[Haydn]

Originally Posted by CGabriel

Outlets in a home are commonly daisy-chained with multiple outlets connected together in series. Each additional connection point defrades DTCD (instantaneous current) and each outlet or splice box creates another potential loose or poor connection. This will degrade current capacity and can also introduce noise if the contact is dirty or corroded.

1st Step: Identify all outlets and switches that are connected to the circuit. For our purposes a single circuit can be defined as a single breaker in the electrical panel and all the outlets, switches and dimmers that are connected to the in-wall wire that proceeds from the panel. You can do this by finding the electrical breaker that powers your audio system. Then turn the breaker off and use an outlet tester or a small AC lamp will do to identify all the other outlets or light switches that no longer function.

2nd Step: If possible, unplug any devices (not audio system) that are plugged into these outlets. Find a different cicuit to power them.

3rd Step: For all outlets that are not being used, you can stub them off. This means to disconnect the wiring to the outlet. Of course the incoming and outgoing wires must being cleaned and connected with twist-on caps so that power is passed to the next outlet in the chain. If I have to explain this further, you shouldn't do it - hire an electrician. Then, put a "blank" cover over the outlet box. The outlet can be reinstalled at a later date if you move your system or if you sell your home.

4th Step: If a non audio outlet cannot be stubbed off then replace it with a quality unit. By this I don't mean a platinum plated, diamond encrusted outlet. A good commercial grade outlet will do. In the USA, I prefer to use the Hubbell brand due to the type of brass alloy that they use internally. The reason you want to replace it is the fact that the incoming wire and outgoing wires are sometimes connected through the outlet.

DEDICATED LINES: All the the above explains why one of the most important upgrades to the audio power system is a dedicated line. For those that don't know: A dedicated line is defined by a single breaker and a run of wire directly to a single outlet. There are no other outlets or switches connected. Further, all three wires (hot, neutral and ground) are dedicated to that single outlet. So the procedure above gets you a virtual dedicated line if done with care. Eliminate non-audio devices on the circuit and improve the splices and connection points.

Moderation and prudence when installing dedicated lines. " If one is good, two are better and one for every component is the bomb!" Right? --- Yeah not so fast mate. One is definitely a huge advantage. Two can be better - one for all source equipment and another for the amps. But installing multiple dedicate lines will often introduce a very vexing problem - ground loops and hum and buzzing.

cg

Thank you for the excellent explanation and steps.