User manual GENELEC 8030A

[. . . ] The MDETM (Minimum Diffraction EnclosureTM) loudspeaker enclosure is made of die-cast aluminium and shaped to reduce edge diffraction. Combined with the advanced Directivity Control WaveguideTM (DCWTM), this design provides excellent frequency balance in difficult acoustic environments. If necessary, the bass response of the 8030A's can be extended with a Genelec 7050A or 7060A subwoofer. The volume controls on the "slave" loudspeakers should be set fully clockwise. [. . . ] The space adjacent to the amplifier must either be ventilated or sufficiently large to dissipate heat so that the ambient temperature does not rise above 35 degrees Celsius (95°F) Setting the tone controls The frequency response of Genelec 8030A can be adjusted to match the acoustic environment by setting the tone control switches on the rear panel. The controls are "treble tilt", "bass tilt" and "bass roll-off". An acoustic measuring system such as MLSSA or WinMLS is recommended for analyzing the effects of the adjustments, however, careful listening with suitable test recordings can also lead to good results if a test system is not available. Table 1 shows some typical settings in various situations. Figure 4 shows the effect of the controls on the anechoic response. Treble tilt Treble tilt (switch 1) attenuates the treble response above 5 kHz by 2 dB, which can be used for smoothening down an excessively bright sounding system. Bass tilt Bass tilt offers three attenuation levels for the bass response below 1 kHz, usually necessary when the loudspeakers are placed near room boundaries. The attenuation levels are -2 dB (switch 3 "ON"), -4 dB (switch 4 "ON") and -6 dB (both switches "ON"). Bass roll-off Bass roll-off (switch 2) activates high-pass filtering at 85 Hz to complement the low-pass filter on a Genelec 7050A subwoofer. This switch should always be set to "ON" when using the 8030A with 7050A subwoofers. The factory setting for all tone controls is "OFF" to give a flat anechoic response. Positioning the loudspeaker Each 8030A monitor is supplied with an integrated amplifier unit, mains cable and an operating manual. After unpacking, place the loudspeaker in its required listening position, taking note of the line of the acoustic axis (see Figure 1). Connections Before connecting up, ensure that the mains switch is off and the volume control fully counter-clockwise (see Figure 1). Do not connect the loudspeaker to an unearthed mains supply or using an unearthed mains cable. Audio input is via a 10 kOhm balanced female XLR connector labelled "INPUT". An unbalanced source may be used as long as pin 3 is grounded to pin 1 at the unbalanced source connector (see Figure 2). The male XLR "OUTPUT" connector can be used for daisy-chaining up to six 8030A's together or for connecting a Genelec 7050A stereo subwoofer. The volume control attenuates the signal on this output, so the first "master" loudspeaker on a daisy chain can be used to adjust the level on the whole Figure 1: Location of the acoustic axis and front panel controls Figure 3: Control and connector layout on the rear panel of an 8030A. Speaker Mounting Position Flat anechoic response Free standing in a damped room Free standing in a reverberant room Figure 2: Type of cable needed if unbalanced source is used (example shown is RCA output to the XLR input) Near field or console bridge Near to a wall With a 7050A subwoofer Treble tilt OFF OFF OFF OFF OFF See above Bass tilt OFF OFF -2 dB -4 dB -6 dB See above Bass roll-off OFF OFF OFF OFF OFF ON Table 1: Suggested tone control settings for differing acoustical environments Mounting options The 8030A offers several mounting options: The Iso-PodTM (Isolation Positioner/DecouplerTM) vibration insulating table stand allows tilting the loudspeaker for correct alignment of the acoustic axis. The stand can be attached to three mounting points allowing vertical and symmetrical horizontal positioning. [. . . ] Any maintenance or repair of the 8030A unit should only be undertaken by qualified service personnel. Safety considerations Although the 8030A has been designed in accordance with international safety standards, the following warnings and cautions should be observed to ensure Ilpo Martikainen Managing Director 20-April-2004 8030A Operating Manual Figure 4: The curves above show the effect of the `treble tilt', `bass tilt' and `bass roll-off ' controls on the free field response. Figure 5: The curve group shows the horizontal directivity characteristics of the 8030A in its vertical configuration measured at 1m. The lower curve shows the system's power response. SYSTEM SPECIFICATIONS Lower cut-off frequency, ­3 dB: Upper cut-off frequency, ­3 dB: < 55 Hz > 21 kHz CROSSOVER SECTION Connectors: Input: XLR female, balanced 10 kOhm, pin 1 gnd, pin 2 +, pin 3 Output: XLR male, balanced 100 kOhm Pin 1 gnd, pin 2 +, pin 3 Input level for 100 dB SPL output at 1 m: -6 dBu at volume control max Volume control range: -80 dB relative to max output Output signal level is 0 dB relative to input signal level but adjustable by volume control Crossover frequency, Bass/Treble: Treble tilt control operating range: 0 to ­2 dB @ 15 kHz Bass roll-off control operating in a ­6 dB step @ 85 Hz (to be used in conjunction with a 7050A subwoofer) Bass tilt control operating range in ­2 dB steps: 0 to ­6 dB @ 100 Hz The `CAL' position is with all tone controls set to `off ' and the input sensitivity control to maximum (fully clockwise). 3. 0 kHz AMPLIFIER SECTION Bass amplifier output power with an 8 Ohm load: 40 W Treble amplifier output power with an 8 Ohm load: 40 W Long term output power is limited by driver unit protection circuitry. Amplifier system distortion at nominal output: THD < 0. 05 SMPTE-IM < 0. 05 CCIF-IM < 0. 05 DIM 100 < 0. 05 % % % % Free field frequency response of system: 58 Hz ­ 20 kHz (± 2. 0 dB) Maximum short term sine wave acoustic output on axis in half space, averaged from 100 Hz to 3 kHz: @ 1m > 100 dB SPL @ 0. 5m > 106 dB SPL Maximum long term RMS acoustic output in same conditions with IEC weighted noise (limited by driver unit protection circuit): @ 1m > 97 dB SPL Maximum peak acoustic output per pair on top of console, @ 1 m from the engineer with music material: > 108 dB Self generated noise level in free field @ 1m on axis: < 10 dB (A-weighted) Harmonic distortion at 85 dB SPL @ 1m on axis: Freq: 50. . . 100 Hz < 2 % > 100 Hz < 0. 5 % Drivers: Bass Treble 130 mm (5") cone 19 mm (3/4") metal dome Both drivers are magnetically shielded 5. 6 kg (12. 3 lb) Height 299 mm (1113/16") (including Iso-PodTM table stand) Height 285 mm (111/4") (without Iso-PodTM table stand) Width 189 mm (77/16") Depth 178 mm (7") Signal to Noise ratio, referred to full output: Bass > 100 dB Treble > 100 dB Mains voltage: 100, 120, 220 or 230 V according to region ±10 % Idle Full output 10 VA 80 VA Voltage operating range: Power consumption: Weight: Dimensions: Genelec Document D0036R001. 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