1 wiring and field interactions – Avalon Acoustics Sentinel User Manual

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4.1 Wiring and Field Interactions

The Sentinel Active Reference System is an extremely revealing, high-energy

device. Therefore, it is important to carefully plan the placement and routing

of wires when setting up your music reproduction system. Wiring is a task that

is often performed in a quick and haphazard manner, driven by the

excitement and anticipation of listening to one's brand new system. Although

it is compelling to rush into this process, don't rush!

Inductive field effects

The wiring in your music reproduction system is a very sensitive network of

electromagnetic conductors. Any changing magnetic fields that are in close

proximity to those conductors will induce small contaminating signals, thereby

degrading the music fidelity. In addition, the magnetic fields generated by

signals passing through one conductor will induce similar contaminating

signals in any adjacent conductors. These cross-inductive effects in a poorly

laid-out conductor network substantially increase the system noise floor,

resulting in a lack of image focus and resolution. In severe cases, oscillative

phenomena may also have disastrous effects on wide bandwidth amplifiers.

The following guidelines will minimize inductive field effects in your system:

Physically separate the conductors whenever possible, as cross-

inductive effects decrease with the square of the distance between

elements. This applies to speaker cable, interconnects, digital cables,

and any AC cables in your system.

When crossing of wires is unavoidable, cross them at right angles to

one another, and place non-conductive spacers between them.

Avoid placing magnetic field devices near the conductors. Devices

such as halogen lights, fluorescent lights, dimmer switches, terminator

boxes, or computer equipment should not be placed in the vicinity of

the wiring or crossovers.

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