1034B Control Room Monitoring System
System
The Genelec 1034B is a powerful three-way
active monitoring system including loud-
speaker drivers, speaker enclosure, multiple
power amplifiers and low level active cross-
over. Designed for large control room this
system is ideal for music recording studios, film
and video post-production facilities, broadcast
main monitoring and mastering suites, where
broad bandwidth, high SPL’s and extended
low frequency response are essential. The
1034B is designed to be flush mounted in the
control room wall. The electronics are housed
in a standard 7U 19” equipment rack.
The unique Directivity Control Waveguide
(DCW™) Technology developed by Gen-
elec provides excellent stereo imaging and
frequency balance even in difficult acoustic
environments. The fast, low distortion ampli-
fiers are capable of driving a stereo system to
peak output levels in excess of 125 dB SPL
at 2 m with program signals. Versatile cross-
over controls allow for precise matching of
the loudspeaker system to different acoustic
conditions. The system can be used in both
vertical and horizontal orientation by simply
rotating the DCW unit
Protection circuitry
The 1034B amplifier unit contains electronic
circuitry which serves to protect the drivers
from damage by overload and distortion.
These circuits monitor each amplifier chan-
nel and automatically reduce the signal level
to the driver if an overload condition occurs.
In addition the signal levels to all drivers in
the loudspeaker are reduced by the same
amount. This preserves the frequency bal-
ance of the loudspeaker. An LED located
on the loudspeaker enclosure indicates the
status of this protection circuitry.
Amplifiers
The bass, midrange and treble amplifiers each
produce 2 x 400 W, 350 W and 120 W respec-
tively of short term power with very low THD
and IM distortion. The electronics have been
carefully designed to ensure the highest sub-
jective sound quality currently possible. The
system incorporates special circuitry for driv-
ers overload protection and amplifiers thermal
protection. A standard 10 m cable is supplied
for the speaker enclosure connection. Longer
lengths are available upon special order.
Drivers
The bass frequencies are reproduced by two
long throw 305 mm (12”) bass drivers loaded
with a 160 liters vented box. The -3 dB point is
32 Hz and the low frequency response extends
down to 28 Hz (-6 dB). The midrange frequen-
cies are reproduced by a proprietary 130 mm
(5”) high sensitivity direct radiating cone driver
loaded with the DCW. The high frequency
driver is a 25 mm (1”) metal dome also loaded
by the DCW with an upper -3 dB point at 22
kHz. The midrange and high frequency drivers
have field replaceable diaphragms.
Flush mounting
Flush mounting the loudspeaker into a wall
offers important advantages by eliminating
unwanted secondary sound radiation from the
loudspeaker cabinet’s edges and nearly ideal-
izing the radiation space to half space, eliminat-
ing as well reflections from the wall behind the
loudspeaker. The result is minimization of dif-
fraction effects, linear low frequency response,
increased speaker output, improved transient
response and imaging. The use of the DCW
Technology removes the diffraction effects to
a large extent. Moreover, the 1034B has ver-
satile crossover controls to compensate and
adjust response variations due to different
loudspeaker positioning and room loading.
Crossover filter
The active crossover network consists of
three parallel band pass filters, with cross-
over frequencies at 400 Hz and 3.2 kHz, and
a common balanced input stage. All the filters
are aligned for equal phase and group delay
characteristics and are acoustically comple-
mentary. The filter slopes are 24 dB/octave.
In order to obtain uniform frequency balance
under different acoustic conditions, special cal-
Applications
• Main monitor for large control rooms
• Music recording studios
• Video/Film post-production facilities
• TV music production studios
• Broadcast main studio monitoring
• Mastering Suites