Bose LT 6400, Manual

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LT 6400 and LT 9400 Crossover Board Layout Diagram
The LT 6400 and LT 9400 loudspeakers both use the same bare board for their crossover
assemblies. The only differences are the components populating the board. See the table below.
Reference Designator LT 6400 Crossover PCB
Component Values
LT 9400 Crossover PCB
Component Values
Capacitors
C1 Not used Not used
C2 Not used Not used
C3 40uF / 200V 40uF / 200V
C4 Not used Not used
C5 4.7uF / 100V 4.7uF / 100V
C6 3.9uF / 100V 3.9uF / 100V
C7 20uF / 100V 20uF / 100V
C8 20uF / 100V 20uF / 200V
C9 5uF / 100V 5uF / 200V
Inductors
L1 Not used Not used
L2 Not used Not used
L3 .68mh / 0.7 Ohms .68mh / 0.7 Ohms
L4 .27mh / 0.4 Ohms .27mh / 0.4 Ohms
L5 Not used Not used
L6 .68mh / 0.6 Ohms .68mh / 0.6 Ohms
L7 .82mh / 0.7 Ohms .82mh / 0.7 Ohms
L8 .56mh / 0.6 Ohms .56mh / 0.6 Ohms
Resistors
R1 Not used Not used
R2 20 Ohm / 15 Watt 4 Ohm / 15 Watt
R3 10 Ohm / 15 Watt 20 Ohm / 15 Watt
R4 1 Ohm / 15 Watt Not used