Regardless of whether you buildY To build Ochips� from discrete
or buy it, the necessary resistorresistors, solder the resistores to
network has the followinga standard 14-pin ODIP Head�
configuration:according to the diagram. If a
DIP Header is not available, you
Custom OChip� Constructionmay bend the leads of 1/4 watt
resistors 90 degrees, trim them
to 3mm-length, and insert them
directly into the chip sockets.
To change the crossover frequency
change the resistor network as
follows:
1. Remove the screws from the
bottom panel as shown below.
2. Select which resistor module,
high pass or low pass, that you
wish to change.
3. A chip puller, wich can be
Y Each resistor in the package hasobtained from any electronics
the same value.store, is used to remove the
Y If you kvow the crossoverresistor chip. Pull the resistor
frequency you want, you canchip from the socket as shown
calculate the resistor valuein figur below.
necessary by solving the
following equation:
Resistor2,500,000
Value=Crossover
JBL INC.
in OhmsFrequency in HzNORTHRIDGE, CAJBL GTS600PC00108800REV A
CROSSOVERLOW PASSFILTERFREQUENCYSELECTIONMODULE
C10
C13
HIGH PASSFILTERFREQUENCYSELECTIONMODULE
Y Use the following equation if
you have a resistor pack of a
known value, and want to find4. Place the new module in the
itOs crossover frequency:socket making sure all pins are
lined up with the socket holes.
Crossover2,500,000Press the module firmly into the
Frequency =Crossoversocket.
in Hz ResistorValue in Ohms5. Replace the bottom lid.
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