L-Acoustics P1 Manuale utente

user manual (EN)

Document reference: P1 user manual (EN) version 2.1

Distribution date: October 19, 2018

No part of this publication may be reproduced or transmitted in any form or by any means without the

express written consent of the publisher.

Contents

Safety................................................................................................................................................................ 6

Important safety instructions....................................................................................................................... 6

Symbols................................................................................................................................................... 7

System components.............................................................................................................................................9

Technical description......................................................................................................................................... 10

Main features......................................................................................................................................... 10

Internal components.......................................................................................................................10

Front and rear panels....................................................................................................................10

Signal processing....................................................................................................................................11

Signal inputs.................................................................................................................................11

Measurement and tuning............................................................................................................... 11

DSP architecture............................................................................................................................12

Signal outputs............................................................................................................................... 13

Power supply..........................................................................................................................................13

Monitoring and control............................................................................................................................13

User interface............................................................................................................................... 13

L-NET remote control network......................................................................................................... 13

Preventive maintenance..................................................................................................................................... 14

CHK - External structure...........................................................................................................................14

CHK - Network functionalities and rmware.............................................................................................. 14

Installation........................................................................................................................................................15

Mounting................................................................................................................................................15

Ventilation.............................................................................................................................................. 15

Connecting to AC mains......................................................................................................................... 16

Electrical specications.................................................................................................................. 16

Power cord...................................................................................................................................16

Plugging to AC mains................................................................................................................... 16

Power consumption........................................................................................................................16

Audio and network cabling..................................................................................................................... 17

Connection panels.........................................................................................................................17

Cabling example...........................................................................................................................19

General Purpose I/O (GPIO)................................................................................................................... 20

Operation........................................................................................................................................................ 21

Powering on/off..................................................................................................................................... 21

Parameters accessible only from LA Network Manager...............................................................................21

Using the interface..................................................................................................................................22

Unlocking the display..............................................................................................................................22

Using the main screen.............................................................................................................................23

Conguration information...............................................................................................................23

DSP indicators.............................................................................................................................. 23

IP address.................................................................................................................................... 24

Level meters and mute................................................................................................................... 25

Time-alignment.............................................................................................................................. 26

Automatic input fallback................................................................................................................ 27

Using the input/output pages...................................................................................................................30

Stacked views...............................................................................................................................32

Mute............................................................................................................................................ 32

Gain............................................................................................................................................ 33

Polarity.........................................................................................................................................34

Signal status (AES and AVB)..........................................................................................................34

Mapping (AVB).............................................................................................................................37

Mic/Line settings...........................................................................................................................38

Media Player (MPL).......................................................................................................................39

Generator.....................................................................................................................................41

DSP (BUS and CUE)......................................................................................................................42

Source selection............................................................................................................................ 46

Using the menu...................................................................................................................................... 47

Congurations...............................................................................................................................48

Media Clock.................................................................................................................................54

Monitoring & Info......................................................................................................................... 55

Options........................................................................................................................................ 58

Identifying the processor..........................................................................................................................63

Maintenance.................................................................................................................................................... 64

Introduction.............................................................................................................................................64

Presentation.................................................................................................................................. 64

Equipment and tools......................................................................................................................64

Troubleshooting and diagnosis................................................................................................................. 65

Power issues................................................................................................................................. 65

Interface issues..............................................................................................................................65

Network issues..............................................................................................................................66

Error messages............................................................................................................................. 66

Sound issues.................................................................................................................................67

Exploded view........................................................................................................................................69

Disassembly and Reassembly procedures.................................................................................................. 70

D/R - Encoder wheel knob............................................................................................................ 70

Specications................................................................................................................................................... 71

General................................................................................................................................................. 71

Interface and connectors..........................................................................................................................71

Inputs and outputs...................................................................................................................................72

Signal processing....................................................................................................................................75

P1 Sensor.............................................................................................................................................. 75

Remote control........................................................................................................................................75

Physical data..........................................................................................................................................76

Appendix.........................................................................................................................................................77

Glossary................................................................................................................................................ 77

List of AVB reservation errors...................................................................................................................77

Licenses and copyrights........................................................................................................................... 79

Approvals...............................................................................................................................................80

Safety

Important safety instructions

Verify the electrical conformity and compatibility of the mains supply.

Only connect the product to an AC power outlet rated 100-240 V, 50-60 Hz.

The product draws 27 W (typical).

WARNING: The product is of CLASS 1 construction and shall be connected to a mains socket outlet with a

protective connection to earth.

When the product is used in a three-phase circuit, verify the electrical conformity and

compatibility of the three-phase circuit.

Verify that the three phases work, and balance the loads between the three phases.

Verify that the neutral and earth work.

Never try to emulate a 230 V circuit connecting an apparatus to two live wires of a 120 V three-phase circuit.

Never try to emulate a 200 V circuit connecting an apparatus to two live wires of a 100 V three-phase circuit.

Electrical generator

You must power on the generator before powering on the product.

Verify that the product is turned off before powering on the generator.

To reduce the risk of re or electric shock, this apparatus should not be exposed to rain or moisture and objects

lled with liquids, such as vases, should not be placed on this apparatus.

Never incorporate equipment or accessories not approved by L-Acoustics.

Read all the related PRODUCT INFORMATION documents shipped with the products before

exploiting the system.

Inspect the product before operation.

If any sign of defect or damage is detected, immediately withdraw the product from use for maintenance.

This product is intended for use by trained personnel.

Do not use the product outside its operating temperature range.

The product operates at a room temperature between 0 °C / 32 °F and 50 °C / 122 °F.

Do not expose the product to direct sun.

Only use the product in a conformed electro-magnetic environment.

Conformed environments are: E1 (residential), E2 (commercial and light industrial), E3 (urban outdoors), E4

(controlled EMC environment, ex. TV studio), E5 (heavy industrial), as per EN55103-2 standards.

Avoid radio interference.

This product has been tested and complies with the limits indicated in the EMC directive (Electro Magnetic

Compatibility). These limits are designed to provide reasonable protection against harmful interference from

electrical equipment, but it cannot be guaranteed that interference will never occur.

Read the maintenance section of this document before servicing the product.

Shipping

Use the original packaging for shipping the product, unless it is mounted in a rack with the front xed to the rack,

as described in this manual.

6 P1 user manual (EN) version 2.1

Safety

Explanation of graphical symbols

The lightning ash 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

sufcient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of

important operating and maintenance instructions in the literature accompanying the product.

Symbols

The following symbols are used in this document:

This symbol indicates a potential risk of harm to an individual or damage to the product.

It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of

the product.

This symbol indicates a potential risk of electrical injury.

It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of

the product.

This symbol noties the user about instructions that must be strictly followed to ensure proper installation or

operation of the product.

This symbol noties the user about complementary information or optional instructions.

Do not open unless authorized.

This symbol indicates the presence of electrical shock hazards.

It also indicates that no maintenance performed by the end user requires access to internal components.

P1 user manual (EN) version 2.1 7

Welcome

Thank you for purchasing the P1.

This document contains essential information on using the system properly.

As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to

change the specications of its products and the content of its document without prior notice. Please

check www.l-acoustics.com on a regular basis to download the latest document and software updates.

P1 AVB processor and measurement platform

L-Acoustics P1 is an AVB processor and measurement platform. Remote controlled from LA Network Manager 2.6

Windows/macOS software together with L-Acoustics amplied controllers, its 20 inputs / 18 outputs dual core DSP

platform provides a comprehensive solution for mixing desk selection, signal processing and distribution over AVB

networks, AES/EBU or analog lines.

P1 includes four microphone inputs and an advanced library of acoustic measurement functions for efcient system

tuning. The workow is twofold: the impulse responses of all parts of the system are acquired from multiple audience

locations; then, optimal system tuning is directly determined from LA Network Manager 3 with automatic delay nder

and EQ modelization ofine algorithms. Thanks to a powerful database architecture and online integration with amplied

controllers, the System Engineer can easily select and apply the settings that will achieve the desired result in accordance

with the Soundvision design, the audience characteristics, and the artistic objectives.

8 P1 user manual (EN) version 2.1

System components

Loudspeaker enclosures

Refer to the user manuals of the loudspeaker systems for detailed instructions about the enclosures and their

connection to the amplied controllers.

Powering and driving system

LA12X Amplied controller with DSP, preset library and networking capabilities

LA4X Amplied controller with DSP, preset library and networking capabilities

LA8 Amplied controller with DSP, preset library and networking capabilities

LA4 Amplied controller with DSP, preset library and networking capabilities

P1 AVB processor and measurement platform

Rack

LA-RAK II Touring rack containing three LA12X, LA-POWER II for power distribution and LA-PANEL II for

audio and network distribution

Software applications

Soundvision 3D acoustical and mechanical modeling software

LA Network Manager Software for remote control and monitoring of amplied controllers

Refer to the Soundvision help.

Refer to the LA Network Manager help.

Illustrations

LA Network Manager LA-RAK II

P1 user manual (EN) version 2.1 9

Technical description

Main features

Internal components

P1 has 20 inputs:

• four microphone inputs with switchable +48 V phantom power and high-pass lter.

• four analog line inputs with high-quality A/D conversion

• four AES/EBU inputs with high-quality Sample Rate Converter (SRC)

• one AVB listener capable of retrieving up to eight audio channels from one stream

Its dual DSP core allows to mix these inputs to four independent DSP busses for EQ and dynamics signal processing,

and/or route them directly to any of the 16 + 2 outputs:

• four analog line outputs with high-quality D/A conversion

• four AES/EBU outputs

• one AVB talker capable of sending up to eight audio channels in one stream

• one stereo headphone output

Power is provided by a universal Switched Mode Power Supply (SMPS). Control is possible from the front panel TFT color

touchscreen display user interface, and remotely over 1 Gb/s Ethernet. One General Purpose I/O (GPIO), containing

two GPI and two GPO, allows for control of precongured status or operations. Two USB 2.0 host connectors allow the

connection of the P1 Sensor for temperature and humidity measurement or a USB storage device (max. 500 mA / 5 V).

Front and rear panels

1 2 345

1TFT color touchscreen display (320 × 120 px) 6XLR analog input connectors

2encoding wheel with push button 7XLR analog output connectors

3USB 2.0 host connectors 8XLR AES/EBU input connectors

4XLR analog mic input connectors 9XLR AES/EBU output connectors

51/4 inch stereo headphone jack 10 EtherCON connectors (L-NET and AVB)

11 General Purpose I/O (GPIO) DB9 female connector

12 IEC C13 V-Lock compatible socket with on/off switch

10 P1 user manual (EN) version 2.1

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