Alpine F#1 Status SPX-Z15M User Manual page 25

Network Jumper Setting
Type-3B: In positions where the component
set is farther away on a flat surface, the lis-
tening angle becomes quite extreme. In this
case, the mounting position is considered
to present an approximate angle of 60-70°
off-axis angle, at a distance of 1.2 meters to
both drivers relative to the listener. Phase
linkage is accomplished with a relatively high
rd
Q 3 Order high-pass filter on the tweeter,
resulting in a 12dB/oct. roll-off at the start-
ing point that steepens to 18dB/oct. below
2kHz. The woofer low pass is a semi-1
Order with a very gradual slope of 3-4dB/
oct. As a result, the acoustic crossover point
between the two drivers is 2.3kHz.
Notes:
• Highlighted tweeter level jumpers are the recommended settings for each configura-
tion, but some user adjustment may be desirable.
• Transfer function simulations only illustrate the effect of the filter upon the input sig-
nal, and therefore do not represent the actual frequency response of the system.
• If separate channels of amplification are used (bi-wire mode), the appropriate signal
link jumpers must be removed.
10
0
–10
–20
–30
–40
–50
2.0Hz 3.0Hz
st
TW HP
WF LP
SPX—Z15M
SIGNAL
LINK
+
—
100Hz 300Hz 1.0kHz 3.0kHz
TW PHASE
TW LEVEL
10kHz 30kHz
23