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iFi Audio DC Blocker+ - Transformer Hum Eliminator
€149.00
SKU
P003280
12 Months
New
24 hours
Request Price MatchThe iFi Audio DC Blocker+ is an essential device for ensuring the best possible audio quality. By preventing the disruption of AC power from various interferences, it allows your audio system to perform at its best. The DC Blocker+ also eliminates transformer hum, which can be a common issue with amplifiers. 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.
iFi Audio DC Blocker+ - Transformer Hum Eliminator
The iFi Audio DC Blocker+ is an essential device for ensuring the best possible audio quality. By preventing the disruption of AC power from various interferences, it allows your audio system to perform at its best. The DC Blocker+ also eliminates transformer hum, which can be a common issue with amplifiers. 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.
With this device, you can rest assured that your audio system is running optimally and that you're getting the most out of your equipment.
Moreover, the iFi Audio DC Blocker+ is very easy to install and use, so you can enjoy better sound quality with minimal effort.
Features
- Intelligently blocks over 1,000mV DC to eliminate transformer hum
- EMI shielding is retained
- Equipment safety is unaffected
How do I know if I need one?
If you hear audible hum inside a powered audio product, especially with a toroidal transformer inside, iFi's DC Blocker+ was designed to either lower or remove that noise.
How do I use it?
Insert a DC Blocker+ into the mains input of your equipment at the IEC power inlet. Plug the power cord into the DC Blocker. You can use a DC Blocker on each piece of equipment that has a power transformer in its power supply.
My device has a switchmode power supply, will this unit work for me?
Although the DC Blocker+ unit will still provide switchmode power supplies with power, there is little benefit in doing so. In a switchmode power supply the AC mains is first rectified into DC, after which a high frequency switching regulator circuit takes care of any AC or DC fluctuations on the mains.
What are the reasons for distortion (hum)?
The majority of audio electronic equipment uses a power transformer or transformers for their power supply. Mains power starts out being a pure sine wave at the power station but ends up having a lot of distortion imposed upon it by the time it reaches your equipment at home. The distortion comes from other equipment connected to the same power line and could be industrial or domestic in nature, such as pulse-width modulated electric motors (eg. vacuum cleaners, heat pumps), household heating, washing machines, phase-controlled industrial equipment in factories, light dimmers, etc.
What sort of equipment should I connect to it?
The DC Blocker is mainly designed for source equipment and amplifiers with a power transformer rating up to 500W (for 230V) or 350W (for 115V). Using equipment with a higher power rating is ok though, as any more power demanded through the DC Blocker is transferred straight to the equipment. DC blocking will still work, but to a lesser degree.
Will it negatively affect an audio product in any way?
iFi's DC Blocker was designed not to. If anything, it will improve a connected component’s sound quality due to removal of excess DC voltage.
Specifications:
- 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
- ZERO DC Block technology – stops DC from getting into your amplifier and eliminates amplifier transformer hum
- Dimensions: 75 x 46 x 32 mm / 3.0” x 1.5” x 1.3”
- Weight: 80g / 2.8oz
- Warranty period: 12 months
About iFi Audio 
iFi Audio is an award-winning audio tech company dedicated to enhancing your music enjoyment. With a mission to improve sound quality and eliminate noise, distortion, and hiss, iFi Audio offers a wide range of products that cater to headphones, speakers, portable audio devices, phones, and TVs. By doing so, they aim to deliver studio-quality audio that allows you to experience music as the artists intended.
Since its establishment in 2012, iFi Audio has been driven by the love of music and a commitment to making a difference in people's lives. With over 50 meticulously designed and manufactured products, they ensure every detail meets their high standards. Sourcing parts from around the world, including Germany, the USA, and Japan, they bring together global expertise to create exceptional audio devices.
At the heart of iFi Audio's business are its customers. They prioritise delivering the highest quality audio wherever you are, whether in the comfort of your home or on the go. Their distribution centre in the USA serves renowned retailers such as B&H and etailz, expanding their global network and reaching more music enthusiasts.
iFi Audio takes pride in its eco-friendly practices, using recyclable materials like aluminium, paper, and recycled plastics for its products and packaging. They strictly adhere to environmental standards, ensuring their components are hazardous toxins-free.
With a focus on Class A analogue circuitry and maintaining the audio signal's integrity, iFi Audio's products offer exceptional performance without compromising environmental sustainability. They believe that how a product looks, performs, and impacts the environment all matter, and they strive to deliver audio solutions that meet these criteria.
Experience the difference of high-quality audio with iFi Audio and immerse yourself in the joy of music.
Specifications:
- 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
- ZERO DC Block technology – stops DC from getting into your amplifier and eliminates amplifier transformer hum
- Dimensions: 75 x 46 x 32 mm / 3.0” x 1.5” x 1.3”
- Weight: 80g / 2.8oz
- Warranty period: 12 months
UK Delivery
1. We use Royal Mail 1st Class Services as a Standard Postage Option
Orders received before 4.30pm Monday to Friday (excluding Bank Holidays) are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. Over 98% of our orders are usually delivered the next working day including Saturdays.
Standard delivery is usually within 2-3 working days, although 98% of all orders are delivered the next working day including Saturdays . In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.
All items are fully insured and come with an invoice from Futureshop.co.uk. We use the Royal Mail for delivery of small packages and DPD or Interlink Express for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order Monday to Friday subject to stock availability. For International orders, we use FedEx Services where customers have selected this option.
Please note, special orders for non-standard cable lengths or custom-made cables may be subject to longer delivery time-scales. This may vary from manufacturer to manufacturer.
We offer 'Free UK delivery on orders over £99' subject to the following terms & conditions:
- Applies only to orders with £99 or more of items (including VAT at the UK rate), at FutureShop.co.uk
- Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by UK Mail).
- Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
- You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
- We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
- FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.
Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or Interlink Express next working day services which deliver from 9.00am to 6pm within mainland UK.
Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or Interlink Express.
2. Special Delivery UK - Guaranteed Next Working Day
We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.
For the Next Day Special Delivery service, orders must be received by futureshop.co.uk by 4.30pm weekdays. Orders after the 4.30pm deadline cannot be guaranteed for same day dispatch.
Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.
For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.
3. Channel Islands & Northern Ireland
We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.
European Countries
Deliveries to EU member states are subject to 20% VAT. We offer the following shipping services:
- Royal Mail First Class International Untracked Airmail Services - Items are usually delivered within 10 working days.
- Royal Mail First Class International Tracked Airmail Services - Items are usually delivered within 3 to 7 working days.
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
- Federal Express International Economy - Item are usually delivered within 48 to 72 hours
Worldwide - Excluding UK & Europe
Deliveries outside of the EU are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you login or register.
We offer the following shipping services:
- Royal Mail First Class International Untracked Airmail Services - Items are usually delivered within 15 working days.
- Royal Mail First Class International Tracked Airmail - Items are usually delivered within 10-15 working days.
- DHL Express International - Items are usually delivered within 48 hours. DHL orders must be received by 3:30pm in order to ship items the same day, subject to stock availability.
- Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability.
Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets.
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