Speaker Toe-In; Spikes & Speaker Rake Angle; Loudspeaker Clearance And The Bass Port; Kinematic Location Cups Or Spikes - Wilson Benesch FIBONACCI Series User Manual

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The amount of speaker toe-in will define a sharper centre image at the expense of image width. The upper frequencies will become more pronounced as you bring

the tweeters on axis with your ear at the listening position. While we generally recommend at least some speaker toe-in, the amount is not a precise or fixed value.

Experimenting here is advisable and evaluation at the listening position while an assistant makes toe-in adjustments is one method to achieve the best balance.

The position of the tweeter has been designed to function best for listeners seated in conventional relaxed seating positions. However, the rake angle of the speaker can

be changed by adjusting the installed speaker spikes. Tilting the speaker back slightly will have the effect of projecting the perceived sound stage a little higher. This can

also change the perceived balance of the upper frequencies, as the tweeter will be most prominent when it is on axis with your ear at the listening position.

For those loudspeakers that feature a bass port on the underside of the foot, the low frequency can be augmented in much the same way that it would should you place

the loudspeakers next to a wall. That is to say, adjustments in the overall clearance of the loudspeaker port from the floor will change the overall balance in the system.

Generally it can be observed that a smaller clearance and closer placement to the floor will result in a more augmented low frequency characteristic to the loudspeaker

presentation, where a larger clearance between the floor and the bass port will result in a less augmented low frequency characteristic to the presentation. This is a critical

step in the loudspeaker setup procedure and in many cases the balance of the system will change considerably as this parameter is adjusted.

In listening rooms with a carpet Wilson Benesch recommend using spiked termination, where the objective is to drive through the carpet and into the sub-floor to achieve

maximum stability for the speaker. For hard floors or low-pile carpets use of Kinematic Location Cups is recommended.