelving Low 100Hz 15dB Shelving USB SD Playback Format MP3 WAV Recording Format WAV 16bit PCM 44 1kHz Contact Closure INPUT Dry Contact Operating Temperature 10 40 Humidity 0 90 35 Power Supply AC 220V 240V 50Hz 60Hz Power Consumption 30W Weight SET 5 88kg 12 96lb Dimensions SET Including Rack Bracket 483 W x 105 H x 310 D mm 19 W x 4 1 H x 12 2 D in Includi...

Page 27: ...PROFESSIONAL AUDIO MIXER 25 MX 1646D DIMENSIONS 310 483 440 105 67 18 ...

Page 28: ...ilable by contacting your warranty provider Variations and Options Variations and Options Variations Products supplied through legitimate sources are compatible with local AC power requirements Options No optional items are available for this product Warranty Warranty Warranty terms and conditions vary by country and may not be the same for all products Terms and conditions of warranty for a given...

Page 29: ...NOTE ...

Page 30: ...NOTE ...

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Page 32: ...ean company but rather a global company that is truly international in scope with factories and offices in Korea and China and sales and marketing operations located in Japan Europe and the U S A With more than 850 employees around the globe Inter M is well poised for further growth and expansion Inter M Americas INC 5666 CORPORATE AVE CYPRESS CA 90630 TEL 1 714 828 2200 FAX 1 714 828 2210 Home Pa...

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