Marani LPP-440A User manual

MARANI LPP-440A User Manual
Described below are the functions of the front panel control buttons and encoders for the LPP-
440A.
•Getting Started
As soon as the LPP-440A is turned ON the device model name will appear in the LCD screen:
and a status bar will show the progress of the LPP-440A initialization process:
After the first time activation, the LPP-440A will show on the LCD :
LPP-440A
SPEAKER PROCESSOR
LPP-440A
LPP-440A
P01: Default

•Encoders and ENTER, ESC buttons
The LPP-440A is equipped with 3 Relative Encoders, “PM1”, “PM2” and “PM3”, These encoders
allow you to navigate the user interface and edit sections of the processor. They allow the user
to navigate within the screen for the selection of sub-menus, pages and parameters and to select
the values to be assigned during the editing operations.
The “ENTER” and “ESC” buttons allow the user to confirm or NOT confirm the operations
performed by the encoders.
•UTILITY, A/B/C/D and 1/2/3/4 buttons
The UTILITY button allows the User to enter the Sub-menus and set the general characteristics of
the Processor. The A , B , C and D buttons allow the User to enter the Editing Menus of the
Processor's Input Channels and buttons 1, 2, 3 , 4 allow the User to enter the Editing Menus of
the Processor's Output Channels.
The A , B , C and D buttons as well as the 1, 2, 3 , 4 buttons have double functions dependent on
the push and hold time.
When the A , B , C and D buttons are pushed and held for more than one second Input Channels
A or B or C or D are either muted or unmuted. The red LED will illuminate when the Channel is
muted. When the “MUTE” LED is OFF, then the related Input Channel is UN-MUTED.
A momentary push of the A , B , C and D buttons enters the Editing Mode for the Input Channels
(see later for the Input Channel Editing details).
The blue “EDIT” LED will now be ON.
When the 1, 2, 3 , 4 buttons are pushed and held for more than one second the Output Channels
1, 2, 3 , 4 are either muted or unmuted. The red LED will illuminate when the Channel is muted.
When the “MUTE” LED is OFF, then the related Output Channel is UN-MUTED.
A momentary push of the 1, 2, 3 , 4 buttons enters the Editing Menu for the Output Channels (see
later for the Output Channel Editing details). The blue “EDIT” LED will now be ON.
•LPP-440A Menu and Sub-Menu Structures
As stated above, the start-up default screen is the following factory preset:
From this point, sub-menus are accessed and exited using the UTILITY”, “A/B/C/D”, “1/2/3/4”,
“ENTER” and “ESC” buttons and all parameters and values are navigated by the “PM1”, “PM2” and
“PM3” encoders. Please refer to the following menu structures:
LPP-440A
P01: Default

MENU “UTILITY MENU” [Access by pushing the “UTILITY” button]
PM1 Encoder PM2 or PM3 Encoder
[to navigate between menus] [to chose option, then ENTER to load it;
(*) indicates the selected option]
1 UTILITY MENU:......
<< System Utilities >>
1.1SYSTEM UTILITY: Input Source
<< Input Source >> Source = Analog input
Source =Digital Input
Source = Noise Gen
1.2SYSTEM UTILITY: Noise Generator
<< Noise Generator >> Type = Pink
Type = White
Lev = 0dB
:
Lev:-40Db
1.3SYSTEM UTILITY: Delay Units
<< Delay Units >> Unit = Time(ms)
Unit = Distance (m)
1.4SYSTEM UTILITY: Set Default Value
<< Set Default Value >> [Enter] to confirm
1.5SYSTEM UTILITY: Firmware Version
<< Firmware Version >> Version = 3.1.9
2 UTILITY MENU:......
<< Program Utilities >>
2.1 PROGRAM UTILITY: Recall a Program
<< Recall a Program >> 01 Empty Program
: :
16 Empty Program
2.2 PROGRAM UTILITY: Save a Program
<< Save a Program >> 01: Empty Program
: :
16: Empty Program
2.3 PROGRAM UTILITY: Delete a Program
<< Delete a Program >> 01: Empty Program
: :
16:Empty Program
3 UTILITY MENU:......
<< Interface Utilities >>
3.1 INTERFACE UTILITY: Interface Setup
Interface Setup Source =USB
Source =RS485 ID=1,…,32
Source =TCP/IP DHCP=On/Off
Set IP address IP=192.168.000.01-- 254
4 UTILITY MENU:......
<< Security Utilities >>
4.1 SECURITY UTILITY: Parameter will
Show Parameter be shown
not be shown
4.2 SECURITY UTILITY: Lock Unit
Lock Unit Lock: Off
Lock: On
4.3 SECURITY UTILITY: Change Password
Change Password [ ]
4.4 SECURITY UTILITY: Enter Password
Lock With Password [ ]
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC

MENU “Input A/B/C/D” Input Channels Editing [Access by pushing the “A/B/C/D” button]
PM1 Encoder PM1 Enc. PM2 Enc. PM3 Enc.
[to navigate between menus] [to chose values for the parameters, no need to confirm the chosen values,
which are automatically loaded during the encoders use]
1. In- A/B/C/D [Name] Name
Name = [Name]
-> Name = _ (For Editing the Device's Name, refer to the Details on the“Utility Menus Use” Section)
2. In- A/B/C/D [Name] N.Gate
Bypass=On
-> Bypass=On PM1 N/A. Byp=On/Off Thr=-80.0dBu …-50 dBu
Rel=10ms …1000ms Atk=1ms …1000ms
3. In- A/B/C/D Gain
Gain = + 0.0 dB
-> Gain = + 0.0 dB PM1 N/A. -18 dB 0.1dB
::
+12dB 0.9dB
Step 1dB Step 0.1dB
4. In- A/B/C/D Delay
Delay = 0.000 ms
-> Delay = 0.000 ms PM1 N/A. 000.0000mS 000.0000mS
[1 ms steps] [10.4 us steps]
480.0000mS 000.9984mS
5 In- A/B/C/D [Name] Phase
Phase=Normal
-> Phase=Normal PM1 N/A. Phase= Normal/Invert
6. In- A/B/C/D [Name] RMS Cmp
Bypass=On
-> Bypass=On PM1 N/A. Byp=On/Off
PM1 N/A. Threshold=+20dBu …-10dBu
PM1 N/A. Ratio =2:1 …32:1 Knee=0% …100%
PM1 N/A. Rel=1ms …10.sec Atk=0.1ms …5000ms
PM1 N/A. Make-up=-12dB …+12dB
7. In- A/B/C/D [Name] EQ Byp
Bypass=On
-> Bypass=On PM1 N/A. Byp=On/Off
8. In- A/B/C/D [Name] PEQ-XX(00 to 13)
Byp=on Type=Peaking_Eq
-> Byp=on Type=Peaking_Eq PM1 N/A. Byp=On/Off Type=Peaking_Eq/ Hi Shelv
1/ Hi Shelv 2/ Hi Shelv Q/ Lo Shelv 1/ Lo Shelv 2/Lo Shelv Q/ Low Pass 1/ Low-Pass 2/Low Pass Q/HighPass1/ HighPass2/ HighPassQ/Band-Pass/ Notch Filt/All Pass
1/All Pass 2
Type=Peaking_Eq PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=0.4 …128
Type= Hi -Shelv 1/ Hi -Shelv 2 PM1 N/A. Frequency=20Hz …20000Hz
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC

PM1 N/A. Gain=-15dB …+15dB Q=Fixed
Type= Hi -Shelv Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=0.1 …5.1
Type= Lo-Shelv 1/ Lo-Shelv 2 PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=Fixed
Type= Lo-Shelv Q PM1 N/A. Frequency=20Hz …20000Hz
PM N/A. Gain=-15dB …+15dB Q=0.1 …5.1
Type= Low Pass 1/ Low Pass 2 PM1 N/A. Frequency=20Hz …20000Hz
Type= Low Pass Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-Fixed Q=0.1 …5.1
Type= Hi ghPass1/ Hi ghPass2 PM1 N/A. Frequency=20Hz …20000Hz
Type= Hi ghPass Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-Fixed Q=0.1 …5.1
Type= Band-Pass PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=4 …104
Type= Notch Filt PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=Fixed Q=4 …104
Type= All Pass 1 PM1 N/A. Frequency=20Hz …20000Hz
Type= All Pass 2 PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=Fixed Q=4 …104

MENU “Output 1/2/3/4” Output Channels Editing [Access by pushing the “1/2/3/4” button]
PM1 Encoder PM1 Enc. PM2 Enc. PM3 Enc.
[to navigate between menus] [to chose values for the parameters, no need to confirm the chosen values,
which are automatically loaded during the encoders use]
1. Output[x] [Name] Name
Name = [Name]
-> Name = _ (For Editing the Device's Name, refer to the Details on the“Utility Menus Use” Section)
2. Output[x] [Name] Routing
A=On B=Off C=Off D=Off
->InA: Level=0dB On PM1 N/A 0 dB On/Off
:
-30dB
->InB: Level=0dB on PM1 N/A 0 dB On/Off
:
-30dB
->InC: Level=0dB On PM1 N/A 0 dB On/Off
:
-30Db
->InD: Level=0dB On PM1 N/A 0 dB On/Off
:
-30Db
3. Output[x] [Name] Gain
Gain = + 0.0 dB
-> Gain = + 0.0 dB PM1 N/A -18 dB 0.1dB
::
+12dB 0.9dB
Step 1dB Step 0.1dB
4. Output[x] [Name] Delay
Delay = 0.000 ms
-> Delay = 0.000 ms PM1 N/A 000.0000mS 000.0000mS
[1 ms steps] [10.4 us steps]
340.0000mS 000.9984Ms
5. Output[x] [Name] Phase
Phase=Normal
-> Phase=Normal PM1 N/A. Phase= Normal/Invert
6. Output[x] [Name] RMS Cmp
Bypass=On
-> Bypass=On PM1 N/A. Byp=On/Off
PM1 N/A. Threshold=+20dBu …-10dBu
PM1 N/A. Ratio =2:1 …32:1 Knee=0% …100%
PM1N/A. Rel=1ms…10s Atk=0.1 …5000ms
PM1 N/A. Make-up=-12dB …+12dB
7. Output[x] [Name] Limiter
Bypass=On
-> Bypass=On PM1 N/A. Bypass= On/Off
PM1 N/A. Threshold=-10dBu …20 dBu
PM1 N/A. Rel=0.04sec …6.0sec Atk=0.1ms …900ms
8. Output[x] [Name] HPF
20.0 Hz Bypass
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC
ENTER
ESC

-> 20.0 Hz Bypass PM1 N/A [Freq.] 20Hz [Type/Slope] Bypass
: :
20kHz LR -48 dB /Oct
Slope=Bypass/ BW -6 dB/Oct / BW -12 dB/Oct / LR -12 dB/Oct / BS -12 dB/Oct / BW -18 dB/Oct / BW -24 dB/Oct / LR -24 dB/Oct / BS -24
dB/Oct / BW -36 dB/Oct / LR-36 dB/Oct / BW -48 dB/Oct / LR-48 dB/Oct /
9. Output[x] [Name] LPF
20.0 Hz Bypass
-> 20.0 Hz Bypass PM1 N/A [Freq.] 20Hz [Type/Slope] Bypass
: :
20kHz LR -48dB/Oct
Slope=Bypass/ BW -6 dB/Oct / BW -12 dB/Oct / LR -12 dB/Oct / BS -12 dB/Oct / BW -18 dB/Oct / BW -24 dB/Oct / LR -24 dB/Oct / BS -24
dB/Oct / BW -36 dB/Oct / LR-36 dB/Oct / BW -48 dB/Oct / LR-48 dB/Oct /
10. Output[x] [Name] EQ Byp
Bypass=On
-> Bypass=On PM1 N/A. Byp=On/Off
11. Output[x] [Name] PEQ-XX(00 to 11)
Byp=on Type=Peaking_Eq
-> Byp=on Type=Peaking_Eq PAR1 N/A. Byp=On/Off Type=Peaking_Eq/ Hi -Shelv
1/ Hi -Shelv 2/ Hi -Shelv Q/ Lo-Shelv 1/ Lo-Shelv 2/Lo-Shelv Q/ Low-Pass 1/ Low-Pass 2/Low-Pass Q/High-Pass1/ High-Pass2/High-Pass Q/Band-Pass/ Notch
Filt/All Pass 1/All Pass 2
Type=Peaking_Eq PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=0.4 …128
Type= Hi -Shelv 1/ Hi -Shelv 2 PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=Fixed
Type= Hi -Shelv Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=0.1 …5.1
Type= Lo-Shelv 1/ Lo-Shelv 2 PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=Fixed
Type= Lo-Shelv Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=0.1 …5.1
Type= Low-Pass 1/ Low-Pass 2 PM1 N/A. Frequency=20Hz …20000Hz
Type= Low-Pass Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-Fixed Q=0.1 …5.1
Type= High-Pass1/ High-Pass2 PM1 N/A. Frequency=20Hz …20000Hz
Type= High-Pass Q PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-Fixed Q=0.1 …5.1
Type= Band-Pass PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=-15dB …+15dB Q=4 …104
Type= Notch Filt PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=Fixed Q=4 …104
Type= All Pass 1 PM1 N/A. Frequency=20Hz …20000Hz
Type= All Pass 2 PM1 N/A. Frequency=20Hz …20000Hz
PM1 N/A. Gain=Fixed Q=4 …104
ENTER
ESC
ENTER
ESC
ENTER
ESC

Menu “UTILITY” [access by pushing the “UTILITY” button]
From the “Default Screen”, it is possible access the “UTILITY” menu pushing the “UTILITY” button
and the Sub-Menus pages can be selected just rotating clockwise and counter-clockwise the
“PM1” encoder.
Once selected the sub-menu page, using the “ENTER” button can be accessed the Sub-Menus
pages, again “scrollable” using the “PM1” encoder and accessible for the parameters' editing
pushing again the “ENTER' button.
Note: In each sub-menu choice, the current selected or running choice is what shown on the LCD
screen.
System Utilities Sub-menu –this sub-menu allows to access several operations related to the
LPP-440A Start Up and General Configuration:
UTILITY MENU:
From the “System Utilities Sub-menu”, pushing “ENTER” and then using the “PM1” encoder for
scrolling will give access to the following pages:
Input Source: the LPP-440A is equipped with 4 Analog Inputs (Balanced Female XLR) and 2
AES Digital Input (RCA connector).and noise generator
The “Input Source” page allows you to select the desired Input type:
By pressing ENTER on Input Source and then rotating the “PM2” or “PM3” encoders, it is
possible to select the Main Inputs for the LPP-440A, allowing the User to choose between
Analog , AES Digital Input or Noise Generator.
The selection can be confirmed by pressing the “ENTER” button.
The following screen shows that the Analog Input has been selected:
UTILITY MENU
-- System Utilities --
SYSTEM UTILITY
-- Input Source --
Input Source
Source = Analog input

UTILITY MENU:

Noise Generator: LPP-440A equips with 2 types of noise generator: White Noise and Pink
Noise.
By pressing ENTER and rotating the “PM2”encoder, it is possible to select between those 2
choice: “Pink”or “White”. By rotating the “PM3”encoder, it is possible to set the value of level
of white noise generator and pink noise generator, with whose range from 0dB to -40dB.
The following screen shows the selected pink noise with level of -20dB:
Delay Units: this page allows you to select the measurement unit to be used for the Delays:
Time (in milliseconds “ms”) or Distance (in meters “m”):
By pressing ENTER button and rotating the “PM2” or “PM3” encoder, it is possible to select the
measurement unit to be used for the delay, which will be confirmed by pushing the ENTER
button.
The following screen shows the selected delay measurement is Time (milliseconds)
Set Default Value: All setting for LPP-440A can be set to default value:
By pressing ENTER button, will show up the following screen of an interface to confirm to set
the default value:
By pressing ENTER button one more time, will show up the following screen:
SYSTEM UTILITY
-- Delay Units --
Delay Units
Unit : = Time (ms) *
SYSTEM UTILITY
-- Noise Generator --
Noise Generator
Type=Pink Lev=-20dB
SYSTEM UTILITY
-- Set Default Value --
Set Default Value
[Enter] to confirm

Wait around 3 sec for the processor set to the default value.
Firmware Version: this page allows you to confirm the Firmware Version running on the
LPP-440A:
The correct Firmware Version is “V3.1.9”
Program Utilities Sub-menu –this sub-menu allows you to access several options related to
the LPP-440A operating mode and to manage the presets stored and recallable within the Unit:
Recall a Program: this page allows the Loading of a preset program by pressing the “ENTER”
button. You can store up to 16 presets in the LPP-440A memory:
By pressing “ENTER”button and rotating the “PM1” encoders, it is possible to scroll through all
current available presets.
If NO USER PRESETS are stored yet, the screen will show the following:
If presets have previously been stored by the user, anyone of them can be recalled:
By using the “PM1” encoder it is possible to scroll through the stored presets. Once the
Recall a Program
01: Default
[ENTER] to Recall.
01: PRESET 1
PROGRAM UTILITY
-- Recall a Program --
UTILITY MENU
-- Program Utilities --
Set Default Value
Wait : loading default….
SYSTEM UTILITY
-- Firmware Version --

desired preset appears on the screen, select it by pressing the “ENTER” button and this will
force the LPP-440A to begin to load this selected preset and the following transitory screen will
appear:
Once loaded the LPP-440A will exit to the “Recall a Program” screen automatically and the
above screen will disappear:
Note: at any time it is possible to quit the recalling action by pressing the “ESC” button.
Loading New Program ......
01: PRESET 1
PROGRAM UTILITY
- Recall a Program -

Save a Program: this page allows you to store a new preset in the LPP-440A’s memory:
By pressing the ENTER button and rotating the “PM1” encoder, it is possible to scroll through
the previously saved presets or the available empty locations (identified by “Empty Program”).
If no user presets are stored, the “Save a Program” screen will show empty memory locations
for all 1-32 presets as shown in the example below for location 10:
When storing an edited configuration for the LPP-440A, select the location for a preset from
the 16 available by using the “PM1” encoders.
Once the desired location appears on the screen press “ENTER”button again to reach the “Set
Program Name” page.
In this page the User can set a Preset Name by using the “PM3” encoder to choose a character
and the “PM2” encoder to move between the available locations for the character’s positioning.
The following is an example of a screen while entering the preset name “Stage 1 2x2” in
location 10:
To store the Preset Name press the “ENTER” button again.
The above action will take you to the “Enter to Save” page showing the selected location for
the preset and the final edited name:
Pressing “ENTER” again, will store the preset in the selected location with the chosen name
and the following transitory screen will appear on the LCD:
Once the preset is stored, the above screen will disappear returning to the following screen:
Save a Program
10: Empty Memory
Set Program Name.
10: Stage 1 2x2
PROGRAM UTILITY
-- Save a Program --
[Enter] to Save
10: Stage 1 2x2 ?
PROGRAM UTILITY
-- Save a Program --
Saving to Memory.....
10: Stage 1 2x2

If during the Preset Storing process you want to overwrite an existing memory location select
this location in the “Save a Program” page, then press ENTER button and you will be asked if
you want to overwrite this preset with the following “[ENTER] to Overwrite” screen
displaying the currently stored preset and location:
If you wish to proceed press “ENTER” again and the LPP-440A will go ahead with the “Set
Program Name” page and the subsequent overwrite on completion of the previously
described storing process..
Note: at any time it is possible to quit the storing action by pressing the “ESC” button.
Delete a Program: this page allows you to delete a preset already stored in the LPP-440A
memory:
By pressing the ENTER button and rotating the “PM1” encoder, it is possible to scroll through
the previously saved presets and the available empty locations (identified by “Program
empty”).
If no user presets are stored, the “Delete a Program” screen will show empty memory
locations for all 1-16 presets as shown in the example below for location 10:
If Presets are available they will be shown in the “Delete a Program” page as follows:
By using the “PM1” encoder it is possible to select a preset to be deleted.
Pressing the “ENTER” button on a selected preset will bring up the “[Enter] to Delete.” page
showing the selected preset.
Delete a Program
10: Stage 1 2x2
[Enter] to Overwrite
10: Stage 1 2x2
PROGRAM UTILITY
-- Delete a Program --
Delete a Program
10: Program empty

For example, if we want to delete the preset 10, “Stage 1 2x2”, the screen will be the
following:
Confirming the deletion by pressing “ENTER” again, will force the LPP-440A to erase the
selected preset and the following transitory screen will appear:
Once the preset is deleted, the above screen will disappear returning to the following screen:
Note: At any time it is possible to quit the deleting action by pressing the “ESC” button.
Interface Utilities Sub-menu –this sub-menu allows you to define the remote control interface
[USB, RS485 or TCP/IP] to be used for controlling the LPP-440A:
From “Interface Utilities”, press “ENTER” button to access the Interface Setup.
Interface Setup: this screen allows you to choose the communication source for the LPP-
440A.
If select RS485, connect more than one unit under the RS485 mode. By using “PM3”encoder,
user can set the ID number from 1 to 32, to assign to the units connected, and confirm by
pressing “ENTER”button.
If select TCP/IP, select the DHCP status by using “PM3”encoder, with choice of “ON” or “OFF”.
Interface Setup
Source=USB
UTILITY MENU
-- Interface Utilities --
PROGRAM UTILITY
-- Delete a Program --
Erasing Xover Memory.....
10: Stage 1 2x2
[ENTER] to Delete.
10: Stage 1 2x2
Interface Setup
Source=RS485 ID=01

The following screen displaying the currently selected interface as TCP/IP:
When you select TCP/IP, but the DHCP is “OFF”, by pushing “ENTER”button again to set the IP
address of the unit.
By rotating “PM3”encoder, user can select the IP value, and by scrolling “PM2”to move
between available space, user can edit the IP value postion.
If select TCP/IP, and the DHCP is “ON”, press “ENTER”button one more time, the unit will
notify that the DHCP is already activated, shown as the following screen display:
IP address of the unit need to get from the router connected to the network the unit already in.
Security Sub-menu –this sub-menu allows the User to set the parameters shown, lock the
LPP-440A and set a Password therefore limiting the unit's functions and controls to those who
have only access to the appropriate Password.
Press “ENTER”button and then use the “PM1”encoder to scroll between options.
Show Parameter: Pressing “ENTER”button from the above menu will access the “Show
Parameter” Sub Menu
Press ENTER button again and use the PM2 or PM3 encoders to select between “be shown”or
“not be shown”options.
Choosing the “be shown” option means that once the unit is locked, you cannot access
parameter editing features, but they will be displayed on the LCD screen.
Choosing the “not be shown” option means that once the unit is locked, the parameters will
not be shown at all. With this option, when trying to access a parameter, the following
screen message will appear:
UTILITY MENU
-- Security Utilities --
SECURITY UTILITY
-- Show Parameter --
Parameter will
not be shown
Interface Setup
Source=TCP/IP DHCP=On
Set IP address
IP=192.168.000. 001
Interface Setup
DHCP actived !

Lock Unit: this sub-menu allows the user to lock the device so no parameters can be edited
or modified.
When the Unit is in an unlocked condition, all parameters will be available for editing. When
you select On, all parameters will be locked and are not available for editing.
When you select lock from the menu, the unit will be locked and the lock menu automatically
exited. The screen will revert to the “Default” showing the current XOVER configuration and
the preset selected and beside the preset’s name a “keylock” icon indicating that the LPP-440A
is locked.
Change Password: from the “Change Password” sub-menu:
Press “ENTER” to access the “Change Password” page:
Use the PM2 encoder to move between available locations, and the PM3 encoder to choose a
character. The current position of the cursor for the characters to be entered is shown by a
“blinking underscore”.
Input the original password “000000”for the LPP-440A, and press “ENTER”button, will access
to the “New Password”Page. Use the PM2 encoder to move between available locations, and
rotate the PM3 encoder to edit a 6-position new password.
The following screen is the example with the new password after edition is “111111”
Change Password
[_ ]
SECURITY UTILITY
-- Lock Unit --
Lock Unit
Lock = On
SECURITY UTILITY
-- Change Password --
Change Password
[ ]

Press the ENTER button again, will access the “Confirm password”page, use the “PM2”
encoder to move between available locations and rotate “PM3”encoder to choose a character,
input the new password edited just now.
The following screen is the example with typing in new password “111111”edited just now.
Press the ENTER button one more time, the new password will be set successfully.
Lock With Password: from the “Lock With Password” sub-menu:
There’s limitation to the editing function if the LPP-440A is locked with password. All functions for
this unit are banned, including MUTE A/B/C/D and MUTE 1/2/3/4 buttons.
Press “ENTER” to gain access to the “Enter Password” screen:
Use the “PM2”encoder to move between available locations, and rotate “PM3”encoder to select
characters. If the password of this LPP-440A never modified, input the default password “000000”,
the unit will be locked. In this case, default screen will show a “Key”icon, user cannot enter into
the sub-menu, unless he holds the password.
Confirm Password
[111111]
SECURITY UTILITY
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Menu “Input A/B/C/D” Input Channels Editing [access by pushing the “A/B/C/D”
buttons]
From the “Default Screen”, it is possible to access the “Input A/B/C/D” menu by pushing the “A”
or “B” or “C”or “D”button. Once the button is pressed, the related blue “EDIT” LED will turn ON.
The Sub-Menu pages can now be scrolled through by rotating clockwise and counter-clockwise the
“PM1” encoder.
For parameter editing it is necessary to press “ENTER”button and an arrow will appear on the left
of the screen “->”. Then use the “PM2” and “PM3” encoders for editing and setting the
parameter values. On some parameters that have three independent values, you will also need to
use the PM1 encoder, eg filter parameter settings.
Note: All options can be done using the “PM1”, “PM2”, and “PM3” encoders and the current shown
value of the selected option is AUTOMATICALLY loaded during the encoders' use and stored as the
current value once leaving the page.
Remark 1: Select parameters the user desire by using 3 encoders. Once the user leaves this
page, the above mentioned parameters would be saved to the LPP-440A systems automatically.
Remark 2: Exit this page by pressing “ESC”button.
Audio Signal Input (A/B/C/D)
Name page –from this screen, it is possible to assign input channel a name with 6 characters
For example, name the Input A as “In L”in the Name Page:
By pressing ENTER in the Name page, user can edit the name, and there will be an arrow, as the
following screen shows:
The first character will flash.
Select character from these 6 positions by rotating “PM2”encoder and choose the desired
characters by rotating “PM3”encoder. Once the new name is defined, for example, “In A”, confirm
this new name by pressing ENTER…A new name will display on the screen, after replaced the old
one.
The following screen is shown with the new name “In A”, by replacing the previous one “In L”
N.Gate page–from this page, it is possible to set the Input Channels Noise Gate. Noise gate can
be set as “ON”or “OFF”status. The following screen is the selected “ON”status:
In-A In L Name
Name = In L
In-A: In L Name
->Name = In L
In-A: In A Name
Name = In A

By pressing ENTER button in this page, an arrow “->”will show up on the left of the screen, and
enter into the setting interface 1 of the noise gate:
By using the “PM2”encoder, it is possible to set the noise gate as “ON”or “OFF”. By using the
“PM3”encoder, it is possible to select its attack threshold from -80dBu to -50dBu.
By rotating “PM1”encoder, user can enter into the setting interface 2 of the noise gate:
By using “PM2”encoder, user can set noise gate release time: from 10ms to 1000ms, and using
“PM3”encoder to set noise gate attack time: from 1ms to 1000ms.
Gain page –from this screen it is possible to set the Input Channels Level from -18dB to +12dB,
press “ENTER”button, an arrow will appear on the left of the screen “->” then use the “PM2” or
“PM3” to set parameters.
The value set on this screen will only affect the input level of the selected Channel A.
The following is an example screen for the “Gain” page that has set the Gain of Input Channel A to
+0.0dB:
Delay page –from this page it is possible to set the Input Channels Delay Time from
000.0000mS up to 480.9984mS, by steps of 1mS or 10.4uS.
To set the Delay time press ENTER, an arrow will appear on the left of the screen “->”. then use
the “PM2” encoder to set the Delay Time in steps of 1mS and the “PM3” for setting the “fine”
Delay Time in steps of 10.4 microseconds.
The following is an example screen for the “Delay” page where the Delay Time of Input Channel A
is set to 160.1872mS:
Phase page–from this page, it is possible to set input channels phase as “Normal”or “Invert”.
The following is an example screen of “Normal”Phase：
In-A In-A N.Gate
->Byp=On Thr=-80.0dBu
In-A Name N.Gate
Bypass = On
In-A In-A N.Gate
->Rel=10ms Atk=3ms
In-A In-A Gain
-> Gain = + 0.0dB
In-A In-A Delay
-> Delay = 160.1872mS

By pressing ENTER button in this page, an arrow will appear on the left of the screen “->”. then
use the “PM2” or “PM3” encoder for setting “Normal”or “Invert”Phase.
RMS Cmp page–from this page, it is possible to set RMS Compressor for input channels. RMS
Compressor can be set as “ON”or “OFF”status. The following is an example screen of “ON”status:
By pressing ENTER in this page, an arrow will appear on the left of the screen “->”. Then enter
into the setting interface 1 of RMS Compressor.
RMS compressor status can be set as “ON”or “OFF”by using “PM2”or “PM3”encoder.
By rotating “PM1”encoder, user can enter into setting interface 2 of RMS Compressor:
RMS Compressor attack threshold can be set with “PM2”or “PM3”encoder, with its range from
-10dBu to +20dBu.
By rotating “PM1”encoder one more time, user can enter setting interface 3 of RMS Compressor:
RMS Compressor ratio can be set by “PM2”encoder, with its range rom 2:1 ~ 32:1. RMS
Compressor knee can be set by “PM3”encoder, with its range from 0% ~ 100%.
By rotating “PM1”encoder once again, user can enter setting interface 4 of RMS Compressor:
RMS Compressor release time can be set by “PM2”encoder, with its selectable range from 0.1s ~
10s, and its attack time can be set by “PM3”encoder from 0.1ms ~ 5.0ms.
By rotating “PM1”encoder, user can enter setting interface 5 of RMS Compressor:
In-A In-A Phase
Phase = Normal
In-A: In-A RMS Cmp
Bypass = On
In-A In-A RMS Cmp
->Bypass = On
In-A In-A RMS Cmp
->Threshold = +20.0dBu
InputA: Name RMS Cmp
->Ratio =32:1 Knee =0%
In-A In-A RMS Cmp
->Rel =0.1sec Atk =0.1ms