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.
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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. The amplifier falls.
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Dust accumulation may result in fire or damage. Description QSM-5xx series, including QSM-503, QSM-506, and QSM-512, are economical mixer amplifiers designed for up to 3 microphones plus 3 line-in (CD, AUX, and Tuner), total 6 inputs application.
3. Panel Description FRONT PANEL DESCRIPTION 1. Power Switch 9. Mic. 3 Input 2. Master Volume Control 10. Mic. 2 Volume Control 3. Treble Control 11. Mic. 2 Input 4. Bass Control 12. Mic. 1 Volume Control 5. Aux Volume Control 13.
4. Features Multi-input Mixer Amplifier Up to 3 microphones 3 line-in input sources: CD, AUX, and Tuner Individual volume control of each input Master volume, Bass, and Treble control for the output. Over load, over temperature, and speaker short protection. 4 ohm, 8 ohm, 70V and 100V output Record output AC or DC power in...
Output Connection The output terminal is on the rear panel. The terminal connection can connect low impedance 4 ohm or 8 ohm, or high-level 70V or 100V speaker. Use only one of these output connections for corresponding speaker. Record Output Connection If there is the demand of recording, connect the input of the recorder to the record output on the rear panel of the amplifier.
8. Technical Specification Type Mixer Amplifier Model QSM-503 QSM-506 QSM-512 Output Power: 120W Supply Main Voltage AC 115V or 230V 50/60Hz Battery Voltage DC 24V Outputs 4Ω, 8Ω, 70V, 100V Record Output 1V@100Ω Frequency Response 50Hz ~ 15KHz ± 3dB Inputs Impedance Mic 1~3: 1.5mV, 600Ω...
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