The bi-amplified GENELEC HT206B,
HT208B and HT210B are two way active
speakers designed for high quality Home
Theater installations.
Designed as active speakers, these units
contain drivers, power amplifiers, active cross-
over filtering and protection circuitry. The
Directivity Control Waveguide™ (DCW™)
technology provides excellent frequency bal-
ance even in difficult 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 (6
1
/
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 disper-
sion control is achieved with the revolution-
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 amplifier unit contains an active crosso-
ver. This is the ideal method for dividing the
input signal between the driver units, allowing
the overall response of the system to be opti-
mized to an extent impossible with a passive
system.
To maintain uniform frequency balance in
differing acoustic environments, three switch
groups are included in the active crossover
network: treble and bass 'tilt' and bass 'roll-
off' switches, which make adjustments in 2 dB
steps.
Amplifiers
The amplifier unit is mounted to the rear of
the speaker enclosure. It includes individual
power amplifiers 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
amplifiers incorporate protection circuitry for
driver overload protection and amplifier ther-
mal overload protection. Variable input sensi-
tivity allows for accurate level matching with
the decoder or preamplifier output section.
The amplifiers are equipped with an “auto-
start” 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. Notice that "Autostart" and
"Remote control" functions are not available
in loudspeakers sold in the EU.
"Autostart" and "remote control" functions
can be enabled or disabled as required by
using the switches on the amplifier panel.
Installation
Place the loudspeakers in their required posi-
tions and aim them towards the center of the
listening area. Do not place the speaker in a
horizontal position as this may cause acousti-
cal cancellation problems around the crosso-
ver frequency.
Sufficient cooling for the amplifier must
be ensured if the speaker is installed in a
restricted space such as a cabinet or inte-
grated into a wall structure. The minimum
clearance for the amplifier is 10 cm (4") to
any object. The space adjacent to the ampli-
fier must either be ventilated or sufficiently
large to dissipate heat so that the ambient
temperature does not rise above 35 degrees
Celsius (95°F).
Before connecting 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 bal-
anced (XLR) or unbalanced (RCA) connec-
tor. If the signal source has suitable balanced
outputs, we recommend the use of XLR con-
nectors and balanced interconnect cables
due to their better resistance to interference.
Once connection has been made, the speak-
ers are ready to be powered 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
HT206B, HT208B and HT210B Active Home Theater Systems
System
