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-desc...
▓ ▓ ▓ ▓ 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...
■ 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. Do not place heavy objects on the amplifier, for it may cause it fall and may result in body injury...
3. Panel description front panel description 1. Power on indicator led 3. Power switch 2. Level indicator led rear panel description 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. Ea...
4. 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 ...
“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. If necessary, turn the gain control on the rear panel to what you desire. 8. Technical specification type booster amplifier model qsb-612e qsb-62...
