LD LAX5 is a compact mixer to help you to give professional sound to your events, recordings, or installations. It is very easy to use. Some of its capabilities include:
- Mixing mono and stereo inputs
- Adding EQ to the mono input
- Recording and playing back audio using the 2-track in- and outputs
- Connecting to external devices like amplifiers, powered speakers, or headphones
- Monitoring audio levels using the 4-segment VU meters
LD LAX5 is a compact mixer to help you to give professional sound to your events, recordings, or installations. It is very easy to use. Some of its capabilities include:
- Mixing mono and stereo inputs
- Adding EQ to the mono input
- Recording and playing back audio using the 2-track in- and outputs
- Connecting to external devices like amplifiers, powered speakers, or headphones
- Monitoring audio levels using the 4-segment VU meters
c
Adam Hall GmbH
Tel: (+49) 6081 / 9419-0 Fax: (+49) 6081 / 43280
www.adamhall.com
All rights reserved to Adam Hall. All features and content might be changed
without prior notice. Photocopying, translation, or reproduction of any part of this
manual without written permission is forbidden. Copyright 2007 Adam Hall GmbH
WWW.LD-SYSTEMS.COM
LAX 5
USERS’ MANUAL
www.ld-systems.com
USERS’ MANUAL
LAX 5
5-CHANNEL MIXER
LD-Systems Page 2
IMPORTANT!
Please read this manual carefully before operating
this unit for the first time.
All rights reserved to Adam Hall GmbH. All features and content might be changed
without prior notice. Photocopying, translation, or reproduction of any part of
this manual without written permission is forbidden.
LD-Systems Page 15
NOTES:
LD-Systems Page 14
NOTES:
LD-Systems Page 3
SAFETY RELATED SYMBOLS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol, wherever used, alerts you to the pre-
sence of un-insulated and dangerous voltages with-
in the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.
Protective Ground Terminal
AC mains (Alternating Current)
Hazardous Live Terminal
ON: Denotes the product is turned on.
This symbol, wherever used, alerts you to impo-
rtant operating and maintenance instructions.
Please read.
OFF: Denotes the product is turned off.
WARNING
Describes precautions that should be observed to
prevent the possibility of death or injury to the user.
CAUTION
Describes precautions that should be observed to
prevent damage to the product.
- Protective Ground
- Operating Conditions
IMPORTANT SAFETY INSTRUCTIONS
- Cleaning
- Servicing
- Power Cord and Plug
the recommended fuse type as indicated in this
manual. Do not short-circuit the fuse holder. Before
replacing the fuse, make sure that the product is
OFF and disconnected from the AC outlet.
Before turning the product ON, make sure that it is
connected to Ground. This is to prevent the risk of
electric shock.
Never cut internal or external Ground wires. Likewise,
never remove Ground wiring from the Protective
Ground Terminal.
Always install in accordance with the manufacturer's
instructions.
To avoid the risk of electric shock and damage, do
not subject this product to any liquid/rain or moisture.
Do not use this product when in close proximity to
water.
Do not install this product near any direct heat source.
Do not block areas of ventilation. Failure to do so
could result in fire.
Keep product away from naked flames.
Read these instructions
Follow all instructions
Keep these instructions. Do not discard.
Heed all warnings.
Only use attachments/accessories specified by the
manufacturer.
Do not tamper with the power cord or plug. These are
designed for your safety.
Do not remove Ground connections!
If the plug does not fit your AC outlet seek advice from
a qualified electrician.
Protect the power cord and plug from any physical
stress to avoid risk of electric shock.
Do not place heavy objects on the power cord. This
could cause electric shock or fire.
When required, either blow off dust from the product
or use a dry cloth.
Do not use any solvents such as Benzol or Alcohol.
For safety reasons, keep product clean and free
from dust.
Refer all servicing to qualified service personnel only.
Do not perform any servicing other than the instruc-
tions contained within this Manual.
- Fuse
To prevent fire and damage to the product, only use
No user serviceable parts inside.
- Power Supply
Ensure that the mains source voltage (AC outlet)
matches the voltage rating of the product. Failure
to do so could result in damage to the product and
possibly the user.
Unplug the product before electrical storms occur
and when unused for long periods of time to reduce
the risk of electric shock or fire.
- External Connection
Always use proper ready-made insulated mains
cabling (power cord). Failure to do so could result
in shock/death or fire. If in doubt, seek advice from
a qualified electrician.
- Do Not Remove Any Covers
There are areas within the product where high
voltages may be present. To reduce the risk of
electric shock do not remove any covers unless
the AC mains power cord is removed.
Covers should be removed by qualified service
personnel only.
WARNING
This product should not be disposed in
municipal waste and should be collected
separately.
~
LD-Systems Page 4
TABLE OF CONTENTS
1. INTRODUCTION
2. FEATURES
3. GETTING STARTED
4. CONTROL ELEMENTS
5. INSTALLATION AND CONNECTION
6. BLOCK DIAGRAMM
7. TECHNICAL SPECIFICATIOS
LD-Systems Page 13
7. TECHNICAL SPECIFICATIONS
Frequency Response
Input Gain Conrol Range
Equalization
Mixer Rated Output
Mic Input to any Output (Trim at 0 dB)
+0, -1 dB
-3 dB
THD and SMPTE IMD
10 Hz to 150 kHz
Mic Input to Main Output <0.005% @+4 dBu output
20 Hz to 20 kHz BW (150 Ohm source impedance)
Equivalent Input Noise (EIN) -129 dBu
Residual Output Noise
Mic In 60 dB@1 kHz, Gain@ maximum
Adjacent Inputs or Input to Output -90 dB@1 kHz
0 dB to 50 dB
Main, Phones -106 dBu
10 Hz to 200 kHz
Distortion
20 Hz to 20 kHz
Noise
CMRR
Crosstalk
High +/-15 dB@12 kHz
Low +/-15 dB@80 Hz
Maximum Rated Output +22 dBu
Maximum Input Levels
Mic Input +12 dBu, Gain @+10 dB
Line Input +30 dBu, Gain @+10 dB
Tape Input +22 dBu
Input Impedance
2.6 k , balancedOhms
Mic Input
Line Input 20 k , balancedOhms
CD/Tape In 24 k , unbalancedOhms
Output Impedance
Main 240 , balanced; 120 , unbalancedOhms Ohms
Tape Output 1 kOhm
Phones Output 25 Ohms
VU Meters
Main Left and Right (4-segment) Clip (+18), +6, 0, -20 (0 LED=0 dBu)
AC Power Requirements
External Power Supply Ourput 18.5 VAC¡2@150 mA (3-pin AC power connection
External Power Supply AC Input
U.S. 120 VAC, 60 Hz
Europe 240 VAC, 50 Hz
Japan 100 VAC, 50/60 Hz
Korea 220 VAC, 60 Hz
Physical
Dimensions ( W H x x D) 41 x 133 x 203 mm
LD-Systems Page 12
6. BLOCK DIAGRAMM
LD-Systems Page 5
1. INTRODUCTION
Thank you for expressing your confi dence in our products by buying the LAX5 mixer. The LAX5 is a
compact mixer for professional use. Its smooth, accurate and natural sounding sound characteris-
tics make it ideal for smaller events, recordings or installations.
The LAX5 Mixer is extermely easy to use. We nonetheless advise you to study this manual carefully,
this way you will get the most out of your LAX5 mixer.
2. FEATURES
The LAX5 mixer provides the following features
- One mono input with XLR and TRS inputs
- Two Stereo inputs with balanced TRS sockets
- A 2-Band EQ for the mono input
- 2 track in- and outputs
- Balanced output with TRS sockets
3. GETTING STARTED
3.1 Please check the AC voltage available in your country before connecting your LAX5 to the AC
socket.
3.2 Be sure that the main power switch is turned off before connecting the mixer to the AC socket.
You should also make sure that all input and output controls are turned down. This will avoid dam-
age to your speakers and avoid excessive noise.
3.3 If you have an amplifi er connected to the main outputs of the LAX5, make sure to fi rst turn on the
LAX5 and then the amplifi er. When fi nished working, fi rst turn off the amplifi er and then the LAX5.
3.4 Before disconnecting the LAX5 always turn-off the power switch.
3.5 Do not use solvents to clean your LAX5. A dry and clean cloth is suffi cient..
LD-Systems Page 6
4. CONTROL ELEMENTS - LAX5
LD-Systems Page 11
XLR Type Unbalanced XLR Type alanced B
Pin3 (-)
Pin2 (+)
Pin1 ( )
(Linked to Pin1 manually, )
Pin1 ( )
Pin2 (+)
Pin3 (-)
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Ring
Sleeve
1
2
3
1
2
3
1
2
3
TIP RING SLEEVE SLEEVE RING TIP
TIP RING SLEEVE
21
3
12
3
12
3
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Ring
Sleeve
1
2
3
1
2
3
1
2
3
TIP RING SLEEVE SLEEVE RING TIP
TIP RING SLEEVE
21
3
12
3
12
3
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Sleeve
Tip
Sleeve
Tip
Sleeve
Cent er
Cent er
Centre
Screen
Screen
Screen
1
2
3
Tip
Ring
Sleeve
1
2
3
1
2
3
TIP SLEEVE
TIP SLEEVE
TIP RING SLEEVE
TIP RING SLEEVE
12
3
21
3
21
3
Tip
Ring
Sleeve
1
2
3
Tip
Sleeve
1
2
3
TIP RING SLEEVE
TIP SLEEVE
12
3
12
3
SLEEVE TIP
SLEEVE RINGTIP
- For XLR connector
For these applications the unit provides 1/4" TRS and XLR connectors to easily interface with most
professional audio devices. Follow the configuration examples below for your particular connection.
Unbalanced
- In-line Connection
Balanced
TRS Type Unbalanced
Sleeve
Tip
+
TRS Type Balanced
Tip
Ring Sleeve
+
-
TRS Type Unbalanced
Tip
Ring Sleeve
+
- For 1/4” Phone jack
LD-Systems Page 10
5. INSTALLATION AND CONNECTION
Now that you have a rough idea of the mixers functions you should be able to operate it. However,
we strongly recommend you read the following section carefully as it contains a number of useful
tips on how to operate the mixer correctly.
- Make sure the input- and master levels of the LAX5 are turned down before you connect micro-
phones and instruments to the inputs.
- Properly connect all external devices such as mics, power amplifi ers, speakers, effects processor
etc.
- Be sure to lay the cables safely to avoid injury or damage to your equipment.
- Set the output level of your mixer or the connected power amplifi er to no more than 75%.
- Set the PHONES level to no more than 50%.
- Position HI and LOW EQ controls on middle position.
- Position the panorama and balance (PAN/BAL) controls in center position.
- While speaking/singing into the mic (or playing the instrument), adjust the channel Level control so
that the channel PEAK LED (in the case of the fi rst channel) will blink occasionally, in this way you
will maintain good headroom and an ideal dynamic range.
- You can shape the tone of each channel by adjusting the equalizer controls as desired.
- Now repeat the same sequence for all other input channels. Keep an eye on the main LED chain
and make sure it does not move up too far into the red section.
5.1 AUDIO CONNECTIONS
For maximum fl exibility both XLR and 1/4 “ TRS connectors are available on this unit. There are a
number of ways to connect your equipment. Read the following chapter to learn more.
Wiring confi guration
Either the 1/4” TRS phone jack or XLR connectors can be wired in balanced and unbalanced modes,
depending on the equipment used. Please see the following examples on how to wire up your sys-
tem:
LD-Systems Page 7
4.1 - THE MONO CHANNEL
You can connect balanced low impedance mirophones or a low
level signal to the XLR socket. On the 1/4” line jack you can con-
nect line level instruments such as drum computers, synthesizers,
effects processors or any other line level devices.
Note: It is not possible to use both inputs simultaneously
4.2 - ADJUSTING THE INPUT LEVEL (GAIN)
Adust this level so that the peak LED lights up occasionally, the
peak LED should not be lit constantly, in this case your signal may
be distorted.
4.3 - 2-BAND EQ
The fi rst channel of the mixer is equipped with a simple 2 Band EQ
for adjusting the sound.
HI
This is the Treble control. It can be used to eliminate unwanted high
frequencies or to give your signal mor brilliance and presence. It
ranges from -15dB to +15dB with a center frequency of 12kHz.
LOW
This is the bass control. It can be used to boost a male voice, a kick-
drum or a bass guitar. The gain ranges from -15dB to +15dB with a
center frequency at 80Hz.
4.4 - PAN / BAL
The fi rst channel of the LAX5 has a PAN control wheras the other
two stereo cahnnels have a balance control. Both controls are used
to to distribute the incomming signal across the left and right chan-
nel of the main output.
4.5 - PEAK-LED
The fi rst channel of the LAX5 is equipped with a peak LED. It lights
up, when the signal is about to distort (6 dB below actually distort-
ing). When this LED is lit it means, that the maximal level has been
reached.
4.6 - LEVEL
Here you can adjust the volume of the cannel and consequently the
level of the signal which is passed on to the main mix.
4.7 - THE STEREO CHANNELS
The stereo channels are counfi gured as stereo pairs with TRS jack
inputs. Connect mono signals to the left input.
4.8 - MAIN MIX
Herewith you can adjust the overall level of the signal that is sent to
the main outputs and to the tape output.
1
2
3
4
5
6
LD-Systems Page 8
4
6
4.9 - PHONES
Here you can adjust the level of the signal sent to the phones output
4.10 - LED-METER
This 4-segment display helps you monitor the overall level of the main mix. The red OL LEDs should
only light up occasionally.
4.11- CD/TAPE INPUT
This unbalanced cinch input can be used to connect a CD player of other stereo devices. You can
route the incomming signal to the main mix or to the headphones.
4.12 CD/TAPE OUTPUT
Here you can connect a stereo recording device such as a tape deck in order to record the mix. The
signal is the same as that of the main mix.
4.13 - TAPE TO PHONES SWITCH
Pressing this switch will route the CD/TAPE INPUT signal to the headphones.
4.14 - TAPE TO MIX SWITCH
Pressing this switch will route the CD/TAPE INPUT signal to the Main Mix.
7
8
9
10
11
12 13 14
LD-Systems Page 9
4.15 PHONES
Connect headphones to this socket in order to monitor the main mix
4.16 MAIN MIX OUTPUT
These are the output connectors for the Main Mix. Connect this output to an amplifi er or active PA
system
4.17 POWER CONNECTION (REAR)
This is the power connector for the LAX5, please only use the supplied adaptor with the LAX5
15
16
LAX5
17
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
LD LAX5 is a compact mixer to help you to give professional sound to your events, recordings, or installations. It is very easy to use. Some of its capabilities include:
- Mixing mono and stereo inputs
- Adding EQ to the mono input
- Recording and playing back audio using the 2-track in- and outputs
- Connecting to external devices like amplifiers, powered speakers, or headphones
- Monitoring audio levels using the 4-segment VU meters
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