Alto PBM4 Users Manual

LTO

PBM4 SISTEMA

PORTABLE PA SYSTEM

R

User's Manual

www.altoproaudio.com

Version 2.0 SEP. 2007

English

IMPORTANT SAFETY INSTRUCTION

CAUTION

RISK OFELECTRIC SHOCK

DO NOTOPEN

TO REDUCE THE RISK OF ELECTRIC SHOCK
PLEASE DO NOT REMOVE THE COVER OR
THE BACK PANEL OF THIS EQUIPMENT.
THERE ARE NO PARTS NEEDED BY USER
INSIDE THE EQUIPMENT. FOR SERVICE,
PLEASE CONTACT QUALIFIED SERVICE
CENTERS.

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.

CAUTION

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

1.

Read this Manual carefully before operation.
Keep this Manual in a safe place.

2.

Be aware of all warnings reported

3.

with this symbol.

4.

Keep this Equipment away from water and
moisture.

5.

Clean it only with dry cloth. Do not use
solvent or other chemicals.

6.

Do not damp or cover any cooling opening.
Install the equipment only in accordance with
the Manufacturer's instructions.

Power Cords are designed for your safety. Do

7.

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.

Unplug this equipment when unused for long

8.

periods of time or during a storm.

Refer all service to qualified service personnel

9.

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

To prevent fire and damage to the product,

10.

use only 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.

WARNING

To reduce the risk of electric shock
and fire, do not expose this equipment
to moisture or rain.

Dispose of this product should
notbeplacedinmunicipalwaste
and should be separate collection.

MovethisEquipmentonlywithacart,

11.

stand, tripod, or bracket,
specified by the
manufacturer, or
sold with the
Equipment. When
a cart is used, use
caution when
moving the cart /
equipment
combination to
avoid possible
injury from tip over.

12.

Permanent hearing loss may be caused by
exposure to \ extremely high noise levels.
The US. Government's Occupational Safety
and Health Administration (OSHA) has
specified the permissible exposure to noise
level.
These are shown in the following chart:

HOURS X DAY

8
6
4
3
2
1,5
1
0,5
0,25 or less

According to OSHA, an exposure to high SPL in
excess of these limits may result in the loss of
heat. To avoid the potential damage of heat, it is
recommended that Personnel exposed to
equipment capable of generating high SPL use
hearing protection while such equipment is
under operation.

The apparatus shall be connected to a mains
socket outlet with a protective earthing
connection.

The mains plug or an appliance coupler is used
as the disconnect device, the disconnect device
shall remain readily operable.

EXAMPLE

SPL

Small gig

90

train

92

Subway train

95

High level desktop monitors

97

Classic music concert

100
102
105
110
115

Rock concert

IN THIS MANUAL:

1. INTRODUCTION................................................................................1

2. FEATURES.......................................................................................1

3. QUICK START..................................................................................4

4. CONTROL ELEMENTS......................................................................5

5. INSTALLATION & CONNECTION........................................................8

6. BLOCK DIAGRAM..........................................................................10

7. TECHNICAL

SPECIFICATIONS...........................................................11

8. WARRANTY..................................................................................12

1. INTRODUCTION

Thank you for purchasing the amazing portable PA system PBM4 SISTEMA.

This system is small enough to fit into any airplane's overhead storage
compartment yet being flexible and powerful enough to be used for small gigs
and professional multimedia presentations. PBM4 SISTEMA includes a 45+45
watt stereo amplifier, a 5-channel mixer, and 2x5" full range speakers. The chassis
is made by moulded polypropylene for shock and moisture protection.
Your PBM4 SISTEMA is the ideal tool for: Multimedia Presentations, Weddings,
Small Church Functions, Gym, Music Rehearsal, Small Gigs, School Functions,
and more .

Enjoy your PBM4 SISTEMA and make sure to read this Manual carefully before
operation!

2. FEATURES

Compact moulded polypropylene case
Modern design & Lightweight

2x5" full range speakers
3-band equalizer on input channels
5 Input channels with individual Volume control and 2 bands EQ

3 bands Master EQ
3 XLR microphone Inputs with phantom power(+15V)
2 RCA Line Inputs
2 RCA Line Outputs
Monitor/Headphone output
Monitor/Headphone level control
2 powered output (45+45 watt) for optional external speakers

1

SPOTLIGHT

12KHz

LOW

80Hz

-15dB

MIC IN (bal.)

CH 1

MIC IN (bal.)

CH 2

MIC IN (bal.)

CH 3

CH 4

OUT

LINE IN

(bal.)

LINE IN

(bal.)

LINE IN

(bal.)

3

3

3

TAPE

L

O

+15dB

W

N

O

I

S

12

E

P

-

R

E

LEVEL

A

M

8

P

+10dB

LOW

80Hz

-15dB

L

O

+15dB

W

N

O

I

S

12

E

P

-

R

E

LEVEL

A

M

8

P

+10dB

LOW

80Hz

-15dB

L

O

+15dB

W

N

O

I

S

12

E

P

-

R

E

LEVEL

A

M

8

P

+10dB

LOW

80Hz

-15dB

+15dB

-

LEVEL

8

+10dB

IN

MONITOR OUT

MAIN POWER OUT

-15dB

0

+15dB

0

-15dB

0

+15dB

0

-15dB

0

+15dB

0

-15dB

0

+15dB

0

12KHz

12KHz

12KHz

HIGH

HIGH

HIGH

HIGH

0

0

0

0

-15dB

+15dB

-15dB

+15dB

-15dB

+15dB

-

LEVEL

8

+10dB

-

+10dB

PBM4

LTO

SISTEMA

R

BASS

0

MIDDLE

0

HIGH

0

MAIN

dB

0

-10

-30

10

0

PHANTOM

MONITOR

0

OPERATING

8

ON

OFF

2

3. QUICK START

ThisisthefastestwaytogetsomethingoutfromyourPBM4SISTEMA,ifyouhave
akeyboardandamicrophone.

a. Well, there is not really much to say before starting to operate the PBM4 SISTEMA.

It includes Mixer, Amplifiers and Speakers, so just put it on a clean table first and

make sure that the Power switch on the back panel is on OFF position.

b. Turn down the Input Channel Gain Controls and the MAIN and MONITOR controls.

c. Keep Input Channel EQ and Master EQ controls in center position.

d. Only at this point you can connect the AC cable into an AC socket and you can

switch the system ON.

e. Now connect a microphone into Channel 1-3 or a Line Instrument into Channel 4.

f. Slowly turn up the Input Channel LEVEL Control and then the MAIN Control.

g. For an optimal sound reproduction make sure that the -10 and 0 LEDs on the

Master LED Meter are blinking.

Here you are. It is your first gig with your PBM4 SISTEMA..

3