APart PM7400MKII audio amplifier
Contents
1. Connect your external mute switch on this connector do not apply any voltages on this connector 28 Vox mute level Use this controller to set the level where the vox mute circuitry of mic 1 will be active 29 Zone 2 right output on balanced XLR connector 30 Zone 2 left output on balanced XLR connector 31 Mic 2 XLR TRS jack combo input This is a copy of the front MIC 2 TRS input jack You can use the front or rear input but not simultaneously You can apply phantom power to the mic by closing jumper JP1 inside the PM7400 MKII Only a qualified technician can do this 32 Mic 1 XLR TRS jack combo input This is a copy of the front MIC 1 TRS input jack You can use the front or rear input but not simultaneously You can apply phantom power to the mic by closing jumper JP2 inside the PM7400 MKII Only a qualified technician can do this 33 Mains inlet mains fuse connector Connect the supplied mains cable here There is also a315 mAT mains fuse inside this connector In case the fuse blows replace it only with a fuse of the same rating INFO APART AUDIO COM ADapt How to mix music and microphone signals You can mix spoken microphone messages with music in different ways using the PM7400 MKII 1 Mix the microphone signals with the music by setting the mic and line level volume controllers to an appropriate level In order to do this the Vox Ext mute switch should not be pressed in and the mute contact a2. DB 1500 HZ TONE CONTROL TREBLE 12 DB 10000HZ POWER CONSUMPTION MAX 10 VA MAINS VOLTAGE 230 VAC 50 HZ DIMENSIONS 481 X 44 X 275 MM 19 1HE NET WEIGHT 3 4 KG SHIPPING WEIGHT 3 8 KG If you experience troubles with hum or buzz you can try to solve them by disconnecting the jumper JP3 inside the device This jumper acts as a ground lift switch and will disconnect the signal ground from safety ground Contact a qualified technician to do this If even this action does not help you have a serious ground loop problem Please switch off all devices first and solve this problem Find the cause by starting from scratch disconnect all sources and other external gear first then connect them one by one This way you will easily find the cause of the ground loop Often this will be a radio tuner or similar device connected to a cable distribution network Ground loops can cause serious damage to audio devices and is NOT covered by warranty APart audio has a very wide product range including adequate and intelligent problem solvers such as our BUZZSTOP MKIII multifunctional ground loop isolator level converter Please visit our website regularly and stay in touch with the latest product updates and events WWW APART AUDIO COM
3. dDapt MANUAL PM7400 MKII Professional two zone stereo pre amplifier mixer INFO APART AUDIO COM dDapt ve _ 1 Microphone 1 TRS input jack this jack has a XLR mirror connector at the back You can use the XLR or the front jack but not both simultaneously You can apply phantom power by closing jumper JP1 inside the device contact a qualified technician to do this 2 Vox Ext mute switch when this switch is pressed you activate the vox or voice over mute function on mic 1 the vox level can be set at the rear When the switch is out i e not pressed you can activate mute with an external switch the ext mute connector is also at the back 3 Mic 1 level controller 4 Mic 2 level controller 5 Microphone 2 TRS input jack this jack has a XLR mirror connector at the back You can use the XLR or the front jack but not both simultaneously You can apply phantom power by closing jumper JP2 inside the device contact a qualified technician to do this 6 Mic 1 and 2 bass tone control for better speech intelligibility gently cut low frequencies A low cut filter to avoid popping noises is already built in and can not be deactivated 7 Mic 1 and 2 mid tone control 8 Mic 1 and 2 treble tone control 9 Mains power switch and power led when you switch the device on the blue led will indicate that the power is on 10 Music or line input bass tone control 11 Music or line input mid tone cont
4. rol 12 Music or line input treble tone control 13 Music or line source volume control Normally this level controller is turned fully clockwise however in some cases it can be usefull to obtain a good loudness balance between music or line inputs and mic inputs 14 Music or line level input selector with this rotary switch you can select between line 1 6 stereo line level inputs 15 Zone 1 volume control with L R signal indicator leds use this level controller as the main zone 1 volume control ler The leds will light up when a strong signal is present at the zone 1 output 16 Zone 2 volume control with L R signal indicator leds use this level controller as the main zone 2 volume control ler The leds will light up when a strong signal is present at the zone 2 output WWW APART AUDIO COM a B 17 Ground connector Connect your system s ground or safety ground on this connector if this is not already done by mounting the unit in a properly grounded rack 18 Line 1 right input on balanced XLR connector 19 Line 1 left input on balanced XLR connector 20 Line 2 L R cinch or RCA connector 21 Line 3 L R cinch or RCA connector 22 Line 4 L R cinch or RCA connector 23 Line 5 L R cinch or RCA connector 24 Line 6 L R cinch or RCA connector 25 Line 6 L R cinch or RCA connector 26 Mono stereo switch Pressing this switch the stereo line inputs 1 to 6 are mixed to mono 27 Ext mute switch connector
5. t the back should be open You will notice that you have to push the microphone level to a very high level This is not recommended 2 Mix the microphone signal of mic 1 with the music using the vox or voice over circuitry The Vox Ext mute switch must be pressed in and the mute contact at the back must be open By setting the mic 1 and vox mute level at the back to an appropriate level you can create an automatic music muting by talking into mic 1 This is not valid for the mic 2 input i e mic 2 signals can not activate the vox circuitry 3 By closing the external mute contact at the back you will mute the music signal Now you can speak into mic 1 or mic 2 The muting circuitry will only mute the music signals and allow the mic signals to pass through This way you can create a microphone priority system easily Please note that the external mute contact at the back can only be connected to a switch Never apply any voltages to the external mute contacts Technical specifications OUTPUT ZONE 1 UNBALANCED 0 DB 600 OHM OUTPUT ZONE 2 BALANCED 0 DB 600 OHM FREQUENCY RESPONSE 20 25000 HZ LINE LEVEL INPUTS THD lt 0 01 S N RATIO gt 90 DB LINE LEVEL INPUTS LINE LEVEL INPUT 1 BALANCED 500 MV 20 KOHM LINE LEVEL INPUTS 2 6 UNBALANCED 500 MV 20 KOHM MIC LEVEL INPUTS 1 AND 2 BALANCED 1 MV 600 OHM PHANTOM POWER MIC 1 2 14 VDC SWITCHABLE JP1 AND JP2 TONE CONTROL BASS 12 DB 80HZ TONE CONTROL MID 12
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