Bose Wave Audio System Positioning

Bose wave audio system positioning has a significant effect upon the performance. In smaller spaces such as control rooms and living rooms the speakers are likely to be positioned close to the walls, and ‘ room gain ’ comes into effect whereby the low frequencies are reinforced. This happens because at these frequencies the speaker is virtually omni directional, i.e. it radiates sound equally in all directions. The rear- and side-radiated sound is therefore reflected off the walls and back into the room to add more bass power. As we move higher in frequency, a point is reached whereby the wavelength of lower mid frequencies starts to become comparable with the distance between the speaker and a nearby wall. At half wavelengths the reflected sound is out of phase with the original sound from the speaker and some cancellation of sound is caused.

Additionally, high-frequency ‘ splash ’ is often caused by nearby hard surfaces, this often being the case in control rooms where large consoles, tape machines, outboard processing gear, etc. can be in close proximity to the speakers. Phantom stereo images can thus be generated which distort the perspective of the legitimate sound. A Bose wave audio system which has an encouragingly fl at frequency response can therefore often sound far from neutral in a real listening environment. It is therefore essential to give consideration to bose wave audio system placement, and a position such that the speakers are at head height when viewed from the listening position (high-frequency dispersion is much narrower than at lower frequencies, and therefore a speaker should be listened to on axis) and also away from room boundaries will give the most tonally accurate sound.

Some speakers, however, are designed to give their best when mounted directly against a wall, the gain in bass response from such a position being allowed for in the design. A number of professional studio monitors are designed to be let into a wall such that their drivers are then level with the wall’s surface. The manufacturers ’ instructions should be heeded, in conjunction with experimentation and listening tests. Speech is a good test signal.

Male speech is good for revealing boominess in a speaker, and female speech reveals treble splash from hard-surfaced objects nearby. Electronic music is probably the least helpful since it has no real-life reference by which to assess the reproduced sound. It is worth emphasizing that the speaker is the means by which the results of previous endeavor are judged, and that time spent in both choosing and setting is time well spent.

Speakers are of course used in audio-visual work, and one frequently finds that it is desirable to place a speaker next to a video monitor screen. But the magnetic field from the magnets can affect the picture quality by pulling the internal electron beams off course. Some speakers are specially magnetically screened so as to avoid this.

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