Plain piece of paper under one of four feet.
Place a plain piece of paper under any ONE of the four feet of a piece of equipment. This applies to any piece of equipment, even if it is not an item of audio equipment. Listen to some music for a short time, then remove the piece of paper and see if you can listen to the same music with the same pleasure - without the plain piece of paper in position !!
Pinning back one corner of a curtain.
Pin back ONE of the four corners of all curtains in the listening room with a safety pin.. Listen to some music for a short time, then remove the safety pins and see if you can listen to the same music with the same pleasure - without the corner of the curtain pinned back !!
Plain piece of Blue paper under any vase of flowers or any pot plant in the listening room.
If you have a vase of flowers or a pot in a plant pot in the listening room, stand the vase or the plant pot on a plain piece of BLUE paper. Listen to some music for a short time, then remove the piece of Blue paper and see if you can listen to the same music with the same pleasure - without the piece of Blue paper in position !!
Tying a Reef knot.
If you have two adjacent power cords or two adjacent interconnects, unplug the power cords from their socket, tie a reef knot in them, replace the plugs back in their sockets and listen for a short time to some music. Then untie the reef knot and see if you can listen with the same pleasure !! If you have no adjacent cables, you can tie a Reef knot in only one cable by forming the cable into a U shape, giving you two parallel sides of wire with which to make a Reef knot. If you find that you have experienced better sound from making only one Reef Knot in one cable, then tie one Reef knot in as many other cables (power or interconnect) as you can. This applies to ANY cable belonging to ANY equipment - not just to audio equipment.
No other knots should be used. Only a Reef knot (I think it might be called a Square knot in the USA). Two links are given below as visual descriptions. Just make sure you do not make a Granny knot by mistake !!