Genelec 8040A and 8050A Monitoring Systems
System
The GENELEC 8040A and 8050A are two way active monitoring loudspeakers designed to produce high SPL output, low coloration and broad bandwidth in a small enclosure size. They are suitable for a wide variety of tasks, such as near field monitor- ing, mobile vans, broadcast and TV control rooms, surround sound systems and home studios. Designed as active loudspeak- ers, they contain drivers, power amplifiers, active crossover filters and protection cir- cuitry. The Minimum Diffraction Enclosure™ (MDE™) and advanced Directivity Control Waveguide™ (DCW™) technologies provide excellent frequency balance even in difficult acoustic environments.
Crossover
The active crossover network consists of two parallel bandpass filters. The crossover frequency is 3.0 kHz on the 8040A and 1.8 kHz on the 8050A. The active crossover controls ("treble tilt", "desktop low frequency", "bass tilt" and "bass
Amplifiers
The amplifier unit is mounted in the rear of the loudspeaker enclosure. The unit incorporates special circuitry for driver thermal overload protection. Variable input sensitivity allows accurate level matching to console output section.
Mounting considerations
Align the loudspeakers correctly
Always place the loudspeakers so that their acoustic axes (see figure 2) are aimed towards the listening position. Vertical placement is preferable, as it minimises acoustical cancellation problems around the crossover frequency.
Maintain symmetry
Check that the loudspeakers are placed symmetrically and at an equal distance from the listening position. If possible, place the system so that the listening position is on the centerline of the room and the loudspeakers are placed at an equal distance from the cen- terline.
Drivers
The bass driver dimensions are 165 mm (6 1/2”) and 205 mm (8") for 8040A and 8050A respectively. The long, flow optimized reflex tube has a large cross sectional area and terminates with a wide flare at the back of the enclosure. The high frequency driver is a 19 mm (3/4”) metal dome on the 8040A and a 25 mm (1") metal dome on the 8050A. Both drivers are magnetically shielded.
Connections
Each loudspeaker is supplied with a mains cable and an operating manual. Before connecting up, ensure that the mains switch is off (see figure 1). Audio input is via a 10 kOhm balanced XLR connector, but unbalanced leads may be used as long as pin 3 is grounded to pin 1 of the XLR (see figure 3). Once the connections have been made, the loudspeakers are ready to be switched on.
Minimise reflections
Acoustic reflections from objects close to the loudspeakers like desks, cabinets, computer monitors etc. can cause unwanted colouration and blurring of the sound image. These can be minimised by placing the loudspeaker clear of reflective surfaces. For instance, putting the loudspeakers on stands behind and above the mixing console usually gives a better result than placing them on the meter bridge.