Operating instructions

22
Type-3A: Despite the fact that both drivers
are mounted in the same plane and in close
proximity, their orientation results in the
acoustic center of the tweeter being farther
away. Both drivers are considered to be 45°
off-axis at an average distance of approxi-
mately 1 meter. In this case, a medium Q 3
rd
Order high-pass filter is employed in con-
junction with an inverted connection to the
tweeter. Proper integration between the two
is then achieved with a low Q quasi-2
nd
Or-
der low-pass on the woofer, resulting in an
acoustic crossover point of 2.2kHz.
System Type 3
10
0
–10
–20
–30
–40
–50
2.0Hz 3.0Hz 100Hz 300Hz 1.0kHz 3.0kHz 10kHz 30kHz
HP-1
IN
OUT
IN
OUT
HP-2 HP-3 HP-4 HP-5
BYPASS
TW HP
LP-1
BYPASS
+
—
SIGNAL
LINK
SPX—Z15M
TW LEVEL
TW PHASE
+6dB/45° +4dB/30° +2dB/15°
0dB/0°
–2dB
–4dB
LP-2
WF LP
Network Jumper Setting
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.