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Rp300.000

UGREEN 90491 CM534 3.5mm Anti-interference Filter Audio Filter Common Ground Interference Isolator

Rp300.000
  • Kondisi: Baru
  • Min. Pemesanan: 1 Buah
  • Etalase: Semua Etalase
Garansi: 2-minggu

UGREEN 90491 CM534 3.5mm Anti-interference Filter Audio Filter Common Ground Interference Isolator

Instructions for eliminating interfering noise
Effectively remove interference noise in audio signal transmission, remove various occasional noises and eliminate interference noise

Audio common ground isolator:
This product is a common ground isolator, which is effective for the noise caused by the common ground between the sound source and the receiving device. The common ground means that the grounding points of the two devices are not at the same point. Due to the difference in grounding resistance, the sound is transmitted to the electrical equipment through the ground wire, forming interference, thus generating noise. For example, there is a kind of audio interference in the car, similar to the frequency of the whistle noise, which may even change with the engine speed. This is the common ground interference.

Common common ground interference examples:
1. After starting the car, the installed amplifier makes a current sound. For some models, the louder the oil, the louder the current sound. This product can be used.
2. In car applications, if the current sound is heard after installing Bluetooth player, or powering mobile phones, etc., this product can be used.
3. The audio cable from the desktop computer in the conference room to the amplifier is too long, and the current sound can be solved by this product.
4. When the laptop is connected to the projector, the video and audio produce noise. If the video interface is unplugged, the noise disappears. This product can solve the problem.
5. For the background noise of musical instruments, the current sound and noise generated when connected to the post-stage equipment, this product can be selected.
6. Computer amplifier, speakers, and CD: Use passive headphones to plug into the computer to listen to whether there is any noise. Use a mobile phone to plug into the amplifier and speakers to listen. If there is no noise when listening to both separately, it can be basically determined that the noise is caused by the common ground.
7. Other situations such as connecting a karaoke machine to an amplifier, laptop charging will produce noise in the middle of the microphone, some bar audio systems, school conference rooms, multimedia classrooms, etc., all of which have customer feedback that the problem can be solved.

Problems that cannot eliminate noise:
1. Some of the above are multiple interferences, such as electromagnetic/strong electric interference, which cannot be solved. Before purchasing, you can confirm the source of noise (a small tip, the earphones have a similar micro noise reduction module, which can be used as a rough basis for judgment.
2. Because everyone has different expectations and perceptions of isolation effects, some customers think it is good, and some customers think it is not good.

FAQ:
What is common ground noise?
When the audio source and the car/home audio system use the same power supply, the noise caused by the ground loop. For example: your audio source device (such as a mobile phone) is connected to the car for charging while playing music in the car through the audio cable. At this time, the positive current enters your device through the charging cable, and part of the negative current will inevitably be transmitted back to the car through the audio cable, causing the car audio to emit a squeaky sound, thus affecting the listening effect.

How to determine whether it is caused by common ground?
Use only an audio cable to connect the phone to the car's AUX port and play music. If the noise disappears, it can be confirmed that the noise is caused by the common ground.

Specification:
Brand: UGREEN
Product Name: Audio Isolator
Model: CM534
Function: Isolate two audio devices on the same ground
Eliminate the noise and current noise generated by the common ground of equipment
Cable length: 50cm
Response frequency: 20Hz-20KHZ@±0.5dB
Signal to Noise Ratio: >90dB
Support equipment: speakers, amplifiers
Material: PC, ABS, TPE
Packing size: 85*130*25mm
Net weight: 31g
Weight including packaging: 55g
Packaging: Boxed

Package Contain:
1x Ugreen Noise Filter

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