Assessments - 3, GPA: 4.3
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Facilidade de uso
The volume can be controlled in two ways; using the “Up” “Down” buttons on the mixer panel or using the RC-300 infrared remote control. The remote sensor must be used in front of the speaker as the sensor is behind the speaker grille. Recommended Set-up Procedure Ideally the master volume should be at maximum volume before the wireless receiver and microphone volumes are adjusted to the desired loudness. Since there are always at least two (2) volume controls to contend with, it is suggested that prior to turning the power on the UHF receiver volume controls be set at “10 o’clock”. Also set the microphone volume controls at “10 o’clock”. Turn on the main power switch and use either a wireless microphone or cabled microphone to adjust the master volume. Tape & CD The main power switch does not control the CD and Tape recorder. A separate power switch is combined with the Tape/CD volume control to limit battery drain when the Tape or CD are not being used. Wireless Receivers There are two (2) independent combination XLR/1/4” jacks for using microphones with cables. Each jack has a volume control which effects the loudness of both wired and wireless microphones. Also each has a “Voice/Music” switch. On “music” program the sound is full fidelity, while on “voice” the sound is tailored to give maximum projection while limiting battery drain. 3 Operation continued Line In Insert both RCA plugs into the RCA jacks when using a stereo input. The left and right channels are combined so no program material is lost. If the source is monaural, either RCA jack can be used. The Line In volume control is used to increase or decrease the level of the input signal. Line Out The two RCA jacks are used to connect to the input of another piece of equipment such as a tape recorder, mixer or another amplified speaker. The outputs are monaural and volume level will depend on the volume of the source. For example, the tape or CD player level is controlled by the tape/CD volume control. Lie out is independent of the Master Volume Control. Tone Controls The separate base and treble controls provide a wide range of adjustment for increasing or decreasing either the bass or treble from “flat” frequency response. The center or “12 o’clock” position is flat. Speaker Mute Switch Engaging this switch will cut off the sound of all speakers, internal and external, except as explained in the section under “PA916-PS operation”. Voice Priority This feature is used for voice override of the music program when using a microphone. The “ducking” circuit attenuates the music when a person speaks into the microphone. After a 3 second delay in the speech, the music returns to the previous level. 4 Wireless Operation Feedback is a shrill screeching sound produced by the speaker system when a microphone is being used too close to the front of the speaker. The microphone picks up the sound of the speaker system and it becomes reamplified. It is a self- sustaining loop which can damage the system if allowed to continue, not to mention the annoyance caused to persons nearby. Always stand 4 to 6 feet from the speaker to minimize the opportunity for feedback from the speaker system. Wireless UHF Receivers Wireless receiver “A” is preset at the factory for channel 4 and receiver “B” is set on channel 6. There are three (3) LEDs on the receiver; power (green), RF reception (red) and Audio reception (amber). There are also LEDs on the front of the speaker above the grille making it easy to see if the microphone and receiver are working properly. A red LED indicates RF (radio frequency) from the microphone, while an amber LED indicates audio. Wireless Transmitter The PowerPro PA916 incorporates a 16 channel UHF transmitter with its own power s...
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Speakers - POWERPRO PA916 (995.35 kb)