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TWEETER ATTENUATION SETTINGS
The crossover can be mounted in any location inside the vehicle. Recommended places are: In-
side the door, under the carpet in front of the door angles, under the dash board etc. Just do
not install the crossover unit, where it may be exposed to excessive moisture or water.
Now connect the tweeter wires, the wires from the mid / woofers and the wires from the ampli-
fier to the crossover units. All connections must be connected electrically in phase, which me-
ans positive (+) is connected to positive, and negative (-) to negative.
Out of phase connections, i.e. when a mid/woofer is concerned, will cause very low bass output
and a totally messed-up soundstage.
Tweeter Attenuation
The tweeter attenuation jumper is located inside the crossover, on the circuit board. Four diffe-
rent positions can be selected by moving the jumper to either 0 dB / -1dB / -2dB / -3dB
position.
The jumper allows you to modify the tonal balance in the treble region. The correct attenuation
must be played by ear, as you simply tune the high frequency balance to fit your personal taste.
Attention: Both jumpers must be set to identical positions!
Finally, you should determine if inverse tweeter polarity connection (to the crossover) will give
you better overall sound-quality. This depends on where the tweeter is mounted, and upon the
distance between tweeter and midwoofer etc. You should always invert BOTH tweeter wires at
the crossovers, or connect them BOTH in-phase and then listen for changes in the mirange res-
ponse. One of the two options will sound considerably better. Of course, this is the one to go for!
After determining the correct tweeter attenuation level and the best tweeter connection polarity,
you can remount the top of the crossover housing, reinstall all panels / factory grilles etc. Your
installation is now complete.
Fig.: Jumperposition
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