Introduction Thank you for purchasing our Essential Audio Tools DC Blocker! ‘Essential Audio Tools’ is a Square Audio brand name. The name speaks for itself, Tools which are very Essential for Audio reproduction. Our products are specifically designed to improve the sound of your audio equipment where it all begins: the mains power supply.
How it works - the solution The Essential Audio Tools DC blocker blocks DC offset and rebalances the AC mains supply sine wave, without limiting the current drawn by the connected equipment. Our DC blocker is also equipped with a high performance, low impedance filter which significantly reduces electrical distortion.
Possible damages due to exceeding maximum ratings will void warranty. Heat The DC Blocker may generate heat. This is normal if the DC Blocker is required to power a large amplifier. Caution should be taken to keep the DC Blocker’s ventilation holes free from obstruction.
Make sure your audio equipment is turned off before connecting it to the DC Blocker. The DC Blocker has a built-in slot for a fuse. This fuse will protect the DC Blocker from malfunctions. The slot is easily accessible from the bottom of the product. Before replacing the fuse ensure that the DC Blocker is disconnected from the mains supply and your audio equipment (see Problem Solving page 7).
Figure 3. Wall socket earth applied Figure 4. Setup for external earth Do not plug or unplug the Ground-Bridge when the DC Blocker is powered! Figure 3 The Ground-Bridge connects the earth contact of the wall socket with the earth connection inside the DC Blocker.
Please check the following before requesting service: 1 – Check if the power cord is plugged deep enough into the DC Blocker’s input. 2 – Check the wall socket by plugging in a light or load to check if the power is present.
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