2
3
FL-A80
FL-A80
Explanation of Features and Controls
1 Power Switch - This two position switch controls the
power status of the subwoofer.
Off - Turns the unit off.
On - Turns the unit on regardless of whether a signal is
present or not.
2 Subwoofer crossover - This rotary control adjusts a
variable low pass filter to set the upper frequency at
which the output of the subwoofer begins to roll-off.
Continuously variable from 50Hz, it matches the upper
frequency characteristics of the subwoofer to the low
frequency response of the main stereo speakers.
3 Line level input - These RCA phono jacks accept a line
level full range signal from the pre-amplifier output of
a receiver or pre-amplifier. This full range signal pro-
cessed and amplified to power the subwoofer.
4 Speaker level input - These spring loaded terminals for
speaker wire accept a stereo, speaker level, full range
signal from a receiver or power amplifier. This signal is
processed and amplified to power the subwoofer.
5 Fuse - For continued protection replace fuse with same
type and size listed.
6 Level control - This rotary control adjusts the level of
the subwoofer and is used to balance its volume with
that of the main stereo speakers.
7 Status LED - This light emitting diode shows the status
of the subwoofer electronics. “Red” indicates that the
amplifier is plugged in and the power switch is on.
Placement or Positioning
Your new subwoofer will work well in a variety of loca-
tions. However, placement in your listening room will
affect is performance. Since the wavelengths of sound
reproduced by your subwoofer are large compared to its
size, those sounds are omni-directional in nature. This
means that locating your subwoofer in relation to your
left and right main speakers will not affect the directional
cues which they provide. Because the sound you hear
is combination of direct sound from the speaker and
reflected sound from the wall, ceiling and floor of your
listening room, placement of the subwoofer in relation
to room boundaries changes the balance of what you
hear at low frequencies. In that low frequency range,
the dimensions of most rooms are comparable to the
wavelengths of those sounds. As sound propagates and
reflects in the room, “standing waves” are created at
frequencies where the wave length of sound or multiples
of the wave length are equal to one of the dimensions of
the room. At your listening position, these standing wave
patterns of reflected sound add together in and out of
phase causing large variations in the response that you
hear. As a general rule, locating your subwoofer near
the corner of the room will increase its overall output,
but will excite more standing waves in the room and
may result in a more uneven response. Locating your
subwoofer along a wall will usually mean less acoustic
output but a somewhat smoother response. A middle of
the room location would suggest the smoothest response
with the least output capability. Of course, any location
will be a compromise between acoustic performance and
the aesthetic blend of the subwoofer enclosure with the
decor and furnishings of your room. Don’t be afraid to
experiment with the location of your subwoofer in your
room for the best results at your listening position. As
with any other listening test, use program material that
you are familiar with that has substantial bass content.
Set-up and Adjustment
After you have selected an initial location for your
subwoofer and have connected it into your system,
have a seat in your normal listening position and have
someone help you with the following adjustments:
A) If you are using the line level inputs and your main
speakers are receiving a full range signal, set the
subwoofer crossover frequency control to its full
counterclockwise position of 50Hz
B) Set the gain control to the full counterclockwise
position at “minimum”.
C) Turn off the loudness control and set the bass tone
control on your main amplifier to the flat position.
D) Use familiar program material that has substantial
bass content and play your main system at a moderate
volume level.
E) Slowly rotate the subwoofer level control clockwise
until a good balance is achieved between the low
frequency output of your subwoofer and the mid bass
and upper frequencies from your main speakers.
F) Slowly rotate the subwoofer crossover frequency
control clockwise to attain the best blend between the
level of the subwoofer and the main speakers in the
midbass crossover region. Advancing the control too
far will cause a “boominess” in the overall sound and
will add an unnatural “chesty” quality to male voices.
Wiring and connections
Turn off all power to your subwoofer and other equipment
before making any connections. Installation using speaker
level inputs.
Installation with A/V amplifiers and receivers that have
5.1 channel line level output.
Use and RCA “Y” adaptor to connect both line level
inputs
HI LEVEL IN
Or
L
L
R
LINE IN
MIN MAX 50Hz 150Hz
POWER
ON
OFF
FUSE 1A/250V
Made In China
GAIN
FREQ
FROM AMPLIFIER
230 VAC
100 WATTS
50 HZ
5
1
6
2
7
4
3
1A 250V
FRONT
CENTER
SURROUND
LEFT
REAR
RIGHT
REAR
CENTER
FRONT
+
-
+-
+-
HI LEVEL IN
R
L
L
R
LINE IN
MIN MAX 50Hz 150Hz
POWER
ON
OFF
FUSE 1A/250V
Made In China
GAIN
FREQ
FROM AMPLIFIER
120 VAC
100 WATTS
60 HZ
LEFT
FRONT
+ -
RIGHT
FRONT
+ -
1A 250V
FRONT
CENTER
SURROUND
RIGHT
FRONT
LEFT
FRONT
LEFT
REAR
RIGHT
REAR
CENTER
FRONT
+ -
+ -
+
-
+-
+-
OUTPUTS
SUB
HI LEVEL IN
R
L
L
R
LINE IN
MIN MAX 50Hz 150Hz
POWER
ON
OFF
FUSE 1A/250V
Made In China
GAIN
FREQ
FROM AMPLIFIER
120 VAC
100 WATTS
60 HZ
1A 250V
1x
1x
Warranty
2 years after date of purchase for normal use.
Invoice terms and conditions apply.
Dimensions
Technical specifications
• system : active subwoofer
• bass reflex : yes
• magnetical shielded : no
• woofer : reinforced 8” polymica cone
• max power : 200 W
• decibel : 88 dB
• impedance : 4 Ω
• frequence range : 50 Hz - 250 Hz
• dimensions mm (h x w x d) :
158 x 540 x 400
• weight : 8 kg / piece
• colour : black / white
• extra
- bracket for vertical mounting
- individual volume control
- phase control
- high-level inputs
540 mm
158 mm
400 mm
Packaging contents
• 1 subwoofer
• 1 wall bracket
• 1 angled RCA adapter
