LD Systems LAX 12 D USB User Manual [en, de, fr, es, pl, it]

USER´S MANUAL
BEDIENUNGSANLEITUNG
MANUEL D`UTILISATION
MANUAL DE USUARIO
INSTRUKCJA OBSŁUGI
MANUALE D‘ USO

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LD LAX12D USB

12 CHANNEL MIXER WITH DSP & USB MP3 PLAYER

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Thank you for choosing LD-Systems!

We have designed this product to give you reliable operation over many years. Therefore LD-Systems underwrites
high quality products with its name and many years of experience as a producer.

Please, take a few moments to read these instructions carefully, as we want you to enjoy your new LD-Systems
products quickly and to the fullest.

Further information about LD-Systems check our website WWW.LD-SYSTEMS.COM

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2

LD LAX12D USB

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12 CHANNEL MIXER WITH DSP & USB MP3 PLAYER

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3

PREVENTIVE MEASURES:

1. Please read the attached safety instructions as well as the following instructions carefully.

2. Please keep all the instructions.

3. Please use the device only as intended.

4. Please respect the valid waste management rules. Please deliver the packaging divided into plastic and
paper/ cardboard to the recycling management.

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5. Please refer all servicing to qualified personel only if the device is damaged, exposed to liquid/rain or if it does
not operate normally.

6. Please, do not expose to any kind of heat such as ovens, radiators, or any other devices (incl. amplifiers).
Please check for enough distance between amplifiers and walls, racks, etc. to prevent overheating.

7. After connection please check the wiring to prevent any kind of accident or damage.
Please never use any kind of damaged cable and wiring.

8. Only use authorized and stable stands, brackets, shelfs, tables etc.. for installations. Please check for
adequate stability against collapse.

9. Appearance of interferences when using wireless systems.
The simultaneous use of wireless microphones and of mobile phones (if both devices are not very distant from
each other) can lead to the appearance of interferences in the microphone signal which can be heard in the
PA system.

CAUTION

RISK OF ELECTRIC SHOCK

CAUTION:

To reduce the risk of electric shock, do not remove cover (or back). No user serviceable parts inside. Refer
servicing to qualified personnel.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the
user to the presence of uninsulated “dangerous voltage” within the product´s enclosure that may be
of sufficient magnitude to constitute a risk to persons.

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The exclamation mark within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
appliance.

DO NOT OPEN

CAUTION! HIGH VOLUME!

You will operate this transmission system for professional use. Therefore the commercial use of this equipment

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is liable to the rules and regulations of the Accident Prevention & Insurance Association of your industry sector.
Adam Hall as a manufacturer is bound to inform you formally about the existence of eventual sanitary risks.

This system is able to induce an acoustic pressure of 80 db. 85 db is by law the maximum audio pressure
level which your ear can be exposed to during a work day. It was set according to the technical expertise of the
occupational medicine as a basis for the noise rating level. Higher sound levels or longer exposition times could
damage your ear. The time of exposition by higher sound pressure levels should be shortened in order to prevent
from ear damages. Here are a few reliable warning signals which show that you have exposed yourself for a too
long period to excessive sound pressure levels:

- You hear bell- or whistling sounds!

- You have the impression that you can’t hear high tones anymore!

4

FEATURES & GETTING STARTED:

INTRODUCTION

Thank you for choosing this LD Systems audio product. The LAX12D is a professional compact mixer. It's
smooth, natural sound and precise reproduction make it ideal for gigs, recording, and fixed PA installations. The
LAX12D offers some features that are not often found in this price class. The mono channels stand out because
of their ultra-low-noise microphone preamps with +48V phantom power. In addition, all channels are equipped
with warm and natural sounding equalizers: the mono channels have 3-band EQs (MID: with adjustable centre
frequencies), the stereo channels with 4-band EQs with fixed centre frequencies. Moreover, the LAX12D has a
highly precise (12-segment) level meter, 2-track inputs that are assignable to both the main mix outputs and
the phones/control room outputs, and much more. In addition, the integral 24-bit effects processor provides 100
effects presets. The LAX12D mixer is extraordinarily easy to use. Nevertheless, we recommend that you read this
manual carefully before using the product for the first time. This will enable you to get the most out of your mixer.

FEATURES

The LAX12D mixer was developed for professional applications and offers the following features:

• MIC input channels with gold-plated XLR connectors and balanced line inputs

• stereo input channels with balanced TRS jacks

• ultra-low-noise, discrete MIC preamps with +48V phantom power

• High headroom and dynamic range

• mono channels with inserts

• switchable low-cut lter on each mono channel

• +4dBu/-10dBV selector on each stereo channel

• warm and natural sounding 4-band (xed-frequency) EQ on each stereo channel

• 3-band EQ (MID: adjustable centre frequency, 100 Hz – 8 kHz) on each mono channel

• peak LED on each channel

• mute/Alt3-4/solo function on each channel

• 2 AUX returns as additional inputs

• control room and phones outputs

• 2-track inputs assignable to main mix outputs and phones/control room outputs

• highly precise (12-segment) level meter

• integral 24-bit effects processor

• 100 effects presets

• effect bypass function via MUTE switch or footswitch (available optionally, connects to DFX FOOTSWITCH jack)

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5

FEATURES & GETTING STARTED:

• Before plugging in your LAX12D mixer, make certain that the available AC voltage is suitable for your device.

• Make certain that the mixer is turned off before connecting it to the mains power, and set all controls to "zero".

This will avoid damage to your speakers due to loud power-on noise and high levels.

• Always turn on the mixer rst and then the power amplier. When powering down, the sequence is reversed:

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First turn off the power amplifier and then the mixer.

• Always turn off the LAX12D mixer before connecting cables.

• Do not use solvents to clean the LAX12D; use a clean, dry cloth. When powering down, the sequence is

reversed: First turn off the power amplifier and then the mixer.

• Always turn off the LAX8D mixer before connecting cables.

• Do not use solvents to clean the LAX8D; use a clean, dry cloth.

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CONTROL ELEMENTS:

1

MONO CHANNELS (MIC/LINE)

The mono channels offer balanced XLR connectors for low-impedance micro­phones and other low-level equipment. In addition, there are 6.3 mm TRS jack
input connectors for microphones and line level equipment (e.g., synthesizers,
drum computers, effects processors, etc.). Important: The MIC and LINE inputs
cannot be used simultaneously on the same channel. +48V PHANTOM POWER
The XLR inputs on the mono channels provide +48V phantom power for con­denser microphones. Important: Never connect a microphone without phantom
power to the XLR input when phantom power is on.

2

INPUT GAIN ADJUSTMENT

The input gain control has two different scales: one for microphones and one

for line level devices. The outer ring (0 ~ 44 dB) refers to microphones, the
inner one (+15 ~ -30 dB) to line level devices. Always adjust the gain control

so that the peak LED above the channel fader lights up only occasionally. If the
LED is on constantly, this can lead to distortion.

3

LOW CUT FILTER

The LOW CUT button activates a low cut lter (75 Hz, slope 18 dB/octave) for

reducing low-frequency noise such as mains hum or handling noises from
vocal microphones.

4

STEREO CHANNELS

The stereo channels are configured as stereo pairs with 6.3 mm TRS jack
input connectors. Mono signal sources should be connected to the left jack
input connector.

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MIC 1

1

BAL OR
UNBAL

LINE IN 1

2

LINE

+15dB -25dB

MIC

0dB 40dB

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3

LOW CUT

75Hz 18dB/Oct

LINE IN 19/20

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4

LEFT(MONO)

5

+4dBu/-10dBV SELECTOR

The line inputs of the stereo channels have a button for selecting the input

sensitivity (+4 dBu for professional audio equipment, -10 dBV for general hi-

devices, etc.). If you are uncertain which setting to use for the respectively

connected device, rst try +4 dBu. If the level is too low, switch to -10 dBv.

6

AUX SENDS

These 6.3 mm TRS sockets can be used to split the signal and send it additio­nally to external effects processors or the like. In addition, these outputs can
be used as submix outputs.

7

PHONE

Headphones for monitoring the output signal (MAIN MIX) can be connected to
this TRS socket.

RIGHT

5

6

-10dBV

AUX SENDS

1

2

+4dBu

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7

PHONE

7

CONTROL ELEMENTS:

EQUALIZER
The mono input channels of the LAX12D are equipped with 3-band

equalizers (HI/MID/LOW; MID: with adjustable centre frequencies), the

stereo channels with 4-band EQs with fixed centre frequencies (HI,

HI-MID, MID-LOW and LOW). The boost/cut range is +/-15 dB.

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8

HI

This knob is used to control the high frequencies. You can use it to
add more brilliance and presence to the corresponding signal or
attenuate undesirably loud high frequencies (boost/cut range -15

dB to +15 dB, centre frequency 12 kHz).

9

MID

This knob is used to control the midrange frequencies. These are
the most important frequencies for musical instruments and the

human voice (boost/cut range -15 dB to +15 dB). The FREQ knob

is used to set the centre frequency that is to be boosted or cut
(100 Hz to 8 kHz).

8

10

9

11

12

10

11

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8

HI-MID

This knob is used to control the hi-mids, which are slightly higher
than the frequencies covered by the MID EQ. This provides even
greater flexibility when it comes to equalization of the important
midrange frequencies.

MID-LOW

This knob is used to control the mid-low frequencies (boost/cut

range -15 dB to +15 dB, centre frequency 500 Hz).

LOW

This knob is used to control the low frequencies. You can use
it, for example, to boost a bass drum, bass guitar or male voice

(boost/cut range -15 dB to +15 dB, centre frequency 80 Hz).

AUX SEND CONTROLS

These two knobs are used to adjust the level of the signals sent
to AUX buses 1 and 2. This does not affect the MAIN MIX output
signal. AUX 1 can be configured as PRE or POST fader using the
PRE/POST button. In the POST position (button not pressed) the
signal is sent after the channel fader, meaning that the volume set
for this channel also affects the AUX 1 signal. In the PRE position
(button pressed), the signal is sent before the fader, so that the

channel fader does not affect the AUX 1 signal. AUX 2 is a "post
fader" path.

13

14

15

16

17

KAEPKAEP

10

dB

5

0

-5

-10

18

-15

-20

-30

-40

-60

OO

10

dB

5

0

-5

-10

-15

-20

-30

-40

-60

O

O

CONTROL ELEMENTS:

14

PAN/BAL

The mono channels of the LAX12D have panorama (PAN) controls and the stereo channels have balance

(BAL) controls, both of which are used to distribute the signal to the right and left output channels.

15

MUTE/ALT3-4

Each of the channels of the LAX12D has a MUTE/ALT3-4 switch. This switch can be used to send the signal
of the respective channel to the ALT3-4 output.

16

SOLO

The SOLO switch lets you hear only the signal of the channel for which the solo function is activated (button
pressed) without the other channels. The SOLO switch is especially useful for adjusting input levels (gain

adjustment) and as a "preview" option for monitoring the respective signal.

17

PEAK LED

All channels of the LAX12D are equipped with a peak LED for monitoring the respective audio signal. If the

peak LED lights up (6 dB below the actual clipping threshold), this means that the signal is peaking and

distortion may ensue.

18

CHANNEL FADER

This fader controls the overall volume of the respective channel, i.e., the level at which the signal is sent to
the main mix.

19

2-TRACK IN/OUT

TAPE IN: Use the TAPE IN input to connect a tape recorder or DAT recorder. Press the 2TK IN button on the
front panel to send the signal coming from the connected device to the PHONES/CONTROL ROOM output or
the 2TK TO MAIN MIX button to send it to the MAIN MIX output. TAPE OUT: The mix can be output to a tape
recorder via these cinch (RCA) connectors. 2TK IN CONTROL: This control is used to adjust the level of the
2TK IN signal, which can be varied from ∞ to MAX.

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CONTROL ELEMENTS:

20

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STEREO AUX RETURNS

These 6.3 mm jack (TRS) sockets are primarily used to return the audio signal from an external effects processer
to the mixer (MAIN MIX). In addition, these connectors can be used as additional AUX inputs. Note: If no connector
is plugged into Aux Return 2, the signal of the internal effects processor is present on Aux Return 2.

1

LEFT(MONO)

RIGHT

2

STEREO AUX RETURNS

20

RIGHT

2TK IN

LEFT

TAPE IN TAPE OUT

2-TRACK IN/OUT

L

R

19

MAX

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21

AUX RETURN CONTROL

This control is used to adjust the return levels of AUX
paths 1 & 2, whereby the signals are added to the L/R
MAIN MIX.

22

EFX TO AUX 1

This switch routes the signal that is present at AUX
RETURN 2 to the AUX 1 output so that the effects
can also be heard in the monitor mix - which proves
extraordinarily helpful in practice.

23

AUX SEND CONTROLS

These controls adjust the master AUX SEND level (-∞

to +15 dB). This makes it possible to boost the AUX
signals by up to 15 dB if necessary.

24

LED LEVEL METER

The stereo level meter (12 segments) is used to
monitor the level of the output signal.

25

SOLO MODE BUTTON & SOLO LED [25]

These buttons are used to toggle between the
two solo modes PFL (pre-fader listening, button
not pressed) and AFL (after-fader listening, button
pressed).

In PFL mode, the signals of the channels that have
been switched to SOLO are sent pre fader, i.e., the fa­der position (channel volume) does not influence the
solo signal. In AFL mode, the signals of the channels
that have been switched to SOLO are sent post fader

plus panorama control – which, although it is above

the channel fader, comes after the fader in terms of
circuitry. In this mode, the position of the channel
fader and the panorama control also influences the
solo signal. Note: The SOLO mode selection (PFL/AFL)
does not have any affect until at least one channel
has been switched to solo mode. In this case, the
SOLO ACTIVE LED is also illuminated.

26

ALT3-4 FADERS

These faders are used to control the level of the ALT

output (control range -∞ to +10 dB).

CONTROL ELEMENTS:

0

1

8

-

+15

AUX RTN 1

21

8

-

AUX RTN 2

0

22

EFX TO AUX 1

0

1

8

-

23

0

2

8

-

AUX SENDS

24

SOLO
ACTIVE

25

SOLO MODE

26

+15

+15

DFX

+15

LEVEL

2

SET

10

dB

-5

-10

-15

-20

-30

-40

-60



ALT 3-4

PFL
AFL

5

0

8 8

FUNCTION

00-09 Echo
10-19 Echo +Verb
20-29 Tremolo
30-39 Plate
40-49 Chorus

PEAK/MUTE

0

8

-

+15

PHONES

CONTROL ROOM

PWRPHANTOM

CLIP

+10

+7

+4

+2

0

-2

-4

-7

-10

-20

-30

LR

OUTPUT LEVEL

MAIN MIX

LEVEL

10

dB

5

0

-5

-10

-15

-20

-30

-40

-60



LEFT

PROGRAM (PUSH)

50-59 Vocal
60-69 Rotary
70-79 Small Room
80-89 Flange+Verb
90-99 Large Hall

DFX MUTE

CTR ROOM

SOURCE

MAIN MIX

ALT 3-4

2TK IN

ASSIGN
TO MIX

ALT 3-4

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33

32

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31

30

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29

RIGHT

28

10

dB

5

0

-5

-10

-15

-20

-30

-40

-60



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2TK

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CONTROL ELEMENTS:

27

MAIN MIX LEVEL

These two faders are used to control the level of the signals sent to the L/R MAIN MIX and TAPE OUT outputs.

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28

TK TO MAIN MIX

When this button is pressed, the 2-TRACK IN signal is sent to the MAIN MIX output.

29

ALT3-4 TO MAIN MIX

When this button is pressed, the ALT3-4 signal is sent to the MAIN MIX output and added to the output signal.

30

CONTROL ROOM SOURCE

These buttons are used to determine which signal is heard via the monitor speakers or headphones: MAIN
MIX, ALT 3-4, 2TK IN. Please note that these buttons are inactive in solo mode. If the selected signal cannot
be heard after the CONTROL ROOM SOURCE buttons are pushed, please first check whether the solo mode
has been activated in one of the channels.

31

PWR LED (POWER)

This LED indicates that the mixer is on.

32

PHANTOM LED

This LED indicates that phantom power has been activated.

33

PHONE/CONTROL ROOM

This control is used to adjust the level of the signal sent to the PHONE/CONTROL ROOM output.

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DIGITAL 24-BIT EFFECTS PROCESSOR

34

DFX MUTE SWITCH

This switch is used to activate/deactivate the effects
module. If necessary, this function can also be controlled

conveniently using a footswitch connected to the FOOT
SW socket.

35

DISPLAY

The selected preset is displayed here.

36

PRESET SELECTOR

This knob is used to select the desired effects preset.
There is a total of 100 presets available: Echo, vocal, pla­te and versatile two-effect combinations. Once you have
selected the desired preset, press the knob to confirm
your selection.

37

PEAK LED

This LED lights up when the input signal reaches the
clipping threshold. When the digital effects module is
deactivated, this LED is illuminated constantly.

CONTROL ELEMENTS:

PROGRAM (PUSH)

35

88

FUNCTION

37

00-09 Echo
10-19 Echo +Verb
20-29 Tremolo
30-39 Plate
40-49 Chorus

PEAK/MUTE

50-59 Vocal
60-69 Rotary
70-79 Small Room
80-89 Flange+Verb
90-99 Large Hall

DFX MUTE

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BACK PANEL:

44 42

PHAN TOM

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ON OFF

POWER

43 45 41 40 39 38

38

INSERTS (MONO CHANNELS)

All mono MIC channels are additionally equipped with Insert sockets (stereo jack, TRS), via which external
effects devices or the like can be patched into the respective channel. The signal is sent immediately after
the input gain control (TRIM) to an external signal processor, for example, a compressor or limiter. Once the
signal has passed through the external signal processor, it is returned to the same channel immediately

before the EQ. Note: Connecting external devices to insert points requires a so-called "Y" cable.

39

CTRL ROOM OUTPUT

These 6.3 mm sockets are used to send the signal to studio monitor speakers (CONTROL ROOM) or a PA
system.

40

ALT OUTPUT

These unbalanced 6.3 mm sockets serve as additional outputs. Their level is controlled using the ALT 3-4

fader in the master section of the mixer (max. +22 dBu). The signals of all channels for which the Mute/Alt
3-4 button has been pushed are routed to this bus; they no longer reach the main mix.

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41

MAIN MIX OUTPUT

The L/R MAIN MIX OUTPUT has both XLR and 6.3 mm TRS sockets via which the main mix output signal can

be sent to an amplier. The output level is controlled by the MAIN MIX LEVEL fader (-∞ to +10 dB).

Apparaten skall anslutas
till jordat uttag nar den
ansluts till ett natverk

EUROPE

AC INPUT

Fuse:T250mAL

£

210-240V 50Hz

RATED POWER CONSUMPTION: 23W

FOOT SW

RIGHT

MAIN MIX OUTPUT(BAL/UNBAL)

RIGHT

LEFT

LEFT

WARNING: SHOCK HAZARD
AVIS: RISQUE DE CHOC ELECTRIQUE

CAUTION

RISK OF ELECTRIC SHOCK

OUTPUT

DO NOT OPEN

L

R

CAUTION:

REPLACE WITH THE SAME TYPE FUSE AND RATING

- DO NOT OPEN

DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE

- NE PAS OUVRIR

LEFT(3)

INSERT

RIGHT(4)

ALT OUTPUTCTRL ROOM

INSERT

MODEL

SERIAL

3 4

2

INSERT

INSERT

1

42

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43

44

45

14

FOOT SW

This socket can be used to connect an external footswitch for activation/deactivation of the integral effects
processor (function identical with that of the DFX MUTE switch).

PHANTOM SWITCH

This switch activates the +48V phantom power for the four XLR microphone inputs. Important: Make certain
that the phantom power is off before connecting microphones.

POWER SWITCH

This switch is used to turn the mixer ON or OFF.

AC INPUT

This socket is used to connect the power adapter.

INSTALLATION AND CONNECTION:

INSTALLATION AND CONNECTION

Now that you have familiarized yourself with the functions of the LAX12D mixer, you should have no trouble
using it. Nevertheless, we recommend that you read the following section carefully. It contains important infor­mation about how to obtain the best results with your mixer.

-Before connecting mics or instruments, make certain that the channel and MAIN MIX faders of the LAX12D

mixer are set to minimum (all the way down).

- Make certain that all external devices such as mics, power amplifiers, speakers, effects processors, etc. are
connected properly.

- When running cables, take care not to injure anyone or damage the equipment.

- Set the output level of your mixer and the connected power amplifier to no more than 75%.

- Do not set the PHONE/CONTROL ROOM level higher than 50%.

- Set the EQ controls (HI, MID, LOW) to the middle position.

- Set the PAN/BAL controls to the middle position.

- While speaking into each connected mic (speech or vocals) or playing the instrument, adjust each channel
fader (LEVEL) so that the peak LED of the corresponding channel comes on only occasionally. This will ensure
that there is always enough headroom and dynamic range available.

- You can shape the sound of the individual signals using the respective channel equalizer.

- Repeat this sequence of steps for all of the input channels being used, always keeping an eye on the LED level
meter (OUTPUT LEVEL) so that it does not swing too far into the red area.

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AUDIO CONNECTIONS

The LAX12D mixer offers numerous, highly flexible possibilities for balanced or unbalanced connection of your
equipment via XLR and 6.3 mm TRS connectors. These are explained below.

WIRING CONFIGURATION

The XLR and 6.3 mm TRS connectors of the LAX12D permit balanced and unbalanced connections depending on
the equipment connected. Examples for wiring your system:

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WIRING CONFIGURATION:

BALANCED

Ring

+

-

Tip

Sleeve

Ring

Pin3 (-)

Pin1 ( )

FOR 6.3 MM

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TRS PLUGS

FOR XLR
CONNECTORS

UNBALANCED

Tip

Sleeve

+

Pin1 ( )

UNBALANCED

Pin2 (+)

Pin3 (-)
(Linked to Pin1 manually, )

IN-LINE CONNECTION

The mixer provides 6.3 mm stereo and XLR connectors for in-line connection of most professional audio equip­ment. Configuration examples for the respective connections are provided below.

Tip

Sleeve

Sleeve

Ring

1
2

3

Tip

Ring

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TIPRINGSLEEVE

1

3

2

BALANCED

TIPRINGSLEEVE

SLEEVERING TIP

1

3

2

1 2

3

UNBALANCED

BALANCED

Pin2 (+)

+

Tip

Sleeve

Tip
Ring

Sleeve

1
2

3

1
2
3

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TIPRINGSLEEVE

TIPSLEEVE

3

2 1

TIPSLEEVE

TIPRINGSLEEVE

UNBALANCED

TIPSLEEVE

TIPRINGSLEEVE

3

2 1

SLEEVETIP

SLEEVERINGTIP

Sleeve

Sleeve

Sleeve

Sleeve

Sleeve

Sleeve

Tip

Ring

Tip

1
2
3

Tip

Tip

Ring

Tip

Tip

Ring

1
2

3

1

3

2

1 2

3

1

3

2

1
2
3

1
2
3

Cent er

Screen

Tip

Sleeve

Tip
Ring

Sleeve

Cent er

Screen

Centre

Screen

1
2
3

WIRING CONFIGURATION / PRESET

LIST:

INSERT CONNECTION

When connecting external signal processors via the main insert on the mixer, one TRS cable is required for each
send/return. The conguration of this so-called "Y" cable is depicted below.

FOR 6.3 MM STEREO PLUGS (TRS INSERT)
INSERT CABLE

Send

Sleeve

Sleeve

Sleeve

Tip

Ring

Tip

Ring

Tip

Ring

Ring

Return

Tip

Sleeve

TIP RING SLEEVE

TIP RING SLEEVE

TIP RING SLEEVE

SLEEVE TIP

SLEEVE RING TIP

12

3

2

3

1

NO. PRESET DESCRIPTION PARAMETER

00-09 Echo The input signal is sent to the output with a time delay Delay time: 145 - 205 ms

10-19 Echo+Verb Echo with room effect (hall) Delay time: 208 - 650 ms

Decay time: 1.7 - 2.1 s

20-29 Tremolo Amplitude modulation of the signal Rate: 0.6 Hz - 5 Hz

30-39 Plate Hall effect: Simulation of the classic plate vocal effect

Decay time: 0.9 s ~ 3.6 s

(adds brightness)

40-49 Chorus Creates the illusion of multiple instruments (voices) on the basis of a

Rate: 0.92 Hz ~ 1.72 Hz

single signal

50-59 Vocal Hall effect: Simulation of a small room with a short decay time Rev. decay time: 0.8 ~ 0.9 s

Pre-delay: 0 - 45 ms

60-69 Rotary Simulation of typical rotary speaker effect incl. bass box Modulation depth :

20% ~ 80%

70-79 Small room Hall effect: Simulation of a bright studio room effect Decay time: 0.7 ~ 2.1 s

Pre-delay : 20 - 45 ms

80-89 Flanger + Verb Combination of a modulated delay effect plus hall Decay time: 1.5 ~ 2.9 s

Rate : 0.8 Hz ~ 2.52 Hz

90-99 Large hall Hall effect: Simulation of a large room Pre-delay : 23 ~ 55 ms

Tip (Send)

Sleeve

Tip (Return)

Sleeve

1

2 (Send)

3

1

2 (Return)

3

Centre (Send)

Screen

Centre (Return)

Screen

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17

SPECIFICATIONS:

MONO CHANNELS

Microphone input: electronically balanced, separate
inputs
Frequency range: 10 Hz … 45 kHz, +/-3 dB

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THD+N: 0.005% @ +4 dBu, 1 kHz
Gain: 0 dB … 40 dB (MIC)
Signal-to-noise ratio: 102 dB

Line input: electronically balanced
Frequency range: 10 Hz … 45 kHz, +/-3 dB
THD+N: 0.005% @ +4 dBu, 1 kHz
Gain: +15 dBu … -25 dBu (LINE)

STEREO CHANNELS

Line input: unbalanced
Frequency range: 10 Hz … 45 kHz, +/-3 dB
THD+N: 0.005% @ +4 dBu, 1 kHz

IMPEDANCE

Microphone input: 3.6 kohm
All other inputs: 10 kohms or higher
Tape out: 1 kohm
All other outputs: 120 ohms

EQUALIZER

Treble (shelving):+/-15 dB @ 12 kHz
Midrange (bell, mono channels): +/-15 dB @ 100 Hz
… 8 kHz

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High midrange (stereo channels): +/-15 dB @ 3 kHz
Low midrange (stereo channels): +/-15 dB @ 500 Hz
Bass (shelving): +/-15 dB @ 80 Hz
Low cut filter: 75 Hz, 18 dB/oct.

MAIN MIX SECTION

Noise (bus noise): Fader 0 dB, channels muted: -100 dBr
(ref.: +4 dBu)
Fader 0 dB, all input channels activated (unity gain): -90
dBr (ref.: +4 dBu)
Max output level: +22 dBu (XLR, balanced); +22 dBu
(6.3-mm jack, unbalanced)
AUX returns, gain: OFF … +15 dB
AUX sends, max. output level: +22 dBu

POWER SUPPLY

(AC adapter)
Mains voltage:
USA/Canada 100 – 120 V, ~60 Hz
Europe 210 – 230 V, ~50 Hz
Great Britain/Australia 240 V, ~50 Hz
Power consumption: 12-channel mixer: 30 W

PHYSICAL SPECIFICATIONS

Dimensions (WxDxH):
12-channel mixer: 315 x 436 x 86 mm
Weight:
12-channel mixer: 5.1 kg without adapter

Subject to technical modifications without prior notice,
because all of our products are tested and improved
continually.

DSP EFFECTS SECTION

A/D and D/A converters: 24-bit

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DSP resolution: 24-bit
Effect types: Echo, echo+ reverb, tremolo, plate, chorus,
vocal, rotary, small room, flanger + reverb, large hall
No. of presets: 100
Switches: Preset selector switch, effect bypass

18

USB PORT
For USB memory sticks only

MP3 PLAYER:

POWER
To power on the USB-MP3 player keep the power button pressed for 3 seconds. Same procedure to power it off.
Once the player is on, it is automatically set to the "pause" mode.

PLAY / PAUSE
Press this button during playback to pause the playback. Press again to start the playback again.

STOP
Press this button during playback to stop the playback. The display will now show how many tracks are available
on the USB memory stick. When the playback has been stopped press PRE/NEXT to go the previous/next track
or press the STOP button again to go to the beginning of the first track. Press the PLAY/PAUSE button to start the
playback again.

PRE
Pressing this button while in pause mode will take you to the previous track. The pause mode remains ON. Press
the PLAY/PAUSE button to start the playback again. Pressing this button during playback will take you to the
previous track and play it.

NEXT
Pressing this button while on pause mode will take you to the next track. The pause mode remains ON. Press
the PLAY/PAUSE button to start the playback again. Pressing this button during playback will take you to the next
track and play it.

REPEAT

Press this button to choose between the four following repeat modes:

1. REP ALL
Repeat all tracks available on the memory stick. Display shows:

2. REP 1
Repeat one track. Display shows

3. PLAY IN ORDER

Plays the tracks selected previously. No display indication

MUSIC PLAY ER

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4. RANDOM PLAY

Plays all tracks in a random order. Display shows: A

IMPORTANT:

A

Display when no USB memory stick is connected:

B

Display when the player scans your USB memory stick for MP3 music files:

C

Display when the player is in pause mode:

D

Display when the player is on:

A

B

C

D

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19

MANUFACTURER´S DECLARATIONS:

LIMITED WARRANTY

This Limited Warranty applies to the Adam Hall, LD Systems, Defender, Palmer and Eminence branded products.

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The statutory warranty rights towards the seller are not affected by this guarantee. In fact, it justifies, additional
independent warranty claims towards Adam Hall.

Adam Hall warrants that the Adam Hall product you have purchased from Adam Hall or from an Adam Hall autho­rized reseller is free from defects in materials or workmanship under normal use for a period of 2 or 5 years from
the date of purchase.

The Limited Warranty Period starts on the date of purchase. In order to receive warranty services you are required
to provide proof of the purchase date. Your dated sales or delivery receipt, showing the date of purchase, is your
proof of the purchase date. Should products of the brands named above be in need of repair within the limited war­ranty period, you are entitled to warranty services according to the terms and conditions stated in this document.

This Limited Warranty extends only to the original purchaser of this Adam Hall branded product and is not trans­ferable to anyone who obtains ownership of the Adam Hall branded product from the original purchaser. During
the Limited Warranty Period, Adam Hall will repair or replace the defective component parts or the product. All
component parts or hardware products removed under this Limited Warranty become the property of Adam Hall.

In the unlikely event that your Adam Hall product has a recurring failure, Adam Hall, at its discretion, may elect to
provide you with a replacement unit of Adam Hall´s choice that is at least equivalent to your Adam Hall branded
product in hardware performance.

Adam Hall does not warrant that the operation of this product will be uninterrupted or error-free. Adam Hall is not
responsible for damage that occurs as a result of your failure to follow the instructions included with the Adam

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Hall branded product.

This Limited Warranty does not apply,

- to wear parts (e.g. accumulator)

- to any product from which the serial number has been removed or that has been damaged or rendered defec
tive as the result of an accident

- in case of, misuse, abuse, or other external causes

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- by operation outside the usage parameters stated in the user´s documentation shipped with the
product

- by use of spare parts not manufactured or sold by Adam Hall

- by modification or service by anyone other than Adam Hall

These terms and conditions constitute the complete and exclusive warranty agreement between you and Adam
Hall regarding the Adam Hall branded product you have purchased.

20

LIMITATION OF LIABILITY

If your Adam Hall branded hardware product fails to work as warranted above, your sole and exclusive remedy
shall be repair or replacement. Adam Halls’ maximum liability under this limited warranty is expressly limited
to the lesser of the price you have paid for the product or the cost of repair or replacement of any hardware
components that malfunction in conditions of normal use.

Adam Hall is not liable for any damages caused by the product or the failure of the product, including any lost
profits or savings or special, incidental, or consequential damages. Adam Hall is not liable for any claim made by
a third party or made by you for a third party.

This limitation of liability applies whether damages are sought, or claims are made, under this Limited Warranty
or as a tort claim (including negligence and strict product liability), a contract claim, or any other claim. This limi­tation of liability cannot be waived or amended by any person. This limitation of liability will be effective even if
you have advised Adam Hall of an authorized representative of Adam Hall of the possibility of any such damages.
This limitation of liability however, will not apply to claims for personal injury.

This Limited Warranty gives you specific legal rights. You may also have other rights that may vary from state to
state or from country to country. You are advised to consult applicable state or country laws for a full determina­tion of your rights.

REQUESTING WARRANTY-SERVICE

To request warranty service for the product, contact Adam Hall or the Adam Hall authorized reseller from which
you purchased the product.

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EG-DECLARATION OF CONFIRMITY

These products meet the essential requirements as well as the further standards of the EU Directives 199/5/EU,
89/336/EU.

CORRECT DISPOSAL OF THIS PRODUCT (ELECTRICAL WASTE)

(Applicable in the European Union and other European countries with separate collection systems)

This marking shown on the product or its literature, indicates that it should not be disposed with other household
wastes at the end of its working life. To prevent possible harm to the environment or human health from uncon­trolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the
sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or their local government
office, for details on where and how they can recycle this item in an enviromentally friendly manner.

Business users should contact their supplier and check the terms and conditions of the purchase contract. This
product should not be mixed with other commercial wastes for disposal

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21

WEEE-DECLARATION

Your LD-Systems product was developed and manufactured with high quality materials and components wich
can be recycled and/or reused. This symbol indicates that electrical and electronic equipment must be disposed
of separately from normal waste at the end of its operational lifetime.
Please dispose of this product by bringing it to your local collection point or recycling centre for such equipment.
This will help to protect the environment in which we all live.

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BATTERIES AND ACCUMULATORS

The supplied batteries or rechargeable batteries can be recycled. Please dispose of them as special waste or return
them to your specialist dealer. In order to protect the environment, only dispose exhausted batteries.

NOTES:

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Adam Hall GmbH, all rights reserved. The technical data and the functional product characteristics can be subject
to modifications. The photocopying, the translation, and all other forms of copying of fragments or of the integral­ity of this user’s manual is prohibited.

22

NOTES:

NOTES:

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23

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Sie haben die richtige Wahl getroffen!

Diese LD-Systems Produkte werden Sie lange Jahre durch Zuverlässigkeit, Wirtschaftlichkeit und einfaches
Handling überzeugen. Dafür garantiert LD-Systems mit seinem Namen und seiner in vielen Jahren erworbenen
Kompetenz als Hersteller hochwertiger Geräte.

Nehmen Sie sich nun ein paar Minuten Zeit, diese Anleitung zu lesen. Wir möchten, dass Sie einfach
und schnell in den Genuss dieser Technik kommen.

Mehr Informationen zu LD-SYSTEMS finden Sie auf unserer Internetseite WWW.LD-SYSTEMS.COM

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24

LD LAX12D USB

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12 CHANNEL MIXER WITH DSP & USB MP3 PLAYER

B

S

U

R

E

AY

L

P

C

I

S

U

M

E

L

O

S

N

O

C

G

IN

IX

M

Q

E

Q

E

Q

E

Q

E

Q

E

Q

E

Q

E

Q

E

R

L

R

L

R

L

R

L

R

L

R

L

R

L

R

L

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25

VORSICHTSMASSNAHMEN:

1. Bitte beachten Sie die Sicherheitshinweise und studieren Sie diese Anleitung sorgfältig.

2. Bewahren Sie alle Hinweise und Anleitungen sicher auf.

3. Verwenden Sie das Gerät nur in der vorgesehenen Art und Weise.

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4. Beachten Sie die in Ihrem Land geltenden Entsorgungsgesetze. Trennen Sie bei der Entsorgung bitte Plastik

und Papier bzw. Kartonagen von einander.

5. Sollte Ihr Gerät nicht mehr ordnungsgemäß funktionieren, Flüssigkeiten ausgesetzt worden oder auf sonstige Art
und Weise beschädigt sein, überlassen Sie bitte jegliche Reparaturen ausschließlich autorisiertem Fachpersonal.

6. Halten Sie das Gerät von Hitzequellen wie z.B. Ofen, Heizkörper, oder sonstige Quellen (auch Verstärker) fern.

Sorgen Sie dafür dass das Gerät immer so installiert ist, dass es ausreichend gekühlt wird und nicht überhitzt.

7. Überprüfen Sie alle Verbindungen nach dem Sie das Gerät angeschlossen haben, um Schäden oder Unfälle zu
vermeiden.

8. Verwenden Sie ausschließlich stabile und passende Stative bzw. Befestigungen, wenn das Gerät fest installiert

wird. Stellen Sie sicher, dass das Gerät sicher installiert ist und nicht herunterfallen kann.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

ACHTUNG:

Entfernen Sie niemals die Abdeckung, da sonst die Gefahr eines elektrischen Schocks besteht.

Im Inneren des Gerätes benden sich keine Teile, die vom Bediener gewartet oder repariert werden können.

Lassen Sie Reparaturen ausschließlich von qualifiziertem Servicepersonal durchführen.

Dieses Symbol warnt vor nichtisolierten, gefährlichen Spannungen im Geräteinneren, die einen

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gefährlichen Schlag verursachen können.

Dieses Symbol kennzeichnet wichtige Bedienungs- und Wartungshinweise.

Vorsicht! Hohe Lautstärke!

Diese Übertragungsanlage wird von Ihnen professionell eingesetzt. Daher unterliegt der Gebrauch bei gewerbli-

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cher Nutzung den Regeln und Vorschriften der zuständigen Berufsgenossenschaft. Adam Hall als Hersteller ist

daher verpflichtet, Sie auf möglicherweise bestehende gesundheitliche Risiken ausdrücklich hinzuweisen.

26

FUNKTIONEN & ERSTE SCHRITTE:

EINFÜHRUNG

Wir freuen uns, dass Sie sich für ein Audioprodukt von LD Systems entschieden haben.

Der Mixer LAX12DUSB ist ein Kompaktmischer für den professionellen Einsatz, mit angenehmem, natürlichem
Klang und präziser Wiedergabe – ideal für Live-Auftritte, Aufnahmen und als festinstallierter PA-Mischer. Dabei
bietet der LAX12DUSB einige Features, die in dieser Preisklasse nicht selbstverständlich sind.

Die Mono-Kanalzüge zeichnen sich durch außerordentlich rauscharme Mikrofon-Preamps mit +48- Volt­Phantomspeisung aus. Darüber hinaus sind alle Kanalzüge mit warm und natürlich klingenden Equalizern

ausgestattet: die Mono-Kanalzüge mit 3-Band-EQs (MID: mit regelbaren Mittenfrequenzen) die Stereo-Kanalzüge
mit 4-Band-EQs mit festen Mittenfrequenzen. Außerdem verfügt der LAX12DUSB über eine hochpräzise Aus-

steuerungsanzeige (12 Segmente), 2-Track-Eingänge, die sowohl auf die Summenausgänge als auch auf die
Kopfhörer/Regie-Ausgänge geroutet werden können, und vieles mehr.

Zusätzlich stellt der integrierte 24-Bit-Effektprozessor 100 Effekt-Presets bereit.
Der LAX12DUSB-Mixer ist außerordentlich einfach zu bedienen. Dennoch empfehlen wir, diese Anleitung vor

Inbetriebnahme sorgfältig zu lesen, damit Sie wirklich das Optimum aus Ihrem Mixer herausholen.

FEATURES

Der LAX12DUSB-Mixer wurde für den professionellen Einsatz entwickelt und bietet folgende Ausstattung:

• Mikrofonkanäle mit vergoldeten XLR-Anschlüssen und symmetrischen Line-Eingängen

• Stereo-Kanalzüge mit symmetrischen Klinkeneingängen (TRS)

• Rauscharme, diskrete Mikrofon-Preamps mit +48-Volt-Phantomspeisung

• Hohe Aussteuerungsreserve und Dynamik

• Mono-Kanalzüge mit Inserts

• Schaltbare Trittschall lter in allen Mono-Kanalzügen

• +4dBu/-10dBV-Umschaltung in allen Stereo-Kanalzügen

• Warm und natürlich klingende 4-Band-Equalizer (feste Mittenfrequenzen) in den Stereo-Kanalzügen

• 3-Band-Equalizer (MID: regelbare Mittenfrequenz, 100 Hz – 8 kHz) in den Mono-Kanalzügen

• Peak-LEDs in allen Kanalzügen

• Mute/Alt3-4/Solo-Funktion in allen Kanalzügen

• 2 AUX-Returns als zusätzliche Eingänge

• Regie- und Kopfhörer-Ausgänge

• 2-Track-Eingänge mit Routing-Möglichkeiten auf Summen-, Regie- und Kopfhörer-Ausgänge

• Hochpräzise Aussteuerungsanzeige (12 Segmente)

• Integrierter digitaler 24-Bit-Effektprozessor

• 100 Effekt-Presets

• Effekt-Bypass-Funktion über MUTE-Taste oder Fußschalter (optional erhältlich, Anschluss an DFX FOOTS­WITCH-Buchse)

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27

FUNKTIONEN & ERSTE SCHRITTE:

• Überprüfen Sie vor Anschluss Ihres LAX12DUSB-Mixers, dass die Stromversorgung mit der für das Gerät geeigneten

Netzspannung erfolgt.

• Vergewissern Sie sich, dass der Mixer ausgeschaltet ist, bevor Sie ihn an das Stromnetz anschließen, und stellen Sie

alle Regler in “Null”-Stellung. Auf diese Weise vermeiden Sie Schäden an Ihren Lautsprechern durch laute

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Einschaltgeräusche und hohe Pegel.

• Schalten Sie immer zuerst den Mixer und danach den angeschlossenen Leistungsverstärker ein.´Beim Ausschalten gilt

die umgekehrte Reihenfolge: Schalten Sie zuerst den Leistungsverstärker und danach den Mixer aus.

• Schalten Sie den LAX12DUSB-Mixer stets aus, bevor Sie Verkabelungen vornehmen.

• Verwenden Sie zur Reinigung des LAX12DUSB keine Lösungsmittel, sondern ein sauberes, trockenes Tuch.
ein. Beim Ausschalten gilt die umgekehrte Reihenfolge: Schalten Sie zuerst den Leistungsverstärker und danach den

Mixer aus.

• Schalten Sie den LAX12DUSB-Mixer stets aus, bevor Sie Verkabelungen vornehmen.

• Verwenden Sie zur Reinigung des LAX12DUSB keine Lösungsmittel, sondern ein sauberes, trockenes Tuch.

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28

1

DIE MONOKANÄLE (MIC/LINE)

Die Mono-Kanalzüge bieten symmetrische XLR-Anschlüsse für niederohmige
Mikrofone und anderes Equipment mit niedrigem Pegel.
Zusätzlich stehen 6,3-mm-Klinkeneingänge für den Anschluss von Mikrofonen
und Geräten mit Line-Pegel (z.B. Synthesizer, Drum-Computer, Effektprozesso­ren etc.) zur Verfügung.
Achtung: Es ist nicht möglich, MIC- und LINE-Eingänge desselben Kanals
gleichzeitig zu belegen.
+48-VOLT-PHANTOMSPEISUNG
Die XLR-Eingänge der Mono-Kanalzüge stellen +48-Volt-Phantomspannung
zur Speisung von Kondensatormikrofonen bereit. Achtung:
Schließen Sie bei eingeschalteter Phantomspeisung niemals Mikrofone ohne
Phantomspeisung an die XLR-Eingänge an.

2

EINSTELLEN DER EINGANGSVERSTÄRKUNG

Der Gain-Regler verfügt über zwei unterschiedliche Einteilungen: eine für

Mikrofone und eine für Geräte mit Line-Pegel. Der äußere Ring (0 ~ 44 dB)
bezieht sich auf Mikrofone, der innere (+15 ~ -30 dB) auf Geräte mit Line-

Pegel. Stellen Sie den Gain-Regler stets so ein, dass die Peak-LED oberhalb
des Kanal-Faders nur gelegentlich aufleuchtet. Leuchtet die LED konstant,
kann dies zu Verzerrungen führen.

3

TRITTSCHALLFILTER (LOW CUT)

Die LOW CUT-Taste aktiviert ein Trittschall lter (75 Hz, Flankensteilheit 18 dB/

Oktave) zur Reduzierung von tieffrequenten Störgeräuschen wie Netzbrummen
oder Handgeräusche von Vokalmikrofonen.

BEDIENELEMENTE:

MIC 1

1

BAL OR
UNBAL

LINE IN 1

2

LINE

+15dB -25dB

MIC

0dB 40dB

3

4

LOW CUT

75Hz 18dB/Oct

LINE IN 19/20

LEFT(MONO)

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DIE STEREOKANÄLE

Die Stereo-Kanalzüge sind jeweils als Stereopaare mit 6,3-mm-Klinkeneingängen
(TRS) ausgeführt. Mono-Signalquellen schließen Sie an den linken Klinkeneingang
an.

5

+4dBu/-10dBV-UMSCHALTUNG

Die Line-Eingänge der Stereo-Kanalzüge verfügen über eine Taste zur

Umschaltung der Eingangsemp ndlichkeit (+4 dBu für professionelles Audio­Equipment, -10 dBV für HiFi-Geräte etc.). Falls Sie nicht sicher sind, welche

Einstellung für das jeweils angeschlossene Gerät geeignet ist, versuchen Sie

es zuerst mit +4 dBu. Sollte der Pegel nicht hoch genug sein, schalten Sie auf

-10 dBV um.

6

AUX SENDS

Über diese 6,3-mm-Klinkenbuchsen kann das Signal gesplittet und zusätzlich
an externe Effektprozessoren o.Ä. überführt werden. Darüber hinaus bieten
sich diese Ausgänge als Submix-Ausgänge an.

RIGHT

5

6

-10dBV

AUX SENDS

1

2

+4dBu

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7

PHONE

29

BEDIENELEMENTE:

7

PHONE

An diese Klinkenbuchse schließen Sie den Kopfhörer zur Überwa-

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chung des Ausgangssignals (MAIN MIX) an.
EQUALIZER

Die Mono-Kanalzüge des LAX12D sind 3-Band-Equalizern (HI/
MID/LOW; MID: mit regelbaren Mittenfrequenzen), die Stereo­Kanalzüge mit 4-Band-EQs mit festen Mittenfrequenzen (HI, HI-

MID, MID-LOW und LOW) ausgestattet. Der Regelbereich beträgt

jeweils +/-15 dB.

8

HI

Über diesen Regler steuern Sie die hohen Frequenzen, d.h. Sie

können dem entsprechenden Signal mehr Brillanz und Präsenz

verleihen oder unerwünscht laute hohe Frequenzen absenken

(Regelbereich -15 dB bis +15 dB, Mittenfrequenz 12 kHz).

9

MID

Über diesen Regler steuern Sie die mittleren Frequenzen, die
wichtigsten Frequenzen für Musikinstrumente und die menschli-

che Stimme (Regelbereich -15 dB bis +15 dB).

Über den zugehörigen FREQ-Regler bestimmen Sie die anzuhe­bende bzw. abzusenkende Mittenfrequenz (100 Hz bis 8 kHz).

10

HI-MID

Über diesen Regler steuern Sie die Hochmitten, die etwas
oberhalb der Frequenzen des MID-EQs liegen. Diese Einstellungs­möglichkeit
bietet noch mehr Flexibilität bei der detaillierten Entzerrung der
wichtigen mittleren Frequenzen.

11

MID-LOW

Über diesen Regler steuern Sie die Tiefmitten (Regelbereich -15

dB bis +15 dB, Mittenfrequenz 500 Hz).

12

LOW

Über diesen Regler steuern Sie die tiefen Frequenzen, d.h. Sie

können z.B. einer Bassdrum, Bassgitarre oder männlichen Stimme
mehr Fundament verleihen (Regelbereich -15 dB bis +15 dB,

Mittenfrequenz 80 Hz).

8

10

9

11

12

13

14

15

16

17

KAEPKAEP

10

dB

5

0

-5

-10

18

-15

-20

-30

-40

-60

OO

10

dB

5

0

-5

-10

-15

-20

-30

-40

-60

O

O

30