ALLEN & HEATH ML5000 User's Guide Page 22
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22 ML5000 User Guide
A MONO INPUT and EQ
A1 +48V. Switches +48VDC to the channel input
XLR for powering microphones or DI boxes that
need phantom power. The power is current limited
through 6800 ohm resistors to pins 2 and 3.
WARNING Do not connect unbalanced
sources or cables to inputs with phantom power
selected. To avoid loud clicks always mute the
channel before switching +48V on or off and
when plugging or unplugging microphones.
A2 GAIN. Adjusts the input sensitivity to match
the connected source to the internal 0dBu operating
level of the channel. Provides a variable 50dB
range from +10 to +60dB gain. The gain should be
set so that the channel meter averages ‘0’ with
loudest moments lighting ‘+6’. Reduce gain if the
red peak meter lights.
A3 PAD. Attenuates the input signal by 20dB for
connection to high level microphone or line sources.
When pad is selected the gain control adjusts from
–10dB attenuation to +40dB gain.
A4 POLARITY. Reverses the polarity of the
input signal. This is used to correct reverse wired
cables or sources, and can be effective in reducing
phasing problems between microphones or acoustic
feedback between the microphone and
loudspeakers.
A5 HPF FREQUENCY. Adjusts the cut off
frequency of the high pass filter between 20Hz and
400Hz to reduce low frequency source noise. The
filter attenuates frequencies below cut off by 12dB
per octave.
A6 HPF IN. Switches the high pass filter in or
out. When switched out the response extends to
lower than 10Hz.
Using the Filter
Switch in the filter and adjust the cut off frequency
to clean up sources that do not have much bass
content, for example drum kit overheads (set to
400Hz), reduce proximity popping on vocals (set
around 150Hz), reduce handling noise and stage
rumble, or protect the speakers from very low
frequency energy (set around 30 to 50Hz). Switch
out to preserve full sub energy for low frequency
sounds such as kick drum, bass and special effects.
10k1kHz100 30k
-35
-40
10
-30
-25
-20
-15
-10
-5
0dB
+5
+10
20Hz 400Hz
HIGH PASS FILTER
+48V
- 10 10
GAIN
20
4060
30
20Hz
400
100
50 200
O
PAD
HPF
40
20dB
Q
-15 +15
-15 +15
-15 +15
7kHz
3k
2kHz 20kHz
10k
HF
100Hz
50
20Hz 200Hz
150
LF
1kHz
LM
Q
-15 +15
HM
EQ IN
0.6 2.5
1.2
0.6 2.5
1.2
3kHz
500Hz
700
1k
15k
5k
7k
180
45
35Hz
60
450
300
- USER GUIDE 1
- Introduction 2
- Contents 3
- Limited One Year Warranty 4
- General Precautions 6
- ML5000 Key Features 7
- QUICK START SHEET 8
- Using LCRplus™ 8
- To Clear or Set All : 9
- Using P/AFL : 9
- Problems ? 9
- 10 ML5000 User Guide 10
- ML5000 User Guide 11 11
- Technical Specifications 12
- ML5000-48 = 2106 13
- ML5000-40 = 1851 13
- ML5000-32 = 1596 13
- ML5000-24SC = 831 13
- Connecting the Power Supply 14
- Earthing 15
- Rear Panel Connections 16
- 18 ML5000 User Guide 18
- Gain Structure 19
- CONTROL LAYOUT 20
- A MONO INPUT and EQ 22
- Using the Filter 22
- Using the Equaliser 23
- B GROUP / AUXILIARY SENDS 24
- Internal Link Options 25
- Using the GRP/AUX Sends 25
- Removing the Fader 27
- Using LCRplus 28
- E STEREO INPUT and EQ 30
- Using the Dual Inputs 31
- Using Mono Sources 31
- 32 ML5000 User Guide 32
- H ROTARY AUX 1-8 MASTERS 34
- Configuring Groups and Auxes 34
- I MAIN MIX MASTERS 35
- J MATRIX and 2-TRACK 36
- 2-TRACK Output 36
- Using the Matrix 37
- K VCA GROUPS 38
- VCA Groups Explained 38
- The benefits of VCA grouping 38
- Using VCA Groups 39
- Using PAFL 39
- To Assign a VCA Group 40
- SELECT GROUP TO EDIT 41
- ASSIGN USING CH MUTES 41
- M SNAPSHOT MEMORIES 42
- A Note on Snapshot Mutes 42
- Snapshots Explained 42
- STATUSMIDI RS232 43
- Previewing Snapshot Memories 44
- To Store a Snapshot Memory 44
- To Disable Store 44
- To Recall a Snapshot Memory 45
- Turning all Mutes On or Off 45
- Using Snapshot Memories 45
- N SOLO-IN-PLACE 46
- Solo-In-Place Explained 46
- Solo Safes Explained 47
- Making a Channel Solo Safe 47
- Using Solo-In-Place 47
- The Console Monitor System 48
- The Monitor Logic 48
- Q OSC/NOISE GENERATOR 50
- R INTERCOM 51
- The Intercom Explained 51
- S TALKBACK 52
- Using Talkback 52
- The Console Meterpod 53
- Meter Types 54
- Changing from LRC to LCR 54
- 9 Recall snapshot memories 55
- Channel Mutes 56
- Snapshot Memories 56
- MIDI AFL Messages 56
- 58 ML5000 User Guide 58
- USER NOTES : 59
- 60 ML5000 User Guide 60
- Visit Allen & Heath : 60
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