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The amplifier is the heart of your system.
If you have a mechanical hum, deploy the DC Blocker
Got big amplifier. Bye bye mechanical hum.
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.
Cute. Clever.
All the benefits of cutting out annoying hum with no drawbacks.
- Intelligently stops any DC voltage from the mains to eliminate transformer hum
- EMI shielding is retained
- Equipment safety is unaffected
Behind every good component is a DC Blocker.
The bigger the amplifier, usually, the larger the toroidal which is susceptible to residual DC voltage. JUst add the DC Blocker at the IEC to stop DC from getting in.
- 90-240V
- Maximum rating >10A, continuous current rating 7A
- Small size, universal application, won't block any other connectors, sockets, or cables
ZERO DC Block technology - stops DC from getting into your amplifier and eliminates amplifier transformer hum.
High-performance glass passivated semiconductor. High-case dielectric strength of 1500VRMS. UL listed. Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0).
EMI shielding is retained.
The DC Blocker removes such DC and eliminates such mechanical transformer hum, makes the transformer operate at the optimum environment. With the DC Blocker, there is 0 DC pass through.
Specifications:
- ZERO DC Block technology: Blocks incoming DC - up to 1,200mV
- Voltage rating: 90 - 240 volts
- Maximum current rating: > 10A
- Continuous current rating: 7A
- Universal IEC: Hospital-grade IEC connectors
- Dimensions: 68 x 37 x 32 mm / 2.7" x 1.5" x 1.3"
- Weight: 63g / 2.2oz
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Product Details
- iFi Audio DC Blocker
-
Brand New : Factory Sealed
- EAN : 5060738784196
- EFLC : 11933
- Write a review
Warranty
One Year Warranty
- Parts and Labour Warranty
- Canada-wide Coverage
- iFi Audio Authorized
Returns
Easy Returns
- 14-day return window on eligible items
- Full refund issued in accordance with our return policy
About iFi Audio
iFi Audio focuses on personal audio built for everyday listening, with a lineup that can include headphones, earbuds, portable DACs, and digital audio gear designed for clean sound and easy use. Whether you're listening at home, at work, or on the go, these products are made for practical comfort, reliable connectivity, and solid performance. We've been carrying iFi Audio since 2018.
Explore our current iFi Audio selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Portable DACs & Headphone Amps, Adaptors & Connectors, Power Conditioners.
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