Nilfisk AMX-140FX, AMX-140 User Manual

User's Manual

AMX-140FX/ AMX-140

14-CHANNEL MIXING CONSOLE/

with DIGITAL EFFECTS

R

LTO

www.altoproaudio.com

Version 1.0 December 2003

English

SAFETY RELATED SYMBOLS

CAUTION

RISK OFELECTRIC SHOCK

DO NOTOPEN

This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.

This symbol, wherever used, alerts you to important operating and maintenance instructions. Please read.

Protective Ground Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON: Denotes the product is turned on.

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.

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.

Protective Ground

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.

Operating Conditions

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.

CAUTION

Describes precautions that should be observed to prevent damage to the product.

WARNING

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 registered electrician.

Do Not Remove Any Covers

Within the product are areas where high voltages may 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.

No user serviceable parts inside.

Fuse

To prevent fire and damage to the product, use only

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions

Follow all instructions

Keep these instructions. Do not discard.

Heed all warnings.

Only use attachments/accessories specified by the manufacturer.

Power Cord and Plug

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.

Cleaning

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, keep product clean and free from dust.

Servicing

Refer all servicing to qualified service personnel only.

Do not perform any servicing other than those instructions contained within the User's Manual.

1

PREFACE

Dear Customer:

Thank you for choosing the LTO AMX-140 14-Channel Mixing Console (AMX-140FX 14-Channel Mixing Console with Digital Effects), which is the result of our LTO AUDIO TEAM's endeavours.

For the LTO AUDIO TEAM, music and audio are more than a profession, it is a passion and an obsession!

We have, in fact, been designing professional audio products for a number of years in cooperation with many of the world's major brands.

The LTO line represents unparalleled analogue and digital products made by musicians, for musicians. With our design centres in Italy, the Netherlands, and the United Kingdom we provide you with world-class designs, while our software development teams continue to develop an impressive range of audio specific algorithms.

By purchasing our LTO products you become the most important member of our LTO AUDIO TEAM. We would like to share with you our passion for what we design and invite you to make suggestions, which will aid us in developing future products for you. We guarantee you our commitment for quality, continual research and development, and of course the best prices.

The LTO AMX-140(FX) mixing console is equipped with 4 mono input channels (these are provided with ultra low noise microphone pre-amplifiers and phantom power at +48 Volt), 4 stereo input channels, 4 stereo aux returns and 2 TK IN. So, in total you have 14 input channels on your AMX-140(FX). It is specifically designed for professional application. Seeing is believing, let's meet the LTO AMX-140(FX).

We would like to thank all the people who made the LTO AMX-140(FX) 14-Channel Mixing Console possible, especially to our designers and LTO staff. It is their passion for music and professional audio that has made it possible for us to offer you, our most important team member, our continued support.

Thank you very much

LTO AUDIO TEAM

2

TABLE OF CONTENTS

1.INTRODUCTION...................................................................................................................................................4

2.FEATURES...........................................................................................................................................................5

3.READY TO START?...............................................................................................................................................6

4.CONTROL ELEMENTS.......................................................................................................................................7

4.1 MONO MIC/LINE Channels .........................................................................................................................9

4.2 INPUT LEVEL Setting ..................................................................................................................................9

4.3 MONO Channel INSERT ..............................................................................................................................9

4.4 LOW CUT Switch ........................................................................................................................................9

4.5 STEREO Inputs ..........................................................................................................................................10

4.6 3 BANDS EQUALIZER Controls ................................................................................................................10

4.7 AUX SENDS Controls ...............................................................................................................................10

4.8 PAN/BAL Control .......................................................................................................................................11

4.9 PEAK LED ..................................................................................................................................................11

4.10 LEVEL Control ...........................................................................................................................................11

4.11 MAIN MIX LEVEL Dial ...............................................................................................................................11

4.12 OUTPUT LEVEL LED Display ....................................................................................................................11

4.13 POWER LED .............................................................................................................................................11

4.14 PHANTOM LED .......................................................................................................................................11

4.15 TAPE Switches .........................................................................................................................................11

4.16 2TK IN Control ...........................................................................................................................................12

4.17 PHONES/CTRL ROOM Control ...............................................................................................................12

4.18 AUX RETURN Controls ............................................................................................................................12

4.19 AUX SENDS Connectors ........................................................................................................................12

4.20 STEREO AUX RETURNS Connectors .....................................................................................................12

4.21 PHONES ...................................................................................................................................................12

4.22 CTRL ROOM OUTPUT Connectors..........................................................................................................12

4.23 24 BIT DIGITAL EFFECTS (For AMX-140FX Model) ................................................................................13

4.24 2TK IN/OUT Connectors .............................................................................................................................13

4.25 MAIN MIX OUTPUT Connectors ...............................................................................................................14

4.26 REAR PANEL Description ........................................................................................................................14

5.INSTALLATION AND CONNECTION.....................................................................................................................15

6.FOR THE EXPERTS WHO WANT TO KNOW MORE..........................................................................................18

7.PRESET LIST.........................................................................................................................................................19

8.SYSTEM BLOCK DIAGRAMS.............................................................................................................................26

9.TECHNICAL SPECIFICATION..............................................................................................................................27

10.WARRANTY.........................................................................................................................................................29

3

1. INTRODUCTION

Thank you very much for expressing your confidence in products by purchasing ixing console.LTO LTO AMX-140(FX) m The AMX-140(FX) is a professional compact mixer. You will get the smooth, accurate more natural and open sound from this apparatus, and it is really ideal for small gigs, recording and fixed PA installations.

The AMX-140(FX) mixing console is packed with some key features that can not be found in other consoles of its size: 4

mono (these are provided with ultra low noise microphone pre-amplifiers and phantom power at +48 Volt) and 4

stereo input channels, and each of them is provided with a 3 bands graphic equalizer for HI, MID and LOW controls;

highly accurate 12-segment bar graph meters and 2-Track inputs assignable to main mix, control room / headphone outputs etc.. Besides, the 24 bit effects processor with 256 effects (16 presets 16 variations) is equipped specifically for AMX-140FX.

Your AMX-140(FX) is very easy to operate but we advise you to go through each section of this manual carefully. In this way you will get the best out of your AMX-140(FX).

4

2. FEATURES

The AMX-140(FX) mixing console is designed for professional application. It will provide the following features:

The common features:

5 MIC input channels with gold plated XLRs and balanced LINE input

4 stereo input channels with balanced TRS jacks

Ultra-low noise discrete MIC pre-amps with +48V Phantom power

Extremely high headroom offering more dynamic range

Balanced inputs for highest signal integrity

Warm, natural 3-band EQ on each channel

Switch-able Low-cut filter on each mono channel

Peak LED on each channel

AUX send 1/2 per channel for external effects and monitoring

4 AUX returns for additional functionality

Control room and headphone outputs

2-Track inputs assignable to main mix, control room / headphone outputs

Highly accurate 12-segment bar graph meters

Inserts on MIC channels

Additionally, the AMX-140FX is also equipped with following features:

24 bit digital effects processor

256 effects (16 presets 16 variations)

Effect on/off by means of MUTE switch or a footswitch connected to the DFX FOOTSWITCH

5

3. READY TO START?

3.1 Please check the AC voltage available in your country before connecting your AMX-140(FX) to the AC socket.

3.2 Be sure that the main power switch is turned off before connecting the mixer to the AC socket. Also, you should make sure that all Input and output controls are turned down. This will avoid damages to your speakers and avoid

excessive noise.

3.3 Before turning on the AMX-140(FX) you shall connect it to a power amplifier and turn-on the mixer BEFORE the power amplifier. Once you have finished your working session you shall turn the mixer off AFTER the power amplifier.

3.4 Before disconnecting the AMX-140(FX) always turn-off the power switch.

3.5 Do not use solvents to clean your AMX-140(FX). A dry and clean cloth will be OK.

6

4. CONTROL ELEMENTS

AMX-140FX

MIC 1

J.T.

12

3

BAL OR

UNBAL

LINE IN 1

INSERT INSERT INSERT

TRIM

+15dB -30dB LINE

0dB 44dB MIC

LOW CUT

18dB/Oct

MIC 2 MIC 3 MIC 4

J.T.

12

3

LINE IN 2 LINE IN 3

TRIM

+15dB -30dB LINE

0dB 44dB MIC

LOW CUT

75Hz

LOW CUT

EQ

HI

12kHzHI12kHz

-15 +15

-12 +12

-15 +15

1

8

-+15

2

/ D F X

8

-+15

MID

2.5kHz

LOW

80Hz

AUX

PRE

POST

(PRE)

-15 +15

-12 +12

-15 +15

1

8

-+15

2

/ D F X

8

-+15

PAN

RIGHTLEFT

PEAK

8

-+15

LEVEL

1

RIGHTLEFT

8

-+15

LEVEL

2

2-TRACK IN/OUT

L

BAL OR

UNBAL

J.T.

12

3

BAL OR

UNBAL

J.T.

12

BAL OR

UNBAL

LINE IN 4

R

TAPE IN

TAPE OUT

LEFT RIGHT

3

LINE IN 5/6 LINE IN 7/8

J.T.

INSERT

TRIM

+15dB -30dB LINE

0dB 44dB MIC

LOW CUT

-15 +15

-12 +12

-15 +15

8

-+15

/

8

-+15

RIGHTLEFT

8

-+15

LEVEL

LOW CUT

18dB/Oct

EQ

12kHzHI12kHz

2.5kHz

AUX

POST

(PRE)

PAN

75Hz

18dB/Oct

EQ

HI

12kHzHI12kHz

MID

2.5kHz

LOW

80Hz

1

AUX

PRE

2

POST

D F

(PRE)

X

PAN

PEAK PEAK PEAK PEAK PEAK

3

TRIM

+15dB -30dB LINE

0dB 44dB MIC

LOW CUT

75Hz

LOW CUT

75Hz

18dB/Oct

EQ

MID

LOW

80Hz

PRE

HI

-15 +15

-12 +12

-15 +15

1

-+15

2

/ D F X

-+15

HI

12kHzHI12kHz

MID

2.5kHz

LOW

80Hz

AUX

PRE

8

POST

(PRE)

8

PAN

RIGHTLEFT

8

-+15

LEVEL

4 5/6 7/8

3

MIC (MONO)

TRIM

0dB 44dB MIC

-15 +15

-12 +12

-15 +15

1

8

-+15

2

/ D F X

8

-+15

RIGHTLEFT

8

-+15

LEVEL

12

2.5kHz

AUX

BAL

EQ

HI

12kHzHI12kHz

MID

LOW

80Hz

PRE

POST

(PRE)

LEFT(MONO)LEFT(MONO)

RIGHT

-15 +15

-12 +12

-15 +15

1

8

-+15

2

/ D F X

8

-+15

RIGHTLEFT

8

-+15

LEVEL

AUX

BAL

MAIN MIX OUTPUT

(BAL/UNBAL)

LEFT (MONO)

RIGHT

EQ

HI

12kHzHI12kHz

MID

2.5kl

LOW

80Hz

PRE

POST

(PRE)

0

8

-+15

AUX2/DFX TO AUX 1AUX2/DFX TO AUX 1

8

-

CTRL ROOM

/

PHONES

-20

-30

CTRL ROOM OUTPUT

L

STEREO AUX RETURNS

1

LEFT(MONO) LEFT(MONO)

RIGHT RIGHT

R

2

0

8

-+15

AUX RTN 1AUX RTN 1

MAX

8

-

MAX

2TK IN

OUTPUT LEVELOUTPUT LEVEL

0

-2

-4

-7

-10

8

-

MAIN MIX LEVEL

LTO

AM

14-CHANNEL MIXING CONSOLE

WITH DIGITAL EFFECTS

2

4

PHPWR

-140

PHONES

AUX SENDS

1

2

0

8

-+15

AUX RTN 2 (DFX)AUX RTN 2 (DFX)

2TK TO

CTRL ROOM

2TK TO MIX

TAPE

7

10

CLIP

+15

L

R

13

10. MONO DELAY

11. STEREO DELAY

12. FLANGER

13. CHORUS

14. REV.+ DELAY

15. FLANGERREV.+

16. REV.+ CHORUS

R

FX

DSP

FOOTSWITCH

1

16

2

15

14

12

11

8

10

9

PRESETS

1

16

2

15

14

12

11

8

10

9

VARIATIONS

PEAK

DFX MUTE

1. VOCAL 1

2. VOCAL 2

3. LARGE HALL

4. SMALL HALL

5. LARGE ROOM

6. SMALL ROOM

7. PLATE

8. TAPE REVERB

9. SPRING REVERB

3

4

5

6

7

3

4

5

6

7

AMX-140

MIC 1

J.T.

3

TRIM

+15dB -30dB LINE

0dB 44dB MIC

-15 +15

-12 +12

-15 +15

1

8

-+15

2

8

-+15

12

BAL OR

UNBAL

LINE IN 4

INSERT

LOW CUT

75Hz

18dB/Oct

EQ

HI

12kHzHI12kHz

MID

2.5kHz

LOW

80Hz

AUX

PRE

POST

(PRE)

PAN

2-TRACK IN/OUT

L

R

TAPE IN

J.T.

3

MIC (MONO)

TRIM

0dB 44dB MIC

-15 +15

-12 +12

-15 +15

1

8

-+15

8

-+15

TAPE OUT

12

EQ

HI

12kHzHI12kHz

MID

2.5kHz

LOW

80Hz

AUX

PRE

POST

(PRE)

BAL

LEFT(MONO)LEFT(MONO)

1

MIC 2 MIC 3 MIC 4

J.T.

12

BAL OR

UNBAL

LINE IN 1

INSERT

LOW CUT

75Hz

18dB/Oct

EQ

HI

12kHzHI12kHz

MID

2.5kHz

LOW

80Hz

AUX

PRE

POST

(PRE)

PAN

J.T.

12

3

BAL OR

UNBAL

LINE IN 2 LINE IN 3

INSERT INSERT

TRIM

+15dB -30dB LINE

0dB 44dB MIC

LOW CUT

75Hz

18dB/Oct

EQ

HI

12kHzHI12kHz

-15 +15

MID

2.5kHz

-12 +12

LOW

80Hz

-15 +15

1

222 22

AUX

PRE

8

-+15

POST

(PRE)

8

-+15

PAN

J.T.

3

TRIM

+15dB -30dB LINE

0dB 44dB MIC

-15 +15

-12 +12

-15 +15

1

8

-+15

8

-+15

12

BAL OR

UNBAL

LOW CUT

75Hz

18dB/Oct

EQ

HI

12kHzHI12kHz

MID

2.5kHz

LOW

80Hz

AUX

PRE

POST

(PRE)

PAN

J.T.

3

TRIM

+15dB -30dB LINE

0dB 44dB MIC

-15 +15

-12 +12

-15 +15

1

8

-+15

8

-+15

MAIN MIX OUTPUT

(BAL/UNBAL)

LEFT RIGHT

LINE IN 5/6 LINE IN 7/8

LEFT (MONO)

RIGHT

EQ

HI

12kHzHI12kHz

-15 +15

-12 +12

-15 +15

MID

2.5kl

LOW

80Hz

AUX2 TO AUX 1AUX2 TO AUX 1

PHONES

AUX

PRE

8

-+15

POST

(PRE)

8

-+15

BAL

CTRL ROOM OUTPUT

L

STEREO AUX RETURNS

1

LEFT(MONO)

LEFT(MONO) LEFT(MONO)

RIGHT RIGHT

0

8

-+15

8

MAX

-

CTRL ROOM

/

-7

-10

-20

-30

R

2

0

8

-+15

AUX RTN 1AUX RTN 1

2TK TO MIX

OUTPUT LEVEL

0

-2

-4

LTO

AM

14-CHANNEL MIXING CONSOLE

2

4

PHPWR

-140

PHONES

AUX SENDS

1

2

0

8

-+15

AUX RTN 2AUX RTN 2

2TK TO

CTRL ROOM

7

10

CLIP

L

R

RIGHTLEFT

PEAK

8

-+15

LEVEL

1

RIGHTLEFT

PEAK PEAK PEAK PEAK PEAK

8

-+15

LEVEL

2

RIGHTLEFT

8

-+15

LEVEL

3

RIGHTLEFT

8

-+15

LEVEL

RIGHTLEFT

8

-+15

LEVEL

4 5/6 7/8

8

RIGHTLEFT

8

-+15

LEVEL

8

-

MAIN MIX LEVEL

+15

4.1 MONO MIC/LINE Channels

1

These are channel 1 through channel 4. You can connect balanced, low impedance microphones to the XLR socket. On the 1/4" phone jack you can connect either a microphone or a line level instrument. You shall never connect an unbalanced microphone to the XLR socket if you do not want to damage both the microphone and the mixer.

MIC 1

J.T.

3

12

48 Volt phantom power

2

It is available only to the XLR Mic sockets. Never plug in a microphone when phantom power is already on. Before turning phantom power on, make sure that all faders are all the way down. In this way you will protect your stage monitors and main loudspeakers.

4.2 INPUT LEVEL Setting

3

This control is provided with 2 different indication rings: One is for the microphone and the other for the line levels. When you use a microphone you shall read the OUTSIDE ring (0~44 dB), when you use a line level instrument you shall read the INSIDE ring (+15~-30 dB). For optimum operation you shall set this control in a way that the peak LED will blink also occasionally in order to avoid distortion on the input channel.

BAL OR

UNBAL

LINE IN 1

INSERT

TRIM

+15dB -30dB LINE

0dB 44dB MIC

LOW CUT

75Hz

18dB/Oct

1

4

3

5

4.3 MONO Channel INSERT

Insert points are provided for each mono MIC channel, which can

4

ON

allow you patch external signal processing devices into signal path. When you insert a TRS jack in the insert socket, the signal will be taken out after the input gain control (Trim), sent to an external processor such as a compressor-limiter, and returned into the channel strip immediately before the EQ section. Of course,

OFF

POWER

PHANTOM

the jacks used must be stereo (Tip Send/Ring Return).

2

4.4 LOW CUT Switch

5

By pressing this button you will activate a 75 Hz low frequency filter with a slope of 18 dB per octave. You can use this facility to reduce the hum noise infected by the mains power supply, or the stage rumble while using a microphone.

9