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                        Instruction Manual
SUB-1200
120W 12" POWERED SUBWOOFER                                                                                                                                                                                                                                                                                                                                                                                                                                                              
                    
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                        Safety Instructions 8. Ventilation - The appliance should be situated so its   location does not interfere with its proper ventilation. For   example, the appliance should not be situated on a bed,  CAUTION  sofa, rug, or similar surface that may block the  RISK OF SHOCK  ventilation slots. 9. Heat - The appliance should be situated away from CAUTION: To reduce the risk of electric shock,   heat sources such as radiators, heat registers,  do not remove cover (or back). No user-  stoves, or other
                    
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                        CAUTION: Read this before operating your unit CAUTION The apparatus is not disconnected from the AC power source so long as it is connected to the  wall outlet, even if the apparatus itself is turned off. To fully insure that the apparatus is indeed  fully void if residual power, leave unit disconnected from the AC outlet for at least fifteen  seconds. 1.   To ensure the finest performance, please read this manual carefully. Keep it in a safe place for future        reference.  2.   Install your
                    
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                                                   Welcome….         Thank you for purchasing the SUB-1200 from VocoPro, your ultimate choice in  Karaoke entertainment!  With years of experience in the music entertainment business,  VocoPro is a leading manufacturer of Karaoke equipment, and has been providing  patrons of bars, churches, schools, clubs and individual consumers the opportunity to  sound like a star with full-scale club models, in-home systems and mobile units.  All our  products offer solid performance 
                    
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                        Listening For A Lifetime Selecting fine audio equipment such as the unit you’ve just purchased is only the start of  your musical enjoyment. Now it’s time to consider how you can maximize the fun and  excitement your equipment offers. VocoPro and the Electronic Industries Association’s  Consumer Electronics Group want you to get the most out of your equipment by playing it  at a safe level. One that lets the sound come through loud and clear without annoying  blaring or distortion and, most impo
                    
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                        Before Getting Started: Things to Consider Safety 1. Power Source - Operate only from a power source as directed on the unit or in the operating instructions. 2. Polarization - If your unit is equipped with a polarized alternating current line plug (a plug having one      blade wider than the other), this plug will fit into the power outlet only one way. This is a safety feature. If        you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still f
                    
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                        Installation Installation Environment 1. Water and Moisture - Do not use this unit near water – for example near a bathtub, washbowl, swimming pool,       or the like. Damp basements should also be avoided. 2 . Condensation - Moisture may form in the unit in the following cases:     • Immediately after a heater has been turned on     • In a steamy or very humid room.     • When the unit is suddenly moved from a cold environment to a warm one If moisture forms inside this unit,          it may no
                    
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                        Getting Connected   Unpacking Prior to beginning the connection process, carefully remove the unit from its shipping box. It is recommended to  reserve the original shipping material in the event that the unit needs re-shipping. Included in the box you will find  the Sub-1200, this instruction manual and an AC power cord. Subwoofer connections There are a couple of methods for connecting your Sub-1200 to your audio system. One method uses MDP  speaker cables, the other method uses RCA interconne
                    
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                        		 Getting Connected   Connecting to an amplifier with no pre-amp outputs If no low-level Pre-Amp outputs are available, you need to run speaker cables from your main amplifier to the  Sub-1200. Run the main LEFT and RIGHT speaker cables to the Sub-1200 HI-LEVEL IN binding posts. Be sure  to double check that the polarity (-/+) on the receiver or amplifier matches the polarity on the binding posts of the  SUB-1200.  Also, make sure that the outputs on your main amplifier are true ground, otherwi
                    
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                        Rear Panel Descriptions and Fuctions 4 5 6 3 0 PHASE 180 R OFF AUTO ON 2 POWER L LEVEL CROSSOVER LINE OUT LINE IN FREQUENCY 1 HI LEVEL OUT HI LEVEL IN LEFT RIGHT LEFT RIGHT + - - + + - - + 8 7 115V CAUTION RISK OF ELECTRICAL SHOCK 10          DO NOT OPEN ! 230V 9 LA VERNE CALIFORNIA U.S.A. WWW.VOCOPRO.COM 1. POWER switch – The power switch has three positions: OFF - AUTO - ON. While the OFF and ON positions      are self-explanatory, the AUTO position instructs the Sub-1200 to remain in STANDBY 
                    
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                        Setting Up the Sub-1200   Adjusting the Crossover Setting  The Sub-1200’s built-in crossover can be used as a variable low-pass filter for customizing subwoofer output.  The available settings are 20Hz, 40Hz, 80Hz and 120Hz. If you would like the subwoofer to only output extremely  low frequencies, you would want to select a lower frequency setting i.e.  20Hz or 40Hz.  If you would like the  subwoofer output to include some higher frequencies as well as low frequencies, you would want to select 
                    
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                        Troubleshooting PROBLEMS CAUSE SOLUTIONS Humming or buzzing noise. You may have a ground loop Try using a cheater plug. Do NOT ground  problem. the grounding tab on the cheater plug!  That would defeat the purpose of the  cheater plug for this application. There may be a problem with Disconnect all interconnect cables from  other external equipment. the Sub-1200 and any external  equipment. If hum goes away when  interconnects are disconnected, hum is  coming from the rest of your equipment.  Ad
                    
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                        Glossary of Terms Digital Echo- Digital echo is a synthetically processed sound effect that mimics natural echo. Echo in general is  the "bouncing" of waves back and forth between 2 surfaces. This effect gives a spacious or ambient feeling that  works great with vocals. Repeat- Repeat is facet of the echo process. Repeat refers to the frequency of echoes within a period of time.   Delay- Delay is also a facet of the echo process. Delay refers to the amount of time that exists between echoes.   V
                    
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                        Glossary of Terms Y-Adapter - Any type of connection that splits a signal into two parts. An example would be a connector with one  male RCA jack on one end, and two female RCA jacks on the other end.   Woofer - A speaker, (driver), used for low-frequency reproduction. Usually larger and heavier than a midrange or  tweeter.  Midrange - A speaker, (driver), used to reproduce the middle range of frequencies. A midrange is combined with  a woofer for low frequencies and a tweeter for high frequenci