Heco Ambient 5.1 A - Manual (Page 10)

Mains connection (1), mains-voltage switch (2)
The subwoofer is equipped with an integrated amplifier and needs to be connected to a mains outlet by
means of the supplied mains cable. The voltage selector has been set at the factory to 230 V for opera-
tion in Europe.
Warning: Connecting the subwoofer to a 230 V mains outlet while the voltage selector is set to 115 V
will lead to immediate destruction of the amplifier!
Power switch (3), operating state LED (4)
Power switch ON Power switch OFF
The automatic switching on/off is activated.
The subwoofer switches on automatically when it receives a signal
from the receiver, the LED turns green.
It automatically switches to standby after receiving no signals for
some minutes, the LED turns red.
In standby mode the power consumption is 0.5 watt.
The subwoofer is switched off,
LED is off.
This is the setting for when
subwoofer isn‘t used over long
periods.
AV input (5)
Connect your receiver‘s low-level subwoofer output (sub-pre-out) to the subwoofer‘s AV input (see Fig.
3). You will require a mono-cinch cable for this (not supplied).
High-level inputs (6)
For connection to the high-level (speaker) outputs of the receiver/amplifier, refer to Fig. 2.
Level control (7)
This control is used to set the bass volume according to your preferences. Proceed as follows::
1. Set the bass control of your amplifier into its centre (linear) position.
2. Important: Set the level control to its left stop (lowest volume).
3. Now, play back some music and set the volume control of the amplifier to the desired level.
4. Set the subwoofer level control to the desired bass level.
Cross-over frequency control (8)
Used to set the upper limit of the subwoofer operating range. In combination with your HECO AMBIENT
satellites, this control should be set to 120 - 150 Hz.
The cross-over frequency control should be set to the maximum value (200 Hz) when AV receivers/
amplifiers are used. The cross-over frequency between the subwoofer and loudspeaker is then set in
the receiver’s/amplifier’s set-up. Please refer to your receiver’s/amplifier’s operating instructions here.
Phase switch (9)
In normal use the phase switch should be set to 0°. However, in rare cases it may be advantageous to
set the phase to 180° (e.g. if the subwoofer is far away from the front loudspeakers or in the event of
unfavourable acoustics in the room). Generally speaking: the setting where the lower base tone area
has a fuller sound is the correct one.
Fuse (10)
Only use a fuse with the parameters indicated next to the fuse holder, on the rear of the amplifier.
10
GB