Toa MW-41BT User manual

OPERATING INSTRUCTIONS
AUDIO INTERFACE WITH USB AND BLUETOOTH
MW-41BT
Thank you for purchasing TOA's Audio Interface with USB and Bluetooth.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
1. IMPORTANT SAFETY INSTRUCTIONS ...... 2
TABLE OF CONTENTS
2. GENERAL DESCRIPTION ........................... 5
3. FEATURES ................................................... 5
4. NOMENCLATURES AND FUNCTIONS ....... 5
5. CONNECTIONS ......................................... 7
6. INSTALLATION ......................................... 7
7. DIMENSIONAL DIAGRAM ........................ 8
8. SPECIFICATIONS ..................................... 8
TOA Canada Corporation

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
•Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatuses (including
amplifiers) that produce heat.
•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been
dropped.
INSTRUCTIONS ESSENTIELLES POUR LA SÉCURITÉ
• Lire ces instructions.
• Conserver ces instructions pour référence ultérieure.
• Respecter tous les avertissements.
• Suivre toutes les instructions.
• Ne pas utiliser cet appareil à proximité d'eau.
• Nettoyer uniquement à l'aide d'un chiffon sec.
• Ne pas obstruer les orifices de ventilation. Installer conformément aux instructions du fabricant.
•Ne pas installer à proximité de sources de chaleur telles que des radiateurs, des registres thermiques, des
chaudières ou d'autres appareils (notamment des amplificateurs) produisant de la chaleur.
•Protéger le cordon d'alimentation pour éviter qu'il ne soit piétiné ou pincé, notamment au niveau des fiches,
des prises de courant ou de son point de sortie de l'appareil.
• Utiliser uniquement les accessoires spécifiés par le fabricant.
•Débrancher cet appareil pendant les orages ainsi que lorsqu'il reste inutilisé pendant une période prolongée.
• La maintenance de l'appareil doit être confiée à un technicien après-vente qualifié. Une maintenance s'avère
nécessaire si l'appareil est endommagé (au niveau du cordon d'alimentation ou de la fiche), a été mouillé
par un liquide, un objet est tombé à l'intérieur, s'il a été exposé à la pluie ou l'humidité, s'il ne fonctionne pas
normalement ou s'il est tombé.
2
IMPORTANT SAFETY INSTRUCTIONS
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.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.

When Installing the Unit
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 fire or electric shock.
Use the unit only with the voltage specified on the unit. Using a voltage higher than that which is specified
may result in fire or electric shock.
Do not cut, kink, or 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 fire or electric shock.
Avoid installing or mounting the unit in unstable locations, such as on a rickety table or a slanted surface.
Doing so may result in the unit falling down and causing personal injury and/or property damage.
The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shall be easily
accessible.
When the Unit is in Use
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 fire 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, detached, etc.)
· If it is malfunctioning (no tone sounds.)
To prevent a fire or electric shock, never open nor remove the unit case as there are high voltage components
inside the unit. Refer all servicing to your nearest TOA dealer.
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 fire or electric shock.
Do not insert nor drop metallic objects or flammable materials in the ventilation slots of the unit's cover, as
this may result in fire or electric shock.
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
WARNING
The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operation and maintenance (servicing) instruction in the literature accompanying the
appliance.
Le point d'exclamation à l'intérieur d'un triangle équilatéral avertit l'utilisateur de l'existence
d'instructions d'utilisation et d'entretien (réparation) dans la documentation fournie avec l'appareil.
3
When Installing the Unit
• 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 fire 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 fire or electric shock.
When removing the power cord, be sure to hold its plug to pull.
•Avoid installing the unit in humid or dusty locations, in locations exposed to direct sunlight, near heaters,
or in locations generating dirty smoke or steam as doing so may result in fire or electric shock.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION

When the Unit is in Use
•Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury
and/or property damage. In addition, the object itself may fall off and cause injury and/or damage.
•Make sure that the amplifier 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.
•Do not operate the unit for an extended period of time with the sound distorting. This is an indication of a
malfunction, which in turn can cause heat to generate and result in a fire.
•If dust accumulates on the power supply plug or in the wall AC outlet, a fire may result. Clean it periodically.
In addition, insert the plug in the wall outlet securely.
•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 so may cause a fire or electric shock.
Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
Note: This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following
two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause undesired operation of the
device.
Cet appareil est conforme aux CNR exempts de licence d'Industrie Canada. Son fonctionnement est soumis
aux deux conditions suivantes:
(1) Ce dispositif ne peut causer des interférences; et
(2) Ce dispositif doit accepter toute interférence, y compris les interférences qui peuvent causer un mauvais
fonctionnement de l'appareil.
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference 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 off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer to an experienced radio/TV technician for help.
The lighting flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user
to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
L'éclair accompagné d'un symbole représentant une pointe de flèche à l'intérieur d'un triangle
équilatéral avertit l'utilisateur de la présence d'une "tension dangereuse" à l'intérieur de l'enceinte
du téléviseur, dont la magnitude peut être suffisante pour constituer un risque de choc électrique
pour les personnes.
L'appareil ne doit pas être exposé aux éclaboussures ou écoulements et tous objets remplis de liquide, tels que
vases, ne doivent pas être sur l’appareil.
ATTENTION
4

2. GENERAL DESCRIPTION
3. FEATURES
5
Bluetooth name: MW-41BT
Pairing password: 4141
Note: If multiple interfaces are installed in the same location, you can modify the name of MW-41BT on the
audio playback device to distinguish it after the Bluetooth pairing is successful.
[Front Panel]
4. NOMENCLATURES AND FUNCTIONS
10
14
1 4 5 6 7 8 9
11
15 12 13
32
MW-41BT is TOA's second generation of audio input panels. It is equipped with Microphone, Aux (3.5mm),
USB and Bluetooth inputs, and one Mono balanced output. The in-wall design and elegant appearance
make it ideal for saving space and integration to various facilities.
The microphone input has the highest priority over the other inputs. Any active input will be ducked by 20dB
once a microphone signal is detected.
The panel fits in a standard 2-Gang Electrical box (not included), and it requires a power supply (included).
• Microphone and line level inputs • Input Selection Button
• 24V Phantom Power on the Mic input • Volume Control
• USB input (compatible with MP3 and WAV) • Priority on the Mic input
• Bluetooth®input • AC Adapter included
• Balanced line output • 2-Gang Electrical box required (not included)
1. Microphone Input Terminal
-60 dBV, 600 Ω, electronically balanced, female XLR
type connector.
Note:
The microphone has the highest priority.
When the
microphone is turned on and the system
detects a microphone signal, the sound of the source
being
used will be reduced by 20dB.
When the microphone
is turned off, its volume is
automatically restored.
2. Microphone Volume Control
Adjust the microphone volume level.
Note: When the microphone is not in use, turn down
the volume control to reduce the noise.
3. Phantom Power Switch
Turns ON or OFF depending on whether or not the
microphone connected to the MIC input requires
phantom power.
ON: Supplies phantom power (24 V DC) to the
microphone.
OFF: Turns off the phantom power supply.
4. AUX Input Terminal
-10 dBV, 10 kΩ, unbalanced, stereo 3.5 mm (1/8")
mini-jack.
5. Power Indicator
Lights blue when power is switched on.

5
6
16. DC Power Input And Audio Output Connector
RJ45 connector.
• DC Power Input (Pin7 24V+, Pin8 24V-)
Connects to the
accessory AC adapter.
• Audio Output (Pin1 Hot, Pin2 Cold, Pin3 Earth)
0 dBV, 10 kΩ, electronically balanced, connect to
an amplifier.
17. Mounting holes
Use the accessory screws to install the interface
to the 2 gang box. (Refer to p.7.)
[Rear Panel]
16 17
6. Power Switch
Press ON/OFF to turn on the power.
Press again to turn off the power.
7. Input Channel Selection Button
Press the Input button to select the input channel,
and ensure input channel indicator (No.14) is on.
8. Volume Down Button
The volume decreases by one level when short press,
and decreases quickly when long press.
When the volume is reduced to the minimum, the
system will prompt you with a beep sound.
9. Volume Up Button
The volume increases by one level when short press,
and increases quickly when long press.
When the volume is increased to the maximum, the
system will prompt you with a beep sound.
10. USB Card Input
Socket for USB Input.
Audio formats: MP3, WAV.
Format: FAT16, FAT32, Max. 32GB.
11. Play/Pause
Press this button to toggle between Play and Pause.
Note: If Bluetooth or USB input is selected, this
button will play and pause the music source. If AUX
input is selected, this button will mute and unmute
the music source.
12. Skip to Last Track
Press this button to skip to previous track.
Note: Operates while Bluetooth/USB is active.
13. Skip to Next Track
Press this button to skip to next track.
Note: Operates while Bluetooth/USB is active.
14. Input Channel Indicator
Lights blue when the input channel is selected.
15. IR Receiver
Signal receiver from accessory remote control.

7
5. CONNECTIONS
6. INSTALLATION
1. Embed 2 gang box on the wall first and tighten it with screws.
2. Connect CAT5-STP cable, then install the panel into the 2 gang box and tighten it with accessory screws.
3. First connect the power amplifier and the AC adapter, and then connect the AC adapter to the AC power
source.
USB Drive
Example of external equipment connections
Microphone
Bluetooth
Play
Device
AC Adapter (accessory)
To AC Power Source
Power Amplifier
or
Speaker
CAT5 STP
PIN1-3
PIN7-8
RJ45 Conversion Socket (accessory)
Pin1 Pin2 Pin3 Pin4 Pin5 Pin6 Pin7 Pin8
N.C. N.C. N.C.
AUDIO OUT(H) DC IN 24V(+) DC IN 24V(-)AUDIO OUT(C) AUDIO OUT(E)
Power ON/OFF Sequence
Power on
Audio Interface Audio InterfaceSource Source Power Amplifier
Power off
NOTES:
For high-power systems, power on/off sequence is very important. Failure to follow the sequence is likely to
damage the equipment.
Power Amplifier

202109
8. SPECIFICATIONS
Power Source 100-240V AC 50/60Hz
AUX input : -10 dBV, 10 kΩ,unbalanced, stereo 3.5 mm(1/8") mini-jack
S/N Ratio > 90dB (A weighted)
Operating Temperature 0°C to +40°C (32 °F to 104 °F)
Operating Humidity 90% RH or less (no condensation)
Finish Panel: Aluminum, Sandblasting, Silver
Dimensions 120 (W) x 120 (H) x 40.2 (D) mm (4.72" x 4.72" x 1.58")
Weight 0.2 kg (0.44 lbs)
Accessory AC Power adapter ...1, Remote control ...1, Box mounting screw (6-32UNC) ...4
Frequency Response 20 - 20,000 Hz, ±3 dB
Total Harmonic Distortion < 0.1%
+24 VDC, switchable, MIC inputPhantom Power
Indicators Power (Blue) x 1, MIC (Blue) x 1, AUX (Blue) x 1, USB (Blue) x 1, Bluetooth (Blue) x 1
Audio Input MIC input : -60 dBV, 2.2 kΩ, electronic balanced, female XLR Connector
Audio Output 0 dBV, 10 kΩ, electronic balanced,
RJ45 connector
Power Consumption 3W
Format: FAT16, FAT32, Max. 32GB
USB input : Audio formats: MP3, WAV
Bluetooth input : Ver. 5.0, Max. 10m
Decorative sheet: Acrylic, Black
RJ45 Conversion socket ...1
Note : Design and specification are subject to change without prior notice for improvement.
Units : mm [inches]
7. DIMENSIONAL DIAGRAM
120 [4.72"]
120 [4.72"] 28.4 [1.12"]
TOA Canada Corporation
www.toacanada.com