Examples of different tweeter mounting locations, and the results that are most fre-
quently obtained, are explained below:
01. A-Pillar:
Best option concerning the depth of image and overall sound balance of the
component system. Not that easy to get right, i.e. excessive mounting effort.
02. Dash Board:
Sometimes aggressive and overly brilliant treble reproduction caused by the
horn loading effects of the front window. Setting tweeter to -3 dB may help.
03. Window Triangles:
Bright sound combined with a high soundstage, sometimes sounding a bit
"nervous" with side biasing.
04. On the upper end of the door panel:
Balanced sound with good staging qualities, reduced sound staging and
with side biasing.
05. Right on top of the mid/woofer:
"Dull" sound, especially with a person sitting on the passenger's seat.
Attention: The main radiation axis of both tweeters should cross at a virtual point ap-
prox. in the center between front of passenger and driver's seat. A direct "on-axis" in-
stallation of the tweeters, where they aim or point at the listener, is not recommended.
The result of tweeters aiming too much in direction of the listener is called "side-biasing".
The sound seems to originate from the left front door instead of playing in the center of
the dash board!
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