Lab.gruppen Lake LM 26 Manuale utente

Lake® LM 26

Digital Audio Loudspeaker Processor

Rev 1.1.8

Item: OM-LM26

Operation Manual

Important Safety Instructions

LM 26 Operation Manual rev 1.1.8

1. Important Safety Instructions

Before using the device, be sure to carefully read the Safety Instructions. Keep this document with the device at all times.

1.1 Important Safety Instructions

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance

with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat

registers, stoves, or other apparatus (including ampliers)

that produce heat.

9. Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized plug has two blades with

one wider than the other. A grounding-type plug has two

blades and a third grounding prong. The wide blade or

the third prong is provided for your safety. If the provided

plug does not t into your outlet, consult an electrician for

replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched,

particularly at plugs, convenience receptacles, and the point

where they exit from the apparatus.

11. Only use attachments/accessories specied by the

manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specied

by the manufacturer, or sold with the apparatus. When a

cart is used, use caution when moving the cart/apparatus

combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when

unused for long periods of time.

14. Refer all servicing to qualied service personnel. Servicing

is required when the apparatus has been damaged in any

way, such as power-supply cord or plug is damaged, liquid

has been spilled or objects have fallen into the apparatus, the

apparatus has been exposed to rain or moisture, does not

operate normally, or has been dropped.

15. Use the mains plug to disconnect the apparatus from the

mains.

16. WARNING: To reduce the risk of re of electric shock, do not

expose this apparatus to rain or moisture.

17. Do not expose this equipment to dripping or splashing and

ensure that no objects lled with liquids, such as vases, are

placed on the equipment.

18. The mains plug of the power supply cord shall remain readily

operable.

19. Do not connect the unit’s output to any other voltage source,

such as battery, mains source, or power supply, regardless

of whether the unit is turned on or off.

20. Do not remove the top (or bottom) cover. Removal of the

cover will expose hazardous voltages. There are no user

serviceable parts inside and removal may void the warranty.

21. An experienced user shall always supervise this professional

audio equipment, especially if inexperienced adults or

minors are using the equipment.

22. The US National Differences clause 16.3 requires that

network cables must be ame rated VW-1.

To prevent electric shock do not remove top or bottom covers.

No user serviceable parts inside, refer servicing to qualied

service personnel.

À prévenir le choc électrique n’enlevez pas les couvercles. Il n’y a

pas des parties serviceable à l’intérieur, tous reparations doit etre

faire par personnel qualié seulment.

To completely disconnect this equipment from the AC mains,

disconnect the power supply cord plug from the AC receptacle.

The mains plug of the power supply cord shall remain readily

operable.

Pour démonter complètement l’équipement de l’alimentation

générale, démonter le câble d’alimentation de son réceptacle. La

prise d’alimentation restera aisément fonctionnelle.

1.2 Standards

This equipment conforms to the require-

ments of the EMC Directive 2004/108/EC

and the requirements of the Low Voltage

Directive 2006/95/EC.

Standards applied: EMC Emission

EN55103-1, E3

EMC Immunity EN55103-2, E3, with S/N

below 1% at normal operation level.

Electrical Safety EN60065, Class I

This equipment is tested and listed accord-

ing to the U.S. safety standard ANSI/ UL

60065 and Canadian safety standard CSA

C22.2 NO. 60065. Intertek made the tests

and they are a Nationally Recognized Test-

ing Laboratory (NRTL).

1.3 Explanation of Graphical Symbols

The lightning bolt triangle is used to alert the user to

the presence of un-insulated “dangerous voltages”

within the unit’s chassis that may be of sufcient

magnitude to constitute a risk of electric shock to

humans.

The exclamation point triangle is used to alert the

user to presence of important operating and service

instructions in the literature accompanying the

product.

Important Safety Instructions

LM 26 Operation Manual rev 1.1.8

1.4 WARNING

To reduce risk of re or electric shock, do not expose this apparatus to rain or moisture.

Pour réduire les risques de blessure ou le choc électrique, n’exposez pas l’appareil à la pluie ou à l’humidité.

Do not expose this system/apparatus to dripping or splashing and ensure that no objects lled with liquids, such

as vases, are placed on the apparatus.

L’appareil ne doit pas être exposé à des egouttements d’eau ou des éclaboussures et de plus qu’aucun objet

rempli de liquide tel que des vases ne doit pas être placé sur l’appareil.

This apparatus must be connected to a mains socket outlet with a protective earthing connection.

Cet appareil doi t être raccordé á une prise de courant qui est branchée à la terre.

The mains plug is used as a disconnect device and shall remain readily operable.

Lorsque la prise du réseau d’alimentation est utilisés comme dispositif de déconnexion, ce dispositif doit

demeuré aisément accessible.

1.5 CAUTION

To reduce the risk of re or electric shock, do not remove screws. No user-serviceable parts inside.

Refer servicing to qualied service personnel.

Pour réduire le risque d’incendie ou de choc électrique, ne pas retirer les vis. Aucune pièce réparable par

l’utilisateur. Coner l’entretien àpersonnel qualié.

1.6 FCC Compliance Notice (Radio Interference)

A sample of this product has been tested and complies with the limits for the European Electro Magnetic

Compatibility (EMC) directive. This equipment has also been tested and found to comply with the limits for a

Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference from electrical equipment. This product uses radio frequency energy

and if not used or installed in accordance with these operating instructions, may cause interference to other

equipment, such as radio receivers.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment

does cause harmful interference to radio or television reception, which can be determined by turning the

equipment on and off, the user is encouraged to try to correct the interference by one or more of the

following measures:

▸Reorient or relocate the antenna.

▸Increase the separation between the equipment and receiver.

▸Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

Important Safety Instructions

iii

LM 26 Operation Manual rev 1.1.8

▸Check if the affected unit complies with the EMC limits for immunity, (CE-labeled). If not, address the

problem with the manufacturer or supplier. All electrical products sold in the EC must be approved for

immunity against electromagnetic elds, high voltage ashes, and radio interference.

▸Consult the dealer or an experienced radio/TV technician for help.

1.7 User Responsibility

1.7.1 Mains Connection Grounding

Your apparatus must be connected to a grounded socket outlet.

1.7.2 Maintenance

For safe and reliable operation, the dust lter on the right-hand side air intake should be removed and

cleaned regularly to ensure maximum airow through the device.

If the dust lter is not maintained there will be safety risks; for example, high internal temperatures

could ignite the dust start a re. There is also a risk that the unit will malfunction since it is dependent on

constant airow from left to right. If the dust lter is not clean and the unit malfunctions, any resulting

problems will not be covered by the warranty.

LM 26 Operation Manual rev 1.1.8

Table of Contents

1. Important Safety Instructions ................................................................................................................i

1.1 Important Safety Instructions ............................................................................................................... i

1.2 Standards .............................................................................................................................................. i

1.3 Explanation of Graphical Symbols ......................................................................................................... i

1.4 WARNING ............................................................................................................................................ ii

1.5 CAUTION ............................................................................................................................................. ii

1.6 FCC Compliance Notice (Radio Interference) ....................................................................................... ii

1.7 User Responsibility ..............................................................................................................................iii

2. Welcome ...................................................................................................................................................1

2.1 Introduction .........................................................................................................................................1

2.2 Main Features ......................................................................................................................................1

2.3 Additional Documentation ....................................................................................................................2

3. Installation ................................................................................................................................................3

3.1 Unpacking ............................................................................................................................................3

3.2 Mounting ..............................................................................................................................................3

3.3 Cooling ................................................................................................................................................. 3

3.4 Operating Voltage ................................................................................................................................4

3.5 Grounding .............................................................................................................................................4

4. Product Overview ....................................................................................................................................5

4.1 Front Panel Overview ........................................................................................................................... 5

4.2 Back Panel Overview ...........................................................................................................................7

5. Signal Flow and Lake Processing ........................................................................................................10

5.1 Signal Flow ........................................................................................................................................ 10

5.2 Lake Processing and Control .............................................................................................................. 11

5.3 Modules and Frames ........................................................................................................................ 11

5.4 Loudspeaker Crossover Conguration Overview ............................................................................... 12

5.5 Files and Presets ................................................................................................................................ 12

6. Front Panel Interface ............................................................................................................................. 14

6.1 Overview ............................................................................................................................................ 14

6.2 Front Panel Key Lock .......................................................................................................................... 15

6.3 Power Button .................................................................................................................................. 15

6.4 Meter Button ..................................................................................................................................... 15

6.5 Menu Button ...................................................................................................................................... 16

6.6 Exit Button ........................................................................................................................................ 16

6.7 Dynamic Buttons, Controls and LEDs ................................................................................................ 16

6.8 Module I/O Mute Buttons and LED Meters ....................................................................................... 19

6.9 Meter Mode .......................................................................................................................................20

6.10 Menu Mode .......................................................................................................................................21

LM 26 Operation Manual rev 1.1.8

7. Back Panel Interface ..............................................................................................................................38

7.1 Analog Inputs and Outputs ................................................................................................................38

7.2 AES3 Digital I/O ................................................................................................................................40

7.3 RJ45 etherCON® Network Connections ............................................................................................42

7.4 GPIO Connection ...............................................................................................................................43

7.5 Universal Power Supply Connection .................................................................................................44

8. Appendix .................................................................................................................................................45

8.1 Faults and Warnings Overview ..........................................................................................................45

8.2 Maintenance ......................................................................................................................................46

8.3 Factory Default Settings.....................................................................................................................46

8.4 Glossary of Terms, Acronyms and Abbreviations .............................................................................. 47

9. Application Guide ..................................................................................................................................50

9.1 Gain Structure ....................................................................................................................................50

9.2 Gain / Level Optimization ................................................................................................................... 51

9.3 Digital Audio Connections .................................................................................................................. 51

9.4 Digital Clock Conguration .................................................................................................................53

10. Technical Specications .......................................................................................................................56

11. Warranty and Support ..........................................................................................................................57

11.1 General ..............................................................................................................................................57

11.2 International Warranties .....................................................................................................................57

11.3 Technical Assistance and Service ......................................................................................................57

11.4 Trademarks .........................................................................................................................................58

Welcome

LM 26 Operation Manual rev 1.1.8

2. Welcome

2.1 Introduction

Thank you for choosing the Lake LM 26. We are condent that you will be pleased with the performance,

unique features, conguration exibility, reliability, and long-term durability offered by this product.

For fast installation and use of this product, your welcome package includes a printed copy of the LM 26

Quick Start and Field Reference Guide which contains the information required to safely install the product

and place it in service. Control and editing features are accessible via the front panel interface or via the

included Lake Controller software.

It is recommend that the Quick Start Guide and all product documentation on the included CD-ROM is

reviewed to ensure familiarity with the various conguration and control options.

Thank you again for placing your condence in Lake products.

2.2 Main Features

The Lake LM 26 incorporates a number of sophisticated technologies to ensure the best possible perfor-

mance and many years of reliable operation. The following section summarizes the benets of each feature;

additional information is available in the reference manuals.

2.2.1 Lake Processing and Controller

The Lake LM 26 integrates seamlessly into the Lake Processing environment. Two processing modules

offer precise settings for gain, delay, crossover settings, equalization and limiting. Lake processing features

incorporated in each module include Raised Cosine Equalization™, linear phase crossovers, and LimiterMax™

loudspeaker protection. The Super Module feature allows hardware processing modules in two or more

separate devices to function as a single module in the Lake Controller software. Please refer to the

Lake Controller Operation Manual for further information.

2.2.2 Lake Analyzer Bridge

Lake Controller software provides integration with third-party real-time analyzers, providing simultaneous

measurement display and EQ adjustment via the Lake Controller.

The third-party measurement tools that can be integrated via the Analyzer Bridge include:

▸Smaart Live Version 5.4

▸Live-Capture Light / Live-Capture Pro

Welcome

LM 26 Operation Manual rev 1.1.8

Smaart, distributed and supported by Rational Acoustics, provides real-time sound system measurement,

optimization and control. Smaart combines several powerful audio frequency measurement and analysis

tools.

Live-Capture, created by WaveCapture, offers easy-to-use software and measurement tools for sound

engineers, installers, consultants and designers. The Lake Analyzer Bridge in conjunction with Live-Capture

Light provides a completely free spectrum analyzer via your Lake Controller software interface.

2.2.3 Dante™ Audio Network

The Lake LM 26 includes Dante digital audio networking as standard. Utilizing the latest advances in Eth-

ernet technology, Dante offers simplied system conguration and extremely low latency while delivering

very high quality uncompressed digital audio across the Lake network. The Zen™ automatic conguration

feature enables plug-and-play setup without third-party DHCP or DNS servers. Dante is compatible with

high-bandwidth networks, allowing large numbers of audio channels to be distributed alongside control and

analyzer data.

2.3 Additional Documentation

This document, the Lake LM 26 Operation Manual, serves as the primary reference source for detailed

information on the installation and operation of the Lake LM 26. It also provides detailed information on

set-up and conguration using the front-panel interface.

If you intend to use the device as part of a networked system, or access features via the Lake Controller,

please refer to the various supporting documents which can be located via these methods:

▸Start > Programs > Lake Controller > Documentation (after installing Lake Controller software)

▸On the Installer CD-ROM or the downloaded software installer

▸Online at: http://labgruppen.com/index.php/products/documentation/

Installation

LM 26 Operation Manual rev 1.1.8

3. Installation

3.1 Unpacking

Carefully open the shipping carton and check for any damage to the device or the supplied accessories.

Every Lake product is tested and inspected before leaving the factory and should arrive in perfect condition.

If any damage is discovered, please notify the shipping company immediately. Only the consignee may

initiate a claim with the carrier or their insurers for damage incurred during shipping. Save the carton and

packing materials for the carrier’s inspection.

In addition to the Lake LM 26, the shipping carton include the following items:

▸Lake LM 26 Quick Start and Field Reference Guide

▸AC mains lead (IEC power cable) with locking connector

▸AES break-out cable (4-in, 8-out)

▸Software Installer and Documentation CD-ROM

Please keep the original carton and associated packaging to facilitate shipping of the device should the need

arise.

3.2 Mounting

Airow for cooling the LM 26 is from side to side (right-side intake to left-side fan). Please ensure there is

sufcient space each side of the unit to allow airow; the space provided by standard rack-rails should be

sufcient. This device has no top or bottom vents and therefore may be stacked directly on top of each

other.

Sufcient space should be available at the front of the rack to accommodate the handles, and at the rear to

accommodate connectors and cables; allowance must be made for cable or loom bends within a rack.

3.3 Cooling

The Lake LM 26 uses a forced-air cooling system, with airow from right to left. The dust lter on the air

intake (right-side) should be regularly cleaned, especially after exposure to dusty environments, to ensure

the maximum possible airow through the unit.

The LM 26 is designed to operate in situations where the ambient temperature is below 55 oC (131 oF ).

Automatic actions and warnings occur at following temperature thresholds:

▸At 40 oC (104 oF )or less, the fan is OFF

▸At more than 40 oC (104 oF ) the fan is ON

Installation

LM 26 Operation Manual rev 1.1.8

▸At 55 oC (131 oF ) a temperature warning is indicated on the front panel as ‘TEMP WARNING’ and in the

Controller Event Log as ‘Temp warning: DSP area’.

▸At 70 oC (158 oF ) the LM 26 has exceeded the maximum normal operating temperature. This fault is

indicated on the front panel as ‘OVERTEMP’ and in the Controller Event Log as ‘Temp fault: DSP area’.

The Processor will NOT mute or shut down when the

temperature reaches or exceeds 70 oC (158 oF), however,

sustained performance at this temperature cannot be

guaranteed.

3.4 Operating Voltage

The label above the GPIO connector, and to the left of the mains (AC) connector indicates the AC mains

voltage range for which the LM 26 is approved.

The LM 26 utilizes a universal power supply, and will operate within the range 70-265V~50-60Hz : 30W. If

the plug on the IEC cable provided is not appropriate for your country, a locally-sourced IEC cable with the

appropriate molded plug should be used.

Once a suitable AC power supply is connected, the device can be turned on using the front panel power

button. When turned on, a diagnostic routine is performed and the power button LED changes from red

(Standby) to green (Active).

3.5 Grounding

Analog inputs and outputs feature Iso-Float™ ground isolation, a technology which combines the benets of

transformer-coupled isolation with the advantages of clean, direct-coupled inputs and outputs.

The audio converters are galvanically isolated, and not connected to the main ground. High-speed transform-

ers and opto-isolators create a barrier between the device and the outside electrical environment.

The Iso-Float feature is activated by default, but

may be disabled via the Lake Controller software,

or via the front panel menu.

Use correctly-shielded balanced audio input connections to minimise hum and interference. Please refer to

section 7.1.5 for further information.

NEVER disconnect the earth (ground) pin on the mains cable (AC power cord).

Indice

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