Genelec 8010A Operating Manual page 18

8040B Active Monitoring System
System
The Genelec 8040B is a compact bi-amplified
active monitor system with performance com-
parable to much larger systems. The 8040B
takes full advantage of the unconventional
design and advanced technologies of Genel-
ec's 8000 Series loudspeaker range. The all-
aluminium Minimum Diffraction Enclosure™
(MDE™) and advanced Directivity Control
Waveguide™ (DCW™) technologies are care-
fully matched with advanced amplifier and
electronic circuitry and the latest drivers. Bass
response has been widened down to 45 Hz (-3
dB) while distortion is substantially lower due
to a uniquely new rear reflex port design. The
system's excellent directivity characteristics
and accurate imaging together with its com-
pact size and flexible mounting options make
the 8040B the perfect monitoring tool for a
wide range of applications.
The 8040B has been specially designed to
have a sufficient LF extension for most situ-
ations. However if greater SPL's and a lower
cutoff frequency are required, it can be com-
plemented with a Genelec subwoofer.
Integrated construction
The 8040B is very easy to set up and use,
the only connections required are the mains
supply and the line level input. The input is
made via a balanced female XLR connec-
tor. The input sensitivity of the 8040B can be
adjusted for easy level matching with other
audio equipment.
The integrated design allows the amplifiers
and the drivers to be calibrated as a single unit,
eliminating the effects of component tolerances
and ensuring consistent production quality.
Crossover filters
The amplifier unit contains an active cross-
over, a feature more commonly used in large
and expensive control room monitors. This
is the ideal method for dividing the input
signal between the driver units. The active
crossover allows the overall response of the
system to be optimized to an extent impos-
sible with a passive system. To maintain uni-
form frequency balance in differing acoustic
environments, special calibrated controls are
included in the active crossover network.
These controls include "treble tilt", "bass tilt"
and "bass roll-off" functions.
A new function, "desktop low frequency"
control attenuates the bass frequencies
around 160 Hz by 4 dB. This feature is
designed to compensate for the boost often
occurring at this frequency range when the
loudspeaker is placed upon a meter bridge,
table or a similar reflective horizontal surface.
Amplifiers
The bass and treble amplifiers produce
90 W of output power each, with very low
THD and IM distortion values. Each amplifier
Applications
• Near Field Monitoring
• Broadcast & TV Control Rooms
• Audio Video Post Production
• Mobile Vans
• Project / Home Studios
• Digital Workstations
• Multimedia Production and
Playback
is designed to precisely match the driver it is
connected to, thus ensuring the highest sub-
jective sound quality currently possible. The
amplifier unit also contains a protection circuit
that monitors the output levels and prevents
any damage to the drivers. This makes the
system immune to overloads and spurious
signals.
Drivers
A 19 mm ( / ") metal dome tweeter is loaded
3
4
by an advanced DCW™ waveguide, which is
integrated into the one piece front baffle. The
improved DCW™ provides superior directivity
charcteristics and perfect matching between
the drivers.
The 165 mm (6.5") bass cone driver is
mounted in a newly designed bass reflex
enclosure. The long, flow optimized reflex
tube has a large cross sectional area and
terminates with a wide flare at the back of
the enclosure.
Protective grilles are positioned in front of
both drivers. Magnetic shielding is standard
on the 8040B. Shielding is vital for applica-
tions such as video post production, where
stray magnetic fields must be minimized.
ISS autostart function
TM
When the power switch on the back panel of
the loudspeaker is set to "ON", the Intelligent
Signal Sensing TM (ISS TM ) autostart function
of the 8040B is active. Automatic power-