variable or fi xed, consult the operating
manual of your processor.
• Connect an audio frequency signal
generator to one of the input channels
used in the system.
• Set the frequency generator to the same
frequency as the subwoofer crossover
frequency on your decoder. If a signal
generator is not available, you can use an
audio test recording with a suitable range
of test frequencies.
• Toggle the -180° phase switch
‘ON’ and ‘OFF’ and set it to the
position which gives the lowest
sound level at the listening
position.
• Next toggle the -90°phase
switch ‘ON’ and ‘OFF’, and
again set it to the position
which gives the lowest sound
level.
• Finally, set the -180°phase
switch to the opposite setting.
After the phase setting has been completed,
return the speaker confi guration on the proc-
essor to its’ original settings.
Using multiple subwoofers
The HTS3B and HTS4B are equipped with
a “LINK OUT” connector to provide an easy
way of coupling two or more subwoofers
together in high SPL applications. Connect
an XLR cable from the “LINK OUT” connec-
tor of the “master” subwoofer to which the
decoder is connected, to the XLR input con-
nector of the other, “slave” subwoofer.
When two subwoofers connected in this
way are positioned close to one another,
bass level increases by 6 dB. Three subwoof-
ers give an bass SPL increase of 9,5 dB and
four subwoofers 12 dB compared to a single
subwoofer. Adjust the sensitivity control of all
subwoofers in the group to match the SPL
level of the main monitor system. Note that
the sensitivity setting must be the same on
all subwoofers.
Autostart and remote control
HTS3B and HTS4B are equipped with an
“AUTOSTART” function, which automatically
turns the amplifi er to “STANDBY” mode if
an input signal has not been detected for
approximately 30 minutes, and back to
“ON” mode when the signal returns. The
function can be deactivated by turning the
“AUTOSTART” dip switch to “OFF”. A two-
colour LED on the amplifi er panel indicates
the amplifi er status: green for “ON” and
yellow for “STANDBY”.
The amplifi er mode can also be switched
by a remote control unit connected to the
respective inputs on the amplifi er. Two pairs
of connectors are provided, 1 and 2 for a
12 V DC trigger type remote control, and 3
and 4 for an external switch or relay type
control. Switch the “REMOTE CONTROL”
dip switch to “ON” to activate this function.
Do not connect two remote controls to the
subwoofer at the same time. Remote control
overrides the “AUTOSTART” function.
Automatic protection circuits
Both HTS3B and HTS4B subwoofers have
protection circuits against speaker driver
thermal overload and amplifi er overheating.
The protection system resets automatically
so that the user only has to turn the input
level down to ensure that it does not reac-
tivate.
Safety considerations
Genelec HTS3B and HTS4B comply with inter-
national safety standards. However, to ensure
safe operation and maintain the equipment in
safe operating condition the following warn-
ings and cautions must be observed.
• Servicing and adjustment must only be
performed by qualifi ed service personnel.
• Opening the amplifi er panel is strictly
prohibited except by qualifi ed service
personnel.
• Do not expose the subwoofer to water or
moisture. Do not place any objects fi lled
with liquid, such as vases on the
subwoofer or near it.
• Always use a mains power connection
with protective earth. Failing to do this
may lead to personal injury.
• Note that the amplifi er is not completely
disconnected from the AC mains service
unless the mains cable is removed from
the amplifi er 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.
Maintenance
There are no user serviceable parts inside
the subwoofer. Any maintenance of the unit
must only be performed by qualifi ed service
personnel.
Guarantee
This product is supplied with two year guaran-
tee against manufacturing faults or defects that
might alter the performance of the unit. Refer to
supplier for full sales and guarantee terms.
Figure 1. Connectors and controls of the HTS3B.
Remote
control type
Pole or
contact
Connect to
remote control
input pin no.
+
1
12 V DC
remote
control
-
2
Contact 1
3
External
switch or
relay
Contact 2
4
Connect only one remote control unit at a time
Table 1. Remote control connectors of the
HTS3B and HTS4B
CAL POSITION
ALL CONTROLS : OFF
INPUT SENSITIVITY : -6dBu
FOR A FLAT FREE FIELD RESPONSE
SET ALL TONE CONTROLS TO OFF.
ROOM CONTROL SETTINGS
REFER TO THE OPERATING MANUAL FOR SUGGESTED
CONTROL SETTINGS.
1
SENSITIVITY FOR
100dB SPL@1m
ENSURE THAT THE CORRECT
VOLTAGE IS SELECTED BEFORE
CONNECTING TO THE MAINS
SUPPLY.
THIS EQUIPMENT IS CAPABLE OF
PRODUCING SOUND PRESSURE
LEVELS IN EXCESS OF 85dB WHICH
MAY CAUSE PERMANENT HEARING
DAMAGE.
DO NOT EXPOSE TO WATER OR
MOISTURE.
MAINS
VOLTAGE
SELECTOR
DO NOT USE BOTH INPUTS
AT THE SAME TIME
IT IS FORBIDDEN TO UNDO ANY
SCREWS ON THIS EQUIPMENT.
SERVICING AND ADJUSTMENT
MUST ONLY BE CARRIED OUT BY
QUALIFIED SERVICE PERSONNEL
.
NEVER OPERATE THIS EQUIPMENT
WITHOUT A PROPER EARTHED
MAINS CONNECTION.
ELECTRIC SHOCK HAZARD!
WARNING
OUT
PIN
1
2
3
SIGNAL GND +
-
IN
1
2 3
2
3
1
2
XLR INPUT
LINK OUT
-3
+6
RCA INPUT
dBu
+9
+12
-6
+3
0
SWITCH THE REMOTE CONTROL DIP
SWITCH ON WHEN USING REMOTE
CONTROL.
GREEN =
NORMAL
OPERATION
YELLOW =
STANDBY
SERIAL
NUMBER
ON
MAINS INPUT
50 / 60 Hz
200 Watts
115 / 230 V~
18Hz
120Hz
GENELECR
HTS3B ACTIVE HOME THEATER SUBWOOFER
SW2
OFF
ON
OFF
ON
PHASE AT CROSSOVER
SW1
OFF
OFF
ON
ON
PHASE
0°
-90°
-180°
-270°
-10
SW5
OFF
OFF
OFF
ON
ON
ON
SW3
OFF
ON
OFF
OFF
OFF
ON
ROLL-OFF
0dB
-2dB
-4dB
-6dB
-8dB
-10dB
SW4
OFF
OFF
ON
OFF
ON
ON
BASS ROLL-OFF
0
-4
-2
-6
-8
dB
MAGNETICALLY SHIELDED
www.genelec.com
MADE IN FINLAND
REMOTE CONTROL OVERRIDES
AUTOSTART FUNCTION.
AUTOSTART SETS THE AMPLIFIER TO
STANDBY MODE WHEN THERE IS NO
SIGNAL.
ALL OFF
CONNECTOR
PIN NO.
-4 dB
-6 dB
-2 dB
ROLL-OFF
REMOTE CONTROL
POWER
AUTOSTART
PHASE
0/-180 DEG
0/-90 DEG
ON
1
2
3
4
+ GND
OFF
REMOTE
CONTROL
INPUTS
AMPLIFIER MODE
PIN 1 HIGH: ON
PIN 1 LOW: STANDBY
CONTACT CLOSED: ON
CONTACT OPEN: STANDBY
DO NOT USE BOTH REMOTE CONTROL
TYPES AT THE SAME TIME.
3
EXTERNAL SWITCH
4
OR RELAY
REMOTE CONTROL TYPE
12 V DC REMOTE
1
+
2
GND
XLR INPUT,
LINK OUT AND
RCA INPUT
CONNECTORS
SENSITIVITY
ADJUSTMENT
PHASE, BASS ROLL-OFF,
AUTOSTART AND REMOTE
CONTROL SWITCHES
MAINS VOLTAGE
SELECTOR,
CONNECTOR
AND SWITCH
