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The job of the dividing network is to distribute the various frequencies to
their respective transducers. The network is also designed to complement
component location on the baffle. Slopes are chosen to match the exact
response of each driver in its respective frequency range, as well as to
ensure that the high-frequency transducers are adequately protected from
dangerous low-frequency components.
For the
4344MkII system, we chose our Charge-Coupled Linear
Definition
™
Dividing Network. The inductors are all designed for high-
current, low-distortion operation. All capacitors in the network are
series/parallel connected and operated with D.C. bias. This effectively
enables the capacitors to operate in “Class A” mode, which substantially
increases sonic detail, resolution, and dynamics. The low-frequency section
of the dividing network is mounted on a dedicated circuit board that
separates both electrical and magnetic properties from that of the
midrange and tweeter sections.
Additionally, the
4344MkII’s dividing network allows for passive,
bi-wire, passive bi-amp, and full active bi-amp operation. For the full active
bi-amp mode we recommend the use of a high-quality electronic crossover.
Dividing Networks
No.
6
–∞
–6.5
–2.5
0
+1.5
–∞
–6.5
–2.5
0
+1.5
–∞
–6.5
–2.5
0
+1.5
ULTRA HIGH FREQUENCY LEVEL, dB
HIGH FREQUENCY LEVEL, dB
MID FREQUENCY LEVEL, dB
Serial Number:
Professional Series
JBL Incorporated, Northridge, CA USA
Model 4344MkII
Level adjustments
are provided to allow
precision frequency
response contouring. The
midrange, high-frequency,
and ultrahigh-frequency
drivers may be fine-tuned
for optimum sound in any
listening room.
4344 MK 11 Manual 7/21/98 3:18 PM Page 5