Alto Professional PBM4D User Guide
User's Manual
PBM4D SISTEMA
PBM MONITOR
LTO
www.altoproaudio.com
Version 1.0 April 2005
English
R
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.
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.
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.
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.
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
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 , which is the result of our AUDIO
TEAM's endeavours.
For the LTO AUDIO TEAM, music and audio are more than a profession, it is a passion and an obsession!
LTO PBM SERIES MONITOR - PBM4D SISTEMA
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 musician, for musicians. With our design centres in Italy, the Netherlands, and 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.
LTO
The LTO is extremely flexible, ultra-low noise, which is configured with four inputs channels,
PBM4D SISTEMA
each of
them is equipped with a variety of key features including a 2-band equalizer, one AUX send and level control etc..
Besides, the miraculous DSP with 16 presets and powerful digital power amplifier will meet your requirements.
We would like to thank all the people who made the LTO possible, especially to our designersPBM4D SISTEMA
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
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TABLE OF CONTENTS
1. INTRODUCTION.....................................................................................................................................4
2. FEATURES..............................................................................................................................................4
3. QUICK START..........................................................................................................................................5
4. CONTROL ELEMENTS...........................................................................................................................6
4.1 MONO INPUT CHANNELS
4.2 +15V PHANTOM POWER SWITCH
4.3 TAPE IN
4.4 TAPE OUT
4.5 LEVEL CONTROL
4.6 DSP/FX AUX1 POST CONTROL
4.7 2-BAND EQ (FOR INPUT CHANNELS)
4.8 3-BAND EQ (FOR MAIN POWER OUT)
4.9 MONITOR OUT
4.10 MAIN POWER OUT
4.11 OPERATING LED
4.12 MONITOR LEVEL CONTROL
4.13 MAIN MIX LEVEL LED
4.14 MAIN MIX LEVEL CONTROL
4.15 DSP SECTION
4.16 THE REAR PANEL
5. INSTALLATION AND CONNECTION......................................................................................................9
5.1 AUDIO CONNECTIONS
6. PRESET LIST..........................................................................................................................................11
7. TECHNICAL SPECIFICATION...............................................................................................................12
8. BLOCK DIAGRAM.................................................................................................................................13
9. WARRANTY...........................................................................................................................................14
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1. INTRODUCTION
Thank you very much for expressing your confidence in LTO products by purchasing LTO . ThePBM4D SISTEMA
PBM4D SISTEMA is professional monitor, which provides the state of the art digital amplifier technology specifically.
You will get the smooth, accurate, more natural and open sound from this apparatus, it is really ideal for small gigs,
recording and fixed PA installations.
The is packed with some key features. For example: there are 3 Mic/Line inputs which provided withPBM4D SISTEMA
ultra low noise microphone pre-amplifiers and phantom power at +15V and one Tape in/out channel, each of them
features a 2-band EQ, AUX send and level control; main power out with a 3-band EQ and level control; monitor out
with level control, 16 positions multi-effect and so on.
Though your is very easy to operate, we strongly recommend you to go through each section ofPBM4D SISTEMA
this manual PBM4D SISTEMAcarefully, in this way you will get the best out of your .
2. FEATURES
The is designed for professional application. It provides the following features:PBM4D SISTEMA
Digital amplifier technology, offering high power and a very dynamic sound
3-band EQ for MAIN POWER OUT
3 MIC/line input channels with balanced XLR and TRS inputs
Ultra-low noise discrete MIC pre-amps with +15V phantom power
2-band EQ on each input channel
Each input channel with level control and DSP/FX AUX1 POST control
Tape in/out
16 positions digital signal processor
POWER OUTPUT: 80Wrms
.(load.8Ohm)
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