Bell SMP QX Series User manual

11.
BEA SMP_QX_E
BELL SMP_QX Power Amplier
with Digital Audio Management
SAFETY INSTRUCTIONS
In order to avoid damage to hardware or electronic components, during unit use and/or maintenance, It is
necessary to follow the safety instructions.
Prior to installing the unit, please read this manual carefully. Follow all instructions and keep it for further
reference.
Manipulating or opening the unit may cause damage to people. -Place the unit in a location protected
from weather and in a good distance from water and moisture. -Don‘t expose the unit to sources of heat,
such as radiators, spotslamps, hot power ampliers etc.. -Avoid any kind of liquid entering inside the unit.
-Connect the unit to a power supply line able to support the units power consumption. The power supply line
must be in good operating conditions. The power supply line must have an efcient ground line. -Disconnect
the unit from a.c. power socket during thunderstorm (lightning) or when out of use for long periods of time.
Leave any servicing to qualied service personnel only. Servicing is required when the apparatus has been
damaged in any way, such as: -Defective connectors -Liquid has spilled inside the unit. -The unit has been
dropped or has been mechanically or electrically damaged or if the personal password of the user has been
forgotten.
No user-serviceable parts inside. For service, refer to an authorized maintenance centre.
BELL SMP_QX power ampliers comply with EMC Directive 89/336/CEE (Directive on approximation
of member nation‘s ordinance concerning the electromagnetic compatibility) and following modications
92/31/CEE and 93/68/CEE, as stated in EN 500821:1997, EN 55013:1990, EN 55020:1994 standards. These
units comply to Low Voltage Directive 73/23/EEC (Directive on approximation of member nation‘s ordi-
nance concerning electric equipment designed to be used within the specied voltage range), and following
modications 93/68/CEE, as stated in EN 60065:1998 standard. To avoid electric shock don‘t open this unit.
To prevent risks of re and/or electric shock, don‘t expose this unit to rain or moisture.
PACKAGING
This unit package has been submitted to ISTA 1A integrity tests. We suggest you check the unit immediately
after unpacking it. If any damage is found, immediately inform the dealer. Keep all unit packaging parts to
allow inspection. Our company is not liable for any damage that occurs during shipment.
SHIPMENT / TRANSPORT LOSS OR DAMAGE
Products are sold and shipped ex warehouse and the shipment is at charge and risk of the buyer. Possible
damages to the unit should be immediately notied to the forwarder.

21.
BEA SMP_QX_E
WARRANTY AND PRODUCT RETURN
BELL Audio Systems warrants all materials, workmanship and proper operation of this product for a period
of two years from the original date of purchase. If any defects are found in the materials or workmanship or
if the product fails to function properly during the applicable warranty period, the owner should inform the
dealer or the distributor, providing receipt or invoice of date of purchase and a detailed description of the
defect(s). This warranty does not extend to damage resulting from improper installation, misuse, neglect or
abuse. BELL will verify damage on returned units. If the unit has been properly used and warranty is still va-
lid, the unit will be replaced or repaired. our company is not responsible for any „direct damage“ or „indirect
damage“ caused by any defective product.
INSTALLATION
Product should be installed abd operated in a professional 19“ standard rack with adequate ventilation.
DISCLAIMER
BELL products have been expressly designed for audio application, with signals in audio range
(20Hz to 20kHz). Our company is not liable for damages caused by lack of maintenance, modication, im-
proper use or improper installation or by ignoring safety instructions.
BELL reserves the right to change technical specications at any time without notice.
Getting startedGetting started
- Make all necessary connections from ampliers / mixer by using high quality balanced audio cables.
- Switch on MAINS (rear panel).
- After switching on the unit, all XLR outputs will be connected via relais
(with short a short delay in order to avoid any harsh audio offset)
- After the switch on procedure, all last used paramaters values will be loaded and activated.
- If activated, the fade in function will be executed. (horizontal bargraph in LCD display)
- Next, the Main LCD Menu will be shown:
LEVEL A: -90.0dB P:01
LEVEL B: -90.0dB P:01
LEVEL A: -90.0dB P:01
LEVEL B: -90.0dB P:01

31.
BEA SMP_QX_E
PM1/NAV: navigates within the various menus (Utility, Edit)
PM1: sets any selected parameter value
sets LEVEL of channel A, when function Level Pot in System Utility is active
PM2: sets selected parameter values
sets LEVEL of channel B, when function Level Pot in System Utility is active
Enter button: conrms any edited parameter
jumps to next higher sub menu
ESC button: quits any parameter
jumps to next lower sub menu
Utility button: interrupts any edit process
opens the Utility menu
Edit button: interrupts the UTILITY function. Activates EDIT CH. A (pushed once only)
Pushed again, Edit button activates EDIT CH.B
Pushed again, Edit button activates EDIT CH.A
AMP Status LED: Blue off: Stereo Mode (=normal) // Blue on: Bridge Mode
Yellow on: DSC active
Red on: Protect Mode
Output LED meter Displays Amp Output Level in reference to maximum Output
5 green LEDs, -20...0dB
Limit LED: Yellow LED shows, that RMS Limiter or Clip Limiter is active.
CLIP LED: Red LED shows, Clipping detected at input (post ADC) or at Output
In PC software, Input- / and Output Clipping are shown separately
In case of Input-Clipping, Level of input signal must be reduced (Risk of digital distortion)
Output-Clipping may be caused by excessive internal signal processing, such as extreme
EQ settings. Avoid / correct such settings.
Operational features - Front -Operational features - Front -
!

41.
BEA SMP_QX_E
UTILITY MENU:
-- System Utilities --
UTILITY MENU:
-- System Utilities --
NAV
UTILITY MENU:
-- Program Utilities --
UTILITY MENU:
-- Program Utilities --
NAV
UTILITY MENU:
-- Interface Utilities --
UTILITY MENU:
-- Interface Utilities --
NAV
UTILITY MENU:
-- Security Utilities --
UTILITY MENU:
-- Security Utilities --
NAV
SYSTEM UTILITY:
-- System Setup --
SYSTEM UTILITY:
-- System Setup --
NAV
PROGRAM UTILITY:
-- Recall a Program --
PROGRAM UTILITY:
-- Recall a Program --
NAV
INTERFACE UTILITY:
-- Interface Setup --
INTERFACE UTILITY:
-- Interface Setup --
SECURITY UTILITY:
-- Show Parameter --
SECURITY UTILITY:
-- Show Parameter --
NAV
SYSTEM UTILITY:
-- Amp Mains Power--
SYSTEM UTILITY:
-- Amp Mains Power--
NAV
PROGRAM UTILITY:
-- Save a Program --
PROGRAM UTILITY:
-- Save a Program --
NAV
SECURITY UTILITY:
-- Lock Unit --
SECURITY UTILITY:
-- Lock Unit --
NAV
SYSTEM UTILITY:
--Amplier Type / Mode--
SYSTEM UTILITY:
--Amplier Type / Mode--
NAV
PROGRAM UTILITY:
-- Delete a Program --
PROGRAM UTILITY:
-- Delete a Program --
SECURITY UTILITY:
-- User Password --
SECURITY UTILITY:
-- User Password --
NAV
SYSTEM UTILITY:
--Set Default Values--
SYSTEM UTILITY:
--Set Default Values--
NAV
SECURITY UTILITY:
-- Enable Password --
SECURITY UTILITY:
-- Enable Password --
SYSTEM UTILITY:
-- Level Pot --
SYSTEM UTILITY:
-- Level Pot --
NAV
SYSTEM UTILITY:
-- Channel Link --
SYSTEM UTILITY:
-- Channel Link --
NAV
SYSTEM UTILITY:
-- Delay Units --
SYSTEM UTILITY:
-- Delay Units --
NAV
TREE: UTILITY MENU
-- UTILITY BUTTON --
TREE: UTILITY MENU
-- UTILITY BUTTON --
SYSTEM UTILITY:
-- Ramp Function --
SYSTEM UTILITY:
-- Ramp Function --
NAV
SYSTEM UTILITY:
-- Software Version --
SYSTEM UTILITY:
-- Software Version --
UTILITY MENU:
-- Noise Generator --
UTILITY MENU:
-- Noise Generator --
NAV
Noise Generator Utility:
-- Noise Level & Type --
Noise Generator Utility:
-- Noise Level & Type --
NAV
Noise Generator Utility:
-- Noise HPF Settings --
Noise Generator Utility:
-- Noise HPF Settings --

51.
BEA SMP_QX_E
Sub Menu: System UtilitiesSub Menu: System Utilities
System SetupSystem Setup
SYSTEM UTILITY:
-- System Setup --
SYSTEM UTILITY:
-- System Setup --
System Setup
Setup: BRIDGE MODE
System Setup
Setup: BRIDGE MODE
PM1 Enter
Default Setting of System Setup ist STEREO
This parameter will be stored with command ‚Save Program to PC and Save Program to Device‘
Enter
ESC (quit)
System Setup
Setup: STEREO *
System Setup
Setup: STEREO *
New Mode
(Enter) to conrm
New Mode
(Enter) to conrm
Enter
Please wait.....
Changing Mode
Please wait.....
Changing Mode
SYSTEM UTILITY:
-- Amp Mains Power --
SYSTEM UTILITY:
-- Amp Mains Power --
Amp Mains Power
Power : ON
Amp Mains Power
Power : ON
PM1 Enter
Default setting of AMP MAINS POWER is POWER = ON
This parameter will not be stored with command ‚Save Program to PC and Save Program to Device‘
Enter
ESC (quit)
Amp Mains Power
Power : Standby *
Amp Mains Power
Power : Standby *
System set to Standby
(Enter) to conrm
System set to Standby
(Enter) to conrm
Enter
Default Setting of OUTPUT ROUTINGDefault Setting of OUTPUT ROUTING
Setup: STEREO CHANNEL A: IN A CHANNEL B: IN B
Setup: BRIDGE CHANNEL A: IN A CHANNEL A: INVERSE
Amp Mains PowerAmp Mains Power
Amplier Type ModeAmplier Type Mode
SYSTEM UTILITY:
--Amplier Type/Mode--
SYSTEM UTILITY:
--Amplier Type/Mode--
SMP-3000QX compatible
Mode : 2 OHM
SMP-3000QX compatible
Mode : 2 OHM
ESC
Example shows Display for SMP-3000QX in 2-OHM Mode
Enter
ESC (quit)

61.
BEA SMP_QX_E
SYSTEM UTILITY:
-- Set Default Values --
SYSTEM UTILITY:
-- Set Default Values --
Set Default Values
(Enter) to conrm
Set Default Values
(Enter) to conrm
Enter ESC
Set Default Values = Parameter will reset to default setting (depending on System Setup).
The following parameters will not be reset to their Default Values :
Power, Password, Channel Link, Show Parameter, Delay Units, Level Pot, Ramp Function
Enter
ESC (quit)
Set Default Values
Please Wait .....
Set Default Values
Please Wait .....
SYSTEM UTILITY:
-- Level Pot --
SYSTEM UTILITY:
-- Level Pot --
Level Pot
Potentiometer : Enable
Level Pot
Potentiometer : Enable
PM1 Enter
When switching on the SMP_QX Power Amp, LEVEL POT is enabled (in function))
This parameter will be stored with command ‚Save Program to PC und Save Program to Device‘
When Level Pot is enabled, wheels ‚LEVEL A‘ and ‚LEVEL B‘ operate as Level Potentiometers.
Enter
ESC (quit)
Level Pot
Disable *
Level Pot
Disable *
Set Default ValuesSet Default Values
Level PotLevel Pot
SYSTEM UTIlity
-- Channel Link --
SYSTEM UTIlity
-- Channel Link --
Channel Link
Link : OFF
Channel Link
Link : OFF
Enter
ESC (quit)
Default setting of Channel Link is OFF
This parameter will be stored with command ‚Save Program to PC und Save Program to Device‘
In the given example, Channel Link was changed to ‚ON‘, using the PM1 encoder.
Alternative settings of Channel Link: ON / OFF
Channel-Link function may only be used, when System Setup is set to ‚STEREO‘
When Channel Link is changed from OFF to ON, all Channel A parameters will be copied to Channel B.
(This includes Status Locked / Unlocked Preset)
Parameters ‚Name‘ and ‚Input Source‘ Routing will not be copied.
When Input Edit Button is pushed in Channel Link Mode, Display will show, that Channels A and B
are linked. In this case, any change of parameter for channel A will also be true for channel B.
In Channel Link Mode, display will read: IN : A + B instead of In : A und In : B
EQ-1 will be shown als EQ-1(s).
Channel Link
Wait: channel linking...
Channel Link
Wait: channel linking...
Channel LinkChannel Link

71.
BEA SMP_QX_E
SYSTEM UTIlity
-- Channel Link --
SYSTEM UTIlity
-- Channel Link --
Channel Link
Link : OFF
Channel Link
Link : OFF
PM1 Enter
Enter
ESC (quit)
Default setting of Channel Link ist OFF.
This parameter will be stored with command ‚Save Program to PC und Save Program to Device‘
In the given example, Channel Link was changed to ‚ON‘, using the PM1 encoder.
Alternative settings of Channel Link: ON / OFF
Channel-Link function may only be used, when System Setup is set to ‚STEREO‘
When Channel Link is changed from OFF to ON, all Channel A parameters will be copied to Channel B.
(This includes the Status Locked / Unlocked Preset)
Parameters ‚Name‘ and ‚Input Source‘ Routing will not be copied.
When Input Edit Button is pushed in Channel Link Mode, Display will show, that Channels A and B
are linked. Any change of parameter for channel A will also be true for channel B.
In Channel Link Mode, display will read: IN : A + B instead of In : A and In : B
EQ-1 will be shown als EQ-1(s).
Channel Link
Link : ON *
Channel Link
Link : ON *
Channel Link
Wait: channel linking...
Channel Link
Wait: channel linking...
Channel Link
Wait: channel unlinking...
Channel Link
Wait: channel unlinking...
SYSTEM UTILITY:
-- Delay Units --
SYSTEM UTILITY:
-- Delay Units --
Delay Units
Unit : Distance (m)
Delay Units
Unit : Distance (m)
PM1 Enter
Enter
ESC (quit)
Delay Units
Unit : Time (ms) *
Delay Units
Unit : Time (ms) *
Default setting for Delay Units is Distance (m).
This parameter will not be stored with command ‚Save Program to PC und Save Program to Device‘
In the given example, Delay Units are changed to Time (ms), using the PM1 encoder.
Possible settings of Delay Units: Distance (m) or Time (ms)
Channel LinkChannel Link
Delay UnitsDelay Units

81.
BEA SMP_QX_E
SYSTEM UTILITY:
-- Ramp Function --
SYSTEM UTILITY:
-- Ramp Function --
Ramp Function
Ramp : Disable
Ramp Function
Ramp : Disable
PM1 Enter
Enter
ESC (quit)
Default setting of RAMP Function is Disable.
This parameter will not be stored with command ‚Save Program to PC und Save Program to Device‘
In the given example, Ramp Function was changed via PM1 encoder from Disable to Enable.
Possible settings for Ramp Function: Disable / Enable.
The ramp function will help to avoid any harsh audible offset whenever any extreme change of
parameter is executed in one single step via the PC software. (Such abrupt changes are not possible
when using the unit‘s encoder on the front panel)
Example: EQ Gain is changed from +15dB to -15dB (extreme setting...)
The procedure string of the ramp function is:
1) fade out of input signal
2) modication of parameter value
3) fade in of the input signal
Due to the fade-in / fade-out process, the ramp function should likely not be used during life performance.
Ramp Function
Ramp : Enable *
Ramp Function
Ramp : Enable *
Software Version
Version: V1.20
Software Version
Version: V1.20
Enter
ESC (quit)
Shows the loaded software version
Ramp FunctionRamp Function
!
Software VersionSoftware Version

91.
BEA SMP_QX_E
Sub Menu: Program UtilitiesSub Menu: Program Utilities
PROGRAM UTILITY:
-- Recall a Program --
PROGRAM UTILITY:
-- Recall a Program --
Recall a Program
01: ARENA VIENNA
Recall a Program
01: ARENA VIENNA
Seleting ‚Recall a Program‘, the SMP_QX will suggest the previously used program.
In the given example, it is program Nr.01
Should you want to use this program, conrm by ‚Enter‘
Enter
ESC (quit)
Enter
(Enter) to Recall
01: ARENA VIENNA
(Enter) to Recall
01: ARENA VIENNA
Enter
Loading New Program...
01: ARENA VIENNA
Loading New Program...
01: ARENA VIENNA
PROGRAM UTILITY:
-- Recall a Program --
PROGRAM UTILITY:
-- Recall a Program --
Recall a Program
01: ARENA VIENNA
Recall a Program
01: ARENA VIENNA
Selecting ‚Recall a Program‘, the SMP_QX will suggest to use the previously used program.
In the given example, this is program Nr.01. Should you want to use a different program, select this via
PM1 encoder.
In the given example, programm Nr. 12 (Theater Hamburg) was selected.
Selecting a previously stored program will load all of its parameters.
Any previously active parameters will be replaced by those of the last loaded program.
Enter
ESC (quit)
PM1
Recall a Program
12: Theater Hamburg
Recall a Program
12: Theater Hamburg
Enter
Loading New Program...
12: Theater Hamburg
Loading New Program...
12: Theater Hamburg
(Enter) to Recall
12: Theater Hamburg
(Enter) to Recall
12: Theater Hamburg
Enter
PROGRAM UTILITY:
-- Save a Program --
PROGRAM UTILITY:
-- Save a Program --
Save a Program
01: ARENA VIENNA
Save a Program
01: ARENA VIENNA
When selecting ‚Save a Program‘, the SMP_QX will suggest to use the previously used program
name and number.
In the given example, it is program Nr.01. Should you want to use this program, conrm by Enter.
In order to change the program name, use PM1 (cursor) and PM2 (sign)
In the given example, the new name is Open Air Cologne
Enter
ESC (quit)
Enter
(Enter) to Overwrite
01: ARENA VIENNA
(Enter) to Overwrite
01: ARENA VIENNA
Enter
Set Program Name
01: Open Air Cologne
Set Program Name
01: Open Air Cologne
(Enter) to Save
01: Open Air Cologne
(Enter) to Save
01: Open Air Cologne
Enter
Saving to Memory.....
01: Open Air Cologne
Saving to Memory.....
01: Open Air Cologne
Enter
Recall a ProgramRecall a Program
Recall a ProgramRecall a Program
Save a ProgramSave a Program

101.
BEA SMP_QX_E
PROGRAM UTILITY:
-- Save a Program --
PROGRAM UTILITY:
-- Save a Program --
Save a Program
01: ARENA VIENNA
Save a Program
01: ARENA VIENNA
Selecting ‚Save a Program‘, the SMP_QX will suggest the previously used program name and num-
ber. In the given example, it is program Nr. 01 (Arena Vienna)
To change the program number, use PM1 encoder. In the given example, number 14 was selected.
The original name (King Albert Hall) is shown. The program will be conrmed by Enter..
In order to change the program name, use PM1 (cursor) and PM2 (sign)
In the given example, the new name is Open Air Cologne
All parameters except: EQ Bypass, Power, Noise Generator Parameter (all), Delay Units, Ramp
Function, Noise Generator ON / OFF will be stored. SMP_QX amps comes with 53 storage banks.
Enter
ESC (quit)
Save a Program
14: King Albert Hall
Save a Program
14: King Albert Hall
Enter
Set Progam Name
14: King Albert Hall
Set Progam Name
14: King Albert Hall
Enter
(Enter) to Save
14: King Albert Hall
(Enter) to Save
14: King Albert Hall
Enter
PM1
(Enter) to Overwrite
14: King Albert Hall
(Enter) to Overwrite
14: King Albert Hall
Saving to Memory.....
14: King Albert Hall
Saving to Memory.....
14: King Albert Hall
Enter
PROGRAM UTILITY:
-- Delete a Program --
PROGRAM UTILITY:
-- Delete a Program --
Delete a Program
01: ARENA VIENNA
Delete a Program
01: ARENA VIENNA
Selecting ‚Delete a Program‘, the SMP_QX will suggest to delete the rst program in list.
In the given example, it is program Nr. 01 (Arena Vienna)
In order to delete a different program, select it by PM1 encoder. In the given example, programm Nr.14 was
selected to be deleted. The original name (King Albert Hall) is shown in the Display. The command
‚Delete‘ is executed by Enter.
A program may not be deleted while in use.
Enter
ESC (quit)
Delete a Program
14: King Albert Hall
Delete a Program
14: King Albert Hall
Enter
Deleting Program.....
14: King Albert Hall
Deleting Program.....
14: King Albert Hall
Enter
PM1
(Enter) to Delete
14: King Albert Hall
(Enter) to Delete
14: King Albert Hall
Save a ProgramSave a Program
!
Delete a ProgramDelete a Program
!

111.
BEA SMP_QX_E
Sub Menu: Interface UtilitiesSub Menu: Interface Utilities
Interface UTILITY:
-- Interface Setup --
Interface UTILITY:
-- Interface Setup --
Interface Setup
Remote ID Num : 02
Interface Setup
Remote ID Num : 02
Enter
ESC (quit)
PM1
Interface Setup
Remote ID Num : 01 *
Interface Setup
Remote ID Num : 01 *
Enter
PM1 sets an individual ID number for each SMP_QX amplier.
When a quantity of SMP_QX amps is working in the same system (interfaced via RS485) each one
must be given a different ID number in order to avoid any data crash.
In the given example, ID number for RS485 ID was changed from 02 to 01, using the
PM1 encoder.
A total of up to 32 units SMP_QX power ampliers may be linked and controlled by PC (software)
via RS485 Interface.
Interface UtilitiesInterface Utilities
!

121.
BEA SMP_QX_E
Sub Menu: Security UtilitiesSub Menu: Security Utilities
Security UTILITY:
-- Show Parameter --
Security UTILITY:
-- Show Parameter --
Parameter will
be shown
Parameter will
be shown
Enter
ESC (quit)
PM1
Parameter will
not be shown *
Parameter will
not be shown *
Enter
The default setting for ‚SHOW PARAMETER‘ is: ‚will be shown‘
This parameter will be stored with command ‚Save Program to PC und Save Program to Device‘
In the given example ‚Show Parameter‘ was changed to ‚will not be shown‘ via PM1.
Possible modes: ‚will be shown‘ or ‚will not be shown‘
1) When ‚parameter will be shown‘ is active and Utility Procedures ‚Lock Unit‘ and ‚Enable Password‘ are
also active, all parameters und values will be shown in the Menus Edit and Utility menus.
2) When ‚parameter will not be shown‘ is active, and when at the same time Utility Procedures ‚Lock Unit‘
and ‚Enable Password‘, are active, no parameters will be shown in the menus Edit and Utility.
If 2) is true, and if Lock Unit or Enable Password are active, all operating features except the Utility button
will be deactivated. Pushing the Utility button will open the ‚Lock Unit‘ menu. or ‚Enable Password‘ de-
pending on which one of these procedures has been activated.
Security UTILITY:
-- Lock Unit --
Security UTILITY:
-- Lock Unit --
Lock Unit
Lock : Off
Lock Unit
Lock : Off
Enter
ESC (quit)
PM1
Lock Unit
Lock : On *
Lock Unit
Lock : On *
Enter
This parameter will be stored with command ‚Save Program to PC und Save Program to Device‘
The default setting for ‚Lock Unit‘ is ‚Off‘ (= unlocked)
In the given example the status of ‚Lock Unit‘ has been changed from ‚Off‘ to ‚On‘ via PM1 encoder.
Possible selection: Lock Unit: OFF / ON
Show ParameterShow Parameter
Lock UnitLock Unit

131.
BEA SMP_QX_E
Your personal, 6-digit password is the key to the SMP_QX amplier.
Should the password be forgotten, the unit may only be unlocked by BELL
This parameter will not be stored with command ‚Save Program to PC und Save Program to Device‘
Default setting for USER PASSWORD is ‚000000‘
To call up User Password, make the following entries:
Enter OLD password
(a wrong password will interrupt this routine)
Enter NEW password
Conrm NEW password
(entry of a wrong password will interrupt this routine)
In the given example, the old password is ‚000000‘. It is being changed to ‚ABC123‘.
PM1 and PM2 move the cursor and select characters and numbers.
After conrmation via enter, the new passwort can be written via PM1 and PM2.
In order to activate ‚Enable Password‘ you must enter the current password
Security UTILITY:
-- User Password --
Security UTILITY:
-- User Password --
User Password
(- - - - - - )
User Password
(- - - - - - )
Enter
ESC (quit)
PM2
User Password
(000000)
User Password
(000000)
Enter
PM1
New Password
(ABC123)
New Password
(ABC123)
Conrm Password
(ABC123)
Conrm Password
(ABC123)
Enter Enter
Enable PasswordEnable Password
Enter Password
(- - - - - - )
Enter Password
(- - - - - - )
Enter
ESC (quit)
Enable Password
Password : Disable
Enable Password
Password : Disable
PM1
Enter
Security UTILITY:
-- Enable Password --
Security UTILITY:
-- Enable Password --
Enable Password
Password : Enable *
Enable Password
Password : Enable *
This parameter will not be stored with command ‚Save Program to PC und Save Program to Device‘
Default setting for ‚Enable Password‘ ist ‚Disable‘. In order to change the status to ‚Enable Password‘ the
User-Password must be entered. In the given example ‚Enable Password‘ was changed from ‚Disable‘ to
‚Enable‘ (via PM1 Encoder).
1) If ‚will be shown‘ has been activated in the Show Parameter Menu, and if ‚enable password‘ has been set
to ‚Disable‘ , all parameters and their values will be shown in the menus ‚Edit‘ and ‚Utility‘.
2) If ‚will not be shown‘ has been activated in the Show Parameter Menu, and if ‚Enable Password‘ has been
set to ‚Disable‘ , the parameters and their values will not be shown in the menus ‚Edit‘ and ‚Utility‘.
If 2) is true, and if Enable Password‘ is active, all operating elements except for the Utility button are locked.
Die Utility button will automatically open the ‚Enable Password‘ menu.
Enter
User PasswordUser Password
!
Personal PasswordPersonal Password
!

141.
BEA SMP_QX_E
Sub Menu: Noise Generator UtilitiesSub Menu: Noise Generator Utilities
Noise Level & TypeNoise Level & Type
Noise Generator Utility:
-- Noise Level & Type --
Noise Generator Utility:
-- Noise Level & Type --
Noise Level & Type
Level=-40dBu Type=Pink
Noise Level & Type
Level=-40dBu Type=Pink
Enter
ESC (quit)
PM1 Enter
These parameters will not be stored with command ‚Save Program to PC und Save Program to Device‘
Default setting for ‚Noise Level & Type‘ is: -40dBu / Pink
In the above example ‚Level‘ was changed via PM1 from -40dBu to -10dBu. ‚Type‘ was changed
via PM2 from Pink (Noise) to White (Noise).
Level Range: -40dBu .... + 6dBu
Noise Types: White, Pink
The noise generator may be activated separately for channel A and channel B.
PM2
Noise Level & Type
Level=-10dBu Type=White *
Noise Level & Type
Level=-10dBu Type=White *
Noise Generator Utility:
-- Noise HPF Settings --
Noise Generator Utility:
-- Noise HPF Settings --
Noise HPF Settings
Freq=20Hz Slope=Bw/-6
Noise HPF Settings
Freq=20Hz Slope=Bw/-6
Enter
ESC (quit)
PM1 Enter
These parameters will not be stored with command ‚Save Program to PC und Save Program to Device‘
Default setting of ‚Frequency & Slope is: 20Hz / Bw / -6dBu
In the given example ‚Frequency‘ was changed via PM1 from 20Hz to 90Hz.
‚Slope‘was changed via PM2 from Bw / -6 to Bw / -24.
Frequency Range HPF setting: from 15Hz.... 150Hz
HPF Slope: -6...-24 (Bw)
The High Pass Filter (HPF) protects loudspeaker systems from extreme signal
offsets in sublow frequencies.
PM2
Noise HPF Settings
Freq=90Hz Slope=Bw/-24 *
Noise HPF Settings
Freq=90Hz Slope=Bw/-24 *
Noise Level & TypeNoise Level & Type
Noise HPF SettingsNoise HPF Settings
!

151.
BEA SMP_QX_E
STARTING SCREEN
-- EDIT Channel A & Channel B --
STARTING SCREEN
-- EDIT Channel A & Channel B --
NAMENAME
NAV
SOURCESOURCE
NAV
LEVELLEVEL
NAV
RMS LIMITERRMS LIMITER
NAV
DELAYDELAY
NAV
POLARITYPOLARITY
NAV
HPFHPF
NAV
LPFLPF
NAV
EQ BYPASSEQ BYPASS
NAV
EQ 1 - 8EQ 1 - 8
NOISE ON / OFFNOISE ON / OFF
NAV
GAINGAIN
NAV
PEAK LIMITERPEAK LIMITER
NAV
DSCDSC
NAV

161.
BEA SMP_QX_E
EDIT PARAMETERS CHANNEL A & CHANNEL BEDIT PARAMETERS CHANNEL A & CHANNEL B
OUT: A Low-A Name
Name = Low-A
OUT: A Low-A Name
Name = Low-A
PM2 Enter
Enter
ESC (quit)
OUT: A Low-A Name
aName = Low-A
OUT: A Low-A Name
aName = Low-A
PM1
The default setting for Name is ‚CH.A‘ .
In the given example, Name was changed from ‚Low-A‘ to ‚Mid-A‘ geändert. Encoder: PM1 and PM2.
(PM1 moves the cursor. PM2 selects the sign)
Pink Noise to CH.A
Pink Noise = Off
Pink Noise to CH.A
Pink Noise = Off
ESC
Enter
ESC (quit)
PM1
Default setting of Noise Generator ist ‚off‘.
In the given example, the noise generator (CH A) was activated with the default setting in the Utility Menu.
When the noise generator is active, it will automatically
cut any incoming audiosignal on the same channel.
Pink Noise to CH.A
aPink Noise = OFF
Pink Noise to CH.A
aPink Noise = OFF
Pink Noise to CH.A
aPink Noise = ON
Pink Noise to CH.A
aPink Noise = ON
In A Low-A Gain
Gain = -5.0 dB
In A Low-A Gain
Gain = -5.0 dB
ESC
Enter
ESC (quit)
PM1
The default setting for GAIN ist 0.0dB .
In the given example, GAIN was changed from -5,0dB to 0,0dB using the PM1 decoder.
GAIN (Range): -12dB...+3dB
Position of GAIN = pre EQ
Any increase of GAIN will also cause a proportionate level increase of amplication noise.
In A Low-A Gain
aGain = -5.0 dB
In A Low-A Gain
aGain = -5.0 dB
In A Low-A Gain
aGain = 0.0 dB
In A Low-A Gain
aGain = 0.0 dB
OUT: A Low-A Name
aName = Mid-A
OUT: A Low-A Name
aName = Mid-A
Pink Noise to Channel APink Noise to Channel A
GainGain
!
NameName

171.
BEA SMP_QX_E
OUT: A Low-A Source
Source = InA
OUT: A Low-A Source
Source = InA
PM1 ESC
Enter
ESC (quit)
OUT: A Low-A Source
aSource = InA
OUT: A Low-A Source
aSource = InA
OUT: A Low-A Source
aSource = InB
OUT: A Low-A Source
aSource = InB
Default setting for SOURCE is ‚InA‘ .
In the given example, Source for CHANNEL A was changed from InA to InB - using the PM1 encoder.
CHANNEL A was linked with Input A
Possible Source Routing for Channel A and Channel B: InA, InB, InA+InB
If Source Routing InA + InB has been selected, the summing Output Level is 0dB (not +6dB)
Default settings for SOURCE (Signalquelle)Default settings for SOURCE (Signalquelle)
Setup: STEREO CHANNEL A: IN A CHANNEL B: IN B
Setup: BRIDGE CHANNEL A: IN A CHANNEL B: IN A (INVERSE)
SourceSource
!
Out: A Low-A Level
Level = 0.0dB
Out: A Low-A Level
Level = 0.0dB
PM1 ESC
Default setting for LEVEL is 0.0dB. Range = -90dB....0dB.
In the given example, LEVEL of CHANNEL A was changed from 0.0dB to -6dB, using PM1.
LEVEL position is: post EQ - pre DSC - pre Limiter.
Enter
ESC (quit)
Out: A Low-A Level
aLevel = 0.0dB
Out: A Low-A Level
aLevel = 0.0dB
Out: A Low-A Level
aLevel = -6.0dB
Out: A Low-A Level
aLevel = -6.0dB
LevelLevel

181.
BEA SMP_QX_E
Out: A Low-A Level
Level = 0.0dB
Out: A Low-A Level
Level = 0.0dB
PM1 ESC
Default setting for LEVEL is 0.0dB. Range = -90dB....0dB.
In the given example, LEVEL of CHANNEL A was changed from 0.0dB to -6dB, using PM1.
LEVEL position is: post EQ - pre DSC - pre Limiter.
Enter
ESC (quit)
Out: A Low-A Limiter
Thr= OFF Rto=99:1
Out: A Low-A Limiter
Thr= OFF Rto=99:1
PM2 ESC
Default setting for the RMS Limiter is: Threshold = OFF / Ratio = 100:1
In the given example, Threshold of CHANNEL A was changed from OFF to 2.7dBu (via PM1)
Ratio was changed from 99:1 to 2:1 (via PM2)
Theshold Range is: -18dBu....2.7dBu, OFF
Ratio Range is: 2:1....100:1
Threshold
Sets the level in dBu above which the limiter begins to attenuate the input signal.
As soon as the limiter is ‚active‘, this will be indicated by the yellow LED.
Ratio: (Example) : Threshold Level = 0dBu , Input Level = 4dBu, Ratio = 2:1
In this example, the calculation is: ((Input Level - Threshold Level) : Ratio) + Threshold Level
= ((+ 4dBu - 0.0dBu) : 2) + 0.0dBu = 2dBu + 0.0dBu = +2dBu
This means, that at an input level of +4dBu, and output level of +2dBu is to be expected.
The performance of the RMS limiter is best shown in the PC software.
Enter
ESC (quit)
PM1
Out: A Low-A Level
aLevel = 0.0dB
Out: A Low-A Level
aLevel = 0.0dB
Out: A Low-A Level
aLevel = -6.0dB
Out: A Low-A Level
aLevel = -6.0dB
Out: A Low-A Limiter
a Thr= OFF Rto=99:1
Out: A Low-A Limiter
a Thr= OFF Rto=99:1
Out: A Low-A Limiter
a Thr= +2.7dBu Rto=2:1
Out: A Low-A Limiter
a Thr= +2.7dBu Rto=2:1
Out: A Low-A Limiter
Att= 60ms Rel= 2.5s
Out: A Low-A Limiter
Att= 60ms Rel= 2.5s
PM2 ESC
The default value of the RMS Limiter is: Attack = 60ms / Release = 2.5s
In the given example, attack time of CHANNEL A was changed from 60ms to 10ms.
Release Time was changed from 2.5s in 5s. Command via PM1 and PM2.
Attack Time Range: 5ms ....200ms
Release Time Range: 0.1s ....5.0s
Attack Time
Attack is dened as the time it takes the limiter to attenuate the signal gain by a dened value.
Release Time. Normally, this value will be dened at 20dB.
Enter
ESC (quit)
PM1
Out: A Low-A Limiter
a Att= 60ms Rel= 2.5s
Out: A Low-A Limiter
a Att= 60ms Rel= 2.5s
Out: A Low-A Limiter
a Att= 10ms Rel= 5s
Out: A Low-A Limiter
a Att= 10ms Rel= 5s
LevelLevel
RMS LimiterRMS Limiter
!
RMS LimiterRMS Limiter

191.
BEA SMP_QX_E
Out: A Low-A P.Limit
Default Values
Out: A Low-A P.Limit
Default Values
ESC
The Peak - Limiter works against a xed threshold-level, attack- and release time.
These levels may not be manipulated by the user.
The peak limiter will protect the power amplier from distortion (Clipping)
The threshold level of the peak limiters is set at 2,7dBu in relation to the peak signal level.
The maximum output level of the power amp will be reached at an input level of 2,7dBu (rms).
Enter
ESC (quit)
Enter Password
( ______)
Enter Password
( ______)
Release time
is dened as the time it takes the limiter to increase the signal gain by a dened value.
Normally, this value will be dened at 20dB.
Since the SMP_QX Power Ampliers feature 2 separate limiters (RMS Limiter plus Peak Limiter),
there will be an interference (in dynamics), when both limiters work on the same threshold level.
Such extreme settings should only be chosen to fully avoid any peaks from exceeding a certain thres
hold level.
Since the RMS Limiter be fully congured by the user, it may serve to determine maximum
output levels of sound systems.
Examples:
Protection of loudspeaker systems
To keep within certain sound pressure levels in discotheques etc.
!
Peak LimiterPeak Limiter
OUT: A Low-A Delay
Delay = 0.000m
OUT: A Low-A Delay
Delay = 0.000m
Out: A Low-A Delay
aDelay = 0.000m
Out: A Low-A Delay
aDelay = 0.000m
PM1
Out: A Low-A Delay
aDelay = 24.330m
Out: A Low-A Delay
aDelay = 24.330m
ESC
Default value of delay is 0.000m.
In the given example, Delay was changed to 24.330m, using PM1 and PM2.
PM1 will alter the value in large steps. PM2 will alter the value in small steps.
Delay units may be read (set) to distance (m) or time (ms).
Delay range is: 0....288meters.
Enter
ESC (quit)
PM2
DelayDelay

201.
BEA SMP_QX_E
Out:A Low-A Polarity
Polarity = Normal
Out:A Low-A Polarity
Polarity = Normal
PM1
The default setting of polarity is normal (in phase)
In the given example, polarity was changed to INVERT (out of Phase).
Enter
ESC (quit)
Out:A Low-A HPF
20.0 Hz No Cut-Off
Out:A Low-A HPF
20.0 Hz No Cut-Off
PM1 ESC
Default setting of HPF (High Pass Filter) is: cut off frequency: 20.0Hz
Slope: no cut-off (not active).
In the given example, HPF Cut off frequency is changed to 50.0Hz, and HPF Slope is changed
to butterworth 6dB.
Enter
ESC (quit)
Out:A Low-A HPF
a20.0 Hz No Cut-Off
Out:A Low-A HPF
a20.0 Hz No Cut-Off
Out:A Low-A HPF
a50.0 Hz Butwrth 6dB
Out:A Low-A HPF
a50.0 Hz Butwrth 6dB
PM2
The default setting of DSC (DYNAMIC SIGNAL CONTROL) is Off (not active)
In the given example, DSC was changed to ‚On‘ (active), using PM1.
DSC Processor: will boost the overall dynamics of sound
DSC means extended dynamics, fundametal dry subs and transparent, crystal clear treble.
Out:A Low-A Polarity
aPolarity = Normal
Out:A Low-A Polarity
aPolarity = Normal
Out:A Low-A Polarity
aPolarity = Invert
Out:A Low-A Polarity
aPolarity = Invert
Out:A Low-A DSC
DSC = Off
Out:A Low-A DSC
DSC = Off
Enter
ESC (quit)
Out:A Low-A DSC
aDSC = Off
Out:A Low-A DSC
aDSC = Off
PolarityPolarity
DSCDSC
HPFHPF
LPFLPF
Out:A Low-A LPF
16.0 kHz No Cut-Off
Out:A Low-A LPF
16.0 kHz No Cut-Off
Default setting for LPF (Low Pass Filter) is: Cut off frequency: 16.0kHz
Slope: No Cut-Off (not active).
In the given example, LPF Cut off frequency is changed to 10.0kHz , and HPF Slope is
changed to Butterworth 6dB.
Low Pass lter cutoff frequency Range: 20Hz-16KHz.
LPF slopes: Butterworth (1st, 2nd, 3rd, 4th oder)
Linkwitz Riley (2nd and 4th. order)
Bessel (2nd and 4th. order)
Enter
ESC (quit)
Out:A Low-A LPF
a16.0 kHz No Cut-Off
Out:A Low-A LPF
a16.0 kHz No Cut-Off