Alto PS 3 Manuel utilisateur

LTO

www.altoproaudio.com

Version 1.1 Septemper 2005

English

User's Manual

PS 3/3A

SAFETY INSTRUCTIONS

1. Read Instructions

All the safety and operation instructions should be read before using the product and retain them for future reference.

2. Water & Moisture

This product should not be used near water and will be protect from atmospheric agents in fixed or temporary installations.

3. Heat

This product should be situated away from heat sources such as radiators, or other devices which produce heat.

4. Liquid Entry

Care should be taken so that liquids are not spilled into the product and that objects do not fall on.

5. Service Assistance

This product should be serviced only by qualified service personnel when :

a. Liquids has spilled or objects have fallen into this product, or

b. This product has been exposed to rain, or

c. This product does not appear to operate normally or exhibits change in performance, or been dropped or itshas

cabinet / chassis damaged.

6. Package

The package of this product has been tested, inspect the package before open, if any damage is found, notify to

your dealer.

7. Hearing

This product produce high acoustic levels may cause permanent hearing loss, (SPL in for a defined period of time).

8. Installations

This product should be installed on the floor with a specific stand, according to the max weight, or in suspension

with a five points included in the cabinet (M10 1.5PH Length 30mm).

The suspension of more speaker cabinet in a vertical array is NOT advised.

"Electric discharge"

This symbol, alert you to the presence of uninsulated dangerous voltage inside the product which constitutes aenclosure,

risk of electric shock.

"Exclamatory point"

This symbol, alert the user to the presence of important operating and maintenance instructions the owner's manualin

included to the product.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Disposing of this product should not be placed in municipal waste and should Separate collection.be

1. PS 3 PASSIVE SPEAKER CABINET QUICK START

Stereo

Power Amplifier

Speaker Cable

Tripod

Mount

Left

Main Mix

Output

Right

Main Mix

Output

Mixer

Tripod

Mount

Speaker Cable

Make all initial connections with all the equipment powered off, and ensure that all the main volume controls are turned

completely down.

1). Connect one side of the speaker cable to the output CHA/CHB or Binding Post of your stereo power amplifier and

the other side to the input socket of your speaker cabinet.

2). Complete other connections as illustrated.

3). Turn on your mixer first, then the stereo power amplifier.

4). Turn up the volume controls of your amplifier to about 70%.

5). Use PFL function to get the proper input level for the mixer, and adjust the main mix level control to manipulate

the output level.

6). After using, turn off your stereo power amplifier first, then the mixer.

-. CONNECTION PLATE

(1) INPUT

(2) THRU

(1) (2)

Receive the power coming from an external power amplifier.

(SPK +1/-1 connected; +2/-2 not connected)

Direct LINK for connect in parallel a second speaker cabinet.

(SPK +1/-1 connected; +2/-2 not connected)

Besides, the passive crossover included the electronic protection

on the driver.

INPUT THRU

LINK

SOUND REINFORCEMENT SPEAKER SYSTEM

POWER HANDLING:

AES - 120 Watts

PEAK - 240 Watts

IMPEDANCE:

8 ohms nominal

DESIGNED AND DEVELOPMENT IN ITALY

SERIAL

MODEL

LTO

PS 3

(3)

(5)(6) (7)

(4)

2. PS 3A ACTIVE SPEAKER CABINET QUICK START

Signal Cable

Power Cord

Tripod

Mount

Main Mix

Left

Output

Mixer

Tripod

Mount

Power Cord

Right

Output

Main Mix

Signal Cable

Make all initial connections with all the equipment powered off, and ensure that all the main volume controls are turned

completely down.

1). Connect one side of the signal cable at your audio mixer into output left /right (with Stereo-Jack or XLR) and the

other side of the cable into the line input (XLR) of your active speaker cabinet.

2). Connect the power cord to mains.

3). Turn on your mixer first, then the active speaker cabinets.

4). Turn up the volume control of the active speaker cabinets.

5). Use PFL function to get the proper input level for the mixer, and adjust the main mix level control to manipulate

the output level.

6). After using, turn off your active speaker cabinets first, then the mixer.

-. CONNECTION PLATE

(1)(2)

CLIP

SHIELD

LTO

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.

"WARNING"

POWER

BAL

LINKINPUT

VOLUME

MODEL

SERIAL

+4dBu

220-240V 50/60Hz

ACTIVE SPEAKER CABINET

BI-AMP. POWER AMPLIFIER

PS 3APS 3A

Useonlywitha250Vfuse

(1) BI-POLAR MAIN POWER SWITCH

(2) AC POWER SOCKET WITH MAIN FUSE

(3) GROUND SWITCH

(4) CLIP INDICATOR RED LED

(5) LINK OUT ON XLR CONNECTOR

(6) STEREO JACK INPUT

(7) MAIN VOLUME CONTROL

3. TECHNICAL SPECIFICATIONS

Descriptions

Powered System type

LOW Output Power

HIGH Output Power

Max SPL at 1m

Frequency Response

Impedance Low - High

Crossover Frequency

Protection Low - High

Low - Frequency

High - Frequency

Horn Coverage H V

Input Sensitivity

Input Impedance

Connectors

Plastic Reinforced Cabinet

Amplifier Protections

External Control

Power Supply

Dimensions H W D

Net Weight /

Gross Weight lbs/kg

Shipping Volume

kg lbs

PS 3A

Bi-Amp. with analog processor

70W RMS Class AB

50W RMS Class AB

115.5dB SPL

60Hz / 20kHz +/- 10dB

Low 8Ohm - High 8Ohm

Complex EQ Processor

Limiter / Compressor plus PTC

12" / 318mm - 2" voice coil

1" Compression Driver -

1" Voice Coil

90 H 45 V

Line + 4dB / 1.23V

30kohms Balanced -

15kohms Unbalanced

Input with Jack / Link with XLR

Trapezoidal & Monitor shape

Soft Start - Short Circuit -

DC voltage - Thermal Protection

Volume - Clip - Ground Switch

230Volt / 115Volt 50 /60Hz

660mm 396mm 384mm

(26" 15.6" 15.1")

18.37kg / 40.5 lbs

21.02kg / 46.34lbs

4.83CFT

The AES 2 - 1984 Standard specification by Audio Engineering

Society, is representative and commonly used for the measure

in Professional Sound Reinforcement.

It is defined as the square of the RMS voltage generated with a

pre-defined and band-passed Pink Noise Signal, applied con-

tinuously for 2 hours, on the assembled speaker cabinet.

In this way, the declared power of ALTO passive speaker cabinet,

is comparable to the RMS voltage value, measured on the equiva-

lent power amplifier for the same value of impedance.

Descriptions

System type

Continuos Power

Peak Power Rating

Sensitivity at 1W, 1mt

Max SPL at 1mt

Frequency Response

Impedance

Crossover Frequency

Lower - Frequency

High - Frequency

High Frequency Protection

Dimensions H W D

Net Weight /

Gross Weight lbs/kg

Shipping Volume

kg lbs

PS 3

2 - way vented box

120 Watt AES Standard

240 Watt Peak

95dB SPL

116dB SPL

65Hz / 20kHz +/-10dB

8 ohm Nominal

2600Hz at 12dB/Oct

12" / 318mm - 2" voice coil

Electronic Dynamic Protection

660mm 396mm 384mm

(26" 15.6" 15.1")

16.25kg / 35.83lbs

18.72kg / 41.27lbs

4.83CFT

1" Compression Driver -

1" Voice Coil

NF01970-1.1

No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan

http://www.altoproaudio.com Tel: 886-4-22313737

email: [email protected] Fax: 886-4-22346757

without prior notice. Any photocopy, translation, or reproduction of part of this

SEIKAKU TECHNICAL GROUP LIMITED

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