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iFi DC Blocker - Blocks Any DC Offset, IEC Connector
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Product Description

Line Circle
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.

Features & Specs Line Circle

CUTE & CLEVER
Intelligently stops any DC voltage from the mains to eliminate transformer hum
HIGH PERFORMANCE
High-performance glass passivated semiconductor. High-case dielectric strength of 1500VRMS. UL listed. Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0).
TECHNOLOGY
Blocks incoming DC – up to 1,200mV
VOLTAGE RATING
90 – 240 volts
MAXIMUM CURRENT RATING
> 7A
UNIVERSAL IEC
Hospital-grade IEC connectors
CUTE & CLEVER
Intelligently stops any DC voltage from the mains to eliminate transformer hum
HIGH PERFORMANCE
High-performance glass passivated semiconductor. High-case dielectric strength of 1500VRMS. UL listed. Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0).
TECHNOLOGY
Blocks incoming DC – up to 1,200mV
VOLTAGE RATING
90 – 240 volts
MAXIMUM CURRENT RATING
> 7A
UNIVERSAL IEC
Hospital-grade IEC connectors

Expert Insight

Line Circle

This is an excellent low-cost solution for removing mains DC offsets and certainly offers real sonic improvments for systems

Expert Img
Hi-Fi Choice
Hi Fi Reviews

Details

Line Circle

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 >7A, continuous current rating 4A
  • 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.

ZERO DC Block technology Blocks incoming DC – up to 1,200mV
Voltage rating 90 – 240 volts
Maximum current rating > 7A
Max amplifier power 880W or VA on 220v
440W or VA on 110v
Continuous current rating 4A
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

FAQ's 

Tech Lowdown

Connection Guide

Reviews

Line Circle
Product Descriptiondown arrow

Product Description

Line Circle
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.
Features & Specsdown arrow

Features & Specs Line Circle

CUTE & CLEVER
Intelligently stops any DC voltage from the mains to eliminate transformer hum
HIGH PERFORMANCE
High-performance glass passivated semiconductor. High-case dielectric strength of 1500VRMS. UL listed. Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0).
TECHNOLOGY
Blocks incoming DC – up to 1,200mV
VOLTAGE RATING
90 – 240 volts
MAXIMUM CURRENT RATING
> 7A
UNIVERSAL IEC
Hospital-grade IEC connectors
CUTE & CLEVER
Intelligently stops any DC voltage from the mains to eliminate transformer hum
HIGH PERFORMANCE
High-performance glass passivated semiconductor. High-case dielectric strength of 1500VRMS. UL listed. Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0).
TECHNOLOGY
Blocks incoming DC – up to 1,200mV
VOLTAGE RATING
90 – 240 volts
MAXIMUM CURRENT RATING
> 7A
UNIVERSAL IEC
Hospital-grade IEC connectors
Expert Insightdown arrow

Expert Insight

Line Circle

This is an excellent low-cost solution for removing mains DC offsets and certainly offers real sonic improvments for systems

Expert Img
Hi-Fi Choice
Hi Fi Reviews
Detailsdown arrow

Details

Line Circle

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 >7A, continuous current rating 4A
  • 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.

ZERO DC Block technology Blocks incoming DC – up to 1,200mV
Voltage rating 90 – 240 volts
Maximum current rating > 7A
Max amplifier power 880W or VA on 220v
440W or VA on 110v
Continuous current rating 4A
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

FAQ's 

Tech Lowdown

Connection Guide

Reviewsdown arrow

Reviews

Line Circle
View More