User manual GENELEC 8020A

[. . . ] Combined with the advanced Directivity Control Waveguide TM Positioning the loudspeaker Each 8020A 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. The axes of all loudspeakers should converge at ear height at the listening position (see Figure 1). Connections Before connecting up, ensure that the volume control potentiometer on the front panel is turned fully counter-clockwise to the stand-by setting. Connect the loudspeaker to an earthed mains connection with the supplied mains cable. [. . . ] Figure 4 shows the effect of the controls on the anechoic response. Treble Tilt Treble Tilt control (switch 1) attenuates the treble response of the loudspeaker at frequencies above 5 kHz by 2 dB, which can be used for smoothening down an excessively bright sounding system. Bass Tilt Bass Tilt control offers three attenuation levels for the bass response of the loudspeaker below 2 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 7050B or 7050A subwoofer. This switch should always be set to "ON" when using the 8020A with these subwoofers. The factory setting for all tone controls is "OFF" to give a flat anechoic response. Always start adjustment by setting all switches to "OFF" position. Measure or listen systematically through the different combinations of settings to find the best frequency balance. Mounting considerations Align the loudspeakers correctly Always place the loudspeakers so that their acoustic axes (see figure 1) are aimed towards the listening position. Only vertical placement is preferred, 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 centerline. Minimise reflections Acoustic reflections from objects close to the loudspeakers like desks, cabinets, computer monitors etc. can cause unwanted colouration 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 and tilting them down to point the acoustic axes to ear level at the listening position usually gives a better result than placing the loudspeakers on the meter bridge. Safety considerations Although the 8020A has been designed in accordance with international safety standards, the following warnings and cautions should be observed to ensure safe operation and to maintain the loudspeaker under safe operating conditions: · Servicing and adjustment must only be performed by qualified service personnel. · Do not use this product with an unearthed mains cable or an unearthed mains connection as this may compromise electrical safety. · Do not expose the loudspeaker to water or moisture. Do not place any objects filled with liquid, such as vases on the loudspeaker or near it. · This loudspeaker is capable of producing sound pressure levels in excess of 85 dB, which may cause permanent hearing damage. [. . . ] The lower curve shows the system's power response. SYSTEM SPECIFICATIONS Lower cut-off frequency, ­3 dB: Upper cut-off frequency, ­3 dB: < 65 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 7050B 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 Free field frequency response of system: 66 Hz ­ 20 kHz (± 2. 5 dB) Maximum short term sine wave acoustic output on axis in half space, averaged from 100 Hz to 3 kHz: @1m > 96 dB SPL @ 0. 5 m > 102 dB SPL Maximum long term RMS acoustic output in same conditions with IEC weighted noise (limited by driver unit protection circuit): @1m > 95 dB SPL Maximum peak acoustic output per pair on top of console, @ 1 m from the engineer with music material: > 105 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 < 3 % > 100 Hz < 0. 5 % Drivers: Bass Treble 105 mm (4") cone 19 mm (3/4") metal dome Both drivers are magnetically shielded 3. 7 kg (8. 1 lb) Height 242 mm (91/2") (including Iso-PodTM table stand) Height 230 mm (91/16") (without Iso-PodTM table stand) Width 151 mm (6") Depth 142 mm (55/8") Weight: Dimensions: AMPLIFIER SECTION Bass amplifier output power with an 8 Ohm load: 20 W Treble amplifier output power with an 8 Ohm load: 20 W EC Declaration of Conformity This is to certify that the Genelec Monitoring System 8020A conforms to the following standards: Safety: EN 60065: 2002 / IEC 60065:2001 7th Edition EMC: EN 55020 : 2002 + A1 : 2003 EN 55013: (2001) EN 61000-3-2 (2000) EN 61000-3-3 (1995) The product herewith complies with the requirements of The Low Voltage Directive73/23/EEC, EMC Directive 89/336/EEC and 93/68/EEC Long term output power is limited by driver unit protection circuitry. Amplifier system distortion at nominal output: THD < 0. 08 SMPTE-IM < 0. 08 CCIF-IM < 0. 08 DIM 100 < 0. 08 % % % % Signal to Noise ratio, referred to full output: Bass > 95 dB Treble > 95 dB Mains voltage: 100, 120, 220 or 230 V according to region ±10 % Idle Full output 5 VA 50 VA Voltage operating range: Power consumption: Signed: Position: Date: Ilpo Martikainen Managing Director 4-May-2005 8020A Operating Manual Genelec Document D0034R001 Copyright Genelec Oy 5. 2005. All data subject to change without prior notice www. genelec. com In China please contact: Genelec China Representative Office Soho New Town, 88 Jianguo Road D-1504, Chaoyang District Beijing 100022, China Phone +86 10 8580 2180 Fax +86 10 8580 2181 Email genelec. china@genelec. com International enquiries: Genelec, Olvitie 5 FIN-74100, Iisalmi, Finland Phone +358 17 83881 Fax +358 17 812 267 Email genelec@genelec. com In Sweden please contact Genelec Sverige Ellipsvägen 10B P Box 5521, S-141 05 Huddinge . O. [. . . ]