User Manual
VSS 18
SD 7 SD 8
2
1. Introduction
Thank you for choosing a K.M.E. product!
VERSIO has been consequently developed to portable requirements. With these compact
and ergonomic loudspeaker systems you will be able to master your reinforcement
situations in a very flexible manner (main-PA, monitoring, fill-system).
In this User Manual you will find some hints and warning notes for your new product with
which a save use of the VSS 18 is allowed. Please read this instructions before you switch
on the VSS 18 for the first time, to get in touch with particular features of your new product.
If you have questions about this product please contact the K.M.E. support.
Within our extensive production processes we only use exclusive materials and
components of best quality. Share with us the enthusiasm for good sound. The K.M.E.
team wishes you fun and success with your new PA-system!
2. Contents
1. Introduction
2. Contents ………………..….............................................................. 2
3. The digital system unit VSS 18
4. The delivery status ….……………………………………………........ 3
5. The connection panel ..........……...................................….........…. 4
6. The control panel ............…….......................................…............. 5
7. Navigation structure on the hardware unit ....…………….……….... 6-8
8. Operation ..................................................................….................. 9-11
9. Choose your factory preset - play! ...........……........….................... 12
10. The most important menu functions - 10.1 powering up ........…... 12
10.2 selecting presets …… 12
10.3 switching input of
channel A between
analog / digital / digital X .. 13
10.4 muting PA ................. 13
10.5 entering password .... 14
10.6 locking your VSS 18 15
11. Specifications VSS 18 .................................................................. 16
12. Preset overview - 12.1 factory presets ..............….………….…… 17-20
12.2 user presets ..............……………............. 21-22
13. Specifications SD 7 and SD 8 ...............……................................ 23
14. PA-systems active - 14.1 Set-up PA systems .............................. 24
14.2 Connection shemes ............................. 25-29
14.3 System versatility ................................. 30-31
15. Notes ............................................................................................ 32
16. EC-declaration of conformity ........................................................ 35
17. Disposal of your old appliance ..................................................... 36
3
3. The digital system unit VSS 18
The fully digital system unit VSS 18 with integrated 18“ subwoofer has been
consequently developed to portable requirements. With a powerful bass base and very
compact dimensions as well as the lightweight of 34 kg, the VSS 18 is also the core and
control center within the self-powered PA-systems SD 7, SD 8 and also in directional
radiating active bass arrays.
Inside work a digital 24 Bit signal processor and three powerful class D amplifiers with an
unsophisticated, crystal-clear sound quality (without conversion losses due to full digital
preamping). The analogue input signal is digitalized directly inside the input amplifier
using an intelligent 24 Bit AD-converter and remains consequently digital to the class D
amplifiers` output. The audio-DSP enables an optimal processing and controlling of the
audio signal through adjustable parameters like gain, digital cross-over, subsonic filter,
parametric EQs, peak/RMS-limiter, phase (180°) and delays. It serves also for a flexible
signal routing of the loudspeaker outputs (e.g. for top units / monitors / subwoofer).
Factory presets and user presets can be choosen, loaded and adjusted through a
navigation pad with a clear controlling sheme.
The integrated 18“ subwoofer provides a low-frequent radiation starting from 40 Hz to
160 Hz. The special tunnel geometry enables a high sound pressure with extra low
power compression and a low flow noise. The digital controlling enables a directional
(cardioid) dispersion (depending on preset) with a front-to-back damping of more than
20 dB in a wide frequency range. The subwoofer can be used in bigger production
surroundings (e.g. big indoor events) and also smaller installations.
The high-quality scratch- and impact-resistant black polyurethane coating offers optimal
road suitability. As an option you can choose a detachable and lockable roller base or
protective cover for protection. An additional protection of the loudspeaker offers the
comb-grid with acoustic foam and the special impregnation of the loudspeaker
membrane against moisture impacts.
4. The delivery status
The scope of delivery includes: 1x VSS 18, 1x PowerCon-mains cable & user manual
When you power up the VSS 18 for the very first time the following default parameters in
the main menu are pre-set:
- preset 1 „SD 7 OMNI“ is loaded
- Sig. LED threshold is adjusted to -50 dB
- User LED threshold is adjusted to 0 dB (0 dB = deactivated)
- output levels are shown on the LCD display
- inputs switched to analogue
- a password is not entered
This User Manual corresponds to the software version V1.0 r87.
It is obvious in the menu item „Diagnostics“!
4
5. The connection panel
1. 2. 3. 4. 5. 7. 7. 6.
Power
1. Power switch, Attention: please turn down all volume controls before switching on the VSS 18
to avoid an undesirable sound reproduction.
2. GROUND/FREE switch (disconnects the ground of the input channels from chassis to avoid
ground loops)
3. Fuse holder (replace fuse only by type 10A slow blowing fuse 5x20 mm)
4. Mains connector - PowerCon in / link,
Attention: use the correct mains voltage of 90 - 250 V AC / 50 - 60 Hz
Connections
5. Line in & link out - XLR balanced, analogue/digital switchable (see navigation structure);
link out is only active when the VSS 18 is powered on
6. Line in & link out - XLR balanced, always analogue;
link out is only active when the VSS 18 is powered on
7. Speaker output - 2x Speakon NL 4 (2x 500 W @ 4 Ohm (min. impedance), depending on
preset), Attention: Please mind nominal load and impedance of the passive loudspeaker(s)
you connect.
5
6. The control panel
1. 2. 3. 4. 5. 5.
←→
MUTE MENU
↑
Select Preset
Press 2s OK for LOCK
Pr 1 Versio SD7
TOP A
TOP B
Operation
1. System Volume (the “Level Control Mode” is pre-set in factory presets, see page 11) and
volume control for the internal loudspeaker (adjustable from -∞ to +6 dB)
2. Multicolour LED signalising different parameters:
LED does not light up - there is no input signal
LED lights up green - there is an input signal
LED lights up blue - the adjusted user threshold value is exceeded
LED lights up yellow - max. input level, the limiter is working
LED lights up red - there is a malfunction, you must power cycle the VSS 18
3. The LCD display is used as operation mode display of the VSS 18. The arrows in the LCD
display show the directions to navigate through the submenus (see navigation structure). All
software parameters must be set on the unit itself. Press the ‘OK’ button to select a parameter if
you are asked by the unit.
4. Navigation pad - The navigation pad is to be used for accessing and changing parameters on
the display of the hardware unit. Press the OK button if you are asked by the software (see
navigation structure).
5. Volume control for each output channel (adjustable from -∞ to +6 dB)
6
7. The navigation structure (menu navigation)
by means of the information on the LCD display
7
8
by means of the information of the menu list
Main Menu Pot Lock Mode
Sig LED Threshold
User Presets
Display Mode
Diagnostic
Factory Reset
System Menu
User LED Threshold
All channels locked
Top units locked
Channel A locked
Channel B locked
XX dB
XX dB
Output Levels
Operation Parameters
DIAG Screen
Device Settings only
All (incl. Presets)
Input 1 AD
Password
LCD Brightness
LCD Contrast
XXX
XXXXXXXX
XX
Analog
Digital
Digital X
Names Preset Name XXXXXXXXXXXX
Out A Name XXXXXX
Out B Name XXXXXX
Bass Routing A(a)/L(d)/R(dx)
Delay XXX X. m
Crossover Low Cut
Equalizer 1
B(a)/L(d)/R(dx)
A+B(a)/L+R(dx)
Crossover High Cut
Equalizer 5
Type Subsonic 12 dB, Q =1,2
Frequency XXXX Hz
Off
Frequency
Gain
Q XX
XX dB
XXXXX Hz
4th Order (24 dB)
Type
2nd Order (12 dB)
4th Order (24 dB)
Frequency
Gain
Q XX
XX dB
Frequency XXXX Hz
Parts which marked by “ ” must resp. can be set with
a value. The numbers of values of the letters and
numerical value are limited. You can read out the
quan tity fro m this she e t.
X
(0 ... 400)
(25 ... 8000 Hz)
(25 ... 8000 Hz)
(25 ... 16000 Hz)
(-12 dB ... +12 dB)
(0,7 ... 12,5)
(-12 dB ... +12 dB)
(0,7 ... 12,5)
(-60 dB ... -10 dB)
(-50 dB ... 0 dB)
(0 ... 127)
(6 ... 20)
B (analog) always
XXXXX Hz (25 ... 16000 Hz)
2nd Order (12 dB)
Output Level
Limiter
XX dB
Attack Time
Release Time
Threshold XX dB
XXX ms
XXXX ms
Out A
Out B
see Bass
see Bass
(0 ... 127 ms)
(0 ... 1270 ms)
( ... )-99 dB 0 dB
(-99 dB ... +6 dB)
Level Control Mode independent
A relative, B independent
relative
Reset Preset Are you sure?
Output Phase In Phase (0°)
Out of Phase (180°)
rel., lock A+B @ 0dB
rel., lock A @ 0dB
9
8. Operation
All these components must be set directly on the hardware device.
The adjustable parameters in the submenu “user presets” for Bass / Out A / Out B are
identical.
The names of the menu points refer to the user navigation on the device.
Main Menu
• Pot Lock Mode [to be activated by using “lock function”, see page 15]
All Channels locked [all volume pots locked]
Tops only [just lock the volume pots for Out A and Out B]
Channel A [just lock volume pot for out A]
Channel B [just lock volume pot for out B]
In this menu you can set four different „lock - functions“ for the three volume pots of the
VSS 18.
• Sig LED Threshold
Here you set the Threshold value where the LED starts to light green when the set value is
reached by the audio signal.
• User LED Threshold
Here you set the Threshold value where the LED starts to light blue when the set value is
reached by the audio signal.
• Display Mode
Output Levels [output level display]
Operation Parameters [input level display and operation display]
You can chose between two layouts of the LCD graphic display. The first one shows the output
levels and the other one gives an overview about input levels and temperature of the amplifier
and PSU (PowerSupplyUnit). If the unit is muted, the operation parameter screen is displayed
automatically.
• Diagnostics
In this menu you can read out the current software version.
• Factory Reset
Device Settings only
[Restore all adjustable parameters in the main menu]
All (incl.Presets) [Reset all changes made, incl. all user presets]
To reset the unit to the programmed initial state there are two “levels”, just to restore only the
parameters adjustable in the main menu or all menu items (incl. all user presets). After resetting
all changed settings are turned to the programmed initial state!
• System Menu
Input 1 AD (see page 13)
Analog
[switch input of channel A to analogue]
Digital [switch input of channel A to digital]
Digital X [switch input of channel A to digital X]
In this menu item you switch the input of channel A to analogue or digital or digital X. Digital X
causes a swaping of the left resp. right “audio-channel” of the digital signal on the input of
VSS 18, e.g. for the digital controlling of SD 7 and SD 8 (for the left and right side).
Password (see page 14)
In this menu item you can enter an 8-digit password. If you have enterd a password and
activate the “lock function” you must enter the password again to unlock the unit.
LCD Brightness [adjust brightness of the LCD graphic display]
LCD Contrast [adjust contrast of the LCD graphic display]
10
• User Presets [appears only from preset no. 9 to 12]
Names
Preset Name [enter preset name, max. 12 digits]
Out A Name [enter name of output A, max. 6 digits]
Out B Name [enter name of output A, max. 6 digits]
Bass
Routing [routing of the input channels]
A(a)/L(d)/R(dx)
B(a)/R(d)/L(dx)
A+B(a)/L+R(dx)
B (analog) always
The routing of channel A and B offers four possibilities:
1. analogue (left) or digital (left) or digital crossed (right)
2. analogue (right) or digital (right) or digital crossed (left)
3. analogue (left + right) or digital (left + right)
4. input B always analogue
Delay [adjust delay, in 10 cm steps]
Crossover Low Cut (high pass) [crossover function]
Type (Subsonic-Filter 12 dB Q=1,2 or 12 dB/Oktave or 24 dB/Oktave)
Frequency
This digital filter (crossover) limits the frequency range above the adjustable crossover
frequency with a selectable slope of 12db/octave or 24 dB/octave. You can not deactivate this
digital filter. When you need a full-range audio signal on the outputs A + B you should set the
frequency to 25 Hz and choose a type of the low cut filter.
Crossover High Cut (low-pass) [crossover function]
Type (Off or 12 dB/Oktave or 24 dB/Oktave)
Frequency
This digital filter (crossover) limits the frequency range below the adjustable crossover
frequency with a selectable slope of 12db/octave or 24 dB/octave.
This filter can be deactivated (Off).
Equalizer 1 [adjust equalizer]
Frequency
Gain
Q (bandwidth)
With this digital filter (parametr. EQ) you can affect the frequency range by making adjustments
of filter frequency (center frequency), the Gain (boost resp. cut) and the Q-factor (bandwidth).
If you adjust the sensitivity (Gain) to 0 dB you deactivate this filter.
Equalizer 5 [adjust equalizer]
Frequency
Gain
Q (bandwidth)
See adjustable parameters Equalizer 1.
Output Phase [adjust output phase, you can choose between „in phase” or „out of
phase 180°”]
Output Level [adjust output level, it is independent to the adjustment of the
volume pots]
11
Limiter [adjust limiter]
Attack Time
Release Time
Threshold
This dynamic processor is working when the audio signal exceeds the entered threshold-value.
The two time constants attack and release time draw the speed of the gain regulation
mechanism and are dependent to the program material.
Out A (see adjustable parameter bass)
Out B (see adjustable parameter bass)
Level Control Mode [adjustment resp. control of output level]
independent
A relative, B independent
relative
rel., lock A @ 0dB
rel., lock A+B @ 0dB
In level control mode you define the pre-settings (dependence) of the single potentiometers
(volume controls) in relation to the output level of the different channels (Bass / Out A / Out B).
Consequently you have three possibilities:
1. All volume controls are independently adjustable from each other. (independent)
2. The volume control for Out A depends on system volume control (master), Out A is
adjustable from -∞ to +6 dB; the adjustment of Out B is independent. (A relative, B indep.)
3. The volume controls for Out A and Out B are depending on the system volume control
(master), they are adjustable from -∞ to +6 dB. (relative)
4. The volume control for Out A is pre-set by 0 dB and depends on system volume control
(master), but it is not adjustable. The volume control for Out B depends on system volume
control (master), it is adjustable from -∞ to +6 dB. (rel., lock A @ 0dB)
5. The volume control for Out A and Out B is pre-set by 0 dB and depends on system volume
control (master), but they are not adjustable. (rel., lock A+B @ 0dB)
Reset Preset
Are you sure?
Here you can reset the preset to the programmed initial state, that means you re-activate the
factory-made user preset on this memory cell and delete your preset. If you want to change one
or more menu items in a user preset, choose this topic and overwrite it with a new value and
press the OK button. Hence the new value is saved in the preset without entering all set
parameters again.
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