Audiolab DC Blocker Overview
Reduce the noise over AC power with the black Audiolab DC Block Single-Outlet Inline Power Conditioner. It is designed to reduce the noise carried over your AC power and, when used with an amplifier, is rated for amps that output up to 300W total.
DC Over AC
One common issue with AC power is “DC over AC,” a problem well known to affect the performance of audio equipment, especially amplifiers. In theory, the AC 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” â�� myriad household devices that use the AC energy available in the power cycle unevenly, from dimmer switches to kitchen appliances to computer power supplies â�� causes the waveform to become offset, resulting in the presence of DC voltage on the AC supply.
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 â�� typical in an average household electricity supply â�� 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. By blocking, or cancelling, DC voltage found within the AC mains supply, the DC Block corrects the DC offset and rebalances the AC sine wave.
Combining DC Blocking and Filtering
In the Box
- Audiolab DC Block Single-Outlet Inline Power Conditioner (Black)
- AC to IEC Power Cord
- IEC C14 to C13 Jumper Cord
- DC Over AC
- High-Performance Filtering
- Combining DC Blocking and Filtering
- Simple Setup