Debra X7 UHF Wireless Microphone System User Manual
- June 14, 2024
- Debra
Table of Contents
**Debra X7 UHF Wireless Microphone System User Manual
**
Key / Interface Introduction
- Signal Antenna
- Signal and Level lamp
- Wired mic interface
- Wired mic volume
- Wireless mic A, B volume
- Reverb volume
- Music volume
- Power switch
- Type C power interface
- 3.5mm audio input
- Coaxial audio input
- Optical audio input
- 3.5mm audio output
- Optical audio output
- Mic information display
- Mic switch
- Frequency switching key
- battery holder (AA battery 2)
Bluetooth connectivity
- Open the Bluetooth of the playback source device and search for the device.
- Search the microphone host device Bluetooth (Bluetooth name: X7).
- The playback source device is paired to connect the microphone receiver, and the connection is successful.
[Note] The audio cable used for connection may depend on the specification of the amplifier or powered speaker.
Connect TV karaoke
- Connect the provided audio cable from the audio output jack on the TV to the INPUT jack on the receiver unit.
- Connect the audio input of the OUTPUT jack of the receiver with the audio cable.
- Connect the receiver to the power supply, install the AA battery into the microphone, and then use it.
Features
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Super noise reduction function, high signal-to-noise ratio.
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Strong anti-interference, high-performance suppression of noise output.
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The corresponding frequency range is wide and the distortion is small. 4. The hand-held switch has no impact, ensuring the safety of the post-
stage power amplifier system and speakers. 5. Perfect working status indication 0and power indication. -
Practical distance, the ideal environment is more than 50 meters, and the 0complex environment radius is 30 meters.
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Dual-channel design, two handheld microphones can be used at the same time without interfering with each other.
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Using frequency synthesis technology, it can be more widely applied to switching in a wider range.
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Used for various purposes such as network karaoke, TV singing, karaoke hall, home entertainment, etc.
List of items
- Receiver*1
- Handheld microphone*2
- Power cord*1
- Rca-3.5mm audio cable*1
- Optical fiber cable*2
- Coaxial cable*1
- 3.5mm audio cable*1
- Rubber Mic anti-skid ring*2
Household Type Karaoke System
D Debra Audio X7 DSP wireless microphone karaoke system is a portable household KTV handheld wireless microphone, with Bluetooth 5.0 and optical input and output interface, easy to connect to smart TV or home audio and video equipment, with DSP reverberation adjustment on the front, very suitable for home karaoke and multi-person entertainment, conference speech and other purposes.
Receiver
- Receiving frequency: UHF
- Sensitivity: 2mV
- Audio output: 800mV-1.4V
- Receive channel: 2
- Power consumption: 3W
- Frequency stability: <0.002%
- Interference frequency ratio: > 90dB
- Signal to noise ratio: > 95dB
- Working range: open space 30 to 50m
- Supply Voltage: 5V
Handheld Mic
- Carrier frequency: UHF
- Transmit power: 10mV
- Harmonic: <Main wave 40dB
- Current consumption: <25mA
- Standard. Fixed frequency
- Pickup: 6000 single directivity Frequency stability: <0.002% Battery:
- *2AA/MIC(not included)Antenna:** built-in
Connect the computer
- Connect the audio output port of the receiver device to the computer microphone audio input port.
- The computer’s audio output connector is connected to the speaker.
- Connect the receiver to the power supply, install the AA battery into the microphone, and then use it.
Connect the set-top box
- Connect the provided audio cable from the output jack of the set-top box to the INPUT jack of the receiver.
- Reconnect the audio input jack and output jack of the receiver with the audio cable.
- Connect the receiver to the power supply, install the AA battery into the microphone, and then use it
TROUBLESHOOTING
Check the following items before contacting a D Debra dealer. If the symptoms are not improved, contact us.
NO sound, the receiver’s RF light does not light up.
- Make sure the transmitter power switch is on and the receiver is plugged in. (Push up the switch of the hand-held microphone)
- Check that the battery is installed. And make sure the battery is fully charged.
- Check that the frequency on the transmitter matches the frequency on the receiver.
No sound, the receiver’s RF light is on.
- Turn up the receiver audio volume control. Also turn up the volume control of other connected devices.
- Check that the connection between the receiver and the mixer or other equipment is correct.
Receiver signal is noisy or contains extraneous sounds with transmitter on.
- Check if the battery is low.
- Check for other sources of RF interference causing interference.
- If using a guitar or other musical instrument, check the connections. If multiple transmitters are used together, it is possible that multiple transmitters will operate on the same frequency.
- Switch the frequency of the microphone to avoid interference of related frequencies.
- Signal may be too weak. Reposition the antenna. Move them closer to the transmitter if possible.
Noise from receiver with transmitter off.
- Check for other sources of RF interference causing interference.
- It is recommended to replace the audio cable with a better quality.
- Test other equipment connected to the receiver for problems.
Momentary loss/stop of sound as transmitter is moved around performing area.
- Reposition the receiver and perform another “drill” test and observe the RF indicator, If audio loss persists, mark these “dead spots” in the performance area and avoid them during the performance.
CAUTIONS AND WARNINGS
WARNING
CAUTION: To reduce the risk of electric shock, do not remove cover (or back) No user-serviceable parts inside. Only refer servicing to qualified service personnel.
**** The lighting flash & arrowhead symbol within an equilateral triangle is intended to alert you to the presence of danger.
**** The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and servicing instructions.