User
Manual
'
s
DMi 4|2500A/DMi 4|3500A
DMi 2|2000A/DMi 2|3000A/DMi 2|4000A
Professional Power Amplifier
Page 1: ...User Manual s DMi 4 2500A DMi 4 3500A DMi 2 2000A DMi 2 3000A DMi 2 4000A Professional Power Amplifier ...
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Page 3: ...ction Diagram 10 Speakon Connection socket 10 Speakon Connector 10 Connection Mode Introduction 11 12 Bridge Mode 11 12 Parallel Mode 11 12 Stereo Mode 11 12 Detailed Specifications PROT indicator long time on 16 Background noise is loud 16 One Channel has no output 16 Distortion 16 Specification 14 15 Troubleshooting Installation Bracket Installation 13 Introduction 4 Main Features 4 Contents 1 W...
Page 4: ... the unit cover Otherwise it may cause electric shock If it is deemed necessary to repair service or repair the product contact the factory Do not modify this unit Otherwise it may cause a fire or electric shock If a lightning strike occurs switch off the power switch of the unit as soon as possible and unplug the power cord from the power outlet If lightning may occur do not touch the plug of the...
Page 5: ...fficient air flow the internal temperature of the power amplifier may rise and may cause a fire To mount several of the power amplifier on a standard EIA stand please refer to the installation instructions When removing the power amplifier firstly unplug the AC power cord from the AC socket And unplug all connecting cables Otherwise it may damage the cable resulting in a fire or electric shock Whe...
Page 6: ...it affected by the electromagnetic of transformer Protection System It has multiple protection features such as output short circuit protection overload protection DC protection VHF protection output voltage automatic limiter High Temperature Auto Power Limit on progressive volume etc Well protect your system devices Sound Characteristic MF warm mellow full of human voice LF powerful moderate expe...
Page 7: ...s CH1 and CH2 5 CH2 Volume Knob Input signal attenuator in stereo and parallel mode they control the volume of the corresponding channel when bridged CH2 volume knob is idle and not controlled 6 Function LED lights 6 1 CLIP Level LED light A red indicator will light when the amplitude of the output signal of the corresponding channel above the nominal power has shaved off and is more than 1 distor...
Page 8: ... controlled 4 3 CH3 Volume Knob Input signal attenuator in stereo and parallel mode they control the volume of the corresponding channel when bridged CH3 will control the volume of the two channels CH3 and CH4 4 4 CH4 Volume Knob Input signal attenuator in stereo and parallel mode they control the volume of the corresponding channel when bridged CH4 volume knob is idle and not controlled 5 Functio...
Page 9: ...ost connected to the negative terminals of spaker 7 Fan Outlet The fan draws air from the chassis 8 Input Sensitivity Switch 0 775V 0dBu 1V 0dBv 32dB Threes input gain choices 9 Working Mode Switch 1 Stereo CH1 2 Function Independent work and control 2 Parallel 1 Input signal to CH1 CH1 is paralleled with CH2 CH1 and CH2 are controlled independently now CH2 input is invalid 3 Bridged 1 Input signa...
Page 10: ...speaker 4 Speakon4 2 2 Idle Bridge Mode Speakon1 1 2 Respectively Connect the positive negative terminals of speaker 2 Speakon3 1 2 Respectively Connect the positive negative terminals of speaker 2 6 Input Sensitivity Switch 0 775V 0dBu 1V 0dBv 32dB Three input gain choices 7 Working Mode Switch 1 Stereo CH1 4 Function Independent work and control 2 Parallel 1 Input signal to CH1 CH1 is paralleled...
Page 11: ...als of speaker and Channel 2 black Binding post connected to the negative terminals of speaker Channel 3 red Binding post connected to the positive terminals of speaker and Channel 4 black Binding post connected to the negative terminals of speaker 10 Fan Outlet The fan draws air from the chassis Note The output of all amplifiers will produce high voltage Live installation is not allowed There sho...
Page 12: ... cable peel off the 15mm long insulation and place the bare wire through the appropriate binding post of the speaker Tighten the posts until they grip the wire firmly Refer to the socket for the polarity of the speaker Speakon Connection Socket 1 Switch off POWER 2 Plug the Neutrik NL4FC into Speakon socket on the rear panel of amplifier and then lock it clockwise Unbalanced XLR wiring diagram Bal...
Page 13: ...aker impedance varies depending on the connection method and the connected speaker parameters Be sure that the speaker impedance is not lower than the lowest value shown below Bridge Mode If the amplifier is set to BRIDGE mode only the CH1 volume knob is active The CH2 volume knob is disabled INPUT CH1 CH2 Each channel is equipped with two sockets Note that when using BRIDGE or PARALLEL mode only ...
Page 14: ... channel 1 and the negative pole of channel 2 The bridge output is doubling the output voltage Connect the speakers as shown below Note that the speaker impedance varies depending on the connection method and the connected speaker parameters Be sure that the speaker impedance is not lower than the lowest value shown below Bridge Mode If the amplifier is set to BRIDGE mode only the CH1and CH3 volum...
Page 15: ... working temperature is also suggested below 35 Due to lots of dust in construction environment there might be much dust in filter sponge blocking wind path It s advised to clean sponge with high power vacuum cleaner Monthly maintenance can guarantee good heat radiation Besides please do not pile cables before air outlet Kindly tie them up and put them on amps two sides When stacking not horizonta...
Page 16: ... 1 2 Rated Output Power 98dB 200 1 kHz and below 70dB 1 kHz and below 20KΩ 10KΩ balanced Unbalanced front to rear airflow 0 775V 1V 32dB Soft start DC short circuit clip limit over heat temperature rise automatic reduce power progressive volume Working state voltage CLIP SIG ON LCD screen Stereo Parallel Bridge 3 pin XLR electronically balanced Nl4 Speakon Binding post Power switch Volume control ...
Page 17: ...on Soft start VHF DC short circuit clip limit over heat progressive volume Working state voltage CLIP SIG ON LCD screen Front panel indicator 680Wx4 1100W x4 2200W x2 1300W x4 Stereo Parallel Bridge Gain switch ground switch 3 pin XLR electronically balanced Nl4 Speakon Binding Post Power switch Volume control 620mmx590mmx185mm 483mmx493mmx89mm 220V 50Hz 10 Connectors Input connectors per ch Outpu...
Page 18: ...adjust the pre amp processor Signal cable or speaker cable connection abnormal Mode switch is not toggled in place ___ When the signal light is normal please check the speaker cables Mode switch Check if mode switch on rear panel is set correctly Mode Switch Toggle the mode switch several times to see if it returns to normal status Distortion Signal cable problem ___ Listen to the sound and check ...
Page 19: ... the user replaces any part of the machine by himself C The serial number is altered or tore up the warranty label D Negligent use water or other objects are getting into the machine and cause damage E Failure or damage caused by a natural disaster Any cost will be covered by the users with the following circumstances A As a result of natural or man made or other irresistible matter the product is...
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