User manual GENELEC 1034

[. . . ] (See Fig 1) Before installing the system, check all items for damage and omissions. If there are any damaged products, contact directly the distributor and insurance agent. If there are any missing components, contact your local dealer or GENELEC. 2. 3 LOUDSPEAKER POSITIONING The 1034B control room monitor is designed to be flush mounted in either the vertical or horizontal configuration. The DCW should be rotated so that the treble and midrange drivers align vertically. [. . . ] The space around the cabinet should be filled with mineral wool or sand bags. Discontinuities in the speaker mounting wall will cause diffraction, which leads to inferior frequency response and stereo imagery, so: · Ensure that the cabinet is flush with the surface of the wall. · If a decorative cloth frame is used to cover the wall, make sure that the edges adjacent to the speaker are less than 20 mm (3/4") deep. The cloth must be very thin Tricot or acoustically transparent material, otherwise the high frequency response of the system will be adversely affected. GENELEC approved cloth grilles are available. Fig 3. Side view (top), Plan view (bottom). Fig 4. Speaker mounting details. 2. 5 RECESS FOR LOUDSPEAKER CONNECTORS The speaker connector cable extends 100 mm (4") from the rear panel of the loudspeaker. Therefore, a space at least 100 mm (4") deep must exist to allow for the cable behind the loudspeaker. The dimensions of the recess should be at least 100x140x75 mm (4"x51/2"x3"), as shown in Fig. Note that the connectors are positioned off-centre. Therefore, if the loudspeaker is rotated for a left and right channel, the recess will be at different heights on the left and right side. This occurs when the speakers are mounted in the horizontal configuration. Fig 6. Eliminating discontinuities. 2. 6 CONNECTING CABLE The two connecting cables have different types of connectors at each end, a loudspeaker connector and an LED connector. The loudspeaker connector is larger than the LED connector, therefore the connectors cannot be inserted into the wrong socket. Insert the connectors into the appropriate sockets found on the rear panel of the amplifier unit and the rear of the loudspeaker. To insert the connectors proceed as follows: · Insert the connectors into the sockets and turn the connectors clockwise. · The electrical connections are only made when the connectors are fully inserted. To remove the connectors proceed as follows: · Pull the release lever on the connector and turn the connector counterclockwise simultaneously. The connector can now be removed from the socket. 3. ACOUSTICAL SETUP 3. 1 INPUT SENSITIVITY ADJUSTMENT The input sensitivity of the 1034B can be adjusted to match the output signal level of the driving source . This is done by turning the 'Input sensitivity' trimmer, which is accessed through the front panel of the amplifier unit. However, an accurate left/right balance is obtained when the trimmer is set to the fully clockwise 'cal' position. [. . . ] The air filter is located behind the grille, found to the left of the front panel. The air filter can be cleaned with a vacuum cleaner without removing the grille. High frequency roll-off This is due to the following physical factors: · Increasing room and air absorption with higher frequencies. · Increasing loudspeaker and microphone directivity with increasing frequency. 6. SAFETY CONSIDERATIONS Low frequency irregularities. These are caused by · Insufficient standing wave absorption in the control room. [. . . ]