HT Series
Operating Manual
Genelec HT206B, HT208B and HT210B
Active Home Theater Systems
HT206B, HT208B and HT210B Active Home Theater Systems
System
The bi-amplifi ed GENELEC HT206B,
HT208B and HT210B are two way active
speakers de signed for high quality Home
Theater installations.
Designed as active speakers, these units
contain drivers, power am pli fi ers, active
crossover fi ltering and protection circuitry.
The Directivity Control Waveguide™ (DCW™)
technology provides excellent frequency balance even in diffi cult acoustic environments.
Drivers
The HT210B has a 250 mm (10") bass driver
and the low frequency response extends
down to 36 Hz (-6 dB). The HT208B has
a 210 mm (8") bass driver with -6 dB point
at 43 Hz and the HT206B a 170 mm (61/2")
driver with -6 dB point at 47 Hz.
The high frequency driver is a 25 mm
(1") (HT210B, HT208B) or a 19 mm (3/4")
(HT206) metal dome. The uniform dispersion
control is achieved with the rev o lu tion ary
DCW technology pioneered by Genelec.
The DCW also provides perfect phase and
delay uniformity at the crossover frequency.
The bass and treble drivers are magnetically
shielded on all models.
Crossover
The amplifi er unit contains an active crossover. This is the ideal method for di vid ing the
input signal be tween the driver units, allow-
ing the over all response of the system to
be optimized to an extent im pos si ble with a
passive system.
To main tain uniform fre quen cy bal ance in
dif fer ing acoustic en vi ron ments, three switch
groups are included in the active cross over
network: treble and bass 'tilt' and bass 'rolloff' switches, which make ad just ments in
2 dB steps.
Amplifiers
The amplifi er unit is mounted to the rear of
the speaker enclosure. It includes individual
power amplifi ers for each speaker driver,
120+180 watts on the HT210B, 120+120 W
on the HT208B and 50+80 W on the HT206B
for the treble and bass drivers respectively.
The amplifi ers incorporate protection circuitry
for driver overload protection and amplifi er
thermal overload protection. Variable input
sensitivity allows for accurate level matching with the decoder or preamplifi er output
section.
The amplifi ers are equipped with an
“autostart” function for automatic switching
between “standby” and “on” power modes.
The power mode can also be changed with
a 12 V trigger voltage or external switch
type remote control. An indicator LED on the
DCW plate shows the system status.
"Autostart" and "remote control" functions
can be enabled or disabled as required by
using the switches on the speaker back
panel.
Installation
Place the loud speakers in their required
positions and aim them towards the center of
the listening area. Do not place the speaker
in a horizontal position as this may cause
acoustical cancellation problems around the
crossover frequency.
Suffi cient cooling for the amplifi er must
be ensured if the speaker is installed in a
restricted space such as a cabinet or integrated into a wall structure. The minimum
clearance for the amplifi er is 10 cm (4") to
any object. The space adjacent to the amplifi er must either be ventilated or suffi ciently
large to dissipate heat so that the ambient
temperature does not rise above 35 degrees
Celsius (95°F).
Before con nect ing up, ensure that the mains
switch is set to "OFF". Check that the mains
voltage selector is set to your local voltage.
Audio input is made via a 10 kOhm balanced (XLR) or unbalanced (RCA) connector. If the signal source has suitab le balanced
outputs, we recommend the use of XLR connectors and balanced interconnect cables
due to their better resistance to interference.
Once connection has been made, the speakers are ready to be pow ered up.
Setting the input sensitivity
The input sensitivity of Genelec HT series
speakers can be matched to the decoder
output section or other source by using the
Figure 1. Switch and connector layout on the amplifier panel. HT208B shown.
Figure 2. RCA to XLR cable.
input sensitivity con trol on the rear panel
(see fi gure 1). A small scre wdriv er is needed
for the adjustment. The manufacturer's
default setting for this control is -6 dBu (fully
clockwise) which gives a sound pressure of
100 dB @1m with -6 dBu input level. Note
that to get the full output level of 110 dB
SPL, an input level of +4 dBu is needed in
this setting.
Setting the tone controls
The acoustic response of the sys tem may
also have to be ad justed to match the acoustic en vi ron ment. The adjustment is done by
setting the three tone control switch groups
'treble tilt', 'bass tilt' and 'bass roll-off' on
the rear panel of the amplifi er. The factory
default settings for these controls are 'All Off'
to give a fl at anechoic response. Figures 3
to 5 overleaf illustrate the effect of the tone
controls. Always start adjustment by setting
all switches to the 'OFF' position. Then set
only one switch to the 'ON' position to select
the response curve needed. If more than one
switch is set to 'ON' (within one switch group)
the attenuation value is not accurate.
Autostart and remote control
The amplifi ers 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 fi ve minutes, and back to “on” mode
when the signal returns. The function can be
deactivated by turning the “AUTOSTART” dip
switch to “OFF”.
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 con-
nectors are provided, 1 and 2 for a 12 V DC
type remote control, and 3 and 4 for an external switch or relay type control. Do not connect
two remote controls to the to the speaker at
the same time. Activate the function by turning
the "REMOTE CONTROL" dip switch on the
amplifi er panel to "ON". Note that the remote
control overrides the “autostart” function.
Status indicator LED
The status indicator LED changes colour to
indicate amplifi er status. If the LED is orange ,
it indicates that the speaker is in "standby"
mode. When the speaker is turned to "on"
mode, the LED changes to green. If the
LED turns red, it indicates that the amplifi er
thermal protection circuit has been activated.
Let the amplifi er cool down and check that
there is suffi cient clearance around the
amplifi er for cooling.
The LED can be switched off by turning the "POWER LED" and "STANDBY
LED" switchches to "OFF". Both of these
switches should always be set to the same
position.
Maintenance
There are no user serviceable parts within
the speaker. Any maintenance or repair
may only be undertaken by quali fi ed service
personnel.
Safety considerations
1. Servicing and adjustment must only be
performed by qualifi ed service
personnel. Opening the amplifi er's rear
panel is strictly prohibited.
2. It is forbidden to use this product
with an unearthed mains cable,
which may lead to personal injury.
3. To prevent fi re or electric shock, do not
expose the unit to water or moisture.
Do not place any objects fi lled with
liquid, such as vases on the
speaker or near it.
4. Note that the amplifi er is not
completely disconnected from the AC
mains service unless the mains power
cord 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.
Guarantee
This product is supplied with a two year
guarantee against manufacturing faults or
defects that might alter the performance of
the unit. Refer to supplier for full sales and
guarantee terms.
HT206B, HT208B and HT210B Operating Manual
SYSTEM SPECIFICATIONS
AUDIO
HT206B HT208B HT210B
Free fi eld frequency response
(+/- 2,5 dB)
Maximum peak acoustic >
output per pair @ 1m
measuring distance with
music material:
Self generated noise level in ≤ 10 dB ≤ 10 dB ≤ 10 dB
free fi eld @ 1 m on axis
(A-weighted)
Drivers, magnetically shielded
Bass
Treble 19 mm (
metal dome metal dome metal dome
Bass amplifi er power output Short term 80 W Short term 120 W Short term 180 W
Treble amplifi er power output Short term 50 W Short ter m 120 W Short term 120 W
Amplifi er system distor tion
at nominal output
THD ≤ 0.08% ≤ 0.05% ≤ 0.05%
SMPTE-IM ≤ 0.08% ≤ 0.05% ≤ 0.05%
CCF-IM ≤ 0.08% ≤ 0.05% ≤ 0.05%
DIM-100 ≤ 0.08% ≤ 0.05% ≤ 0.05%
Harmonic distortion at
90 dB SPL @ 1 m on axis < 3 % (60...150 Hz) < 1 % (50...100 Hz) < 1 % (50...100 Hz)
< 0.5 % ( >150 Hz) < 0.5 % ( >100 Hz) < 0.5 % ( >100 Hz)
55 Hz - 18 kHz 48 Hz - 22 kHz 42 Hz - 21 kHz
115 dB SPL >120 dB SPL >124 dB SPL
170 mm (61/2") 210 mm (8") 250 mm (10")
3
/4") 25 mm (1") 25 mm (1")
Input impedance 10 kOhm balanced/unbalanced
Input connectors XLR balanced, RCA unbalanced
Crossover frequency 3.5 kHz 2.2 kHz 1.8 kHz
Mains voltage 100 / 200 or 115 / 230 V
Power consumption
Standby 7 VA 5 VA 5 VA
Idle 10 VA 15 VA 20 VA
Full output 100 V A 160 VA 200 V A
Weight 7,6 kg (17 lbs) 12,7 kg (28 lbs) 21,7 kg (48 lbs)
Dimensions
Height 312 mm (12 1/4”) 395 mm (15 9/16”) 495 mm (19 1/2”)
Width 200 mm (7 7/8”) 250 mm (9 7/8”) 320 mm (12 5/8”)
Depth 240 mm (9 1/2”) 290 mm (11 7/16”) 290 mm (11 7/8”)
Maximum ambient temperature 35° C (95° F)
PRECISION
100
95
90
85
80
75
70
65
60
Figure 3. The effect of treble tilt, bass tilt and bass roll-off
controls on the free field response of the HT206B.
AUDIO
100
95
90
85
80
75
70
65
60
20 100 1k 10k 20k
Figure 4. The effect of treble tilt, bass tilt and bass roll-off
controls on the free field response of the HT208B.
HT206B anec
BASS ROLL-OFF
20 100 1k
PRECISION
HT208B anec
BASS ROLL-OFF
LEVEL(dBr)
BASS TILT
BASS TILT
LEVEL(dBr)
vs
FREQ(Hz)
17
JAN0312:00:26
TREBLE TILT
20k
10k
vs
FREQ(Hz)
21
JAN0312:10:45
TREBLE TILT
CONTROLS AND FEATURES
HT206B HT208B HT210B
Input sensitivity adjustment +6 to –6 dBu for 100dB @ 1 m, continuously variable
Treble Tilt control in 2 dB steps @ 15 kHz @ 15 kHz @ 15 kHz
from +2 to -4 dB & MUTE
Bass Tilt control in 2 dB steps @ 100 Hz @ 80 Hz @ 80 Hz
from 0 to -8 dB & MUTE
Bass Roll-Off control in 2 dB @ 50 Hz @ 40 Hz @ 40 Hz
steps from 0 to -8 dB
Autostart Automatic power mode switching
Remote control Power mode switching by 12 V trigger or external switch / relay
type remote control
Led shutoff Shuts off mode indicator led
Genelec Document D0050R001. Copyright Genelec Oy 3.2003. All data subject to change without prior notice
International enquiries:
Genelec, Olvitie 5
FIN-74100, Iisalmi, Finland
Phone +358 17 83 881
Fax +358 17 812 267
Email genelec@genelec.com
AUDIO PRECISION HT210Banec
100
95
90
85
80
75
70
65
60
20 100 1k 10k 20k
BASS TILT
BASS ROLL-OFF
LEVEL(dBr)
Vs
FREQ(Hz)
02 JAN 03 10:17:22
TREBLE TILT
Figure 5. The effect of treble tilt, bass tilt and bass roll-off
controls on the free field response of the HT210B.
www.genelec.com
In the U.S. please contact:
Genelec, Inc., 7 Tech Circle
Natick, MA 01760, USA
Phone +1 508 652 0900
Fax +1 508 652 0909
Email genelec.usa@genelec.com
In China please contact:
Genelec China Representative Office
Soho New Town, 88 Jianguo Road
D-1504, Chaoyang District
Beijing 100022, China
Phone +86 10 8580 2180
Fax +86 10 8580 2181
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