Malfunction repair
*
Do not initiate the connection process if the microphone operates appropriately. It can lead to the disconnection of the
microphone from the karaoke system.
*
Use only external USB power adapter (not included) to charge the microphones.
Microphone does not work while charging.
Make sure the accumulator is placed according to the polarity: "+" is supposed to be at the bottom.
Use included USB cable to charge microphone. Connect cable to charging port 5 from one side and to a 5V⎓1А or
5V⎓2А USB power adapter from other.
Microphone Receiver
Effective frequency range: 660-690 МHz
Working bandwidth: 30 МHz
Modulation: DQPSK
Power output (HF): 9 MW
Side emissions: < -50 dB (of the carrier level)
Antenna: internal
Number of channels: 16
Switching the channels: by the button on the microphone
Battery: lithium-ion battery, the typical size of 18500, 3.7 V, 1600 mAh.
Duration of the operation with the charged battery: > 10 hrs
Charging: through the USB-C port, 5 V, 0.5 А (for one microphone
Effective frequency range: 660-690 МHz
Working bandwidth: 30 МHz
Channel width: 300 kHz
Number of channels: 2 groups, 16 channels each
Dynamic range: 96 dB
Total distortion: < 0.1 %
Antenna: external, length — 11 cm
Frequency range (audio): 30 – 20 000 Hz with
frequency response unevenness ± 2 dB
Signal-to-noise ratio: 96 dB
Receiver sensitivity: - 95 dBm
Audio transmission latency: < 3 ms
Make sure EVOBOX is properly connected to the acoustic system.
Set up the general sound volume of the karaoke system and the microphone sound volume at the level of 75%.
If the recommendations above are observed, but the microphone produces no sound, please, connect* it to the
karaoke system (see "Microphone connection").
The antenna is not connected properly, or the karaoke system is misplaced. For the microphones to work efficiently and
correctly, the antenna should be placed vertically, and the karaoke system should be placed at least 0.5 m away from
the walls, floor, and metal surfaces.
External electromagnetic interference. To remove interference, switch the microphone to another channel (see
"Microphone connection").
The microphone is switched on but produces no sound
Poor signal or noise when playing
Failure to switch on a microphone
Technical characteristics
To Next Page
Loading...