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

2. QUICK START - PS 4L .........................................................................2

3. QUICK START - PS 4LA........................................................................3

4. HOOK-UP DIAGRAMS  .........................................................................4

6. PANEL DESCRIPTION-PS 4LA ..............................................................6

7. PANEL DESCRIPTION-PS 4L ................................................................7

5. RIGGING ............................................................................................5

8. TECHNICAL SPECIFICATION..................................................................8

9. WARRANTY ........................................................................................9

1. INTRODUCTION

Thank you for your purchasing of the PS4L/4LA, 2-way active sound 
reinforcement speaker enclosures. It is just one of the many Alto products 
that a talented, multinational Team of Audio Engineers and Musicians have 
developed with their great passion for music. Your PS4L/4LA is capable of 
enormous sound pressure level and it has been created to give you a 
performance that is better than any loudspeaker in this range. Thanks to the 
quality of its transducers, built-in amplifier and digital processor. We design 
all our transducers and cabinets in Emilia-Romagna of Italy, a lowland famous 
for music and fast cars. In fact, Lamborghini, Maserati and Ferrari are made 
just a few miles away from our design centres. The same area has a long 
tradition in designing and manufacturing some of the world's best professional 
transducer and plastic moldings. Enjoy your PS4L/4LA and make sure to read 
this Manual carefully before operation!

IN THIS MANUAL:

Summary of Contents for PS 4L

Page 1: ...User s Manual www altoproaudio com Version 1 3 Aug 2008 English ACTIVE PASSIVE MODELS SPEAKER ENCLOSURE PS 4L 4LA ...

Page 2: ...es 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 The apparatus shall be connected to a mains socket outlet with a prot...

Page 3: ...PS4L 4LA is capable of enormous sound pressure level and it has been created to give you a performance that is better than any loudspeaker in this range Thanks to the quality of its transducers built in amplifier and digital processor We design all our transducers and cabinets in Emilia Romagna of Italy a lowland famous for music and fast cars In fact Lamborghini Maserati and Ferrari are made just...

Page 4: ...er 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 Speaker Cable Tripod Mount Stereo Power Amplifier Mixer Main Mix Output Left Tripod Mount Main Mix Right Output Speaker Cab...

Page 5: ...and the other side of the cable into the line input Stereo Jack 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 ...

Page 6: ...240V 50 60Hz Use only with a 250V fuse SHIELD ACTIVE SPEAKER CABINET BI AMP POWER AMPLIFIER BAL LINK INPUT SIGNAL LIMIT WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE POWER VOLUME MODEL SERIAL PS 4LA 4dBu 220 240V 50 60Hz Use only with a 250V fuse SHIELD ACTIVE SPEAKER CABINET BI AMP POWER AMPLIFIER BAL LINK INPUT SIGNAL LIMIT WARNING TO REDUCE ...

Page 7: ...ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE POWER VOLUME MODEL SERIAL PS 4LA 4dBu 220 240V 50 60Hz Use only with a 250V fuse SHIELD ACTIVE SPEAKER CABINET BI AMP POWER AMPLIFIER BAL LINK INPUT SIGNAL LIMIT WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE POWER VOLUME MODEL SERIAL PS 4LA 4dBu 220 240V 50 60Hz Use only with a 250V ...

Page 8: ...RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE POWER VOLUME MODEL SERIAL PS 4LA 4dBu 220 240V 50 60Hz Use only with a 250V fuse SHIELD ACTIVE SPEAKER CABINET BI AMP POWER AMPLIFIER BAL LINK INPUT 2 1 3 b 3 5 6 7 4 1 2 SIGNAL LIMIT WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE POWER VOLUME MODEL SERIAL PS 4LA 4dBu ...

Page 9: ...rallel a second speaker cabinet SPK 1 1 connected 2 2 not connected Besides the passive crossover included the electronic protection on the driver 7 PANEL DESCRIPTION PS 4L SPOTLIGHT 1 2 INPUT THRU LINK SOUND REINFORCEMENT SPEAKER SYSTEM POWER HANDLING AES 200 Watts PEAK 400 Watts IMPEDANCE 8 ohms nominal DESIGNED AND DEVELOPMENT IN ITALY SERIAL MODEL PS 4L ...

Page 10: ...ight kg lbs Gross Weight lbs kg Shipping Volume PS 4L PS 4LA 2 way vented box 180 Watt AES Standard 360 Watt Peak 96dB SPL 119dB SPL 60Hz 20kHz 10dB 8 Ohm Nominal 2450Hz 12dB Oct 12 318mm 2 Voice Coil 1 Compression Driver 1 Voice Coil Electronic Dynamic Protection 26 15 6 15 1 660mm 396mm 384mm 17 1kg 37 7lbs 19 82kg 43 69lbs 4 83CFT Bi Amp With analog processor 108W RMS 141W EIAJ 45W RMS 56 3W EI...

Page 11: ...of 1 year from the purchase date if you have completed the Warranty Registration Card in time 3 2 The warranty service is only available to the original consumer who purchased this product directly from the retail dealer and it can not be transferred 3 3 During the warranty service may repair or replace this product at its own option at no charge to you for parts or for labor in accordance with th...

Page 12: ...ocopy translation or reproduction of part of this manual without written permission is forbidden Copyright 2008 Seikaku Group SEIKAKU TECHNICAL GROUP LIMITED NO 1 Lane 17 Sec 2 Han Shi West Road Taichung 40151 Taiwan www altoproaudio com Tel 886 4 22313737 email info altoproaudio com Fax 886 4 22346757 ...

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