Linn ISOBARIK AKTIV, Руководство пользователя

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8
LEVEL ADJUSTMENTS
Have the crossover in a position that makes for easy access from the top. This can be a
temporary position, but ensure there is no hum.
Remove the outer sleeve (four socket head screws underneath).
Looking from the front of the crossover you will see the adjust board containing 6 banks of colour
coded slide switches.
There are 12 solder terminals arranged in vertical pairs to the outside of the switches. These
contain the fixed resistors for the preset response. All the switches should be OFF.
The switches are arranged in a binary sequence such that selecting switch number (X+1) gives
twice the decibel gain step that switch (X) gives. The switches affect only the level of signals fed
to the corresponding drivers and do not affect the crossover frequencies. If the bass setting you
want is with switches 4 and 5 on, then solder a 750ohm resistor in parallel with a 300ohm resistor
across the appropriate solder tags (see table). Turn the switches off and replace the cover.
The steps available are:
Switch Switch dB Step Resistor Colour Code
Colour Number Increase Value
0 (all off) 0
Brown 1 0.25 6.2Kohm BluelRedIRed
Red 2 0.5 3.3Kohm OrangelOrangelRed
Orange 3 1 1.6Kohm BrownIBluelRed
Yellow 4 2 750ohm PurplelGreenIBrown
Green 5 4 330ohm OrangelOrangelBrown
Blue 6 8 130ohm BrownlOrangelBrown
Purple 7 not used
Grey 8 not used
The gain selected is the decibel sum of all the switches in a pack, which are turned on.
The factory-preset values are:
BASS: 330 ohm resistor.
This is equivalent to switch 5 ON or +4dB
MIDDLE: no resistors fitted.
This is equivalent to all switches off or OdB.
TREBLE: 330 ohm resistor.
This is equivalent to switch 5 ON or + 4dB.