Audiolab DC Block 6 – Direct Current Blocker

Direct Current Blocker

The Audiolab DC Block 6 Direct Current Blocker has been designed to improve the quality of AC electricity that feeds our audio and AV systems.

Mains electricity has a fundamental influence on the audio signal as it passes through a system, from source to amplifiers to speakers. The mains supply in a typical home is subject to interference induced by a range of issues, causing the AC waveform to distort before it reaches each component.

This creates noise in the audio signal, which degrades sound quality – a situation that continues to worsen with more and more electrical devices being added to the home mains supply.

The Audiolab DC Block 6 Direct Current Blocker has one single mains input and offers six IEC outlets for the mains power supply of your audio system components.

Perfectly sized to match Audiolab components and to easily fit into a typical hi-fi shelf/rack system, the Audiolab DC Block 6 Direct Current Blocker also features a front-panel voltmeter display (which can also be powered off for a more discreet placement).

DC mains supply

One common issue is ‘DC on the mains’ – a problem that is well known to affect the performance of audio equipment, especially amplifiers. In theory, the main electricity we obtain from the sockets in our homes should be pure AC, with a perfectly symmetrical sine wave alternating between positive and negative phases.

DC Voltage

The AC transformers commonly used in home audio equipment cannot tolerate the presence of significant levels of DC voltage without being compromised.

Less than 500mV of DC – typical in an average household electricity supply – can be sufficient to cause toroidal transformers of the kind often found in amplifiers to become saturated, which adversely affects sonic performance and may cause audible mechanical vibration.

The Audiolab DC Block 6 Direct Current Blocker is a six-way solution for this all-too-common problem