Announcing the New DC Blocker +
Aug 31, 2023 at 1:03 PM Thread Starter Post #1 of 6

iFi audio

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Enhance the quality of AC electricity for your audio and AV systems.​

If you have a mechanical hum, deploy the DC Blocker+

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Sayonara mechanical hum.​

Mains electricity, crucial to your audio systems, can often be disrupted by various interferences, distorting the AC waveform, and reducing audio quality. ‘DC on the mains’ is a common problem, particularly with amplifiers.
Although household outlets are intended to deliver pure AC power, a range of your home appliances—from lighting controls to home appliances power supplies—create ‘asymmetrical loads’, resulting in DC voltage on the AC supply.
When a small amount of DC voltage from the mains reaches the transformer, it can cause ‘saturation’, leading the transformer to produce a significant and persistent humming sound. You can hear it when you bring your ear close to or next to the chassis.
The DC Blocker+ is a smart device that, when you place it at the IEC (the rear power inlet), prevents DC from getting into the amplifier, thus eliminating transformer hum.

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Plus for Higher Power Equipment.​

The bigger the amplifier, usually, the larger the toroidal transformer — often sensitive to residual DC voltage. Simply add the DC Blocker+ at the IEC to stop DC from getting in.
  • Globally compatible (90-250V).
  • Designed for high-power equipment (Continuous current rating: 10A).
  • Compact design ensures it doesn’t obstruct other connectors, sockets, or cables.
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ZERO DC Block technology – stops DC from getting into your amplifier and eliminates amplifier transformer hum.

Designed for high-power equipment (continuous current rating: 10A).

EMI shielding is retained.

High-performance glass passivated semiconductor. High-case dielectric strength of 1500VRMS. UL listed. Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0).

Here's a comparison of the DC Blocker!
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Get Yours!

Cheers!!
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://www.facebook.com/people/IFi-audio/61558986775162/ https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Aug 31, 2023 at 1:44 PM Post #2 of 6
Seems useful. :)
 
Aug 31, 2023 at 2:16 PM Post #3 of 6
Seems useful. :)
Thanks, For some folks this is an issue, this little device is aimed at solving it, and should provide some needed relief and improvement!

I may try one as I have some amps around that this is a small issue, I will report back how it does.

Cheers!!
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://www.facebook.com/people/IFi-audio/61558986775162/ https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Sep 1, 2023 at 8:35 AM Post #5 of 6
I am looking to suppress the small background noise (when music is not playing) from my pc when using a Qudelix in usb mode, could this be helpful?
It is quite possible that this may help you.

My advice would be to purchase through somewhere that will offer you a good return window just in case this is not the root cause of the noise you are hearing, that way you can try it and return it if need be without harm.

if possible you can buy directly from our website, This has a 30-day no-fault return policy to protect you.

Let us know how you make out!

Cheers!!
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://www.facebook.com/people/IFi-audio/61558986775162/ https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Sep 12, 2023 at 4:44 PM Post #6 of 6
Tbh, as this doesnt seem to use any OFC wiring or conectors/plugs it'll prob change the sound signature slightly and unlike ifi's usb purfiers which dont use OFC interally either those atleast prob 'enhance' the sound abit more.
 

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