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1. General description
1. General description
1. General description
1. General description
1. General description
System
System
System
System
System
The bi-amplified GENELEC HT205 is
a two way active speaker designed for
high quality Home Theater systems.
Designed as an active speaker, this
unit contains drivers, power amplifiers,
active crossover filters and protection
circuitry.
The Directivity Control
Waveguide (DCW) technology used
provides excellent frequency balance
even in difficult acoustic environments.
Integrated Construction
Integrated Construction
Integrated Construction
Integrated Construction
Integrated Construction
As the amplifiers are built into the
speaker
enclosure,
connections required are the mains
supply and the line level input signal,
making the HT205 very easy to set up
and use. The integrated design allows
the amplifiers and the drivers to be
calibrated as a single unit in the factory.
This eliminates the effects of
component tolerances and ensures
consistent quality. The cast aluminium
cabinet has rounded corners and a
hard-wearing painted outer surface.
Drivers
Drivers
Drivers
Drivers
Drivers
The bass frequencies are reproduced
by a 130 mm (5") bass driver mounted
in a 4.5 litre vented cabinet. The -3 dB
point lies at 68 Hz and the frequency
response extends down to 65 Hz
(-6 dB).
The high frequency driver is a 19 mm
3
(
/
") metal dome. Uniform dispersion
4
control
is
achieved
revolutionary DCW Technology
pioneered by Genelec, which has also
resulted in perfect phase and delay
uniformity at the crossover frequency.
Both drivers are magnetically
shielded.
Crossover
Crossover
Crossover
Crossover
Crossover
The amplifier unit contains an active
crossover. This is the ideal method for
dividing the input signal between the
driver units, allowing the overall
response of the system to be optimized
to an extent impossible with a passive
system. The active crossover controls
('treble tilt', 'bass tilt' and 'bass roll-
off') allow the HT205 to be exactly
matched to any application.
Amplifiers
Amplifiers
Amplifiers
Amplifiers
Amplifiers
The amplifier unit is built into the
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Figure 1. Suggested tone control settings for differing acoustic environments
speaker enclosure.
treble amplifiers both produce 40 W of
output power. The fast, low distortion
amplifiers are capable of driving a
the
only
stereo pair to peak output sound
pressure levels in excess of 110 dB at
1 m. The unit incorporates special
circuitry for driver overload protection.
Variable input sensitivity allows for
accurate level matching to the decoder
or preamplifier.
2. Installation
2. Installation
2. Installation
2. Installation
2. Installation
Place the loudspeakers in their
required positions, taking note of the
line of the listening axis (see figure 2).
Point the speakers to the center of the
listening area. See chapter "Speaker
placement" for further details.
Before connecting, ensure that the
mains switch is off and the volume
control (see figure 2) fully counter-
clockwise.
voltage selector is correctly set. Audio
with
the
Figure 2: HT205 outer dimensions, with the
reference axis between the bass and the
treble drivers.
T
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The bass and
Check that the mains
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input is made via a 10 kOhm balanced
(XLR) or unbalanced (RCA) connector
(see fig. 4). If the signal source has
suitable balanced outputs, we
recommend the use the XLR connector
and balanced interconnect cables due
to their better resistance to interference.
Once the connection has been made,
the speakers are ready to be switched
on.
Setting the volume control.
Setting the volume control.
Setting the volume control.
Setting the volume control.
Setting the volume control.
The input sensitivity of the speakers
can be matched to the output of the
signal source by adjusting the volume
control on the front panel (see figure 2).
Setting the tone controls
Setting the tone controls
Setting the tone controls
Setting the tone controls
Setting the tone controls
The response of the system usually
has to be adjusted to match the
acoustic environment. The adjustment
is done by setting the tone control
switches on the rear panel. The tone
control has four switches, 'treble tilt'
(sw. 1), 'bass roll-off.' (sw. 2) and 'bass
Figure 3: Suggested speaker placement
and alignment in a 5.1-channel Surround
system.
B
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) 2
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