MJ ACOUSTICS Reference 200 SR black ash, Reference 802-FF SR black ash, Reference 210 SR black ash, Reference 100 MK4 SR walnut, Reference 400 SR black ash 836b33c75da12d7b17fda7f04a31b91e.pdf

Smart Remote

Introduction

MJ Acoustics Smart Remote (sr) is an app for tablet or smartphone. sr employs wireless
communication technology for use with those subwoofers in the MJ Acoustics range that have sr enabled

hardware. No requirement for router connection but with total autonomous communication between subwoofer
and smart device is achieved using Bluetooth 4 data transmission support.
The app is currently available for Android, while an iOS version is under
development. All app functions and menu contents will be the same for both,

Android and iOS operating systems.

What can it do?

sr offers communicate with one or more MJ Sub-Bass Systems

bidirectionally, enabling the app to display the exact settings the subwoofer is

using. Changes made via the smart device screen are employed instantly and
can be made in real-time whilst listening to your choice of material. A
fantastic way to set up and fine tune your Sub-Bass System for the purest of
HiFi integration.

The full compliment of features remains available to the user along with a
number of key additional features.

Each subwoofer can be given a name.

Each subwoofer can be placed in a Group

Each subwoofer can be muted, either singularly or in Groups.

Each Group can be adjusted for gains simultaneously.

Real Time Analyser (RTA) provided to show the effects of the frequency spectrum.

Real Time Analyser Sensitivity and Frequency Range settings.

With these additional features and the already industry leading feature set, you are assured of the purest integration
and the ability to achieve this from your listening position.

An MJ Subwoofer is a Sub-Bass System like no other!

sr App Installation

Download the Android version of the APP (MJSmartRemote-0.1.6.apk) from the Google Play Store.

From the Google Play Store the app will automatically install in just the same way as all other app’s.

If you have downloaded a Beta release of the app from the MJ website then follow these simple instructions.

Connect your device to the computer using USB lead and navigate to the “downloads” folder on your device. Inside
this folder locate the MJ Smart Remote app and tap on the name. The option to install will appear which you need
to accept. On some devices there is a need to allow permission to install apps when manually loaded and if this is
required then the screen instructions on your device will explain the procedure. Follow these additional instructions
as required and your app will be ready for you to run.

You will need to uninstall your Beta release version before installing the latest release from the Google Play store.

sr Paring The MJ Subwoofer

In order for the bidirectional communication to begin the app interrogates the Bluetooth Paired list on the device to
see if there are any MJ Acoustics Subwoofers paired. It is therefore important that you first pair your device with
your Subwoofer. If you have multiple devices you can pair the subwoofers to each device in readiness for the app to
initiate a communication channel.

This can be accomplished simply by loading the Bluetooth section of your devices settings and scan for
broadcasting Bluetooth connections. You will need to make sure that your subwoofer has been switched on prior to
running a scan. Your subwoofer will show in the “available to pair” list and touching this item will automatically
pair the subwoofer with your device. Once the subwoofer has been paired your Smart Remote app will be ready for
connection. You can pair multiple MJ Subwoofers.

Note: Pairing is not the same as connecting. A pairing is a way of making sure that both your device and your
subwoofer are able and ready to connect. Pairing will only need to be completed once.

Smart Remote

sr App Loading

Tap the icon on the screen to start up the loading process. The “loading” screen
will display until the app has fully loaded. This app is quite special and uses
many of the onboard peripherals that your device has such as the screen, touch
sensor and the built-in microphone for the RTA function to calculate the
frequency display.

sr App Default Screen View

The app will load into the default screen view showing the layout and ready to
connect grey bar (“Press Here to Connect”).

Carousel Menu

Swipe Left or

Right

Title Area

Main Display Area

Memory Pre-Set
& Multiple Sub-

woofer Group

Controls

RTA Display Area

(note the hidden
menu activation

button)

2nd Carousel Menu

RTA settings menu

RTA display example

Group

Selection area

Tap button

marked Group

Group Selection Menu

Hidden

RTA Menu

Smart Remote

Connection Activation

Tap here to
Start RTA

Once the group and position name is set for the MJ Subwoofer, it is ready to be controlled by the sr APP.

Note. It is recommended to extend the Screen timeout on the tablet or phone in use.

Setting the Subwoofer Position Name

Now that you have Paired your subwoofer with your device, loaded the app ready for connection, we suggest that
you give your subwoofer a position name from the pre defined options.

By default the subwoofer position name is stored as P-1 which refers to a position location. The actual subwoofer
type and model will be displayed in the lower part of the main screen to show which model type is active. If you

have a single sr enabled subwoofer then there is no need for you to alter this name. However if there is more
than one subwoofer then it is helpful to have each one set with a different name. This can be accomplished from

within the menu on the subwoofer or from inside the APP as follows. Navigate using the Select button on the

default carousel menu until you reach the menu item marked (position). Then using the up and down arrows
choose between the following options:-

Position 1 (Default/Factory for all new subwoofers)

Position Left

Position Centre

Position Right

, , , , , (Position 1 to Position 7)

Note. Position is a human readable name to identify a subwoofer within a group. After making this position change
please close and reload the app and then re-connect. The name will not take effect until the next restart of the Smart
Remote app.

Smart Remote

Setting the Subwoofer Group

The group feature allows sr enable MJ Subwoofers to be controlled in groups. The sr app will automatically
attempt to open group one. Up to nine groups are supported with up to seven MJ Subwoofers in each group
depending upon the capability of the tablet or smartphone in use. By default each subwoofer is placed in group 1
and the group number can be selected as 1 through 9. If a group number is changed then the sr app will need
restarting for the changes to be recognised. It applies to multiple subwoofer systems and enables the grouping of
subwoofers for simultaneous adjustments for the purest of HiFi integration.

Navigate using the Select button on the default carousel menu until you reach the setting marked . Then using
the up and down arrows, choose between the following options:-

Group 1 (Default/Factory for all new subwoofers)

Group 2

Group 3 (ETC up to Group 9)

Note. The default/factory settings are and . If you have more than one MJ Subwoofer, it is
recommended that they have different Position names.

Usage

Connecting

Touch the grey connect bar and the sr app will initiate contact with

the MJ Subwoofers in the paired list.

A “What’s happening” window
will pop up that shows the
progress as the connections are made.

sr examines each subwoofer found and will open those found in group1.
The positional names of the subwoofers will be displayed in place of the
connect bar. With the first subwoofer in the list (left side of bar) in focus.
Focus is the term we use to refer to the subwoofer that has it’s settings
displayed in the main display area.

A digit “1” will be displayed in the group selection button provided at least
one subwoofer was found in group1.

If there are no subwoofers in group 1 then no groups are opened and a
hyphen will be displayed on the
group button in the group controls
area. (see changing groups)

Note. Should you try and connect to subwoofers that are not switched on
then the screen above will show a grey box listing down the paired
subwoofers that could have been connected suggesting that you “check
power to your device(s) meaning turn on the subwoofers. Tap off the grey
box and reconnect after powering up your subwoofers. If one or more are
switched on then connection to these within the group will be made.

After communications link has been established the sr app will load up
the screen as shown with display area mirroring the display on the
subwoofer in focus. The name of the subwoofer position will also be
highlighted in green.

Note. A green ring will show around a pre-set memory position button if
one has been set and the subwoofer in focus is active on that memory.

(please see the subwoofer manual for more details on memory pre-sets)

Smart Remote

Display area

The display area shows a replication of the display on the

subwoofer in focus and the two sets of numbers have exactly the

same meaning as explained in the subwoofer manual. (refer to
subwoofer manual)

Control area

The control area, in its default state, represents the data button on
the subwoofer panel. Pressing Select cycles the focussed
subwoofer through its menu items. The up or down arrows can
then be used to adjust the related value. The currently selected
menu focus is displayed above the Select button.

Swiping the control area to the left or right brings the Sr version
of the rotary controls on the subwoofer panel. Each pair of buttons
represents a single rotary of the four: H-L(high level gain), Hro
(high level roll off), LFE(low level gain) and Lro(low level roll
off). These controls have exactly the same function as the rotaries
on the subwoofer panel. (please see the subwoofer manual for more details)

To place the focussed subwoofer in sleep mode press the button found in the title area (top of screen). The
button will change to a red colour to show that the focussed subwoofer is in sleep mode. To take the focussed

subwoofer out of sleep then press the button which will change back to blue. The Subwoofer will become fully
active once a single click is heard from the onboard relay.

Group controls

The group controls are provided to enable the user control of all the subwoofers in the selected group

simultaneously. An example would be the recall of a pre-set memory setting for all subwoofers in the group. To
select a particular group, touch the square button that has the
current group number 1 displayed. This will open the group buttons
in the bottom area. You can then select the new group.

Smart Remote

Group controls cont’

To place a group of subwoofers in sleep mode press the button
found in the Group Controls area. The button will change to a red
colour to show that the group of subwoofers are in sleep mode. To

take the group of subwoofers out of sleep then press the button which will change back to blue. The
Subwoofers will become fully active once a click is heard from the onboard relays.

The group controls are provided to enable the user control of all the subwoofers in the selected group. This
becomes instrumental in fine tuning your audio system when multiple subwoofers in a group require their gains
raising or lowering at the same time by the exact amount. The SR app cleverly knows that there may be a
difference between gain settings on one subwoofer and another. So the group increase is handled keeping this

differential. On the left side of the Group controls you will see a button with & marked in red. By

pressing this button you can choose whether to increase group gains for all ’s or all ’s or both
simultaneously. It is really very useful for the set up of your multi-subwoofer system.

Note. Memory pre-sets are able to store settings into 4 locations as marked on the buttons in the Group Control
area. When a button is pressed and held down for more that 2 seconds the display will show, for example,
and the settings will be written to memory. A short press of the same button will recall the saved memory setting
showing in the main display area. (please see the subwoofer manual for more details on memory pre-sets)

Smart Remote

Real Time Analyser (RTA)

To assist with room correction and enable a better
understanding of the frequency dips

and peaks in a room Sr provides
you with an RTA .

This part of the app software has
been developed to turn your device
into a highly accurate instrument
making many thousands of
calculations every second.
Conversion of the audio signal data collected by the device’s on board microphone, are turned in to visual

representations and displayed in graph form. This type of instrument is very useful to see the effects of augmenting

the bass detail in your system. The response speed of the RTA display is limited only by the speed of your device.

An initial look across the Full 20Hz to 20kHz spectrum will give an indication of the acoustic properties of a room.
Touching the RTA display will freeze the screen for you to take a snapshot look at the frequency curve.

By placing the device in the listening position you can compare this visual display to that of other parts of the room.
If you select a white noise demonstration track your observations will reveal a great deal of information about your
audio system requirements. Fine tuning of the RTA settings can be made by accessing the hidden menu (hidden
RTA Menu button). Choices to set the frequency range and also the sensitivity are available. A fantastic feature that
will assist the purest of HiFi setups procedures.

Hidden

RTA Menu