Operation Manual

CROSS-OVER FREQUENCY CONTROL (9)

The control has no function in THX mode. Used to set the upper limit of the subwoofer operating range. The

cross-over frequency should be set to 50 to 150 Hz when the system is used in combination with shelf louds-

peakers or 50 to 100 Hz when used with stand loudspeakers.

PHASE CONTROL (10)

The control has no function in THX mode. In normal use the phase control should be set to 0°. However, in rare

cases it may be advantageous to vary the phase to between 0° and 180° (e.g. if the subwoofer is far away from

the front satellites or in the event of unfa-vourable acoustics in the room). Generally speaking: the setting

where the lower base tone area has a more natu-ral sound is the correct one.

FUSE (7)

Only use a fuse with the parameters indicated inside the triangle next to the fuse holder, on the rear of the

ampliﬁer.

AUTOMATIC CALIBRATION

A lot of modern AV amplifiers and receivers provide the option of automatic system calibration via micro-

phone. Calibration is advisable as the levels and distances of all the loudspeakers are determined automati-

cally and, depending on the calibration system, the frequency responses of the connected speakers are also

corrected in order to compensate for poor room acoustics. Please read the user guide for your AV amplifier or

receiver in this regard.

EXPANDING THE SYSTEM

To expand the system for larger rooms and for optimum sound distribution, it is advisable to use a second

subwoofer. This should also be positioned close to the front speakers. Using two subwoofers results in greater

level reserves and more favourable distribution of the sound energy in the bass range, reducing room acoustic

phenomena (humming etc.) in this way.

MAINTENANCE

The lacquered surface is best cleaned with a mild household cleaner. On no account use furniture polish or