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F One
Operating Manual
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F One Active Subwoofer
General description
The Genelec F One is a very compact
active subwoofer designed to complement
Genelec G One or G Two active loudspeak
ers. The F One extends the system’s bass
response down to 35 Hz and integrates
perfectly with the main loudspeakers in
any environment. The playback level for the
whole system is conveniently controlled by
the wireless volume control provided with
the subwoofer. A wired volume control is
available as an option.
The F One has integrated bass management for the two output channels which
directs frequencies below 85 Hz to the
subwoofer and higher frequencies through
the output connectors to the main loudspeakers. When using the subwoofer for the
.1/LFE channel of a multichannel system, we
recommend that bass management is done
in the processor or receiver and only the LFE
channel is connected to the subwoofer.
Installation
Before connecting the audio signals, ensure
that all equipment is switched o.
As the F One contains its own amplier, no
separate power amplier is needed. Never
connect the F One to the loudspeaker out-
puts of a power amplier, integrated amplier or receiver.
Please follow the steps listed below for a
succesful setting up of the subwoofer:
1. Check the contents of the shipment.
in addition to the subwoofer, there is a
wireless remote control, a mains cable,
an IR extension cable and a Quick Setup
Guide.
2. Pull out the battery insulating strip from
the underside of the remote control as
shown in gure 1. This strip insulates the
battery from the contacts on the remote
control during shipping and the remote
control does not function before it is
removed.
3. Place the subwoofer in its position.
4. Connect audio cables from your signal
source(s). You can connect up to two
digital audio sources and two analog
audio sources.
5. Connect the main loudspeakers to the
output connectors of the subwoofer.
6. Adjust the phase of the subwoofer as
instructed in this manual and the Quick
Setup Guide.
7. Use test recordings and familiar music
pieces to judge the sound balance. Use
the “SUBWOOFER LEVEL” rotary control
and the “BASS ROLL-OFF” dip switches
to ne-tune the balance. If this fails,
consider relocating the subwoofer.
Operating Environment
The F One subwoofer is designed for
indoor use only. The ambient temperature
should be 15-35 °C (50-95 °F) and the rela
tive humidity 20-80 %. Condensation is not
allowed. If it has been stored or transported
in a cool environment, the product must be
allowed to warm up in its packing to the
ambient temperature before connecting
mains power.
Connectors
The F One is equipped with both analog
and digital signal input connectors, that
can be used simultaneously to connect
Figure 1. Removing the battery insulating strip
from the remote control
up to four audio sources (two analog, two
digital). Switching between sources is done
with the Select button on the connector
panel or with the “<” and “>” buttons on
the remote control. The colour of the LED
light on the subwoofer enclosure indicates
which source is selected.
Analog Input Connectors
The F One has two stereo inputs (3.5 mm
jack and L/R RCA connectors) and an LFE
RCA connector. The stereo inputs are par
allel, so you can connect two audio sources
at the same time, just play only one of them
at a time. The Select function does not
work between these two inputs. The LFE
input is used for the LFE (.1) signal in a
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2.1 or 5.1 channel sound system. The LFE
input has a 120 Hz low pass lter, so it is
not suitable for full frequency range signals.
Digital Input Connectors
The F One has two digital signal input connectors, one coaxial and one optical, that
accept stereo PCM format digital signal. You
can connect two digital sources and switch
between them using the Select function.
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ROLLOFF
L
OUT
R
R
IN
L
STEREO
LFE
COAXIAL
OPTICAL
DIGITAL
AUDIOIN
IR IN
LED OFF
ISS SENSITIVITY LOW
ISS
HT MODE
292 F1BT 6
www.genelec.com MADE IN FINLAND
SYSTEM
VOLUME
CONTROL
MAX
MIN
SUBW LEVEL
ON
OFF
SYSTEM VOLUME
CONTROL CONNECTOR
SUBWOOFER LEVEL
ROTARY ADJUSTMENT
DIP SWITCH GROUP:
ROLL OFF
PHASE
ANALOG AUDIO INPUTS:
RCA L AND R
3.5 MM STEREO JACK
LFE
DIP SWITCH GROUP:
HT MODE
ISS SENSITIVITY LOW
ISS
LED OFF
RCA L AND R
AUDIO OUTPUT
CONNECTORS
DIGITALAUDIO INPUTS:
RCA COAXIAL
TOSLINK OPTICAL
MAINS INPUT
POWER BUTTON
IR IN CONNECTOR
SELECT BUTTON
4dB
2dB
PHASE
0/ 180°
0/ 90°
Figure 2. Connectors and controls of the F One.
Figure 3. Audio cabling
SELECT
DIGITAL
AUDIOIN
L
L
OUT
IN
RR
COAXIAL
OPTICAL
STEREO
LFE
ISS SENSITIVITY LOWISS
HT MODE
IR IN
LED OFF
F One Active Subwoofer
PHASE
ROLL OFF
4dB
0/ 180°
2dB
SUBW LEVEL
F One Active Subwoofer
www.genelec.com MADE IN FINLAND
SYSTEM
VOLUME
CONTROL
0/ 90°
MAX
MIN
ON
OFF
ANALOG SIGNAL SOURCES:
PHONE, COMPUTER, AV RECEIVER ETC.
GIZMO
292 F1BT 6
DIGITAL SIGNAL SOURCES:
TV, STREAMER, SOUND CARD ETC.
Tuner87.5MHz
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Subwoofer
ONS
placement
Near a wall -2 dB
In a corner -4 dB
Table 1. Suggested Bass Roll-Off settings in
typical situations
VOLUME
DOWN
POWER
Figure 4. F One remote control
Bass Roll-O
VOLUME
UP
SELECT
BUTT
MUTE
Analog Output Connectors
The F One has RCA analog stereo L/R
output connectors. Connect signal cables
from these connectors to the main speak
ers. These outputs are high pass ltered
at 85 Hz (See chapter Bass Management).
nformation.
System Volume Control Connector
This connector allows connecting the
Genelec 9310A Wired Volume Control
which is available as an accessory. When
connected, the 9310A controls the volume
of the whole system, including the main
speakers.
IR IN Connector
If the F One is used with an infrared type
remote control (see chapter Use with IR
Remote Controls) and the desired location
of the subwoofer does not allow an unob
structed line of sight to the receiver located
next to the LED in one of subwoofer’s feet,
the IR extension cable provided with the
subwoofer can be connected here. The
receiver end of the cable is then brought
to a location where the IR remote control
reception works conveniently, for instance
close to the IR receiver of a television set
when using the subwoofer and speakers
with a TV.
Functions And Controls
HT Mode
Turn this switch to “ON” when you connect a
sound source with its own volume control to
the analog inputs of the F One. In this mode
the volume control of the F One does not
have eect on the analog signals. However,
it works with the digital inputs, so you can
use them to connect other signal sources.
ISS Sensitivity Low
If the Intelligent Signal Sensing (ISS) function switches the subwoofer on when there
is no audio signal present, turning this
switch to “ON” reduces the triggering sen
sitivity of the function.
ISS
The Intelligent Signal Sensing (ISS) function monitors the audio signal fed to the
subwoofer. If there is no signal for approxi
mately 45 minutes, the function switches
the subwoofer to Standby mode, reduc
ing the power consumption to less than
0.5 Watts. When the signal resumes, the
subwoofer powers up again. There is a
slight delay in the automatic powering up.
In those environments where the subwoofer
is required to be on all of the time, the ISS
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function can be disabled by setting the
“ISS” switch to the “OFF” position. Then
the subwoofer is continuously powered and
can be turned o using the power button on
the remote control or connector panel.
LED Off
This switch deactivates the status indicator
LED on the “foot” of the subwoofer.
Roll-Off
These two switches attenuate the subwoofer’s bass response below 35 Hz.
Attenuation levels are -2, -4 and -6 dB
(both switches “ON”).
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These two switches provide phase adjustment for the subwoofer in -90 degree increments. See chapter “Phase Alignment”.
This rotary adjustment adjusts the playback level of the subwoofer. The level is
increased by turning the adjustment clock
wise and reduced by turning it counterclockwise.
Phase
Subwoofer Level
Select
This button allows signal input selection
between the two digital inputs and the
analog input and initiation of the match
ing procedure for IR remote controls (see
Matching IR Remote Controls).
Power
This button switches the subwoofer
between Standby and Power mode. Note
that this button does not completely dis
connect the subwoofer from the mains
power. If this is necessary, the subwoofer’s
mains cable must be disconnected. This
button can also be used for restoring the
factory settings by keeping it depressed for
10 - 15 seconds. This returns the volume
setting on the remote control to factory
level and deletes possible remote control
pairing and IR remote control matching.
Also the source selection returns to auto
matic, which is the factory setting.
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Positioning In The Room
The placement of the subwoofer in the
room aects the overall frequency response
and sound level of the system dramatically,
as at low frequencies the effects of the
room are strong. Even a slight change in
the location of the subwoofer can cause a
marked dierence in the frequency balance
and often patient and methodical experi
mentation and testing is needed to nd the
optimum placement.
The placement will also aect the bass
roll-off rate and the phase difference
between the main loudspeakers and the
subwoofer. These eects can be compensated using the controls in the subwoofer
but we recommend that at rst you leave
the switches untouched and concentrate
on nding the position where the subwoofer
gives the smoothest response, and only then
use the controls to ne-tune the balance and
phase alignment between the subwoofer
and the main loudspeakers.
Start by placing the subwoofer close to the
center of the front wall. We recommend
a distance of less than 60 cm / 24” to the
wall. This position gives increased acoustic loading and sound pressure level due to
the proximity of the front wall and oor. Ideally the subwoofer and main loudspeakers
should be positioned symmetrically and at
an equal distance from the listening position.
If the frequency balance is not quite right,
try moving the subwoofer to the left or right
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along the wall so that dierent room modes
are excited at dierent levels. Positioning
the subwoofer close to a corner will boost
the bass level at lower frequencies and may
cause asymmetrical spatial imaging.
ISSTM Autostart
The automatic power saving function ISS
(Intelligent Signal Sensing) can be activated
by setting the “ISS” switch on the connec
tor panel to “ON.” Automatic powering
down to standby mode happens after a
certain time when playback has ended. The
power consumption in standby mode is
typically less than 0.5 watts. Playback will
automatically resume once an input signal
is detected from any source.
Alternatively, the subwoofer can be activated by pushing any button on the remote
control.
There is a slight delay in the automatic
powering up. If this is undesirable, the ISS
function can be disabled by setting the “ISS”
switch on the connector panel to “OFF.” In
this mode, the subwoofer is powered on and
o using the remote control or the power
button on the connector panel.
The “ISS SENSITIVITY LOW” switch
lowers the triggering sensitivity of the
ISS function. This can be necessary if the
subwoofer “wakes up” even if there is no
audio signal.
TM
Setting The Playback Level
The rotary “SUBWOOFER LEVEL” level
adjustment can be used for matching the
subwoofer’s playback level with the main
loudspeakers.
Setting The Bass Roll-Off
Switches
The acoustic response of the subwoofer
may have to be matched to the charac
teristics of the room and the positioning in
which it will be used (see Table 1). To adjust
the subwoofer to match these character
istics use the ‘’BASS ROLL-OFF’ control
switches located on the connector panel.
When all Roll-O switches are ‘OFF’, a at
anechoic response is obtained.
Setting The Phase Control
The effect of incorrect phase alignment
between the main loudspeakers and
the subwoofer is a drop in the frequency
response of the whole system at the main
loudspeaker / subwoofer crossover fre
quency. The phase dierence between the
main loudspeakers and subwoofer at the
listening position is dependent upon the
distance from the listener to the subwoofer
in relation to the main loudspeakers. To
avoid phase differences between the
left and right main loudspeakers and
the subwoofer, the subwoofer should be
placed close to the center of the front loud
speaker array.
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Two phase matching switches allow compensation for incorrect phase alignment.
Four settings are provided between 0° and
-270°.
Coarse Phase Correction
Method
Connect an audio frequency signal generator to a signal input on the subwoofer
which has a main loudspeaker connected
to the corresponding “OUT” connector.
If the loudspeakers are placed at differ
ent distances from the listening position,
choose the loudspeaker that is nearer.
Set the generator to 85 Hz. If a signal generator is not available, it is possible to use
an audio test recording which has a test
frequency in the range 70 Hz to 100 Hz.
Suitable test signals can be downloaded at
www.genelec.com and found in some smart
phones.
Toggle the -180°
phase switch
‘ON’ and ‘OFF’
and set it to the
ON
position which
gives the lowest
OFF
sound level at the
listening position.
Next toggle the
-90°phase switch
‘ON’ and ‘OFF’,
and again set it
ON
to the position
which gives the
OFF
lowest sound
level.
Finally, set the
-180°phase
switch to the
opposite setting.
ON
OFF
-
-
-
ROLL OFF
-4dB
-2dB
ROLL OFF
-4dB
-2dB
ROLL OFF
-4dB
-2dB
PHASE
0/ 180°
0/ 90°
PHASE
0/ 180°
0/ 90°
PHASE
0/ 180°
0/ 90°
Matching IR Remote
Controls
The F One subwoofer can be used with
most IR remote controls, providing con
venient use with, for instance, the remote
control of a TV set when connected to it
via a xed level digital signal input. Turn the
subwoofer upside down so you can easily
reach the “Select” button on the subwoof
er’s connector and the status indicator LED
on the subwoofer’s foot is visible. The IR
receiver is located in the LED. Note that the
“Select” buttons on the RF remote control
provided with the subwoofer do not actu
ate the matching.
The matching procedure is as follows:
• Keep the “Select” button on the
subwoofer depressed until the status
indicator LED starts blinking red.
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• Choose the button on the remote
control that you want to actuate “volume
up” function. Keep it depressed until the
LED stops blinking. With some remote
controls pressing the button multiple
times works better.
• Now the LED blinks green, indicating
that the button for “volume down” can be
selected. Follow the procedure described
above.
• Next the LED blinks blue for selection of
the button for “Select” button.
• Yellow LED indicates the selection of
“Mute” button.
• Magenta LED indicates the selection of
“Power” button.
A short press on the “Select” button allows
you to skip a step in the procedure, if you
do not want to “teach” all the commands
listed above. If you want to interrupt the
procedure, press “Select” for approxi
mately two seconds. This saves the settings made so far. If you don’t want to
save the settings, press the Power button
for two seconds. This will also delete the
matching settings done by that point. If you
want to change the matched buttons, just
redo the matching process.
Matching The RF Remote
Control To The Subwoofer
When shipped, the remote controls delivered
with F One subwoofers will function with any
other F One subwoofer as well. If this is not
desirable, for instance when there are sev
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Page 6
eral F One subwoofers in the same premises,
and the user wishes to avoid the situation
that more than one subwoofer reacts to the
commands given by each remote control, the
remote controls can be matched to operate
only one subwoofer.
1. Press and hold down the “Power” and
“Select “ buttons on the subwoofer until the
LED starts blinking white.
2. While the LED is blinking, rst press
and hold down the volume “+“ button on
the remote control and then the volume “-“
button. Keep both buttons pressed for a few
seconds until the status indicator LED on the
subwoofer stops blinking. This indicates that
matching is completed and the matching
operation ends automatically.
Now the subwoofer should only respond
to commands given by the matched remote
control, and respectively, the matched
remote control should not work with other
F Two units. For cancelling the matching
operation while the LED is blinking, press
and hold down the ”Power” button on the
subwoofer for two seconds. If you wish to
undo a matching completely, press and hold
down the ”Power” button on the subwoofer
for ten seconds.
NOTE: In some cases the local WiFi
network can cause problems with the RF
remote control, if they operate on the same
wavelength. We recommend the use of an IR
remote control in these cases.
Safety Considerations
The Genelec F One complies with international safety standards. However, to ensure
safe operation and maintain the equipment
in safe operating condition the following
warnings and cautions must be observed.
• Do not expose the subwoofer to water
or moisture. Do not place any objects
lled with liquid, such as vases on the
subwoofer or near it.
Note that the amplier is not completely
disconnected from the AC mains service
unless the mains cable is removed from the
amplier or the mains outlet.
Warning!
This equipment is capable of delivering sound pressure levels in excess of 85
dB, which may cause permanent hearing
damage.
Compliance To FCC Rules
Remote control
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol
lowing two conditions:
(1) this device may not cause harmful inter
ference, and (2) this device must accept
any interference received, including inter
ference that may cause undesired operation. This product emits radio frequency
energy, but the radiated output power of
this device is below FCC radio frequency
exposure limits. This equipment complies
with FCC RF radiation exposure limits forth
for an uncontrolled environment. Neverthe
less, the device should be used in such a
manner that the potential for human con
tact with the antenna during normal operation is minimized.
Changes or modifications not expressly
approved by the party responsible for com
pliance could void the user’s authority to
operate the equipment.
Figure 5. Changing the remote control battery
lation. This equipment generates, uses and
can radiate radio frequency energy and, if
not installed and used in accordance with
the instructions, may cause harmful inter
ference to radio communications. However,
there is no guarantee that interference will
not occur in a particular installation. If this
equipment does cause harmful interference
to radio or television reception, which can
be determined by turning the equipment
o and on, the user is encouraged to try to
correct the interference by one or more of
the following measures:
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• Reorient or relocate the receiving
antenna.
• Increase the separation between the
equipment and receiver.
• Connect the equipment into an outlet
on a circuit dierent from that to which the
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receiver is connected.
• Consult the dealer or an experienced
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radio/TV technician for help.
Modications not expressly approved by
the manufacturer could void the user’s
authority to operate the equipment under
FCC rules.
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• Do not use this product with an
unearthed mains cable or a mains
connection without the protective earth
contact as this may lead to personal
injury.
• Danger of explosion if battery is
incorrectly replaced. Replace only with the
same or equivalent type.
• The battery shall not be exposed to
excessive heat such as sunshine, re or
the like.
• Servicing and adjustment must only be
performed by qualied service personnel.
• Opening the subwoofer is strictly
prohibited except by qualied service
personnel.
Subwoofer
This device complies with part 15 of the
FCC Rules. Operation is subject to the fol
lowing two conditions:
This device may not cause harmful interference, and this device must accept any
interference received, including interfer
ence that may cause undesired operation.
Note: This equipment has been tested and
found to comply with the limits for a Class
B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed
to provide reasonable protection against
harmful interference in a residential instal
Changing The Remote
Control Battery
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The remote control battery can be changed
by turning the battery cover on the back
of the remote control anticlockwise. Use
a small screwdriver under the right side of
the battery (see gure 5) to wedge the battery out. Replace the battery with a similar
CR2032 type battery. Insert the battery with
the left side rst as shown in gure 5 and
close the battery cover.
Take the used battery to your local battery recycling point. Under no circumstances
should the battery be disposed with general
dry waste.
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Maintenance
There are no user serviceable parts inside
the subwoofer. Any maintenance of the unit
must only be performed by qualied service
personnel.
Guarantee
This product is supplied with two year
guarantee against manufacturing faults or
defects that might alter the performance of
the unit. By registering your product at:
www.community.genelec.com
You can get an additional three year guarantee that covers the spare parts.
Page 8
F One
Operating Manual
SYSTEM SPECIFICATIONS
F One
Free eld frequency response (-6 dB) Main 35 Hz...85 Hz
LFE 35 Hz...120 Hz
Maximum short term sine wave SPL output
100 dB
averaged from 30 to 85 Hz, measured in half
space at 1 meter
Self generated noise level in half space at 1 m
≤ 5 dB SPL
on axis (A-weighted)
Driver, magnetically shielded 165 mm (6 1/2 in)
Weight 5.6 kg (12.3 lb)
Dimensions
Height
Diameter
256 mm (9
305 mm (12”)
7
/8”)
AMPLIFIER SECTION
F One
Amplier short term output power
(Long term output power is limited by driver
unit protection circuitry)
Amplier system THD at nominal output ≤ 0.05 %
Mains voltage 100 - 240 VAC 50/60 Hz
Power consumption (average)
Stand by
Idle
Full output
40 W
0.5 W
5 W
60 W
CONNECTORS
F One
Analog audio inputs 10 kOhm
RCA
3.5 mm stereo jack
L, R, LFE
1
Digital audio inputs
Optical Toslink
Coaxial RCA 75 Ohm
1
1
Audio outputs
RCA L, R
CROSSOVER SECTION
F One
Subsonic lter (18 dB/octave) below 35 Hz
Crossover frequency
(subwoofer/main channels)
LFE channel cuto frequency 120 Hz
Midband rejection >400 Hz
Analog input level for 90 dB SPL output at
1 m
Digital input level for 90 dB SPL output at 1 m -19dBFS at level control
Digital input word length 16...24 bits
Digital input sample rate 32...96 kHz
Sensitivity adjustment range 18 dB
Bass Roll-O control operating range
in 2 dB steps
Phase matching control in 90° steps From 0 to -270° @ 85 Hz
85 Hz
>50 dB
-8 dBu at level control
max
max
From 0 to -6 dB @ 35 Hz
Genelec Document D0163R001. Copyright Genelec Oy 5.2019. All data subject to change without prior notice
International enquiries:
Genelec, Olvitie 5
FIN-74100, Iisalmi, Finland
Phone +358 17 83881
Fax +358 17 812 267
Email genelec@genelec.com
In the U.S. please contact:
Genelec Inc., 7 Tech Circle
Natick, MA 01760, U.S.A.
Phone +1 508 652 0900
Fax +1 508 652 0909
Email genelec.usa@genelec.com
In China please contact:
Beijing Genelec Audio Co. Ltd.
Jianwai SOHO, Tower 12, Room 2605
39 East 3rd Ring Road, Chaoyang District
Beijing 100022, China
Phone +86 10 5869 7915
Fax +86 10 5869 7914
www.genelec.com
In Sweden please contact
Genelec Sverige
Ellipsvägen 10B
P.O. Box 5521, S-141 05 Huddinge
Phone +46 8 449 5220
Fax +46 8 708 7071
Email info@genelec.com
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