background image

1

2

3

4

5

6

7

FADE

MUTING

ANALOG

VOLUME

SURROUND

CENTER

SUBWOOFER

DIGIT

AL

1

DIGIT

AL

2

SURROUND

MODE

OFF

RM-STHBA1A

DIMMER

DRC

— INP

UT —

— 

SPEAKER LEVEL

 —

1

2

Do not install the center unit onto a plywood or plasterboard wall; otherwise, it 
will fall and sustain damage.
When installing the center unit on the wall;

Be sure to have them installed on the wall by qualified personnel.
Care must be taken when selecting a location for installation on the wall. 
Injury to personnel or damage to equipment may result if the installed unit 
interfere with daily activities.
AC adaptor should not be hanging/put above of any other items. It is 
acceptable to place the AC adaptor on the flat floor only.
Recommended mounting surface: Wooden studs. If the mount is to be 
installed on any surface other than wooden studs, use suitable hardware 
(which is commercially available).

 Connecting external components 

You can connect analog components to the ANALOG terminal and digital 
components to the DIGITAL 1 and DIGITAL 2 terminals.

 Connecting the power cord

Connect the supplied AC adaptor to the DC IN jack on the center unit. Then 
connect the supplied AC power cord to the AC adaptor, and plug it in a wall 
outlet.

Plug in the power cord of the subwoofer to a wall outlet.

CAUTION

Disconnect the power cords before cleaning or moving the speakers.


 Using the core filter

Attach the provided core filter to the power cord and the external components 
cord to reduce interference.

1

  Release the stopper of the 

core filter.

2

  Run the cable through the core filter, and wind the cable 

firmly once inside the cutout of the core filter as shown in the 
illustration.

You can wind two external components cords together.

3

  Close the core filter until it clicks shut.

CAUTION

Do not damage the cord by applying excessive force 
when winding.

 Setting up the subwoofer

This System is equipped with a wireless subwoofer . When you use it for the 
first time, activate the wireless pairing.
Refer to the supplied information sheet—“Activate wireless pairing.”

NOTE

The wireless pairing is not canceled even after the AC plug has been pulled out.

*

G

etting started

DO NOT connect the power cord until all other connections have 
been made. 

 Prepare the Remote Control

When you use the remote control for the first time, pull out the insulation 
sheet.

If the range or effectiveness of the remote 
control decreases, replace the battery.

To Replace the Battery in the Remote Control

Insert the battery into the remote control by matching the polarities (+ and –) 
correctly.

1

  Pinch the side of the battery case.

2

  Pull out the battery case and insert 

the battery by matching the polarities.

NOTE

Store the battery in a place where children cannot reach. If a child accidentally 
swallows the battery, consult a doctor immediately.
To prevent the battery from overheating, cracking, or starting a fire:

 Do not recharge, short, disassemble or heat the battery, or dispose of it in a 
fire.
Do not leave the battery with other metallic materials.
Wrap the battery with tape and insulate when throwing away or saving it.

Do not poke the battery with tweezers or similar tools.
Dispose of the battery in the proper manner, according to federal, state, and 
local regulations.



Lithium coin battery
(product number: CR2025)

O

perations

Insulation sheet

 Speaker layout

Install the speakers on a flat and level surface to ensure the best sound quality.

The sound may be affected depending on the location in which you install 
them. To avoid such issues, change the location and orientation of the 
speakers.
Install the speakers leaving an appropriate distance between them.
If you install the speakers near the TV, color distortion may occur. To prevent 
this, turn off the TV’s main power or unplug it before installing the speakers. 
Wait at least 30 minutes before turning on the TV’s main power again. 
If the TV is still affected, move the speakers further away.

Typical installation

Installing on the wall

You can install the center unit  on the wall.

CAUTION 

The center unit weighs approximately 3.5 k

g

 (7.8lbs). Sufficient care must 

be taken when installing it on the wall to prevent any accidents caused by its 
falling off.
Use screws which are compatible with the strength and material of the pillar or 
wall to prevent the center unit from falling off.


Rear of the center unit

RCA pin plug cord 
(not supplied)

Analog 

component

Digital 

components

White

Red

Digital optical cord 
(not supplied)

A:  Minimum 6.5 mm
B: Maximum 

10 

mm

C: Maximum 

mm

D: 

φ 

4 mm (screw diameter)

Ex.: center unit

Wall

Stopper

DC power cord

External 

components 

cords*

Screw (not 
supplied)

Turning on/off the power

Press 

.

You can also use the power button on the front panel.

NOTE

A small amount of power is consumed even when the power is turned off 
(standby mode). During standby mode, the STANDBY lamp on the front panel 
lights up. Unplug the power cord from the AC outlet to turn the power off 
completely.
You can also turn on the System by pressing one of the input buttons (DIGITAL 
1, DIGITAL 2 or ANALOG).

Selecting the input source

Press one of the input buttons: DIGITAL 1, DIGITAL 2 or ANALOG.
D1

 (DIGITAL 1), 

D2

 (DIGITAL 2) or 

AN

 (ANALOG) appears on the display for 2 

seconds.

You can also use the input button on the front panel.

NOTE

The indicator lamp of the selected input source lights.

T

roubleshooting

Adjusting the volume

Press /– (0 to 40).

You can also use the volume buttons on the front panel.

CAUTION

Set the volume to the minimum level before starting any source. If the volume 
is set to a high level, the sudden blast of sound may damage your hearing and 
blow out the speakers.

Turning off the sound temporarily

Press FADE MUTING.

To restore the sound, press the button again or adjust the volume.

Changing the display brightness

Press DIMMER.

Each time you press the button, the LED brightness changes as follows:
normal 

\

 dim 

\

 off

Making sound clearer (Only for Dolby DIGITAL 
and DTS)

You can enjoy low level recorded sound clearly even at a low volume 
level—Dynamic Range Compression.

Press DRC.

Each time you press the button, the sound is enhanced the effect as follows:
OF(off) 

\

 MD (middle) 

\

 MX (maximum)

1

 

 (power) button and STANDBY lamp

Turns on/off the System.

STANDBY lamp lights up while the System is turned off.

2

  Input button and input source indicator lamps

Selects an input source: “DIGITAL 1,” “DIGITAL 2” or “ANALOG.”

The indicator lamp for the selected input source lights up.

3

  Surround button and surround indicator lamps

Selects a surround mode: “SURROUND 1,” “SURROUND 2” or SURROUND 
OFF.

The indicator lamp for the selected surround mode lights. 
The DOLBY PROLOGIC II lamp lights up when:

surround is activated with an ANALOG input source selected.
surround is activated and a DIGITAL input source with 2 channel 
audio format.



4

 Remote sensor

Receives the signal from the remote control.

5

  Digital signal format lamps

Shows the digital signal format of the incoming signal when “DIGITAL 1” 
or “DIGITAL 2” is selected as the input source. Each lamp lights when:

– DOLBY DIGITAL:

a Dolby Digital signal comes in.

– DTS:

a DTS signal comes in.

– PCM:

a Linear PCM signal comes in.

6

 Display

Shows the volume level.

7

 Volume buttons

Adjusts the volume within the range of 0 to 40.

If you have a problem with this System, check this list for a possible solution 
before calling for service.

POWER

Power does not come on.

The power cord is not inserted securely. Plug it in securely.

REMOTE CONTROL

The remote control does not work.

The battery is exhausted. Replace the battery.
Sunlight is shining directly on the remote sensor. Hide the remote sensor 
from direct sunlight.
The path between the remote control and the remote sensor on the front 
panel is blocked.
Point the remote control at the remote sensor on the front panel.
Signals cannot reach the remote sensor. Move closer to the unit.
Pull out the insulation sheet.

SOUND

Sounds are sometimes interrupted.

Radio wave connections may be interrupted. Change the location and 
orientation of the speakers.

No sound from speakers.

The wireless connections have not been activated correctly. Check the 
connection.
The sound has been turned off temporarily. Press FADE MUTING on the 
remote control or adjust the volume by pressing /–.

Radio wave reflections

The System is connected directly by radio waves which are reflected by 
walls, furniture and buildings. If the System cannot receive the waves 
properly, move the System to obtain better reception.
Radio wave reception may also be interrupted by people moving between 
the units.

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 Basic operation

 

Buttons and lamps on the front panel

 Adjusting the output level of the 

speakers

You can adjust the output level within the range of –6 dB to +6 dB.

Press SPK LEVEL +/– for the corresponding speaker.

– SUBWOOFER:

Adjusts the output level of the subwoofer.

– CENTER:

Adjusts the output level of the center speakers.

– SURROUND:

Adjusts the output level of the front surround speakers.

 Using the surround mode

You can listen to a more realistic sound than stereo sound using surround.
Available surround modes are as follows:

– SURROUND 1: Suitable for the reproduction of multi-channel sources. 

S1

 

appears on the display when selected.

– SURROUND 2: Suitable for the reproduction of any stereo music sources. 

S2

 appears on the display when selected.

The indicator lamp of the selected mode lights.

Press SURROUND MODE 1 or SURROUND MODE 2.

To deactivate, press OFF. 

OF

 appears on the display.

CAUTION:

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

For USA-California Only

This product contains a CR Coin Cell Lithium Battery which contains 
Perchlorate material—special handling may apply. 
See www.dtsc.ca.gov/hazardouswaste/perchlorate

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TH-BA1_JC_D_4th.indd   2

10.2.25   2:34:35 PM

10.2.25   2:34:35 PM

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