Altronics C 5201 User manual
174 Roe Street, PERTH.
Western Australia. 6000
Phone: 1300 797 007
Fax: 1300 789 777
Internet: www.altronics.com.au
Dealers Throughout Australia
Home Theatre System / Hi-Fi
Active Subwoofer
A subwoofer can add a new dimension to your
listening pleasure. The inclusion of a sub-woofer
will enhance existing sound systems and add a
touch of realism to any home theatre system.
C 5201
C 5201 Subwoofer Instructions
Connection details
Please refer to fig. 1 and fig 2 on the following pages.
The RCA inputs (or low level inputs) are for direct connection
to the amplifier auxiliary output or, subwoofer output. Note
that an auxiliary output may be a constant level output (and
not affected by the amplifier volume control). If this is the only
low level output on the amplifier, it may be preferable to use
the speaker outputs.
The high level inputs are for direct connection to the amplifier.
Note that the subwoofer speaker can be wired in parallel to the front
speaker outputs without any changes to the speaker impedance.
Controls:
Crossover frequency
This control varies the cutoff point for the bass frequencies going into
the subwoofer amplifier. This control can be adjusted as desired on the
front panel or via the included remote control.
Phase Switch
If the subwoofer has been wired out of phase, this will exhibit
itself as a “hole” in the signal. The phase switch can correct this
problem. To correct the problem set the phase switch to 180° . If
there is no “hole” in the signal leave the phase switch set to 0°
Volume control
This control can be adjusted from the front panel or via the included
remote control.
ON / OFF switch
The unit features an auto power up and auto power down. When
switched on and in standby mode the power indicator will illuminate
red. When a signal is present the power indicator will turn green to indi-
cate that the subwoofer is on. At a given input signal level (factory set)
the subwoofer will switch on. When the input signal has been turned
off, or the input source volume is set to a very low setting, the sub-
woofer will auto power off after about 10 minutes. When the input sig-
nal is restored the unit will again auto power up.
Specifications
Maximum power output ..............................................180W
RMS power output (0.1% THD) ....................................120W
Amplifier frequency response ................................20-200Hz
Input sensitivity - RCA ................................................160mV
Input impedance - RCA ............................................30k ohm
Input sensitivity - binding post ......................................3.2V
Input impedance - binding post ..............................200 ohm
Speaker size..............................................................254mm
SPL ............................................................87dB @ 1W, 1m
WARNING
There are no user serviceable parts inside the unit. Do
not open the unit. If the fuse blows, only replace with
an equivalent 1.6A fast blow fuse.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure they do not
play with the appliance.
If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
Page 2
Fig1: Connection of the C 5201 via low level or RCA
inputs. NOTE: The high level outputs will not produce any
output in this configuration.
Fig3: Connection of the C 5201 to a 5.1 channel home theatre amplifier. NOTE:
Most amplifiers have a mono RCA output for subwoofers, connect this up to
either left or right on the subwoofer’s input.
Fig2: Connection of the C 5201 via high level or speaker inputs.
Troubleshooting hum noise (Fig 4)
If a hum exists in your subwoofer after connection to your sys-
tem we suggest that the mains power is connected to the
same mains power outlet as the amplifier and input sources.
If this is not possible we suggest a ground loop isolator such
as an Altronics C 9555 is inserted in the signal line (ie RCA
inputs) between the main amplifier and the subwoofer unit.
Fig4: In the event of hum in your signal, insert a
ground loop isolator between the subwoofer and the
amplifier.
Typical 5.1 Channel System Setup.
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