Alto PS 3 Manuel utilisateur
LTO
R
www.altoproaudio.com
Version 1.1 Septemper 2005
English
User's Manual
PS 3/3A
1
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
2
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
R
PS 3
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
R
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
4
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
c
All rights reserved to ALTO. All features and content might be changed
without prior notice. Any photocopy, translation, or reproduction of part of this
manual without written permission is forbidden. Copyright 2005 SEIKAKU GROUP
SEIKAKU TECHNICAL GROUP LIMITED
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