Manual QSB-612E 624E - Pa
Contents
1. DONOT operate the amplifier for the extended period of time with the sound distorting It is an indication of malfunction which can cause heat and result in fire Switch the power off and unplug the power supply plug from the AC outlet for safety purposes when cleaning or leaving the amplifier unused for 7 days or more Fire or electric shock may occur If the dust accumulates on the power supply plug or in the wall AC outlet fire may result in Clean it periodically In addition make sure the plug is inserted in the wall outlet securely e Contact your local dealer to clean the dust it the dust has accumulated in the amplifier for a long period of time Dust accumulation may result in fire or damage 2 Description QSB 6xxE series booster amplifiers cover models from 120W RMS to 480W RMS This manual is to for 120W QSB 612E and 240W QSB 624E QSB 6xxE series is the most easy to use booster amplifier It has XLR and phone jack inputs And it also has XLR and phone jack output for the connection to another amplifier It equips speaker screw terminal for the direct connection to the speaker of 8 ohm or 70V or 100V speaker The sensitivity selection switch on the rear is for the sensitivity of 100mV or 1V selection Another slide switch is for Mono or Parallel selection The gain control is for the control of input signal Besides 115 230V AC power source QSM 6xxE series booster amplifier also accept DC 24V b2. G THIS APPLIANCE MUST BE EARTHED CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN
3. USER MANUAL QSB 612E QSB 624E BOOSTER AMPLIFIER 1 Security Precautions Carefully to READ the instruction in this manual before use Certainly to OBSERVE the INSTRUCTION in this manual regard convention of safety symbols and messages Please KEEP this user MANUAL nearby for anytime reference Safety symbol and Message Conventions Below described safety symbol and messages are to prevent bodily injury and property damage Before operating the amplifier read this manual first so you completely knowing the potential safety hazard and understanding the meaning of the safety symbols and messages Indicates a potentially hazardous situation which if AN WA R N N G mishandled could result in death or serious body injury and or property damage Indicates a potentially hazardous situation which if AN CA U T O N mishandled could result in moderate or minor body injury and or property damage N WARNING When Installing the Amplifier DO NOT installing or mounting the amplifier in unstable locations such as on the rickety table or the slanted surface It may result in the amplifier falling down and causing body injury and or property damage Be sure to ground to the safety ground earth terminal to avoid electric shock Never to ground to a gas pipe for tragic disaster may occur Use the amplifier only with the voltage specified on the amplifier Using the voltage higher than s
4. ase ensure correct polarity 6 Connection e Input Connection Connect signal source to input jack by using phone jack cable e Output Connection Connect output jack to other amplifier by using phone jack cable Speaker Output Connection The speaker output screw terminal is on the rear panel It can connect low impedance 8 ohm or high level 70V or 100V speaker Use only one of these output connections for corresponding speaker Sensitivity Selection Switch Put the switch on 100mV or 1V position for corresponding sensitivity of signal source from other device PARALLEL MONO Switch Put the switch on PARALLEL or MONO position for the need 7 Operation After all connections are completed turn on the power on the rear panel to what you desire 8 Technical Specification If necessary turn the gain control Type Booster Amplifier Model QSB 612E QSB 624E Output Power RMS 120W 240W Power Supply Main Voltage AC 115V or 230V 50 60Hz Battery Voltage DC 24V Total Harmonic Distortion lt 1 1KHz rated power Sensitivity 1V 100mV O 10K ohm Outputs 80 70V 100V Signal to Noise Ratio4 86 dB Indicator Power On Level AC Power Consumption 320W 640W DC Power Consumption 8A 15A Dimensions mm 88 H x 425 W x 305 D Weight 8 2 Kgs 10 6 Kgs Mounting options Desktop or 19 rack WARNIN
5. attery power source as backup power To ensure the amplifier working normally and safe operation it has speaker short over temperature and overload protection function QSM 6xxE series is simple and easy to use booster amplifier 3 Panel Description FRONT PANEL DESCRIPTION 1 Power On Indicator LED 3 Power Switch 2 Level Indicator LED REAR PANEL DESCRIPTION 24V COM 70V 100 o Cisielaisisieiel JSE 250V TSA 1 AC Voltage 115V 230V Selection Switch 8 XLR Output 2 AC Fuse 9 Parallel Mono Switch 3 AC Power Input Socket 10 Sensitivity 100mV 1V selection Switch 4 Earth Connection Screw 11 Gain Control 5 DC Power Supply Terminal 12 XLR Input 6 Speaker Output Terminal 13 Phone Jack Input 7 Phone Jack Output A Features Easy to use booster Amplifier XLR and phone jack input with sensitivity selection switch Input gain control Parallel Mono selection 8 ohm 70V and 100V speaker output XLR and phone jack output Overload over temperature and speaker short protection AC or DC power in 2U height 19 rack or table mounted 5 Power Source AC Power Source The supply transformer has been designed for AC 230V 115V 10 50 60 Hz e DC Power Source Battery Connection 24Vdc When using external batteries ground the amplifier via the screw terminal Electrical stability of the system will be improved by providing a good earth ground When connecting batteries ple
6. e amplifier cover to prevent fire or electric shock for there are high voltage components inside the amplifier N CAUTION When Installing the Amplifier DO NOT remove nor plug in the power supply plug with wet hands for it may cause electric shock When unplug the power supply cord be sure to grasp the power supply plug DO NOT pull on the cord itself Operating the amplifier with damaged power supply cord may cause fire or electric shock Avoid installing the amplifier in humid or dusty places the area exposed to the direct sunlight locations generating smoke or steam or the spot near the heaters It may result in fire or electric shock When moving the amplifier be sure to remove its power supply cord from the wall outlet Moving the amplifier with the power cord connected to the outlet may cause damage to the power cord and resulting in fire or electric shock When removing the power cord be sure to grasp its plug to pull DO NOT Block the ventilation slots of the amplifier chassis It will cause the temperature rising and result in fire When Using the Amplifier Make sure that the volume control is turned to minimum position before power is switched on Loud sound produced at high volume when power is switched on may impair hearing DONOT place heavy objects on the amplifier for it may cause it fall and may result in body injury and or property damage Besides the object itself may cause damaged or body injury
7. pecified may cause fire or electric shock DO NOT cut twist damage nor modify the power supply cord In addition avoid using the power cord close to heaters and don t place heavy object including the amplifier itself on the power cord for it may cause fire or electric shock DO NOT expose the amplifier to rain or the environment where it may be splashed by water or other liquids for doing so it may cause fire or electric shock When using the Amplifier When found following irregular situation during amplifier is in use immediately switch off the power disconnect the power supply plug from the AC outlet Don t try to operate the amplifier again Contact your local dealer to check the amplifier S SNR SN The amplifier falls Amplifier is malfunction Water or any metallic object gets into the amplifier The smoke or strange smell coming from the amplifier The power supply cord is damaged such as exposure of the core disconnection etc DO NOT put cups bowls or other containers with liquid or metallic object in it on the top of the amplifier If they spill accidentally into the amplifier it may result in fire or electric shock DO NOT Touch the power supply plug during thundering and lightning for it may result in electric shock DO NOT insert or drop the metallic objects or flammable materials into the ventilation slots of the amplifier for it may result in fire or electric shock DO NOT open nor remove th
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