Nexo PS8 ユーザーマニュアル

PS Series

PS8 – LS400 – PS8 Analogue TD Controller

PS10R2 –LS600 -PS10 Analogue TD Controller

PS15R2 – PS15 Analogue TD Controller

User Manual

PS Series User Manual V1.01

Date: 08/09/2009

Page 2/82 INTRODUCTION

PLEASE READ CAREFULLY BEFORE PROCEEDING

BASIC PRECAUTIONS

Do not open the speaker system or attempt to disassemble the internal parts or modify them in any

way. The speaker system contains no user-serviceable parts. If it should appear to be malfunctioning

or damaged, discontinue use immediately and have it inspected by qualified NEXO service personnel.

Water exposure: Do not expose the speaker system to direct rain, do not use it near water or in wet

conditions. Do not place containers with liquid on speaker system as they might spill into openings. If

any liquid such as water seeps into the speaker system, have it inspected by qualified NEXO

personnel.

SYSTEM DEPLOYMENT SAFETY RULES

Read User Manual before deployment. Before use of enclosed speaker system,

please ensure that anyone involved in system deployment understands the rigging –

stacking – pole mounting safety rules as described in the speaker system User Manual.

Failure to do this exposes people to potential injury or death.

Always consult qualified NEXO personnel if the device installation requires construction work and make

sure to observe the following precautions:

Mounting precautions

- choose mounting hardware and an installation location that can support the weight of the speaker

system;

- do not use speaker system handles for suspended installation;

- do not expose speaker system to excessive dust or vibration, or extreme cold or heat to prevent

possibility of component damage;

- do not place the speaker system in an unstable position from which it might fall accidentally;

- if speaker systems uses a stand, ensure that stand specifications are adapted, and that stand

height does not exceed 1.40m/55”; never move the stand while the speaker is in position.

Connection and powering precautions

- remove all connected cables before moving the speaker system;

- turn off AC power of all power amplifier units before connecting the speaker system;

- when turning on the AC power to the audio system, always turn on the power amplifier last; when

turning the AC power off, always turn off the power amplifier first;

- when used in cold conditions, a gradual power ramp up should applied to the system on an 5 mn

period to allow the loudspeaker components to stabilize during the very first minutes of usage.

Inspect the speaker system periodically.

INTRODUCTION Page 3/82

SAFETY INSTRUCTIONS FOR NEXO TD CONTROLLERS

NEXO ANALOGUE PSTDCONTROLLERS, NX242 DIGITAL CONTROLLER,

NXAMP4x1 AND NXAMP4x4 POWERED CONTROLLERS ARE CLASS 1

APPARATUS AND MUST BE EARTHED.

THE GREEN AND YELLOW WIRE OF THE MAINS CORD MUST ALWAYS BE CONNECTED TO AN

INSTALLATION SAFETY EARTH OR GROUND. THE EARTH IS ESSENTIAL FOR PERSONAL

SAFETY AS WELL AS THE CORRECT OPERATION OF THE SYSTEM, AND IS INTERNALLY

CONNECTED TO ALL EXPOSED METAL SURFACES.

- Read these instructions.

- Keep these instructions.

- Heed all warnings.

- Follow all instructions.

- Do not use this apparatus near water.

- Clean only with dry cloth.

- Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus

(including amplifiers) that produce heat.

- 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 are provided for your safety. If the provided plug does not

fit into your outlet, consult an electrician for replacement of the obsolete outlet. (US market)

- Protect the power cord from being walked on or pinched particularly at plugs, convenience

receptacles, and the point where they exit from the apparatus.

- Only use attachments/accessories specified by the manufacturer.

- Unplug this apparatus during lightning storms or when unused for long periods of time.

- Refer all servicing to qualified 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.

To avoid electrical shock, do not remove covers.

Dangerous voltages exist inside.

Refer all servicing to qualified personnel only.

WARNING: To reduce the risk of fire or electric shock,

do not expose this apparatus to rain or moisture.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

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 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 (servicing) instructions

in the literature accompanying

the appliance.

Page 4/82 INTRODUCTION

HIGH SOUND PRESSURE LEVELS

Exposure to extremely high noise levels may cause permanent hearing loss.

Individuals vary considerably in susceptibility to noise-induced hearing loss but nearly

everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient

period of time. The U.S. Government’s Occupational and Health Administration (OSHA)

has specified the following permissible noise level exposures: Sound Duration Per

Day In Hours Sound Level dBA, Slow Response

8 90

6 92

4 65

3 97

2 100

1 ½ 102

1 105

½ 110

¼ or less 115

According to OSHA, any exposure in excess of the above permissible limits could result in some

hearing loss. Ear plugs or protectors to the ear canals or over the ears must be worn when operating

this amplification system in order to prevent permanent hearing loss, if exposure is in excess of the

limits as set forth above. To ensure against potentially dangerous exposure to high sound pressure

levels, it is recommended that all persons exposed to equipment capable of producing high sound

pressure levels such as this amplification system be protected by hearing protectors while this unit is in

operation.

DISPOSAL OF OLD ELECTRICAL & ELECTRONIC EQUIPMENT

This symbol on the product or on its packaging indicates that it shall not be treated

as household waste. Instead it shall be handed over to the applicable collection

point for the recycling of electrical and electronic equipment. By ensuring this

product is disposed of correctly, you will help prevent potential negative

consequence for the environment and human health, which could otherwise be

caused by inappropriate waste handling of this product. The recycling of materials

will help to conserve natural resources. For more detailed information about

recycling of this product, please contact your local city office, your household waste

disposal service or the shop where you purchased the product.

INTRODUCTION Page 5/82

CONTENTS

1 Introduction.......................................................................................................................8

2 PS General Set-up Instructions ....................................................................................10

2.1 Speaker connection...................................................................................................10

2.1.1 PS8 – PS10R2 ...................................................................................................10

2.1.2 LS400 – LS 600 .................................................................................................10

2.1.3 PS15R2 ..............................................................................................................10

2.1.4 Configuring PS15 for Passive or Active Mode...................................................11

2.1.5 Cabling ...............................................................................................................11

3 Amplifier Selection for use with PS-Series..................................................................12

3.1 PS and LS recommended amplification....................................................................12

3.1.1 Current rating .....................................................................................................12

3.1.2 Amplifier settings................................................................................................12

3.2 PS Series systems and NXAMP TDControllers........................................................14

3.2.1 NXAMP connectors............................................................................................14

3.2.2 PS Series and NXAMP recommended configurations ......................................15

4 PS Series Setups on NEXO TD Controllers.................................................................16

4.1 Analogue PSTDControllers.......................................................................................16

4.2 Digital NX242-ES4 ....................................................................................................16

4.3 NXAMP TDControllers ..............................................................................................16

5 Connection diagrams.....................................................................................................17

5.1 PS8 & LS400 with PS8 TDController........................................................................17

5.2 PS8 & LS400 with NXAMP4x1..................................................................................18

5.3 PS8 & LS400 with NXAMP4x4..................................................................................19

5.4 PS10 & LS600 with PS10 TDController....................................................................20

5.5 PS10 & LS600 with NXAMP4x1................................................................................21

5.6 PS10 & LS600 with NXAMP4x4................................................................................22

5.7 PS15 Passive & RS15 Omni with PS15 TDController..............................................23

5.8 PS15 Passive & RS15 Omni with NXAMP4x1..........................................................24

5.9 PS15 Passive & RS15 Omni with NXAMP4x4..........................................................25

5.10 PS15 Active with NXAMP4x4....................................................................................26

6 Configurable Asymetrical Horn ....................................................................................27

Page 6/82 INTRODUCTION

6.1 Principle.................................................................................................................... 27

6.2 Change of configuration ........................................................................................... 27

6.3 « Front of house » Configuration (default configuration).......................................... 28

6.4 « Stage Monitor » Configuration............................................................................... 28

7 PS Series hardware setup procedure.......................................................................... 29

7.1 SAFETY FIRST ........................................................................................................ 29

7.1.1 Ground Stacking Safety .................................................................................... 30

7.1.2 Contacts ............................................................................................................ 30

7.2 General Description.................................................................................................. 31

7.2.1 WARNINGS ON PS SERIES ACCESSORIES................................................. 31

7.3 PS Series in fixed installations ................................................................................. 32

7.3.1 Fixed installation Accessories and kits.............................................................. 32

7.3.2 PS rigidly mounted on a wall or a ceiling (vertical or horizontal) ...................... 33

7.3.3 PS10R2 and PS15R2 mounted on a ceiling (vertical or horizontal) ................. 35

7.3.4 PS10R2 and PD15R2 wall suspension (vertical or horizontal)......................... 36

7.4 PS Series in touring applications.............................................................................. 39

7.4.1 Touring Accessories.......................................................................................... 39

7.4.2 PS on speaker stand or on RS15 horizontally .................................................. 40

7.4.3 PS flown vertically ............................................................................................. 41

7.4.4 PS flown horizontally ......................................................................................... 43

7.5 Testing and Maintenance of the system................................................................... 45

8 NEXO Analogue PSTD Controllers .............................................................................. 46

8.1 Analogue TDcontroller Declaration of conformity..................................................... 46

8.2 IMPORTANT SAFETY INSTRUCTIONS................................................................. 46

8.3 Analogue TDcontroller Setting-Up Advice................................................................ 47

8.3.1 Mains Power...................................................................................................... 47

8.3.2 Voltage setting................................................................................................... 47

8.3.3 Mounting the TDcontroller in a rack (Grounding, shielding & safety issues) .... 47

8.3.4 Fuse................................................................................................................... 47

8.3.5 Recommendations for wiring the sense lines ................................................... 48

8.3.6 Recommendations for wiring the audio outputs................................................ 48

8.3.7 Electromagnetic environments .......................................................................... 48

8.3.8 Analogue signal cables ..................................................................................... 48

8.4 Analogue TDcontroller USER GUIDE ...................................................................... 49

8.4.1 Read before use ................................................................................................ 50

8.4.2 Front Panel ........................................................................................................ 50

8.4.3 Rear Panel......................................................................................................... 51

8.5 TDcontroller REFERENCE GUIDE .......................................................................... 53

8.5.1 Linear section .................................................................................................... 53

8.5.2 Servo Control section ........................................................................................ 53

INTRODUCTION Page 7/82

9 Technical Specifications................................................................................................55

9.1 PS8 – LS400 .............................................................................................................55

9.1.1 System specifications ........................................................................................55

9.1.2 Dimensions ........................................................................................................56

9.1.3 Diagrams ............................................................................................................57

9.2 PS10R2 – LS600.......................................................................................................58

9.2.1 System specifications ........................................................................................58

9.2.2 Dimensions ........................................................................................................59

9.2.3 Diagrams ............................................................................................................60

9.3 PS15R2.....................................................................................................................61

9.3.1 System specifications ........................................................................................61

9.3.2 Dimensions ........................................................................................................62

9.3.3 Diagrams ............................................................................................................63

9.4 PS Analogue TDcontrollers.......................................................................................63

9.4.1 Specifications .....................................................................................................64

9.4.2 Front and Rear Panel view ................................................................................64

9.5 PS Touring Applications Accessoies.........................................................................65

9.5.1 “U” Bracket for PS8 (VNT-SSBRK8, includes VN-ADPT) .................................65

9.5.2 ”U” Bracket for PS10R2 (VNT-SSBRK10) .........................................................66

9.5.3 ”U” Bracket for PS15R2 (VNT-SSBRK15) .........................................................67

9.5.4 Flying Rail for PS8* / PS10R2 / PS15R2 (VNT-TTC)........................................68

9.5.5 Lifting Ring for ”U” bracket or Flying Rail (VNT-XHBRK, includes BL845) .......69

9.5.6 Truss hook for “U” bracket or Flying Rail (VNT-TCBRK)...................................70

9.5.7 Flying Adaptor for PS8 (VNT-ADPT) .................................................................71

9.6 PS Fixed Installations Accessories...........................................................................72

9.6.1 PS8 “U” Bracket (VNI-UBRK8) ..........................................................................72

9.6.2 PS10R2 “U” Bracket (VNI-UBRK10)..................................................................73

9.6.3 PS15R2 “U” Bracket (VNI-UBRK12)..................................................................74

9.6.4 “L” Bracket for cable suspension for PS10R2 and PS15R2 (VNI-LBRK)..........75

9.6.5 “U” Bracket for rigid suspension for PS10R2 and PS15R2 (VNI-ABRK) ..........76

9.6.6 Wall suspension for PS8 & PS10 (VNI-WS10) ..................................................77

9.6.7 Wall suspension for PS15R2 (VNI-WS15).........................................................78

PS Series Parts & Accessories List.....................................................................................79

9.7 Modules & Control Electronics List ...........................................................................79

9.8 Accessories List ........................................................................................................80

10 USER NOTES...............................................................................................................82

Page 8/82 INTRODUCTION

1 INTRODUCTION

Thank you for selecting a NEXO PS Series equipment.

This manual is intended to provide you with necessary and useful information about your PS speaker

system, which includes the following products:

• LS400 is optional Sub-Bass for PS8

• PS8

• LS600 is optional Sub-Bass for PS10R2

• PS10R2 (available in Left and Right versions)

• PS15R2 (available in Left and Right versions)

• PS8 Analogue TD Controller (for PS8 and LS400)

• PS10 Analogue TD Controller (for PS10 and LS600)

• PS15 Analogue TD Controller (for PS15 and RS15)

• A full range of accessories that provides safe, flexible and simple means of installing PS Series in

fixed installation as well as in touring applications.

INTRODUCTION Page 9/82

As for all NEXO systems, PS Series are controlled, powered and monitored by dedicated NEXO

TDControllers:

• PS analogue TDController provides full control for PS Series and dedicated subwoofers. It has 2

analogue inputs (Left and Right) and 3 analogue outputs (Sub-Bass, PS Left and PS Right);

• NX242-ES4 Digital TDController provides comprehensive control of PS loudspeakers in multiple

configurations. It allows Ethersound

TM

digital audio networking, as well as remote control for all

units in the network. It has 2 analogue / 4 digital inputs and 4 analogue / 4 digital outputs;

IMPORTANT

NX242 must be equipped with NX-Tension Card (NX-ES4) to access PS setups

• NXAMP4x1 and NXAMP 4x4 are Powered Digital Controllers, providing full control and

amplification for PS Series in multiple configurations. Both devices feature 4 analogue inputs and

4 speaker outputs. When equipped with optional card, 4 digital inputs in Ethersound

TM

digital

audio network format as well as remote control for all units in the network become available.

For a complete description of these controllers, please refer to User Manuals. The NX242 and NXAMP

DSP algorithms and parameters are fixed in software and updated regularly: Please consult the NEXO

web site (www.nexo.fr

) for the latest software releases.

GeoD Passive mode

Crossover 80Hz

Page 10/82 PS GENERAL SET-UP INSTRUCTIONS

2 PS GENERAL SET-UP INSTRUCTIONS

2.1 Speaker connection

PS Series connected with Speakon NL4FC plugs (not supplied). A wiring diagram is printed on the

connection panel located on the back of each cabinet.The 4 pins of the 2 Speakon sockets identified in /

out are connected in parallel within the enclosure.

Either connector can be used to connect amplifier or to link to an additional PS range cabinet or to link

to an optional Sub (if present). Therefore, a single 4-conductor cable can connect two amplifier

channels to various PS and/or dedicated Sub Bass.

2.1.1 PS8 – PS10R2

Connectors are wired as follows:

2.1.2 LS400 – LS 600

Connectors are wired as follows:

2.1.3 PS15R2

Connectors are wired as follows:

Speakon

Connector

1(-)

Ö

Not Connected

1(+)

Ö

Not Connected

2(-)

Ö

PS8/PS10 (-)

2(+) PS8/PS10 (+)

Speakon

Connector

1(-)

Ö

LS400/LS600 (-)

1(+)

Ö

LS400/LS600 (+)

2(-)

Ö

Not Connected

2(+) Not Connected

Speakon

Connector

Passive

Mode

Active

Mode

1(-)

Ö

Not Connected PS15R2 LF (-)

1(+)

Ö

Not Connected PS15R2 LF (+)

2(-)

Ö

PS15R2 (-) PS15R2 HF (-)

2(+) PS15R2 (+) PS15R2 HF (+)

PS GENERAL SET-UP INSTRUCTIONS Page 11/82

2.1.4 Configuring PS15 for Passive or Active Mode

• Remove the six TORX screws that hold the connector panel (figure next page);

• Remove the connector panel so that filter WAGO connectors become accessible;

• In Passive Mode, WAGO connector from filter should be inserted in “Passive In”, and speakers

WAGO connectors should be inserted in connector “Passive Out”.

• In Active Mode, WAGO Connector from filter should be directly connected into to speakers via

speakers WAGO connectors (passive filter is then bypassed).

CONNECTOR PANEL PASSIVE MODE ACTIVE MODE

2.1.5 Cabling

NEXO recommends the exclusive use of multi-conductor cables to connect the system: the cable kit is

compatible with all the cabinets, and there is no possible confusion between LF, MF and HF sections.

Cable choice consists mainly of selecting cables of the correct sectional dimension (size) in relation to

the load resistance and the cable length. Too small a cable section will increase both its serial

resistance and its capacitance; this reduces the electrical power delivered to the loudspeaker and can

also induce response (damping factor) variations.

For a serial resistance less or equal to 4% of the load impedance (damping factor = 25), the maximum

cable length is given by:

L

max

= Z x S S in mm

2

, Z in Ohm, L

max

in meters

The table below indicates these values, for 3 common sizes.

Load Impedance (Ω)

2 3 4 6 8 12 16

Cable section Maximum Length (meters)

1,5 mm² (AWG #14) 3 4.5 6 9 12 18 24

2,5 mm² (AWG #12) 5 7.5 10 15 20 30 40

4 mm² (AWG #10) 8 12 16 24 32 48 64

IMPORTANT

Long speaker cables induce capacitive effects – up to hundreds of pF depending on the

quality of the cable - with a high-pass effect on high frequencies. If long speaker cables

must be used, ensure that they do not remain coiled while in use.

Page 12/82 AMPLIFIER SELECTION FOR USE WITH PS-SERIES

3 AMPLIFIER SELECTION FOR USE WITH PS-SERIES

NEXO recommends high power amplifiers in all cases. Budget constraints are the only reason to select

lower power amplifiers. A lower power amplifier will not reduce the chances of driver damage due to

over-excursion, and may actually increase the risk of thermal damage due to sustained clipping. If an

incident occurs on an installation without protection, the fact that amplifiers only generating half their

rated output power (-3dB) are used will not change anything in respect of possible damage. This is due

to the fact that the RMS power handling of the weakest component in the system is always 6 to 10 dB

lower than the amplifier rating.

3.1 PS and LS recommended amplification

Nexo recommends amplifiers in agreement with table below:

Recommended

Amplifier#

Channel 1

LF in Active Mode or

LF+HF in Passive Mode

Channel 2

HF in Active Mode

LS400 300 to 700 W / 6 Ohms

PS8 200 to 500 W / 8 Ohms

LS600 1000 to 2000 W / 8 Ohms

PS10R2 500 to 1250 W / 8 Ohms

PS15R2 Passive Mode 1000 to 2000 W / 8 Ohms

PS15R2 Active Mode 1000 to 2000 W / 8 Ohms 250 to 500 W / 16 Ohms

3.1.1 Current rating

It is very important that the amplifier behaves correctly under low load conditions. A speaker system is

reactive by nature: on transient signals like music it will require four to ten times more instantaneous

current than its nominal impedance would indicate. Amplifiers are generally specified by continuous

RMS power into resistive loads, however the only useful information about current capacity is the

specification into a 2 Ohm load. It is possible to perform an amplifier listening test by loading the amps

with twice the number of cabinets considered for the application (2 speakers per channel instead of one,

4 instead of 2) and running the amps up to the onset of clipping. If the signal does not noticeably

deteriorate, the amplifier is well adapted (overheating after approximately ten minutes is normal but

thermal protection must not operate too quickly after starting this test).

3.1.2 Amplifier settings

Gain value

Gain is the key to correct alignment of the system. It is especially important to know the gain of all

amplifiers used in your set-up. The tolerance should be about ±0.5 dB. In practice this can be difficult to

achieve because:

• Some amplifier brands have an identical input sensitivity for models of different power rating (this

infers a different voltage gain for each model). For example, a range of amplifiers with different

power outputs, all having a published input sensitivity of 775mV/0dBm or 1.55V/+6dBm, will have

a wide range of actual gains – the higher the power, the greater the gain.

• Various other brands may offer constant gain but only within a given product range, for example

they may fit fixed input sensitivity only on their semi-professional amps.

• Even if a manufacturer applies the constant gain rule to all models, the value selected will not

necessarily be the same as that chosen by other manufacturers.

AMPLIFIER SELECTION FOR USE WITH PS-SERIES Page 13/82

• Some products can exhibit manufacturing tolerances for the same model of ±1dB or more. Some

amplifiers may have been modified, possibly without any label indicating the new values. Others

may have gain switches fitted internally where it is impossible for the user to verify the actual

setting without opening the amplifier casing.

• In cases where you don't know the gain of your amplifier (or want to check it) please follow this

procedure:

1) Unplug any loudspeakers from the amplifier outputs

2) With a signal generator, feed a sine wave at 1000Hz at a known voltage (say 0.5V) to

the input of the amplifier under test

3) Measure the voltage at the output of the amplifier

4) Calculate the gain using the formula Gain = 20 * LOG

10

(Vout/Vin).

Some examples:

Vin / Gain 20dB 26dB 32dB 37dB (1.4V sensitivity / 1350Wrms)

0.1 V 1 V 2 V 4 V 7.1 V

0.5 V 5 V 10 V 20 V 35.4 V

1 V 10 V 20 V 40 V 70.8 V

Remember that constant sensitivity settings will give a different gain value when the amplifier power is

different.

NEXO recommends low gain amplifiers: +26dB is recommended, as it is at the same time adequately

low and quite common amongst amplifier manufacturers. This gain setting improves signal to noise ratio

and allows all preceding electronic equipment, including the NX242 TDcontroller or PS TDControllers,

to operate at optimum level. Remember that using a high gain amplifier will raise the noise floor

proportionally.

Operating Mode

Most two channel amplifiers available on the pro-audio market have the following operating modes:

• Stereo:

two fully independent channels deliver identical power into identical loads

• NEXO recommends Stereo Mode for all amplifier channels feeding PS Series speakers.

• Bridge-Mono:

the second signal channel processes the same input as the first channel, but with

reversed phase. The (single) load is connected between the two positive channel outputs using a

suitable connection. While the total output of the amplifier remains the same, the available output

voltage, the minimum impedance that can be connected and the voltage gain are doubled as

compared with stereo operation. Typically, only channel 1 input is active. Positive and negative

output connections vary depending on amplifier manufacturers.

• NEXO does not recommend Bridge Mono Mode unless amplifier power is clearly not sufficient.

Page 14/82 AMPLIFIER SELECTION FOR USE WITH PS-SERIES

IMPORTANT

When in Bridge-Mono mode, check your amplifier user manual for proper connection of

outputs 1(+) and (2+) in relation to input phase.

• Parallel-mono: the output terminals of the two channels are configured in parallel using an

internal relay. The (single) load is connected either to the output of channel 1 or to that of channel

2 (as if in stereo). While the total output of the amplifier remains the same the output voltage level

is also the same as in stereo mode. The minimum impedance that can be connected is reduced

by half due to the fact that current capability is doubled. Typically, only channel 1 input is active.

• NEXO does not recommend Parallel-Mono Mode for any PS Series speaker amplification.

Warning on amplifiers signal processing features

Some high-end amplifiers may include signal processing functions similar to those found in the NX242

TDcontroller or in PS TDControllers ("loudspeaker offset integration", "limiter", "compressor," etc.).

Moreover, when this processing is digital, computation latency time can introduce a few milliseconds

delay from input to output. These functions are not adapted to specific system requirements and may

interfere with the complex protection algorithms used in the NEXO TD Controllers.

NEXO do not advise using other protection systems in conjunction with the NEXO TD Controllers and

they should be disabled.

IMPORTANT

For proper system protection, no latency time or non-linear devices should be

introduced between the output of the NEXO TDcontroller and the input of loudspeakers

through use of DSP modules such as internal amplifier signal processing.

3.2 PS Series systems and NXAMP TDControllers

NEXO Powered TDControllers NXAMP 4X1 & 4X4 are integrated solutions for Control and amplification

for all NEXO speaker ranges.

NXAMP4x1 and NXAMP4x4 power capability is listed in the table below:

Mode 4 Channels Bridge Stereo

NXAMP4x1 4 x 650 Watts / 8 Ohms

4 x 900 Watts / 4 Ohms

4 x 1300 Watts / 2 Ohms

2 x 1800 Watts / 8 Ohms

2 x 2600 Watts / 4 Ohms

NXAMP4x4 4 x 1900 Watts / 8 Ohms

4 x 3400 Watts / 4 Ohms

4 x 4000 Watts / 2 Ohms

2 x 6800 Watts / 8 Ohms

2 x 8000 Watts / 4 Ohms

3.2.1 NXAMP connectors

NXAMP4x1 and NXAMP4x4 rear panels feature:

• 4 analog inputs / outputs (links) on XLR3 connectors;

• 4 digital inputs / outputs on RJ45 connectors with optional card;

• 4 speaker level outputs on NL4FC connectors.

AMPLIFIER SELECTION FOR USE WITH PS-SERIES Page 15/82

Figure below shows connectors implementation on the rear panel.

3.2.2 PS Series and NXAMP recommended configurations

Below table lists basic requirements for proper use of NXAMP TD Controllers in conjunction with PS

Series:

Passive Mode Active Mode

1 or 2 PS8s 1 channel of NXAMP4x1 in 4 channels mode

1 or 2 LS400 1 channel of NXAMP4x1 in Bridge Stereo Mode

1 or 2 PS10 1 channel of NXAMP4x1 in Bridge Stereo Mode

1 channel of NXAMP4x4 in 4 channels Mode

1 or 2 LS600 1 channel of NXAMP4x1 in Bridge Stereo Mode

1 channel of NXAMP4x4 in 4 channels Mode

1 or 2 PS15 1 channel of NXAMP4x1 in Bridge Stereo Mode

1 channel of NXAMP4x4 in 4 channels Mode

2 channels of NXAMP4x1 in Bridge Stereo Mode

2 channels of NXAMP4x4 in 4 channels Mode

1 RS15 Omni 1 channel of NXAMP4x1 in Bridge Stereo Mode

1 channel of NXAMP4x4 in 4 channels Mode

Please refer to following documents (available at www.nexo-sa.com

) for detailed information on specific

configurations:

- NXAMP4x1 and NXAMP4x4 User Manual

- NXAMP Application Guideline

- NXAMP Load Setup list

Page 16/82 PS SERIES SETUPS ON NEXO TD CONTROLLERS

4 PS SERIES SETUPS ON NEXO TD CONTROLLERS

4.1 Analogue PSTDControllers

Analogue PS TDControllers parameters have been optimized for 1 x Subwoofer (mono) used in

conjunction with 2 x PS Series speakers (mono or stereo).

IMPORTANT

- PS8 TDControllers are unchanged in relation to previous version (color change only):

previous generation PS8 TD Controllers and new PS8 TDControllers can be combined.

- PS10TD and PS15TD Controllers are totally uncompatible with previous versions:

confusion would lead to extremely bad results.

4.2 Digital NX242-ES4

Digital NX242-ES4 PS Series setups reproduce Analogue PS TDControllers parameters, with 4

independent processing channels.

4.3 NXAMP TDControllers

At PS Series User Manual current version printing time, 3 families of PS Series setups for NXAMP have

been defined:

- standard, reproducing Analogue PS TDControllers parameters;

- NXStream setups, for FOH applications;

- MTR setups, for stage monitor applications.

Please consult www.nexo-sa.com

for setup list and upgrade releases.

CONNECTION DIAGRAMS Page 17/82

5 CONNECTION DIAGRAMS

5.1 PS8 & LS400 with PS8 TDController

AMPLIFIER 1

AMPLIFIER 2

MONO

STEREO

Speakon 4

1 (+) / 1 (-) LS400

2 (+) / 2 (-) PS8

TO AMPLIFIERS

B

ALANC

E

D IN

P

UT

S

RIGHT

LEFT

-

6dB

-

12dB

0dB

OUT

P

UT

L

E

V

E

L

B

ALANC

E

D OUT

P

UT

S

RIGHT LEFTSUB L+R

E

A

R

TH

LI

F

T

FROM AMPLIFIERS

+ 3-

+ 2 - + 1 -

S

E

N

S

E

IN

P

UT

(from amp terminals)

CAUTION

!

Sense must be connected for

speaker protection

SEE USER MANUAL

STEREO

IN

PS8

LEFT

PS8

RIGHT

LS400

OUT

PS8

LEFT

PS8

RIGHT

LS400

Page 18/82 CONNECTION DIAGRAMS

5.2 PS8 & LS400 with NXAMP4x1

SP4

IN A

SP4

OUT A

OUT C

IN B

SP4

CONNECTION DIAGRAMS Page 19/82

5.3 PS8 & LS400 with NXAMP4x4

SP4 SP4

SP4

OUT A

OUT C

SP4

IN B

IN A

SP4

Page 20/82 CONNECTION DIAGRAMS

5.4 PS10 & LS600 with PS10 TDController

AMPLIFIER 1

AMPLIFIER 2

MONO

STEREO

Speakon 4

1 (+) / 1 (-) LS600

2 (+) / 2 (-) PS10

TO AMPLIFIERS

B

ALANC

E

D IN

P

UT

S

RIGHT

LEFT

-

6dB

-

12dB

0dB

OUT

P

UT

L

E

V

E

L

B

ALANC

E

D OUT

P

UT

S

RIGHT LEFTSUB L+R

E

A

R

TH

LI

F

T

FROM AMPLIFIERS

+ 3-

+ 2 - + 1 -

S

E

N

S

E

IN

P

UT

(from amp terminals)

CAUTION

!

Sense must be connected for

speaker protection

SEE USER MANUAL

STEREO

IN

PS10

LEFT

PS10

RIGHT

LS600

OUT

PS10

LEFT

PS10

RIGHT

LS600

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