Audiolab - DC Block Power Distributor

Correct Transformer Saturation Caused by DC on Your Mains Supply: Single-Outlet Audiolab DC Block Power Distributor Reduces Grain, Enhances Clarity, Lowers Noise Floor, and Opens Midrange 

Refine the quality of the noisy AC electricity coming into your system with the Audiolab DC Block power distributor. By blocking the unwanted DC voltage within the AC mains supply, this dual-action component corrects the DC offset and rebalances the mains sine wave. It also gives you the advantage of a high-performance filtering circuit that removes RFI/EMI contaminants from the mains, which reduces both differential-mode noise (exacerbated by cheap switch-mode power supplies used in home appliances) and common-mode noise (aggravated by airborne interference from phones, Wi-Fi networks, and Bluetooth).

Weighing just 1.5 pounds, DC Block handles peak loads up to 600VA and is a cinch to use. Simply connect the supplied jumper cord from the output to the desired unit you wish to improve, such as an amplifier or CD player. Then, connect the supplied power cord from the DC Block input to your AC outlet. Finally, put on some music, sit back, and enjoy the improvements in clarity, dynamics, detail, and more.

DC Mains Supply
One common issue is "DC on the mains," a problem known to affect the performance of audio equipment, especially amplifiers. In theory, the mains 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. However, the presence of asymmetrical loads causes the waveform to become offset, resulting in the presence of DC voltage on the AC supply.

DC Voltage, and Its Challenge
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, adversely affecting sonic performance and possibly causing audible mechanical vibration. By blocking DC voltage found within the AC mains supply, DC Block corrects the DC offset and rebalances the mains sine wave. It also contains a high-performance audio class filtering circuit that removes RFI/EMI contaminants from the mains supply.