Manual
8
THE HECO MUSIC STYLE SUB 25A ACTIVE SUBWOOFER
This subwoofer has been adapted to provide the best visual and acoustic match to the HECO MUSIC
STYLE range of loudspeakers. However, it goes without saying that it may be combined with other
loudspeakers.
When connecting your loudspeaker, please make sure that everything has been switched off. Furthermore,
make sure that all loudspeaker cables are connected to the proper poles, i.e. the positive pole for the
output is connected to the positive pole for the input and the negative pole with the negative pole. Please
also refer to your receiver’s/amplifier’s and loudspeakers’ instructions.
POSITIONING
The frequency range reproduced by the subwoofer cannot be pinpointed by the human ear. That‘s why
positioning generally doesn‘t present any problems. However, it is preferable to place the speaker close
to the front loudspeaker in front of the listening position. You should also make sure that the distance
from the sides to items and walls is at least 30 centimetres and at least 20 centimetres from the rear as
otherwise bass reproduction may be impaired.
THE SUBWOOFER’S OPERATING ELEMENTS (FIG. 1)
Mains connection (1)
The subwoofer is equipped with an integrated amplifier and needs to be connected to a mains outlet by
means of the supplied mains cable.
Mains switch (2), power LED (3), power switch (4)
Mains switch ON Mains switch OFF
Power switch ON Subwoofer is in permanent operation, the power LED
is green.
Favourable setting for the reproduction of
programmes with long quiet passages (this prevents
the subwoofer from switching off unintentionally).
Subwoofer switched off,
Power LED off.
This is the setting for
when subwoofer isn’t
used over long periods.
Power switch AUTO Subwoofer initially in standby mode, the power LED
is red.
The subwoofer switches on automatically when it
receives a signal from the receiver, the power LED
turns green.
It automatically switches to standby after receiving no
signals for some minutes, the LED turns red.
Recommended setting.
Line inputs (5)
For connecting to level outputs on a receiver/amplifier (stereo mode), see Fig. 2.
For connecting to an AV receiver with low-level subwoofer output, see Fig. 3.