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PBM4

1. 9 91 2 lt e gt 5 9 5 1504 TY D 1 e 4 450 apo apo SPSL GPSI e apo gps a gt gpo zH08 4 1 INPUT CHANNELS There are CH1 through CH4 which comes with balanced MIC IN and LINE IN connectors Use the XLR MIC IN socket to connect low impedance microphone or low level signal which also features 15V phantom power allowing you to connect condenser microphone Use the 1 4 TRS LINE IN jack to connect either a microphone or a line level instrument such as synthesizers drum machines effect processors or any other line level signal Note You shall never connect an unbalanced microphone to the XLR socket if you do not want to damage both the microphone and the monitor 4 2 15V PHANTOM POWER SWITCH This switch will apply 15 Volt Phantom Power only to the 4 XLR inputs sockets When these XLR sockets are co nnected with devices that do not require Phantom Power please make sure the Phantom Power is turned off oth erwise this may damage the device and monitor 4 3 LEVEL CONTROL This control is used to adjust the overall level of respective channel The adjustable range goes from to 10dB 4 4 DSP FX AUX1 POST CONTROL This control is configured as POST FADER so the audio signal will be affected by channel level co
2. 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 e Fuse To prevent fire and damage to the product 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 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 Cor
3. Use for Insert Points 1 4 Stereo TRS Jack Plug 1 Ground Screen 1 Ground Screen 3 Cold 3 Cold Use for Balanced Mic Inputs Use for Main output For unbalanced use connect pin 1 to 3 For unbalanced use leave pin 3 unconnected 3 pin XLR Male Plug seen from soldering side 3 pin XLR Line Socket seen from soldering side 6 PRESET LIST 1 WARM HALL Simulate a small acoustic space of the sound Rev Decay time 360ms Pre delay 45ms 2 BRIGHT HALL Simulate a large acoustic space of the sound Rev decay lime 290ms Pre delay 23ms 3 Sulat r ii fth 3 Rev decay time 210ms WARM ROOM imulate a small acoustic space of the sound Pre delay 45ms 4 BRIGHT ROOM Simulate a studio room with many early reflections mew DECAY NODIS Pre delay 23ms VOCAL 1 Simulate a room with without delay time Rev decay time 450ms VOCAL 2 Simulate a room with small delay time Rev decay time 240ms Pre delay 25ms 7 VOCAL3 Simulate a small space with slight decay time TIS Pre delay 114ms PLATE Simulate the transducers sound like classic bright vocal Pre delay 10ms plate Rev decay time 290ms th diff STEREO DELAY 1 the input sound stereo output with different Period 352m8 Recreate the input sound on the stereo output with different l 10 STEREO DELAY 2 Period 2385 11 REV DELAY1 Delay with room effect Delay PENDE Seis Rev decay time 290ms 12 REV
4. User s Manual 4 PBM MONITOR M www altoproaudio com Version 1 0 April 2005 English SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol wherever used alerts you to the pre sence of un insulated and dangerous voltages with in 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 impo rtant operating and maintenance instructions Please read AC mains Alternating Current Protective Ground Terminal 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
5. 7 TAPE OUT 4 8 GRAPHIC EQ 4 9 MAIN MIX LEVEL CONTROL 4 10 MAIN MIX LEVEL LED 4 11 OPERATING LED 4 12 POWER AMPLIFIER OUTPUT 4 13 MONITOR OUTPUT 4 14 MONITOR LEVEL CONTROL 4 15 FOOTSWITCH 4 16 FX RETURN 4 17 FX SEND 4 18 DSP SECTION 4 19 REAR PANEL 5 INSTALLATION AND nnne nnne nns 9 5 1 AUDIO CONNECTIONS 11 T TECHNICAL SPECIFICATION ole aed 12 8 BLOCK DIAGRAM Em 14 1 INTRODUCTION Thank you very much for expressing your confidence in ALTO products by purchasing ALTO PBM4 The PBM4 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 PBM4 is packed with some key features For example there is four MIC line inputs which provided with ultra low noise microphone pre amplifiers and phantom power at 15V each of them features a 2 band equalizer one AUX send and level control FX send and return power amplifier outputs monitor output plus Tape in out and level controls graphic equalizer for MAIN MONITOR outputs 16 position multi effect and so on Though your PBMA is very easy to operate we strongly recommend you to go through each sec
6. DELAY2 Delay with room effect pe ease Rev decay time 240ms 13 REV DELAY3 Delay with room effect Delay period 375ms Rev decay time 210ms 14 REV DELAY4 Delay with room effect Delay period 277ms Rev decay time 150ms 15 REV CHORUS1 Simulate the sound effect achieved by rotating horn speakers Chorus rate 3 67Hz and a bass cylinder Rev decay time 290ms 16 REV CHORUS2 Simulate the sound effect achieved by rotating horn speakers Chorus rate 3 02Hz and a bass cylinder Rev decay time 150ms 7 TECHNICAL SPECIFICATION Input channels Microphone Input Electronically balanced discrete input configuration Frequency response 10Hz to 55kHz 3dB Distortion THD amp N 0 05 at 4dBu 1kHz Distortion THD amp N Impedances Microphone Input 1 4kOhm Channel Insert return 2 5kOhm All other inputs 10kOhm or greater Tape out All other outputs Equalization Hi sheing TI DSP Section Type of effects imi soc E Controls 16 position PRESET selector CLIP LED MUTE SWITCH with LED indicator Main Mix Section Noise Bus noise MONITOR max out FX Sends max out Amplifier Section Output Power 150W RMS Nominal power Frequency Response Output Impedance Main voltage USA Canada 100 120V 60Hz 210 240V 50Hz U K Australia 240V 50Hz 260 waits 100 120V T4A 21 0 240V T2A 216 5x143 5x152 5mm LxWxH 8 5 x5 6 x6 Net Weight 9 5kg Shipping Weight 11 34 kg Vo
7. mix You can also use it as the extra auxiliary inputs 4 17 FX SEND This jack is used to send out the signals from AUX bus 4 18 DSP SECTION Your PBM4 features the special 16 preset digital effect further details please refer to following content PRESETS Adjust this knob to select the right effect you wish to perform There are total 16 options for you WARM HALL BRIGHT HALL WARM ROOM BRIGHT ROOM VOCAL 1 VOCAL 2 VOCAL 3 PLATE STEREO STEREO DELAY2 REV DELAY1 REV DELAY2 REV DELAYS REV DELAY4 REV CHORUS1 and REV CHROUS2 AUX DFX RET This control is used to adjust the volume of FX RETURN DSP MUTE This switch is used to activate deactivate the effect facility Sometimes you can also use the FOOTSWITCH jack for convenient operation CLIP MUTE LED This LED lights up when the input signal is too strong In case of the digital effect module being muted this LED also lights up 4 19 REAR PANEL POWER ON OFF This switch is used to turn the main power ON OFF AC INLET with FUSE 2A Use it to connect your PBM4 to the main AC with the supplied AC cord Please check the voltage available in your country gt FUSE2A AC 230V 50 6 and how the voltage for your PBM4 is configured OHz before attempting to connect your PBM4 to the main AC 5 INSTALLATION AND CONNECTION Ok you have got to this point and you are now in the position to successfully operate your PBM4 Ho
8. V DELAY1 12 REV DELAY2 10 g 8 0 10 13 REV DELAY PRESETS AUX DFX te REV 08057 FX RETURN 1 2 POWER AMPLIFIER MONITOR OUT FOOTSWITCH OUTPUT MIN LOAD 8Q 4 8 GRAPHIC EQ 9 Your PBM4 is equipped with a graphic equalizer and provides 7 band fader controls these faders you can boost or attenuate the selected frequency by 15dB at a preset bandwidth When all faders are at the center position the output of the equalizer is flat response They are used to modify the frequency contour of a sound The EQ function will be activated automatically as soon as you operate your PBM4 4 9 MAIN MIX LEVEL CONTROL This control is used to adjust the overall volume of main mix output 4 10 MAIN MIX LEVEL LED The 4 segment LED meter is used to indicate the main mix output level 4 11 OPERATING LED This LED indicates when the power is switched on in your PBM4 4 12 POWER AMPLIFIER OUTPUT The both jacks are used to output the main mix signal to external passive speaker the minimum load is 8 ohms 4 13 MONITOR OUTPUT This jack is used to connect the input of external monitor amplifier or active monitor speaker 4 14 MONITOR LEVEL CONTROL This control is used to adjust the level of monitor output 4 15 FOOTSWITCH You can connect an external footswitch to turn on off the onboard effect module It is a 1 4 phone jack 4 16 FX RETURN This jack is used to return the sound of an effect unit to the main
9. d 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 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 PREFACE Dear customer Thank you for choosing the ALTO PBM SERIES MONITOR PBM4 which is the result of our ALTO AUDIO TEAM s endeavours For the ALTO AUDIO TEAM music and audio are more than a profession it is a passion and an obsession 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 ALTO line represents unparalleled analogue and digital products made by musician for musicians With our de sign 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 pu
10. eakerx2 4 CONTROL ELEMENTS HILIMSLOOJ Et GNIS Uu BEEN e NIVIN VINdd YOLINOW CSNYOHD 15140 AJY vAV 140d Aad 4 LAV 14d Add M OANALS A HERE NM AT 481 210718 gt WOO 1 INOO3 WHVM TIVH TIVH WHVM v7 CO SF 10 OD 138 X4Q Xnv 51383 did 08 AYOT NIN 1141190 51345444 9L 69 MSC BEBNENENME 98 NI SIN ay Wy ISion 129 3NI 1 NI 3dYL 0 NO 9 o e 1504 201 apo SPSLe 8 81 zH08 M ei JZ MOIT P 2 1 7 4 1ed NI 2IIN Wy 9 eq 3NI 1 ic Wy 9 eq ANIT leper cHO 164 NI 2IIN eq NI 2IIN Gy Wy 3SIoN eq 3NI 1 ELET O 9 1504 8 901 4 454 5 apo SPSI ZHOS itty 0 MOIT S apo ZUM M a 7 4 5 of bes e ee 9 1504 TY yxnv
11. g or absence of this card will void your warranty service 2 RETURN NOTICE 2 1 In case of return for any warranty service please make sure that the product is well packed in its original shipping carton and it can protect your unit from any other extra damage 2 2 Please provide a copy of your sales receipt or other proof of purchase with the returned machine and give detail information about your return address and contact telephone number 2 3 A brief description of the defect will be appreciated 2 4 Please prepay all the costs involved in the return shipping handling and insurance 3 TERMS AND CONDITIONS 3 1 ALTO warrants that this product will be free from any defects in materials and or workmanship for a period 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 ALTO may repair or replace this product at its own option at no charge to you for parts or for labor in accordance with the right side of this limited warranty 3 4 This warranty does not apply to the damages to this product that occurred as the following conditions e Instead of operating in accordance with the user s manual thoroughly any abuse or misuse of this product e Normal tear and wear e The product has been altered or mod
12. ified in any way e Damage which may have been caused either directly or indirectly by another product force etc e Abnormal service or repairing by anyone other than the qualified personnel or technician And in such cases all the expenses will be charged to the buyer 3 5 In no event shall ALTO be liable for any incidental or consequential damages Some states do not allow the exclu sion or limitation of incidental or consequential damages so the above exclusion or limitation may not apply to you 3 6 This warranty gives you the specific rights and these rights are compatible with the state laws you may also have other statutory rights that may vary from state to state SEIKAKU TECHNICAL GROUP LIMITED SEKAKU ELECTRON INDUSTRY H K CO LTD No 1 Lane 17 Sec 2 Han Shi West Road Taichung 40151 Taiwan http www altoproaudio com Tel 886 4 22313737 email alto altoproaudio com Fax 886 4 22346757 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 NF02055 1 0
13. lume 2 8CFT Power supply Power Consumption 8 BLOCK DIAGRAM 13441 YOLINON 5 L q 1NO YOLINOW O C 1 13441 NI LZ 1 34 1 3dV L gt gt 314113 zHX39r l 1 zHXe 9 1 i ZHOoor L__ zHo9t L_ zugo d 1 4 03 395VLS LNIOd YAMOd cavas xnv O S 0 4 32018 XIN7vVIN8d OLIV 514 514 NIVN CNAS 44 450 NIVIN 9 dsa HOLIMSLOOA 51383 Sid NIVN 138 gt Gnas 13A31 gt gt IH i me 01 20 1 X3 P THO INdNI apor oe Z IH apoz ov O e Z MO1 3 WOLNVHd ue 9 WARRANTY 1 WARRANTY REGISTRATION CARD To obtain Warranty Service the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status so as to purport a more effective and efficient after sales warranty service Please fill out all the information carefully and genuinely miswritin
14. ntrol Via the FX SEND socket the AUX1 signal can be sent to an external effect device 4 5 EQUALIZER Your PBMA features a 2 band equalizer allowing you to adjust the high and low frequencies separately on each mono channel Both bands provide up to 15dB of boost or cut HIGH This is the treble control You can use it to get rid of high frequency noises or to boost the sound of cymbals or the high harmonics of the human voice The gain range goes from 15dB to 15dB with a center frequency of 12kHz LOW 6 This is the bass control It is used to boost male voice or kick drum and bass guitar Your system will sound much bigger than what it is The gain range goes from 15dB to 15dB and the center frequency is 80Hz 4 6 TAPE IN Your PBM4 features dual RCA jacks left and right If you wish to listen to your monitor from a tape recorder DAT or cassette please use these tape input jacks 0dB HIGH lt 12KHz 15dB 15dB 0dB 15dB 15dB 0dB DSP FX AUX post M 9 Q 0 10dB LINE IN bal LOW NOISE Pp MIC IN bal TAPE OUT 4 7 TAPE OUT Via these jacks you can route the main out signal into a tape recorder or DAT for recording MAIN 9 289 2 5K 6 3K 16K CLIP PRESETS 1 WARMHALL MUTE 3 WARM ROOM 4 BRIGHT ROOM 5 VOCAL 1 6 VOCAL 2 7 VOCAL 3 fa 1 9 8 PLATE 9 STEREO DELAY1 10 STEREO DELAY2 11 RE
15. rchasing our ALTO products you become the most important member of our ALTO 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 develop ing future products for you We guarantee you our commitment for quality continual research and development and of course the best prices The ALTO PBM4 is extremely flexible ultra low noise which is configured with four MIC line inputs channels 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 ALTO PBM4 possible especially to our designers and ALTO 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 ALTO AUDIO TEAM TABLE OF CONTENTS 1 INTRODUCTION A FEATURE 9 A HE 4 cmd e q rqe 5 a CONTR OC ELEMENT ee ee ee ee 6 4 1 MONO INPUT CHANNELS 4 2 15V PHANTOM POWER SWITCH 4 3 LEVEL CONTROL 4 4 DSP FX AUX1 POST CONTROL 4 5 EQUALIZER 4 6 TAPE IN 4
16. tion of this manual carefully in this way you will get the best out of your PBMA 2 FEATURES The PBM4 is designed for professional application It provides the following features e Digital amplifier technology offering high power and a very dynamic sound band graphic EQ for MAIN MONITOR e 4 MIC line input channels with balanced XLR and TRS inputs e Ultra low noise discrete MIC pre amps with 15 phantom power e 2 band EQ on mono input channels e Each input channel with level control FX send for built in or external effects on stage monitor mix e Tape in out e 16 preset digital effect processor POWER OUTPUT 150Wrms 8Ohm 3 QUICK START 3 1 Please check the AC voltage available in your country before connecting your PBM4 to the AC socket 3 2 Be sure that the main power is turned off before connecting the monitor to the AC socket Also you should make sure that all input and output controls are turned down This will avoid damage to your speakers and avoid excessive noise 3 3 Please connect one side of the passive speaker cable to the POWER AMPLIFIER OUTPUT of your PBM4 and the other side to the input of your passive speaker cabinet 3 4 Complete these connections as illustrated 3 5 Before connecting and disconnecting the 4 always turn off the power switch 3 6 Do not use solvents to clean your PBM4 A dry and clean cloth will be OK POWER AMPLIFIER OUTPUT MIN LOAD 80 Passive sp
17. wever we advise you to read carefully the following section to be the real master of your own monitor Not paying attention enough to the input signal level to the routing of the signal and the assignment of the signal will result in unwanted distortion a corrupted signal or no sound at all So you should follow this procedure for every single channel e Turn down all input and output controls e Connect phantom powered microphones before switching on the 15Volt phantom power switch e Set the output level of your PBM4 at no more than 75 Now set the MONITOR level at no more than 50 In this way you will be able to hear later what you are doing by connecting a pair of powered monitor speakers Position EQ controls on middle position Now repeat the same sequence for all input channels The main LED meter could move up into the red section In this case you can adjust the overall output level through the MAIN MIX LEVEL control 5 1 AUDIO CONNECTIONS You can connect unbalanced equipment to balanced inputs and outputs Simply follow these schematics Ring Right Signal Sleeve Tip Ring Strain Clamp Tip Left Signal Sleeve Ground Screen Use for Headphone 1 4 Stereo TRS Jack Plug Sleeve Tip Strain Clamp Tip Signal Sleeve Ground Screen Use for Mono Line In Mono 1 4 Jack Plugs 1 4 Mono TS Jack Plug Ring Return Signal Tip Ring Sleeve Strain Clamp Tip Send Signal Sleeve Ground Screen

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