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Lou��spe�ker mounting
B�ss
position
roll-off
Free �nechoic response
None
Free st�n��ing in �
None
���mpe�� room
Free st�n��ing in �
None
reverber�nt room
In � corner
-� ��B
Flush mounte��
None
��ble �. Suggeste�� tone control settings for ��ifferent �coustic environments
W1
H1
�� mm (in)
W� mm (in)
�������
�40 (��
�
/
")
�00 (7
4
�������
6�0 (��
�
/
")
�40 (9
8
Figure �. Loc�tion of the �coustic �xis
�0kOhm b�l�nce�� XLR connector, but unb�l-
�nce�� le���s m�y be use�� �s long �s pin � is
groun��e�� to pin � of the XLR. Once connec-
tion h�s been m���e, the lou��spe�kers �re
re���y to be powere��-up.
Setting the input sensitivity
����justment of the input sensitivity of e�ch
lou��spe�ker c�n be m���e to m�tch the output
of the mixing console or other source, by use
of the input sensitivity control on the re�r
p�nel (see Figure �). �� sm�ll screw��river is
nee��e�� for the ���justment. �he m�nuf�cturer
��ef�ult setting for this control is -6 ��Bu (fully
clockwise) which gives �n SPL of �00 ��B
@�m with -6 ��Bu input level. �o get the full
output level of ��0 ��B SPL from the �������
�n input level of +�4 ��Bu is nee��e�� �t this
setting. Respectively, the full output level of
the ������� is re�che�� �t �n input level of
+�0 ��Bu.
��utost�rt �n�� remote control
�he ������� �n�� ������� �re equippe�� with
�n "��utost�rt" function, which �utom�tic�lly
turns the �mplifier to "st�n��by" mo��e if �n
input sign�l h�s not been ��etecte�� for �pprox-
im�tely thirty minutes, �n�� b�ck to "on" mo��e
when the sign�l returns. �he function c�n be
��e�ctiv�te�� by turning the "��U�OS���R�" ��ip
switch to "OFF". �� two-colour LED on the
�mplifier p�nel in��ic�tes the �mplifier st�tus:
B�ss
B�ss
Mi��r�nge
�reble
tilt
level
level
level
None
None
None
None
-� ��B
None
None
None
-� ��B
-� ��B
None
None
-� ��B
-� ��B
None
None
None
-4 ��B
None
None
H2
W2
ACOUSTICAL
AXIS
�� mm (in)
W� mm (in)
7
/
")
��0 (9
�
/
")
�70 (6
��
/
")
8
�6
�6
�
/
")
�8� (��
�
/
")
�0� (7
��
/
")
�
8
�6
green for "on" �n�� yellow for "st�n��by".
�he �mplifier mo��e c�n �lso be switche��
by � remote control unit connecte�� to the
respective inputs on the �mplifier. �wo p�irs
of connectors �re provi��e��, � �n�� � for � ��
V DC type remote control, �n�� � �n�� 4 for
�n extern�l switch or rel�y type control. Do
not connect two remote controls to the lou��-
spe�ker�t the s�me time. ��ctiv�te the func-
tion by turning the "REMO�E CON�ROL" ��ip
switch on the �mplifier p�nel to "ON". Note
th�t the remote control function overri��es the
"�utost�rt" ��ip switch function.
Setting the tone controls
�he �coustic response of the system m�y
�lso h�ve to be ���juste�� to m�tch the �coustic
environment. �he ���justment is ��one by set-
ting the five tone control switch groups 'b�ss
tilt', 'b�ss roll-off', 'b�ss level', 'mi�� level' �n��
'treble level' on the re�r p�nel of the �mplifier.
�he m�nuf�cturer's ��ef�ult settings for these
controls �re '��ll Off' to give � fl�t �nechoic
response. See ��ble � for suggeste�� tone
control settings in ��iffering �coustic environ-
ments. Figures 7 �n�� 8 show the effect of the
controls on the �nechoic response. ��lw�ys
st�rt ���justment by setting �ll switches to
the 'OFF' position. �hen set only one switch
per group to the 'ON' position to select the
response curve require��. If more th�n one
switch is set to 'ON' (within one switch group)
TREBLE,MIDRANGE
AND BASS LEVEL
SWITCHES
BASS TILT AND
ROLL-OFF
SWITCHES
REMOTE CONTROL
REMOTE
CONTROL
AND INDICATOR LED
OFF
ON
SWITCHES
1
2
REMOTE CONTROL
3
4
CONNECTORS
DO NOT USE BOTH
REMOTE CONTROL
TYPES AT THE
SAME TIME.
SWITCH THE REMOTE
INPUT
CONTROL DIP SWITCH
ON WHEN USING
REMOTE CONTROL.
REMOTE CONTROL
OVERRIDES
SENSITIVITY
AUTOSTART FUNCTION.
AUTOSTART SETS
THE AMPLIFIER TO
STANDBY MODE
ADJUSTMENT
WHEN THERE
IS NO SIGNAL.
SIGNAL INPUT
CONNECTOR
MAINS VOLTAGE
SELECTOR, MAINS
CONNECTOR
AND SWITCH
Figure �. ��mplifier p�nel l�yout of the �������.
the �ttenu�tion v�lue is no longer �ccur�te.
Vertic�l / horizont�l mounting
�he lou��spe�kers �re ��elivere�� either for
vertic�l or horizont�l mounting. In the hori-
zont�l mounting position the b�ss ��rivers
shoul�� point inw�r��s to obt�in better low
frequency coupling. If the lou��spe�ker posi-
tioning nee��s to be ch�nge��, the DCW pl�te
c�n be rot�te�� so th�t the mi��r�nge ��river
rem�ins �lw�ys loc�te�� �t the bottom of the
DCW. Remove the four corner screws of the
DCW �n�� pull the pl�te c�refully out without
stressing the wires �n�� the g�sket. Rot�te
the pl�te 90 ��egrees in the �ppropri�te ��irec-
tion �n�� remount the screws.
�he ������� �n�� ������� c�n be use�� flush
mounte�� into the w�ll structure, which offers
some �coustic�l benefits. No c�binet e��ge
��iffr�ction will occur, resulting in �n improve��
response, especi�lly �t mi��r�nge frequen-
cies. Low frequency reflections from the w�ll
behin�� the lou��spe�ker c�n be �voi��e��,
which improves the low frequency response
�n�� efficiency �n�� �llows the lou��spe�ker
to work in h�lf sp�ce con��itions. In terms of
inst�ll�tion �n�� orient�tion, the lou��spe�ker's
�coustic�l �xis (See Figure �.) shoul�� �lso
point ��irectly to the the reference listening
position. �he lou��spe�kers shoul�� be verti-
USING THE TONE CONTROLS
-1
-2
-3
TREBLE
REFER TO THE OPERATING MANUAL FOR
-4 dB
-5
LEVEL
SUGGESTED TONE CONTROL SETTINGS.
-6
MUTE
FOR ACCURATE OPERATION ONLY ONE
OFF
ON
SWITCH IN EACH TONE CONTROL GROUP
SHOULD BE ON AT A TIME.
FOR A FLAT FREE FIELD RESPONSE SET ALL
TONE CONTROLS TO OFF.
OFF
ON
-1
-2
-3
MID
CAL POSITION
-4 dB
LEVEL
ALL TONE CONTROLS : OFF
-5
-6
MUTE
INPUT SENSITIVITY : -6dBu
LEVEL CONTROLS
dB
BASS
MID
TREBLE
0
OFF
ON
-1
-2
-1
-2
-3
-3
BASS
-4
-4 dB
-5
-5
LEVEL
-6
-6
MUTE
20Hz
400Hz
3kHz
20kHz
CONNECTOR
REMOTE CONTROL
AMPLIFIER MODE
PIN NO.
TYPE
1
+
PIN 1 HIGH: ON
12 V DC REMOTE
2
GND
PIN 1 LOW: STANDBY
dB
3
EXTERNAL SWITCH
CONTACT CLOSED: ON
ALL OFF
4
OR RELAY
CONTACT OPEN: STANDBY
0
-2
-4
REMOTE CTRL
-6
AUTOSTART
OFF
ON
POWER LED
-8
BASS
STANDBY LED
-2
-4 dB
TILT
-6
-8
20Hz
250Hz
+
12 V DC
GND
REMOTE
OFF
ON
dB
BASS
EXTERNAL
-2
ALL OFF
SWITCH
-4 dB
0
-6
ROLL-OFF
OR RELAY
-2
-8
-4
-6
-8
INPUT SENSITIVITY
20Hz
100Hz
0
INPUT SENSITIVITY
+2
-2
REQUIRED FOR
+4
-4
100dB SPL@1m.
REFER TO
+6
-6
OPERATING MANUAL
dBu
FOR MAXIMUM SPL.
HT312A ACTIVE HOME THEATER SYSTEM
MAGNETICALLY SHIELDED
www.genelec.com
SIGNAL INPUT
MADE IN FINLAND
1
SERIAL
NUMBER
PIN 1 = GROUND
3
PIN 2 = + INPUT
PIN 3 = - INPUT
2
WARNING
MAINS
VOLTAGE
ELECTRIC SHOCK HAZARD!
SELECTOR
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.
MAINS INPUT
50 / 60 Hz
300 Watts
ENSURE THAT THE CORRECT VOLTAGE IS SELECTED BEFORE
115 / 230 V
˜
CONNECTING TO THE MAINS SUPPLY.
THIS EQUIPMENT IS CAPABLE OF PRODUCING SOUND
PRESSURE LEVELS IN EXCESS OF 85dB WHICH MAY CAUSE
PERMANENT HEARING DAMAGE.
ON
ON
DO NOT EXPOSE TO WATER OR MOISTURE.
Flush mounting
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