9
Operation

Power,Active,Sub Bass

Power

The power switch is used to turn the unit on or off.The positive and negative
paths of the power supply are separated in front of the power unit to ensure
that the switched off unit is reliably separated from the mains current.The
lamp in the power switch is powered directly from the mains current in
conformity with CE-regulations, enabling easier detection of faults: If the
power lamp is not illuminated the reason is probably a defective mains fuse.
If the power switch is illuminated but, for instance,the ac tivated Active
switch is not,this points to a fault in the power unit.
If there is a power failure (no mains power or unit switched off) a hard-
bypass relay for each channel switches the signal directly from the inputs to
the outputs thereby maintaining a signal flow under all circumstances.

Active

Active switches the electronics via the hard bypass relais into the signal
path.The button switches a crackle-free relay and offers a fast comparison
between the processed and unprocessed signal.To protect the entire elec-
tronic circuitry the Active switch should be used when the unit is deac-
tivated for a short period.The power switch should only be used when the
equipment is to be turned off for a longer period and it is worth while.

Sub Bass

The Sub Bass filter spans a range of 10 - 200Hz (Frequency control). The
maximum possible boost or cut is +/- 14dB (Cut/Boost control).This filter is a
passive network comprised of a capacitor,resistor and coil.The inductivity of
the coil possesses advantageous acoustic properties in comparison to pure
electronic filter stages.The build-up and decay behavior of the coil is some-
what tardy but in this manner rounder-sounding bass tones are provided.
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Power supply in conformity
with CE regulations
Hard bypass relay maintains
signal flow