K.M.E. Versio VSS 28 Manuale utente

User Manual

VSS 28

SD 1 SD X

1. Introduction

Thank you for choosing a K.M.E. product!

VERSIO has consistently been developed for portable requirements. With these compact

and ergonomic loudspeaker systems, you will be able to master flexibly your sound

reinforcement situations (main PA, monitoring, fill system, etc.).

This User Manual will provide you with a general overview over your new product including

warning notes to allow a save and professional use of the VSS 28. Before switching on the

VSS 28 for the first time read these instructions carefully, making yourself familiar with the

technical requirements. If you have any questions about this product please contact the

K.M.E. Support Team.

Within our extensive production processes, we only use certified materials and high-quality

components. Share with us the enthusiasm for good sound. The K.M.E. Team hopes you

enjoy your new PA-system without any difficulties!

2. Contents

1. Introduction............................................................................................. 2

2. Contents ................................................................................................. 2

3. Digital System Unit VSS 28.................................................................... 3

4. Delivery Status ....................................................................................... 3

5. Connection And Control Panel ............................................................... 4

6. General Overview Over Presets............................................................. 5

•6.1 Factory Presets............................................................................. 5

•6.2 User Presets ................................................................................. 6

7. Operation................................................................................................ 7

•7.1 Menu Items ................................................................................... 7

•7.2 Volume And Limiter Control ........................................................ 10

•7.3 User Presets ............................................................................... 10

8. Quickstart ............................................................................................. 11

9. Specifications ....................................................................................... 12

10. Active PA Systems ............................................................................. 14

11. EC Declaration Of Conformity ............................................................ 15

This User Manual corresponds to the software version V1.0

3. Digital System Unit VSS 28

The VSS 28 is a fully digital system unit including an integrated 2 x 8” hybrid subwoofer,

a 24 bit / 48 kHz audio DSP and three class D amplifiers (1 x 400 W subwoofer + 2 x 200

W tops). The VSS 28 is extremly compact and very light-weight (21.5 kg). The VSS 28 is

the heart and control centre for compact and freely configurable PA- and installation

systems. The integrated 8” neodymium speakers with a hybrid shell offer powerful and

precise bass sound reproduction starting at 45 Hz up to 160 Hz. The optimized tunnel

geometry allows a high sound pressure level at a low power compression and reduces

the air flow noise to a minimum. The high-quality scratch- and impact-resistant black

polyurethane coating offers optimal road suitability. An additional protection of the

loudspeaker offers the sound-permeable comb-grid with acoustic foam. Further, a special

impregnation protects the loudspeaker membrane against moisture impacts. A 24 bit

audio DSP and three powerful class D amplifiers which are powered by switch mode with

PFC (Power Factor Correction) work on the inside. For the first time the analogue input

signal is digitalized directly inside the input amplifier using an intelligent 24 bit AD

converter and remains digital until amplified in the class D amplifiers. Thanks to newest

digital technology the dynamic range of the audio signal increases in reducing conversion

losses to a minimum. The result is a sophisticated crystal-clear audio reproduction. The

digital input is based on an AES EBU & S PDIF signal with a sample rate of max. 192

kHz. The powerful audio DSP provides an optimal signal routing and controlling of all

adjustable parameters by using a PC software. There, the Gain, the digital Crossovers

with 12 dB 24 dB per octave, the subsonic Filter, the full parametrical EQ`s, the peak

RMS Limiter and the Delays can be adjusted. By using the three menu item buttons you

can adjust the system settings and load Factory or User Presets (also from SD Card).

Every Factory Preset already offers a wide range of solutions for diverse operating

options and user applications.

4. Delivery Status

When powering up the VSS 28 for the first time the following default parameters are

preset:

- Factory Preset 2 „VERSIO SD X“ is loaded

- User Presets 1 – 4 are identical with Factory Presets 1 – 4

- Inputs switched to analogue

- Menu Item “Mode” switched to “Neutral”

- Input level can be adapted from -∞to +6 dB

5. Connection And Control Panel

Power

1) Mains connector – PowerCon In (blue); Note: usage of the correct mains voltage of

90 - 250 V AC / 50 - 60 Hz

2) Ground/ Free switch – disconnects the ground of the input channels from chassis to avoid

ground loops

3) Power switch

Connections

4) Speaker Output – 2x Speakon NL 4 (2x 200 W @ 4 ohm (min. impedance), depending on

preset); Note: When connecting one or more passive loudspeakers please always take into

consideration their nominal load and impedance

5) Line In & Link Out - XLR balanced, analogue/ digital switchable, Link Out is only active

when the VSS 28 is powered on

6) Line In & Link Out - XLR balanced, analogue, Link Out is only active when the VSS 28 is

powered on

Operation

7) Menu Items – by using the three Menu Item buttons “Input“, “Mode“ and “Preset“ the

system setting can be changed (see 7.1)

8) SD Card slot – serves as an interface to load presets and firmware updates; it works with

an FAT format which can also be read and formatted on an usual PC (see 7.3)

Note: only SD Cards in FAT32 format can be read.

9) System Volume Control (from -∞to +6 dB) or adjustable Limiter (from -24 dB to 0 dB) –

control can be adjusted with a suitable tool (see 7.2)

10) LED indicator – indicates the chosen settings and the operating status of the VSS 28

(see 7.1)

6. General Overview Over Presets (UPDATE)

The VSS 28 has four Factory Presets and four User Presets. The Menu Item “Preset“

provides you with a preset selection and the possibility to load files from an SD Card.

How to load Factory Presets and how to adjust the settings, see chapter 7 “Operation”. In

the User Presets different adjustable parameters can be adjusted, for example: Limiter,

EQ, Delay, etc. Thus, the sound can be adjusted perfectly to every environment.

The preset numbers correspond to the numbering on the device.

•6.1 Factory Presets

are not adjustable and erasable

Preset 1: Preset 2:

VERSIO SD1 VERSIO SDX (Example 1)

1x VSS 28 + 2x VL 3 i: 1x VSS 28 + 2x VL 4:

analogue audio signal to Input A + B analogue audio signal to Input A + B or

or digital audio signal to Input A digital audio signal to Input A

Note:

Please use Factory preset 2 with system Versio SDX.

Preset 2:

alternative VERSIO System (Example 2)

1x VSS 28 + 8x VL 3 i:

analogue audio signal to Input A

+ B or digital audio signal to Input

Preset 3: BASS ONLY Preset 4: TOPS ONLY

1x VSS 28 (speaker outputs are inactive):

analogue audio signal to Input A + B or digital

audio signal to Input A

2x top units full range (subwoofer is muted):

analogue audio signal to Input A + B or digital

audio signal to Input A

•6.2 User Presets

are adjustable and programmable

These four User Presets will always be saved in the background. In the Delivery Status,

the factory presets 1 – 4 are identical with the user presets 1 – 4. Personalised presets

can also be created which overwrite the default User Presets. The presets can be

programmed with the K.M.E. preset editor software. For more details about programming

a preset, see 7.3.

7. Operation

The system unit VSS 28 offers a simple and comprehensive menu navigation. The menu

can be operated by using the three Menu Item buttons (“Input”, “Mode” and “Preset”) and

the control (System Volume or Limiter). The LED menu indicators and the multicolor LED

of the operating status give an exact overview over the current operating mode and the

chosen settings. The next sections provide you with important information on operating

the device. Please read this section carefully in order to prevent damage to the

device and to people!

•7.1 Menu Items

ADJUST THE PARAMTER

Push the chosen Menu Item button for approx. 1 second,

until LEDs are flashing.

Now, push the Menu Item button briefly and choose the

desired parameters.

Save your new settings by pushing the menu item button

again for approx. 1 second.

MODE

indicator LEDs continuously light up – Operating Mode enabled

indicator LEDs flashing – Configuration Mode enabled

The options you have in adjusting the respective menu items are explained in the

following sections.

Input

To use the VSS 28 flexibly and efficiently, the signal input and the channel operating

mode (Mono or Stereo) can be chosen in this Menu Item. The following settings are

possible:

1 2 3 4 5 6 7

ANALOGUE INPUT SIGNAL

1) Default setting – stereo mode with the analogue input signals on Channel A and B

2) Mono mode with the analogue input signal on Channel A

3) Mono mode with the analogue input signal on Channel B

DIGITAL INPUT SIGNAL

4) Stereo mode with the digital Input signal on Channel A

5) Mono mode with the left audio channel of the digital Input signal on Channel A

6) Mono mode with the right audio channel of the digital input signal on channel A

AUTOMATIC

7) Automatic input signal detection – LED indicator signalizes the applied input signal

(analogue or digital)

Mode

In this setting you can adjust the sound to the environment by using the default EQ,

Filter, Limiter etc. Note: this Menu Item is only available when using a FACTORY

PRESET! User Presets are personalized by you for your own purpose, so that further

sound adjustments are not necessary.

The following parameters can be selected as sound characteristics of the Factory

Presets:

1 2 3 4 5 6 7

SYSTEM VOLUME CONTROL ENABLED (see 7.2)

1) Default setting – the audio signal is reproduced without changes

2) The high frequencies increase slightly producing more boost in deep-toned rooms

3) The top unit level reduce slightly producing a powerful sound

4) Is the sound reproduced at low level the deep frequencies increase slightly; at a loud

level the deep frequency volume boost reduces slightly again

LIMITER ENABLED (see 7.2)

5) The audio signal is repoduced without changes

6) The high frequencies increase slightly producing more boost in deep-toned rooms

7) The top unit level reduce slightly producing a powerful sound

Note: The setting “Bassdynamic” is not available when the Limiter is enabled because the Limiter

and the Boost of the audio signal eliminate each other.

STATUS MULTICOLOR LED

signals different parameters:

LED is off - there is no input signal

LED lights up green - there is an input signal

LED lights up yellow - the Limiter is working (see 7.2)

LED lights up red - there is a malfunction; the VSS 28 has to be restarted

LED lights up cyan - the SD Card User Preset was successfully loaded and

saved on the device (see 7.3)

LED lights up purple - the User Preset could not be loaded from the SD Card;

read error due to faulty file (see 7.3)

Preset

To operate the respective system efficiently, the correct preset has to be chosen. Please

choose and load your current setup in this Menu Item of the VSS 28. You have the

possibility to choose the Factory Presets for a VERSIO system of K.M.E. (see 6.) or to

create, adapt or personalize User Presets for your own audio system. The following

LEDs indicate the chosen preset:

1 2 3 4 5 6 7 8

FACTORY PRESETS

1) Preset for the audio system Versio SD 1

2) Preset for a alternative Versio system

3) Preset for operating without top units; Note: signal Output „Out A“ and „Out B“ are

not active

4) Preset for operating without subwoofer; Note: the loudspeakers of the VSS 28 are

muted

USER PRESETS (see 7.3)

Note: Parameter selection in the Menu Item “Mode” are NOT available.

5) User Preset 1

6) User Preset 2

7) User Preset 3

8) User Preset 4

1 2 3 4

USER PRESET PROGRAMMING

Note: ONLY available when an SD Card with valid files has been inserted (see 7.3)

1) Save User Preset 1 from the SD Card to the device (old preset will be DELETED!)

2) Save User Preset 2 from the SD Card to the device (old preset will be DELETED!)

3) Save User Preset 3 from the SD Card to the device (old preset will be DELETED!)

4) Save User Preset 4 from the SD Card to the device (old preset will be DELETED!)

For more information about User Preset programming, see 7.3.

•7.2 Volume And Limiter Control

If you would like to change the volume of your system you can

adjust it directly on the VSS 28 by using the System Volume Control

(Level Control). You also have the possibility to activate and use the

Limiter. The control has two different operating modes/

functions which can be adjusted under the Menu Item “Mode” (see

7.1). In the first four sound settings only the System Volume Control

can be used while in the following settings only the Limiter Control

can be used. In the Menu Item “Mode” the LED “Limit” indicates

whether the Limiter is enabled or disabled.

SYSTEM VOLUME CONTROL

Is the LED “Limit” not light up, the Volume Control is active. The input level of the

audio system can be adjusted from -∞to +6 dB. If the adjusting slot is in the

vertical position the input level is adjusted to 0 dB.

LIMITER

If the LED “Limit” lights up, the Limiter Control is active. You can limit the level of the audio

system from -24 dB to 0 dB. Is the control adjusted to 0 dB the Limiter is disabled. In the

fully clockwise position the control is adjusted to 0 dB. In the User Presets the Limiter

Control is not available.

Note: You can not turn the control by using your hands as the control is recessed in the chassis.

The control can only be adjusted by using a slotted screwdriver or another suitable tool.

•7.3 User Presets

You have the possibility to create four different User Presets or to change them for your

own purposes. All sound settings, changes of parameters and system adjustments are

editable with the K.M.E. preset editor software (for PC only). It offers a wide range of

recources to design the sound of your audio system. For more details about indicators

and choosing a preset, see 7.1. Note: The Menu Item “Mode” is not available in a User

Preset.

SOFTWARE AND FILE FORMAT

The preset editor software saves the finished preset as a KPX file. These User Preset files

are named “VSS28UP1.kpx”, “VSS28UP2.kpx”, “VSS28UP3.kpx” or ”VSS28UP4.kpx” and

are NOT to be renamed.

Please save the files on an SD Card (FAT32) and insert it into the VSS 28. Now, the User

Presets can be loaded and used.

Note: The system unit reads the SD Card and recognizes a maximum of 4 User Presets

(as mentioned above) which you can choose. However, only the existing User Presets on

the SD Card are displayed! It is not possible to choose a User Preset in the Menu Item

“Preset” to save on the device if the VSS 28 finds none of the above file names on the SD

Card.

FIRMWARE UPDATE

If you want to update the firmware please read the enclosed User Manual for updates.

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