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Deleted member 48726
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Yeah, but "back in the day" we didn't know much about EMC either, and all electronic devices shall today be compatible with the EMC Directive which prohibits devices to electromagnetic disturbances of the surroundings. At least in the EU. Don't know how it is across the pond.Just the simple act of putting a DAC on the left or right side of a power amplifier can make a difference as can the order (if you stack) components. Induced noise and hum can skyrocket. Back in the analogue days, with cassette/open reel recording, much time was spent carefully arranging the gear to reduce or eliminate hum/buzz (radiated). Just moving a preamplifier to one side or the other could make all the difference.
The basic rules haven't changed:
Keep low level gear away from high current gear and experiment with orientation. Consider where the low level high gain parts of circuitry are in a box and keep them physically away from power supplies, transformers etc. All the balanced connections in the world won't help you one iota, if the issues originate inside the unit itself.
Use decent quality, full shield cables, wired correctly (no weird audiophile wiring) with quality plugs.
Keep runs short, but no so short they are unusable or plain annoying.
Don't worry about speaker and signal cables lying alongside each other- that's just going too far. As for 90 degree cables- that's just silly stuff. Look at a studio's wiring, or a professional install in a concert hall, everything runs parallel- balanced of not.
Don't spend a fortune. Mogami, Canare and Amphenol, Switchcraft, Neutrik.