Many large amplifiers have a really annoying mechanical hum (emitted from the toroidal transformer itself). You can hear it when you place your ear close or next to the chassis. This is caused by a small amount of DC voltage in the mains which makes its way through to the mains transformer, it will become ‘saturated’ and start to hum like a trooper. The DC Blocker is a clever device that you place at the IEC (at the rear power inlet) and as its name implies, it stops DC from getting into the amplifier. It therefore eliminates amplifier transformer hum.
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Many large amplifiers have a really annoying mechanical hum (emitted from the toroidal transformer itself). You can hear it when you place your ear close or next to the chassis. This is caused by a small amount of DC voltage in the mains which makes its way through to the mains transformer, it will become ‘saturated’ and start to hum like a trooper. The DC Blocker is a clever device that you place at the IEC (at the rear power inlet) and as its name implies, it stops DC from getting into the amplifier. It therefore eliminates amplifier transformer hum.

Convert the sound signals from HDMI to analog or optical output with this Insignia HDMI audio extractor. The 3.5mm jack makes connecting headphones or a speaker system as needed simple. This Insignia HDMI audio extractor lets you choose between stereo sound or 5.1 channels with the flip of a switch, providing a variety of audio options for different media.

Only @ Best BuyEasily link audio devices with digital audio outputs to devices with analog audio inputs using this Insignia NS-HZ313 digital-to-analog converter, which is optical or coaxial input selectable to accommodate a wide range of audio devices.

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| Pros for iFi Audio - DC Blocker+ DC Noise Blocker | |||
|---|---|---|---|
| There were no pros for this product— | Ease of use, Compatibility, Price, Audio Quality, HDR Support | Ease of use, Compatibility, Price, Sound Quality, Connectivity | Ease of use, Compatibility, Performance, HDMI, Picture Quality |
| Cons for iFi Audio - DC Blocker+ DC Noise Blocker | |||
| There were no cons for this product— | Resolution | Volume Control | There were no cons for this product— |