Toa NF-2S User manual

INSTRUCTION MANUAL
NF-2S
NF-CS1
WINDOW INTERCOM SYSTEM
EXPANSION SET
Thank you for purchasing TOA’s Window Intercom System.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
Sub-Unit
Distributor
Base Unit

2
TABLE OF CONTENTS
1. SAFETY PRECAUTIONS ....................................................................................................... 3
2. GENERAL DESCRIPTION .................................................................................................... 5
3. FEATURES ............................................................................................................................... 5
4. USAGE PRECAUTIONS ......................................................................................................... 6
5. INSTALLATION PRECAUTIONS .......................................................................................... 6
6. NOMENCLATURE .................................................................................................................. 7
6.1. NF-2S ................................................................................................................................. 7
6.2. NF-CS1 ............................................................................................................................ 11
7. CONNECTIONS ..................................................................................................................... 12
7.1. Basic System Conguration ............................................................................................. 12
7.2. Connection of Commercially Available Headsets ........................................................... 13
7.3. Connection of Mute Switch ............................................................................................. 14
7.4. Sub-Unit Expansion ......................................................................................................... 15
8. INSTALLATION ..................................................................................................................... 16
8.1. Base Unit Installation ....................................................................................................... 16
8.2. Sub-Unit Installation ........................................................................................................ 16
9. CHANGING AUDIO OUTPUT SETTINGS ........................................................................ 18
10. VOLUME ADJUSTMENT ................................................................................................... 19
11. DOWNLOAD SITE ............................................................................................................... 19
12. REGARDING OPEN SOURCE SOFTWARE ................................................................... 19
13. SPECIFICATIONS ............................................................................................................... 20
13.1. NF-2S .............................................................................................................................. 20
13.2. NF-CS1 .......................................................................................................................... 21

3
1. SAFETY PRECAUTIONS
• Before installation or use, be sure to carefully read all the instructions in this section for
correct and safe operation.
• Be sure to follow all the precautionary instructions in this section, which contain important
warnings and/or cautions regarding safety.
• After reading, keep this manual handy for future reference.
Indicates a potentially hazardous situation which, if mishandled,
could result in death or serious personal injury.
WARNING
• Do not expose the unit to rain or an environment where it may be splashed by water or other
liquids, as doing so may result in re or electric shock.
• Since the unit is designed for indoor use, do not install it outdoors. If installed outdoors, the
aging of parts causes the unit to fall off, resulting in personal injury. Also, when it gets wet
with rain, there is a danger of electric shock.
• Avoid installing the Sub-Unit in locations exposed to constant vibration.
Excessive vibration can cause the Sub-Unit to fall, potentially resulting in personal injury.
• Should the following irregularity be found during use, immediately switch off the power,
disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer.
Make no further attempt to operate the unit in this condition as this may cause re or electric
shock.
· If you detect smoke or a strange smell coming from the unit
· If water or any metallic object gets into the unit
· If the unit falls, or the unit case breaks
· If the power supply cord is damaged (exposure of the core, disconnection, etc.)
· If it is malfunctioning (no tone sounds)
• To prevent a re or electric shock, never open nor remove the unit case as there are high
voltage components inside the unit. Refer all servicing to qualied service personnel.
• Do not place cups, bowls, or other containers of liquid or metallic objects on top of the unit. If
they accidentally spill into the unit, this may cause a re or electric shock.
• Do not insert nor drop metallic objects or ammable materials in the ventilation slots of the
unit’s cover, as this may result in re or electric shock.
• Avoid positioning sensitive medical equipment in close proximity to the Sub-Unit magnets,
as the magnets could adversely affect the operation of such sensitive medical equipment as
pacemakers, potentially leading to patients fainting.

4
Applicable to NF-2S only
• Use the unit only with the voltage specied on the unit. Using a voltage higher than that which
is specied may result in re or electric shock.
• Do not cut, kink, otherwise damage nor modify the power supply cord. In addition, avoid using
the power cord in close proximity to heaters, and never place heavy objects -- including the unit
itself -- on the power cord, as doing so may result in re or electric shock.
• Do not touch a power supply plug during thunder and lightning, as this may result in electric
shock.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION
• Avoid installing the unit in humid or dusty locations, in locations exposed to the direct sunlight,
near the heaters, or in locations generating sooty smoke or steam as doing otherwise may
result in re or electric shock.
• To avoid electric shocks, be sure to switch off the unit’s power when connecting speakers.
• Do not operate the unit for an extended period of time with the sound distorting. Doing so
may cause the connected speakers to heat, resulting in a re.
• Avoid placing any magnetic media in close proximity to the Sub-Unit magnets, as this could
have a harmful effect on the recorded contents of magnetic cards or other magnetic media,
possibly resulting in damaged or destroyed data.
Applicable to NF-2S only
• Never plug in nor remove the power supply plug with wet hands, as doing so may cause
electric shock.
• When unplugging the power supply cord, be sure to grasp the power supply plug; never pull
on the cord itself. Operating the unit with a damaged power supply cord may cause a re or
electric shock.
• When moving the unit, be sure to remove its power supply cord from the wall outlet. Moving
the unit with the power cord connected to the outlet may cause damage to the power cord,
resulting in re or electric shock. When removing the power cord, be sure to hold its plug to
pull.
• Make sure that the volume control is set to minimum position before power is switched on.
Loud noise produced at high volume when power is switched on can impair hearing.
• Be sure to use only the designated AC adapter and power cord. Using any other than the
designated components could result in damage or re.
• If dust accumulates on the power supply plug or in the wall AC outlet, a re may result. Clean
it periodically. In addition, insert the plug in the wall outlet securely.

5
The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shall
be easily accessible.
• Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes
when cleaning or leaving the unit unused for 10 days or more. Doing otherwise may cause a
re or electric shock.
• Note on the Use of Headsets: Be sure to perform the designated settings before using
headsets, as failure to follow the instructions provided could generate overly loud sound
output, possibly resulting in the temporary impairment of hearing.
Applicable to NF-CS1 only
• Do not connect headsets directly to the Distributor.
If headsets are plugged into the Distributor, output from the headsets may become overly loud,
potentially resulting in temporary impairment of hearing.
2. GENERAL DESCRIPTION
[NF-2S]
Consisting of one Base Unit and two Sub-Units, the NF-2S Window Intercom system is designed
to relieve problems in understanding face-to-face conversations through a partition or face masks.
Since the Sub-Units’ built-in magnets allow them to be easily attached to both sides of a partition,
they can be used even in locations without ample mounting space.
[NF-CS1]
The NF-CS1 Expansion Set is designed exclusively for use with the NF-2S Window Intercom System,
and consists of a System Expansion Sub-Unit and a Distributor for sound distribution. The coverage
area for assisted conversations can be expanded by increasing the number of NF-2S Sub-Units.
3. FEATURES
[NF-2S]
• Provides full, intuitive support for simultaneous two-way conversation thanks to DSP signal
processing and wideband audio output, while eliminating dropouts in sound output.
• Compact and lightweight Sub-Unit design facilitates installation.
• Magnetically mounted Sub-Units are easily installed, eliminating the need for brackets and other
metal ttings.
• Allows easy connection of commercially available headsets*1 as a replacement sound source for
either of the pair of Sub-Units.
• External control input terminal of MUTE IN allows easy muting microphone for Sub-Unit or Headset*
which is connected to input A.
* Headsets not supplied. Please purchase separately. TOA does not have any headsets available that are
compatible with these products. (See "Connection of Commercially Available Headsets" on p. 13.)
[NF-CS1]
• Compact and lightweight design of Sub-Unit and Distributor facilitates installation.
• Magnetically mounted Sub-Units are easily installed, eliminating the need for brackets and other
metal ttings.

6
4. USAGE PRECAUTIONS
• Do not remove the rubber feet attached to the rear panel of the Sub-Units. Purposely removing
these rubber feet or using the Sub-Units with their rubber feet detached could result in unit failure.
• If howling* (acoustic feedback) occurs, lower the volume or change the mounting locations of the
Sub-Units.
* An unpleasant, high-pitched shrieking noise produced when the output signal from a speaker is
picked up by the microphone and reamplied in an endless intensifying loop.
• When installing multiple NF-2Ss in the same location or area, try to maintain at least a 1 m (3.28 ft)
distance between adjacent Sub-Units.
Follow the above procedure when using the NF-CS1 to increase the number of Sub-Units.
• If the units become dusty or dirty, wipe lightly with a dry cloth. If the units become especially dirty, wipe
lightly with a soft cloth moistened with water-diluted neutral detergent, then wipe again with a dry
cloth. Never use benzine, thinner, alcohols or chemically-treated cloths, under any circumstances.
• The recommended distance from a speaking person’s mouth to the Sub-Unit microphone is 20 –
50 cm (7.87" – 1.64 ft). If the units are too far away from the user, the voice could become difcult
to hear or the sound may not be picked up correctly. If too close, the voice output could become
distorted, or howling could occur.
• Avoid blocking the front sub-unit microphone with ngers, objects or the like, as the audio signal
cannot be correctly processed, potentially resulting in abnormal or highly distorted sound output.
A similar type of sound distortion may also be generated when the front of the Sub-Unit is blocked
due to it having fallen or other similar incident. This distortion, however, will likely vanish once the
Sub-Unit is returned to its normal installed position. (Please keep in mind that this distorted sound
does not indicate equipment failure.)
5. INSTALLATION PRECAUTIONS
[NF-2S]
• The supplied AC adapter and power cord* are designed exclusively for use with the NF-2S system.
Do not use these to power any other devices than the NF-2S system.
• Use the dedicated cables for connection between the Base Unit and the Sub-Units.
• The supplied dedicated cables are exclusively designed for use with the NF-2S. Do not use them
with any other devices than the NF-2S system.
• Do not connect any external devices to the Base Unit other than the Sub-Units, compatible headsets
or the optional Distributor.
* No AC adapter and power cord are supplied with the version W. For usable AC adapter and power
cord, consult your nearest TOA dealer.
[NF-CS1]
• The supplied dedicated cables are exclusively designed for use with the NF-CS1 and NF-2S. Do
not use them with any other devices than the NF-CS1 and NF-2S.
• Up to three Sub-Units (two Distributors) can be connected to each of the NF-2S Base Unit’s A and
B Sub-Unit jacks, including the Sub-Unit supplied with the NF-2S. Do not connect more than three
Sub-Units at one time.
• Do not connect headsets directly to the Distributor.

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6. NOMENCLATURE
6.1. NF-2S
6.1.1. Base Unit
[Front]
1. Power indicator (green)
Lights when the Power switch (5) is turned
ON, and extinguishes when turned OFF.
2. Signal indicators (green)
These indicators light up whenever audio is
detected from a Sub-Unit connected to Sub-
Unit jacks A (8), B (7), or headset.
3. Mute buttons
Used to mute the Sub-Unit microphones
connected to the Sub-Unit jacks A (8), B (7),
or headset microphones. Pressing a button
mutes the microphone, and no voice output is
transmitted from the opposite speaker.
4. Volume controls
Used to adjust the output volumes of Sub-
Units connected to the Sub-Unit jacks A (8)
or B (7), or headset. Rotate clockwise to
increase the volume and counter-clockwise
to decrease.
12 3 4 2 3 4

8
[Rear]
5. Power switch
Press to turn ON the power to the unit, and
press again to turn the power OFF.
6. Socket for AC adapter
Connect the designated AC adapter here.
7. Sub-Unit jack B
Connect the Sub-Units using the dedicated
cable.
When using the NF-CS1, use the dedicated
cable to connect the Distributor to this jack.
Never connect headsets directly to this
jack. Failure to observe this caution
could result in a loud noise from the
headset that could cause momentary
hearing loss.
CAUTION
8. Sub-Unit jack A
Connect the Sub-Units using the dedicated
cable.
When using the NF-CS1, use the dedicated
cable to connect the Distributor to this jack.
Tip
Commercially available headsets can also
be connected to this jack (provided they
use a ø3.5, 4-pole mini plug connector that
conforms with CTIA standards.)
When connecting headsets to this jack,
rst switch ON switch 1 of the DIP
switch (10). Also, use only headsets that
comply with CTIA standards. Failure to
observe these cautions could result in a
loud noise from the headset that could
cause momentary hearing loss.
CAUTION
9. External control input terminal
Push-type terminal block (2P)
Open circuit voltage: 9 V DC or less
Short circuit current: 5 mA or less
Connect a no-voltage ‘Make’ contact (push
button switch, etc.) to enable the Mute function.
While the circuit is ‘made,’ the microphone of
the Sub-Unit or headset connected to Sub-
Unit jack A (8) will be muted.
5 6 7 8
9 10

9
10. DIP switch
This switch allows selection of the device
being connected to Sub-Unit jack A (8), and
enables/disables the low-cut lter of the
Sub-Unit speaker.
• Switch 1 [ ]
Selects type of device being connected to
Sub-Unit jack A (8).
Note
Be sure the Power is turned OFF before
performing this operation.
ON: Headset
OFF: Sub-Unit or NF-CS1 Distributor (factory
default)
• Switch 2 [LOW CUT]
This switch enables or disables the low-
cut lter used to suppress low-to-midrange
sound output.
Turn ON to suppress sound output if
concerned about privacy or if the Sub-Unit is
installed in a location where sound is likely
to be mufed, such as near a wall or desk.
ON: Low-cut lter enabled
OFF: Low-cut lter disabled (factory default)
[Explanation of Unit Symbols]
Indication Position Meaning
Front panel The LED next to this symbol is the power indicator, which shows the
system’s operating status. Whether the system is in operation or standby
mode is indicated by the LED being lit or extinguished.
Rear panel Indicates that the system is in operation.
Rear panel Indicates that the system is in standby mode.
Rear panel Shows the system’s power voltage (9 V DC).
Rear panel Shows the polarity of the AC adapter socket.
The center pin is positive and its surrounding surface is negative.

10
[Bottom]
1. Speaker
Outputs the voice signal picked up by the
other paired Sub-Unit.
2. Microphone
Picks up voice sounds, which are then output
from the other paired Sub-Unit.
3. Sub-Unit mounting magnet
Used to attach the Sub-Unit to a steel plate
or when mounting the two Sub-Units to both
sides of a partition.
4. Rubber feet
Reduce the transmission of vibration to the
Sub-Unit. Do not remove these rubber feet.
5. Cable connector
Connects to the Base Unit or Distributor by
way of the dedicated cable.
6.1.2. Sub-Unit
[Front] [Rear]
3
4
4
5
1
2
3
4
4

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6.2. NF-CS1
6.2.1. Distributor
[Left side] [Front] [Right side]
1 1 1
1. I/O connector
Use the dedicated cable to connect the NF-
2S Base Unit’s Sub-Unit jack, the Sub-Unit’s
Cable connector or another Distributor’s I/O
connector.
6.2.2. Sub-Unit
These are identical to the Sub-Units that come with the NF-2S. (See "Sub-Unit" on p. 10.)
Tip
Although their labels may appear slightly different from those of the NF-2S’s Sub-Units, operation and
performance are exactly the same.

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7. CONNECTIONS
7.1. Basic System Configuration
The basic system conguration of NF-2S is as follows.
1. AC adapter connection
Connect the Base Unit to an AC outlet using
the supplied AC adapter and power cord*.
Be sure to use only the designated AC
adapter and power cord*. Using any other
than the designated components could
result in damage or re.
CAUTION
* No AC adapter and power cord are supplied
with the version W. For usable AC adapter
and power cord, consult your nearest TOA
dealer.
2. Sub-Unit connection
Connect Sub-Units to these jacks using
the supplied dedicated cables (2 m or 6.56
ft). If the cables are not long enough for
connection, use the optional YR-NF5S 5m
Extension cable (5 m or 16.4 ft).
Sub-Unit (bottom)
Base Unit (rear)
Sub-Unit (bottom)
Dedicated cables
(accessories)
To AC mains
Power cord*
(accessory)
AC adapter*
(accessory)
1
2

13
Base Unit (rear)
Switch 1 of the DIP switch
1
2
7.2. Connection of Commercially Available Headsets
When using commercially available headsets, connect only to Sub-Unit jack A and turn ON switch 1
of the DIP switch.
Please note that the Sub-Unit or NF-CS1 Distributor cannot be connected to Sub-Unit jack A while
switch 1 is ON.
Connections for the AC adapter and Sub-Unit jack B are identical to those shown in the "Basic
System Conguration" on p. 12.
[Compatible Headsets]
Connector specications:
• Compliant with CTIA Standards
• ø3.5 mm, 4-pole mini plug
1. Headset connection
Plug the connector of a commercially
available headset into Sub-Unit jack A.
Note
Headsets cannot be connected to Sub-Unit
jack B or the NF-CS1 Distributor.
2. DIP switch settings
Set switch 1 of the DIP switch to ON.

14
7.3. Connection of Mute Switch
Any commercially available push-button switch can be connected to the external control input
terminal.
Note
If the external mute function is not to be used, do not connect any switch to the external control input
terminal.
Base Unit (rear)
1
Push-button switch or the like
1. External mute input device connection
Connect a commercially available push-
button switch or the like.
Compatible wires sizes:
Solid wire: ø0.41 mm – 0.64 mm
(AWG26 – AWG22)
Stranded wire: 0.13 mm2 – 0.32 mm2
(AWG26 – AWG22)
7.3.1. Connection
Step 1. Strip back the wire insulation by about 10 mm.
Step 2. While holding open the terminal clamp with a
screwdriver, insert the wire then let go of the terminal
clamp to connect.
Step 3. Lightly pull on the wires to ensure that they don’t pull out.
To prevent the cores of stranded wires from loosening over time, attach insulated crimp pin terminals
on the ends of the wires.
Recommended ferrule terminals for signal cables
(made by DINKLE ENTERPRISE)
Model Number abl1l2
DN00308D 1.9 mm 0.8 mm 12 mm 8 mm
DN00508D 2.6 mm 1 mm 14 mm 8 mm
Stripping length:
About 10 mm
Terminal clamp
Insulation sleeve
Contact area
a
b
l2
l1

15
7.4. Sub-Unit Expansion
Up to two NF-CS1 Distributor can be connected to each of Sub-Unit jack A or B, for a total of 3 Sub-
Units per jack.
Note
To prevent howling, ensure at least 1 m distance between connected Sub-Units.
Connection Example:
One Distributor (and two Sub-Units) connected to Sub-Unit jack A and two Distributors (and three
Sub-Units) connected to Sub-Unit jack B. (Use of one NF-2S and three NF-CS1s.)
1 m or more
1 m or more 1 m or more
Distributor
Distributor
Distributor
Base Unit (rear) Sub-Unit Sub-Unit
Sub-UnitSub-Unit Sub-Unit
Up to 2 Distributors (3 Sub-Units)
Note
The order of connected Sub-Units (whether those included with the original
NF-2S or the NF-CS1) doesn’t matter.

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8. INSTALLATION
8.1. Base Unit Installation
When placing the Base Unit on a desk or similar surface, attach the supplied rubber feet to the
circular indents in the Base Unit’s bottom surface.
8.2. Sub-Unit Installation
8.2.1. Mounting on both sides of a partition
Attach the Sub-Units to both sides of a partition by sandwiching it between the magnets built into
their rear panels.
Note
The maximum thickness of the partition is approximately 10 mm (0.39"). If the partition exceeds
this thickness, use the pair of supplied metal plates for attachment. (See the next page for more
information on the metal plates.)
Notes
• Ensure that the Sub-Units are positioned at least
15 cm (5.91") away from the nearest edge of the
mounting surface when mounting. If the distance to
the edge is less than 15 cm (5.91"), howling could
result.
15 cm (5.91")
or more 15 cm (5.91") or more
15 cm (5.91") or more
15 cm (5.91") or more
Partition thickness: 10 mm (0.39") or less
Sandwich the partition.
Sub-Unit
Sub-Unit
Magnets (2 places)
• Install the Sub-Units so that the top and bottom of each unit are facing in the same direction on
both sides of the partition. Due to the polarity of the magnets, they cannot be installed in any other
orientation.

17
8.2.2. Use of the Metal Plates
Use the supplied metal plates to mount the Sub-Units in the following cases:
• When the partition onto which the Sub-Units are to be mounted is over 10 mm (0.39") in thickness.
• When the two Sub-Units are not to be magnetically attached to each other.
• When the Sub-Units require a stronger mounting.
Note
When using the metal plates, do not attach the rear
panels of two Sub-Units to each other. If attached,
howling will result even at low volumes.
Step 1. Be sure to remove dust, oil and grime, etc.
from the mounting surface.
Note
Wipe clean. If dirt or grime is not sufciently
removed, the Sub-Unit’s magnetic strength
could be severely weakened, potentially
causing the Sub-Unit to fall.
Step 2. Peel off the backing paper on the back
surface of the metal plate and afx the metal
plate to the intended mounting position.
Note
Securely attach the metal plate by pressing
rmly on it. Failure to rmly press on the
metal plate when attaching it to the partition
could result in a weak initial attachment,
leading to the metal plate peeling off when
the Sub-Unit is removed or the mounted
Sub-Unit falling.
Step 3. Align the metal plate with the Sub-Unit’s
magnet and mount the Sub-Unit to the
partition.
Notes
• When mounting the Sub-Units to the partition by
magnetically sandwiching it between them, ensure
that they are positioned at least 15 cm (5.91") away
from the nearest edge of the mounting surface. If
the distance to the edge is less than 15 cm (5.91"),
howling could be produced.
• When mounting the Sub-Units to a partition
without aligning their rear panels with each other,
if the distance between the Sub-Units is too short,
howling could result. In such cases, either lower
the volume or change the mounting locations of the
Sub-Units.
Partition, panel, etc.
15 cm (5.91")
or more 15 cm (5.91") or more
15 cm (5.91") or more
15 cm (5.91") or more
Keep apart.
Sub-Unit
Sub-Unit
Metal plate (accessory)
Metal plate
(accessory)
To mounting position
Sub-Unit
Magnets (2 places)
2
3

18
Sub-Unit
Partition
Zip tie
Mounting base
After securing the cables, cut the
zip ties at the base.
8.2.3. For cable arrangement
Cables can be neatly arranged during installation by using the supplied mounting bases and zip ties.
9. CHANGING AUDIO OUTPUT SETTINGS
Audio output settings can be changed by switching ON switch 2 of the DIP switch. (Factory default:
OFF)
[Reducing sound propagation]
The range in which the Sub-Unit speaker can be heard can be reduced by suppressing the low-to-
midrange sound output.
[If voice output sounds mufed and unclear, depending on installation conditions]
If the Sub-Unit is installed near a wall or desk, voice output may seem mufed.
Suppressing the low-to-midrange sound output may make it easier to hear the voice output.
ON
OFF
Switch 2 of the DIP switch
Base Unit (rear)

19
10. VOLUME ADJUSTMENT
Adjust the output volume of Sub-Units to an appropriate level using their corresponding volume
knobs located on the front panel of the Base Unit.
11. DOWNLOAD SITE
The Sub-Unit Setup Guide and templates for Speak Here labels can be conveniently downloaded
from the following URL:
https://www.toa-products.com/international/detail.php?h=NF-2S
12. REGARDING OPEN SOURCE SOFTWARE
The NF-2S utilizes software based on the Open Source Software license. If more detailed information
regarding the Open Source Software employed by the NF-2S is required, please download it from the
above download site. Also, no information will be provided about the actual contents of the source
code.

20
13. SPECIFICATIONS
13.1. NF-2S
Power Source 100 – 240 V AC, 50/60 Hz (use of the supplied AC adapter)
Rated Output 1.7 W
Current Consumption 0.2 A
Signal to Noise Ratio 73 dB or more (volume: min.)
70 dB or more (volume: max.)
Mic Input –30 dB*1, ø3.5 mm mini jack (4P), phantom power supply
Speaker Output 16 Ω, ø3.5 mm mini jack (4P)
Control Input External mute input: No-voltage make contact inputs,
open voltage: 9 V DC or less
short-circuit current: 5 mA or less,
push-in terminal block (2 pins)
Indicators Power indicator LED, Signal indicator LED
Operating Temperature 0 to 40 °C (32 to 104 °F)
Operating Humidity 85%RH or less (no condensation)
Finish Base Unit:
Case: ABS resin, white, paint
Panel: ABS resin, black, paint
Sub-Unit: ABS resin, white, paint
Dimensions Base Unit: 127 (w) x 30 (h) x 137 (d) mm (5" x 1.18" x 5.39")
Sub-Unit: 60 (w) x 60 (h) x 22.5 (d) mm (2.36" x 2.36" x 0.89")
Weight Base Unit: 225 g (0.5 lb)
Sub-Unit: 65 g (0.14 lb) (per piece)
*1 0 dB = 1 V
Note: The design and specications are subject to change without notice for improvement.
• Accessories
AC adapter*2 ................................................................... 1
Power cord*2 (1.8 m or 5.91 ft) ....................................... 1
Dedicated cable (4 pins, 2 m or 6.56 ft) ......................... 2
Metal plate ..................................................................... 2
Rubber foot for Base Unit .............................................. 4
Mounting base ................................................................ 4
Zip tie .............................................................................. 4
*2 No AC adapter and power cord are supplied with the version W. For usable AC adapter and power
cord, consult your nearest TOA dealer.
• Optional products
5m Extension cable: YR-NF5S