Datavideo DAC-80 2 Channel Audio 1:1 transformer

Datavideo DAC-80 2 Channel Audio 1:1 Transformer – Eliminates Ground Loop Noise

The Datavideo DAC-80 is a 2 channel audio isolation transformer built to remove audio noise caused by ground loops. It isolates interequipment grounds without adding power requirements, and it remains transparent to the audio signal while preserving low distortion and minimal signal loss.

Key features

• 2 Channel Audio Isolation Transformer — provides isolation for two audio channels in a simple 1:1 transformer configuration.
• Eliminates ground loop hum — breaks the interequipment ground path to stop hum and noise caused by differing grounding points between devices.
• Very low distortion and close to zero attenuation — designed to remain transparent to the audio signal while maintaining audio integrity.
• No power needed — operates without external power, simplifying installation and use.
• Easy to use — straightforward to integrate between pieces of equipment to reduce noise issues.

How it works

Normal voltage differences between system grounding points on different pieces of equipment can create small AC currents that flow in the shield of audio cables. These currents often produce audible hum in audio signals. The DAC-80 interrupts the interequipment ground path, which greatly increases the rejection in the input circuits. As a result, it reduces hum while remaining transparent to the audio passing through.

When to use it

• Use the DAC-80 when you hear hum or buzz that appears after connecting multiple devices with different ground potentials.
• Install it between equipment to break ground loops and improve rejection of unwanted noise without changing the audio character.
• Choose it when you need an inline solution that does not require additional power or complex setup.

FAQ

• Question: Do I need to supply power to the DAC-80?
  Answer: No. The DAC-80 requires no external power to operate, which makes it simple to integrate into existing setups.
• Question: How many channels does the unit support?
  Answer: The DAC-80 supports two audio channels, provided via its 2 channel isolation transformer design.
• Question: Will the DAC-80 change my audio quality or levels?
  Answer: The device is designed for very low distortion and close to zero attenuation, so it remains transparent to the audio signal while reducing unwanted hum.
• Question: What kind of problem does this product fix?
  Answer: It addresses hum and noise caused by ground loops. By breaking the interequipment ground path, it greatly increases input-circuit rejection of those unwanted currents.