Skip to content

iFi Audio DC Blocker+ | Transformer Hum Eliminator

SKU 111294
Original price £149.00 - Original price £149.00
Original price
£149.00 - £149.00
Current price £149.00

  • Free & Next-Day Delivery Available

    Free & Next-Day Delivery Available

  • Hassle-Free Returns Within 30 Days

    Hassle-Free Returns Within 30 Days

  • 1 Year Warranty

    1 Year Warranty for Peaceful Ownership

Enhancing AC Electricity Quality The iFi Audio DC Blocker+ is your solution to improving the quality of AC electricity for your audio and AV systems. Mains electricity, which plays a crucial role in powering your audio systems, often faces disruptions caused by various interferences. These disruptions can distort the AC waveform, ultimately leading to a reduction in audio quality. One common issue in the world of amplifiers is the presence of "DC on the mains," and it's a problem that the DC Blocker+ effectively tackles.

The Trouble with Transformer Hum Most audio components feature a circular, toroidal transformer at their core. While these transformers are excellent for their intended purpose, they do have a significant drawback. The presence of incoming mains DC voltage, which can vary from 1,000mV to several hundred millivolts, can lead to an annoying "mechanical hum." Just when you're engrossed in the quietest of tracks, your ears pick up this unwanted low-level hum emanating from inside your audio component.

Sayonara Mechanical Hum The DC Blocker+ comes to the rescue. By placing it at the IEC inlet of your audio component, you effectively prevent DC voltage from entering and causing that troublesome hum. You can install a DC Blocker+ at the incoming mains of each audio component in your setup, ensuring a serene and hum-free listening experience.

  • Enjoy Music Without Hum: The DC Blocker+ intelligently blocks over 1,000mV of DC voltage, eliminating transformer hum and allowing you to enjoy your music without the annoyance of unwanted noise.
  • EMI Shielding and Safety: The DC Blocker+ retains EMI shielding, and its use does not compromise the safety of your equipment. It's a practical solution for dealing with mechanical hum.
  • Suitable for Higher Power Equipment: Larger amplifiers often feature larger toroidal transformers that can be sensitive to residual DC voltage. The DC Blocker+ can be added at the IEC to prevent DC interference, making it suitable for high-power equipment.
  • Global Compatibility: Designed to work with high-power equipment (Continuous current rating: 10A), the DC Blocker+ is globally compatible with voltage ranges from 90V to 250V. Its compact design ensures it won't obstruct other connectors, sockets, or cables.
  • Smart Device: The DC Blocker+ is a smart and effective device that, when placed at the IEC (rear power inlet), acts as a barrier, preventing DC voltage from entering your amplifier and eliminating transformer hum.

ZERO DC Block TechnologyBlocks incoming DC - up to 1,200mV
Voltage Rating90 – 250 volts
Maximum Current Rating≤14A
Max Amplifier Power (220V)2200W or VA
Max Amplifier Power (110V)1100W or VA
Continuous Current Rating10A
Universal IECHospital-grade IEC connectors
Dimensions75 x 46 x 32 mm / 3.0” x 1.8” x 1.3”
Weight80 g (2.8 oz)

Delivery is made by common carrier next working day. Delivery is FREE for orders in-stock and over £100 or £9.99 for orders less than £100 or special delivery items.

Statutory Cancellation Right

You have the statutory right to cancel your order for any reason within 14 days beginning with the day you receive the item (please see clause 2 of our Conditions of Sale for the full instructions on cancellation and further information on your right of cancellation). We only accept cancellations via phone - 0115 975 8613, email - or post - Superfi Returns, DB House, Rani Drive, Nottingham, NG5 1RF, United Kingdom.

Our Voluntary Returns Policy

As well as your statutory cancellation rights described above, you can return most products within 30 days of receipt of the products if the products are complete and are in an unused and undamaged condition. We only accept returns via phone - 0115 975 8613 or post - Superfi Returns, DB House, Rani Drive, Nottingham, NG5 1RF, United Kingdom.

Please note that this returns policy doesn't affect your statutory rights and therefore doesn't affect your right of cancellation as described above.

Please note that you must return each item in the same condition in which you received it. This means that new items must be returned new, unused and complete (including all accessories). Refunds for returned items that are not received in this condition, may be reduced.

Need Help?

Call us on 0115 975 8613

Contact Us

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare