Per the manual-
"ROOM POSITIONING AND LISTENING WINDOW
As a general rule loudspeakers should be placed about 1 m from the nearest side wall and 50cm from the rear wall, and angling them inwards slightly can be beneficial. The distance between the speakers, and their distance from the listener is also important. Spacing the speakers between 2 (6'-6") and 4 (13') metres apart will allow images to develop fully, and you should sit at a distance at least equal to, and preferably greater than, the distance between them.
Considerable changes can be made to the sound of your hi-fi system by altering the position of the loudspeakers relative to the walls, sometimes by only a few inches. Changing the angle at which they are placed can significantly affect the focus of the stereo image.
The listening room is the most variable and unpredictable element in the hi-fi chain and it cannot be emphasised too strongly that the only way to achieve optimum performance is through many hours of critical, aware listening both on speech and music, whilst adjusting the speakers' position.
Removing the grille will not 'improve' the speakers' performance. The special design ensures best performance with the grille in place.
The Model 104/2 is designed to stand on the floor, it does not require any other form of stand or support. If the speaker is to be used on wood or tiled floor, use the feet as supplied. On thick carpet however, stability will be considerably improved by removing the caps and using the pointed feet, fig 8. Place the speaker in its chosen position and level it by screwing the rear feet fully in and adjusting the front, using the additional washers as necessary to level the speaker. Tighten the screw firmly when levelling up is completed. Only in rare cases of very uneven floors should you need to adjust the rear feet.
The tonal quality and clarity of the reproduction, and above all, the sharpness of the stereo image, are determined by the sound that reaches the listener directly, without reflection from walls, floor or ceiling.
Reflection from nearby walls, windows, mirrors, even the TV set can spoil stereo definition by confusing the primary image. Large items of soft furniture can cause absorption of midrange and high frequencies.
Electrical time delay in the dividing network is designed to tilt the listening axis up 10° from the horizontal. This ensures that the ears of a listener seated 3m (10') from the loudspeaker are on the axis, at a height of 1.2m (4') above floor level. Reference to fig. 9 will show that accurate stereo information is maintained over a wide area both horizontally and vertically. There is no one 'stereo seat' with Model 104/2."
Happy listening!