Rockford Fosgate PCH-14X User Manual

Page 8

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• Place the speakers where they have

a direct path to the listening area.

• When using the Punch Splits, there

are two options for speaker place-
ment between the midrange and
tweeter. For the best integration be-
tween the midrange and tweeter,
the tweeter should be placed less
than 2" from the midrange. (Figure 1)

• If you cannot place the tweeter less

than 2" from the midrange, then place the tweeter more than 7"
from the midrange. Placing the tweeter 2"-7" from the midrange
can cause destructive interference (frequency response prob-
lems) which will affect the speaker’s ability to reproduce the
frequency range around the crossover frequency of the Punch
Splits system.

• Whenever possible, place the tweeter directly above or below

the midrange as this maximizes the imaging (point source)
capability of the Punch Splits speakers. (Figure 2)

Sound radiated from a “point source” has the most optimum stereo imaging
because the separation of the acoustical centers between the midrange
and tweeter for each channel is at the optimum. Figure 2-A describes
a horizontal speaker alignment. In a closed environment such as an
automobile, horizontal speaker alignment can cause severe ampli-
tude and phase differences which will degrade not only the imaging,
but also the frequency response. This is due to the path length
differences between the midrange and tweeter. Figure 2-B displays
a vertical alignment between the midrange and tweeter. With a
vertical alignment, the path length differences between the midrange
and tweeter are reduced to a minimum. The result is a negligible
difference in path lengths between the midrange and tweeter regard-
less of the proximity of the listener to the speakers. Mounting the

Figure 2-A

Figure 2-B

Figure 1

2" or less

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