Genelec AOW312B User's Manual
Contents
1. output power Treble amplifier short term output power AMPLIFIER SECTION AOW312B 180 W 4 Ohm load 120 W 8 Ohm load 120 W 8 Ohm load Long term output power is limited by driver unit protection circuitry Slew rate Amplifier system distortion at nominal output THD SMPTE IM CCIF IM DIM 100 Signal to Noise ratio referred to full output Bass Midrange Treble Mains voltage Voltage operating range Power consumption Idle Full output CROSSOVER SECTION Input connector XLR female Input impedance Input level for 100 dB SPL output 1 m Input level for maximum short term output Subsonic filter Ultrasonic filter Crossover frequency Bass Mid Mid Treble Crossover acoustical slopes Crossover level control operating range in 1 dB steps Bass Mid Treble Bass roll off control in 2 dB steps Bass tilt control in 2 dB steps 80V us IA IA JA JA OF OO f On aS gt 100 dB gt 100 dB gt 100 dB 100 200 V or 115 230 V nominal 10 50 W 300 W AOW312B pin 1 gnd pin 2 pin 3 10 kOhm variable from 6 to 6 dBu variable from 22 to 10 dBu for 116 dB SPL 1m 18 dB octave below 35 Hz 12 dB octave above 25 kHz 420 Hz 3 2 kHz 18 24 dB octave from 0 to 6 dB from 0 to 6 dB from 0 to 6 dB from 0 to 8 dB 35 Hz from 0 to 8 dB 80 Hz The CAL position is with all tone controls set to off and input sensitivity control to maximum Genelec Document D0075R001a C2. AOW312B Operating Manual Genelec AOW312B Active On Wall Loudspeaker GENELEC GENELEC Genelec AOW312B Active On Wall Loudspeaker System The Genelec AOW312B is a three way active loudspeaker system designed for medium sized high quality home theater applications This system excels as side or rear channels when mounted on wall It also offers mini mum intrusion into designed spaces while providing high sound pressure levels required when employing Genelec s large three way systems for left center and right positions and HTS6 series subwoofer in rooms greater than 260 m 9000 cu ft Designed as an active loudspeaker system each AOW312B system contains an individu ally matched RAM4 amplifier unit with multi ple power amplifiers active crossover filters and protection circuitry The unique Directivity Control Waveguide DCW technology developed by Genelec provides extremely stable and accurate imag ing and frequency balance even in difficult acoustic environments Furthermore versa tile and precise crossover controls allow for accurate matching of the loudspeakers sys tems to different room acoustic conditions The AOW312B is fixed to the wall via unique mounting brackets which isolate and suspend the enclosure vertically The brack ets also allow the enclosure to be mounted with a 15 degree angle offset to the wall to facilitate energy focus at desired listening locations All elec
3. W312B loudspeaker Figure 2 AOW312B loudspeaker iew ncl re side view f enclosure front view enclosure side vie Table 1 Recommended cable thicknesses for different lengths of cable LED CONNECTOR NOT USED SIGNAL INPUT CONNECTOR LOUDSPEAKER CONNECTOR MAINS CONNECTOR Screen XLR Source Speaker Figure7 RCA to XLR cable REMOTE CONTROL AND MAINS VOLTAGE SELECTOR LED ON OFF SWITCHES REMOTE CONTROL CONNECTOR Figure 5 RAM4 amplifier rear panel layout SENSITIVITY BASS TILT AND ADJUSTMENT ROLL OFF SWITCHES MAINS SWITCH BASS MID AIR FILTER AND TREBLE LEVEL SWITCHES Figure 6 RAM4 amplifier front panel layout 3 This loudspeaker is capable of producing sound pressure levels in excess of 85 dB which may cause permanent hearing damage 4 A free flow of air through the amplifier is necessary to maintain sufficient cooling Do not obstruct airflow through the amplifier 5 To prevent fire or electric shock do not expose the unit to water or moisture Do not place any objects filled with liquid such as vases on or near the loudspeaker or the amplifier 6 Note that the amplifier is not completely disconnected from the AC mains service unless mains plug or appliance coupler of the amplifier is disconnected from the mains outlet Ensure that the plug or appliance coupler of the amplifier is readily operable and easily accessible for doing thi
4. d a free space of at least 5 cm 2 is required before the port The RAM4 amplifier is shipped with a pair of rack ears to provide fitting into a 19 rack and a set of feet for placement on a shelf or table Sufficient cooling for the RAM4 amplifier must be ensured The cooling fan on the amplifier back panel draws air through the filter on the left side panel and blows the warmed air to the space behind the ampli fier The airflow must not be obstructed Note also that the space behind the amplifier must either be ventilated or sufficiently large to dissipate heat so that the ambient tempera ture does not rise above 35 degrees Celsius 95 F Connections Each loudspeaker is delivered with two Speakon 8 pole cable connectors There is one 8 pole Speakon output marked LOUD SPEAKER CONNECTOR on the amplifier and two inputs one on each side on the loudspeaker enclosure Use only one of these inputs at any time The inputs may not be used for daisy chaining several loudspeakers or connecting two amplifiers to a single loud speaker The 4 pole Speakon output LED CONNECTOR on the amplifier is not used with the AOW312B Measure the required length of 8 pole cable and secure the connectors on it pin to pin See Table 1 below for recommended cable thicknesses The whole cable should have an outside diameter of 8 to 20 mm 5 16 to 13 16 to fit in the Speakon connector Alternatively pre terminated lengths of cable are availabl
5. e from Genelec Be sure not to mix the amplifier loud speaker pairs when installing multiple loud speakers at the same time Each amplifier and loudspeaker packed together are calibrated together for optimal performance and marked with the same identification number Before connecting up ensure that the mains switch is off Check that the mains voltage selector on the amplifier back panel is correctly set to your local voltage Audio input is made 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 7 Once connection has been made the loud speakers are ready to be powered up Access to the front panel controls The decorative front panel of the RAM4 amplifier is held in place by guide pins and two magnets To remove the panel pull it straight out Setting the input sensitivity Adjustment of the input sensitivity of each RAM4 amplifier can be made to match the output of the decoder or other source by use of the input sensitivity control on the amplifier front panel A small screwdriver is needed for the adjustment The manufac turer default setting for this control is 6 dBu fully clockwise which gives an SPL of 100 dB 1m with a 6 dBu input level To get the full output level from the AOW312B an input level of 10 dBu is needed at this setting Autostart and remote control The RAM4 amplifier unit is equipped with an Autostart function w
6. he response curve required If more than one switch is set to ON within one switch group the attenuation value is no longer accurate Maintenance The air filter on the left side of the RAM4 amplifier must be cleaned every six months Remove the decorative front plate and pull the filter out Check the filter and replace it with a new one if any damage or brittleness can be found If the filter is in a good condi tion carefully clean it with compressed air No other serviceable parts are to be found within the loudspeaker enclosure or the amplifier unit Any maintenance or repair should only be undertaken by qualified serv ice personnel Safety considerations Although the AOW312B loudspeaker and RAM4 amplifier have been designed in accordance with international safety stand ards to ensure safe operation and to main tain safe operating conditions the following warnings and cautions must be observed 1 Servicing and adjustment must only be performed by qualified service personnel The amplifier must not be opened 2 Donot use the amplifier with an unearthed mains cable or unearthed mains connection as this may lead to personal injury GENELEC 400 15 3 4 220 8 21 32 181 7 1 8 ACOUSTIC AXIS Figure 3 AOW312B loudspeaker enclosure top view Figure 4 AOW312B loudspeaker enclosure top view at 15 angle a N 49 N N N bo N 1672 65 13 32 1360 53 17 32 Figure 1 AO
7. hich automati cally turns the amplifier to standby mode if an input signal has not been detected for approximately thirty minutes and back to on mode when the signal returns The function can be deactivated by turning the AUTOSTART dip switch on the back panel of the amplifier to OFF The amplifier mode can also be switched by a remote control unit connected to the respec tive inputs on the amplifier back panel Two pairs of connectors are provided 1 and 2 fora 12 V DC type remote control and 3 and 4 for an external switch or relay type control Do not connect two remote controls to the loud speaker at the same time Activate the func tion by turning the REMOTE CONTROL dip switch to ON Note that the remote control function overrides the AUTOSTART dip switch function Setting the tone controls The acoustic response of the system should be adjusted to match the acoustic environ ment The adjustment is done by setting the five tone control switch groups bass tilt bass roll off bass level mid level and treble level on the amplifier front panel The manufactur er s default settings for these controls are All Off to give a flat anechoic response Figure 8 shows the effect of the controls on the ane choic response Always start adjustment by setting all switches to the OFF position Then set only one switch per group to the ON posi tion to select t
8. opyright Genelec Oy 5 2008 All data subject to change without prior notice www genelec com GENELEC International enquiries In the U S please contact In China please contact In Sweden please contact Genelec Olvitie 5 Genelec Sverige FIN 74100 lisalmi Finland Phone 358 17 83881 Fax 358 17 812 267 Genelec Inc 7 Tech Circle Natick MA 01760 USA Phone 1 508 652 0900 Fax 1 508 652 0909 Beijing Genelec Audio Co Ltd Jianwai SOHO Tower 12 Room 2306 39 East 3rd Ring Road Chaoyang District Phone 46 8 449 5220 Beijing 100022 China Fax 46 8 708 7071 Phone 86 0 5869 7915 Fax 86 10 5869 7914 Email info genelec com Ellipsv gen 10B P O Box 5521 S 141 05 Huddinge Email genelec genelec com Email genelec usa genelec com
9. rol facili tates central power mode switching The 3U RAM4 remote amplifier module is ready to be installed into a 19 equip ment rack Neutrik Speakon connectors are included to facilitate wiring and system con nection Signal cables are not provided with the system See section Connections below for selecting signal cables Installation Once unpacked place the loudspeaker enclosure upright in its required position taking note of the line of the acoustical axis see Figure 2 Attach the mounting brackets to the wall with suitable screws for carrying the loudspeaker s weight of 43 kgs 95 Ibs The maximum tilt angle for the loudspeaker enclosure is 5 degrees Do not install the enclosure horizontally The mounting brackets are pre drilled for enclosure alignment angles of 15 0 and 15 If necessary you can drill new holes to the brackets for exact loudspeaker alignment The rubber isolators provided must be placed between the brackets and loudspeaker enclo sure It is recommended that the surroundings of the loudspeaker are covered with about 10 cms 4 of rockwool or similar damping material If the loudspeaker is covered with a cloth it must be acoustically transparent and a free space of at least 2 cm 3 4 left between the front baffle and the cloth The reflex port of the loudspeaker enclosure is located on the left side of the enclosure see Figure 2 The airflow from the port must not be obstructed an
10. s Guarantee This product is supplied with a two year guar antee against manufacturing faults or defects that might alter its performance Refer to sup plier for full sales and guarantee terms EC Declaration of Conformity This is to certify that the Genelec AOW312B Active On Wall Loudspeaker conforms to the following standards Safety EN IEC 60065 1998 6th 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 Directive 73 23 EEC EMC Directive 89 336 EEC and 93 68 EEC Signed Ilpo Martikainen Position Chairman of the Board Date 12 May 2008 AUDIO PRECISION AOW312 ANEC LEVEL dBr vs FREQ Hz 04 AUG 06 Ap ROLL OFF NGE LEVEL 100 10k 20k Figure 8 The curves above show the effect of the bass mid and treble level controls and the bass tilt and bass roll off controls on the free field response of the AOW312B measured at 2 m AUDIO PRECISION AOW312 ANEC LEVEL dBr vs FREQ Hz 04 AUG 06 Ap 20 100 1k o Figure 9 The upper curve group shows the horizontal directivity characteristics of the AOW312B in its ver
11. tical configuration measured at 2 m The lower curve is a 1 6 octave power response measurement derived from 144 individual directivity measurements GENELEC AOW312B Operating Manual SYSTEM SPECIFICATIONS Lower cut off frequency 3 dB Upper cut off frequency 3 dB Free field frequency response of system Maximum short term sine wave acoustic output on axis in half space averaged from 100 Hz to 3 kHz Maximum long term RMS acoustic output in same conditions with IEC weighted noise limited by driver unit protection circuit Maximum peak acoustic output per pair in half space with music material Self generated noise level in free field 2 m on axis Harmonic distortion at 95 dB SPL at 1 m on axis Drivers Bass Midrange Treble Weight Loudspeaker Amplifier Loudspeaker dimensions Height Width Depth Amplifier dimensions Height Width Depth AOW312B lt 35 Hz gt 22 kHz 37 Hz 21 kHz 2 5 dB 1m gt 116 qB SPL 1 m gt 107 dB SPL 2 m gt 123 dB lt 15 dB A weighted freq lt 100 Hz lt 1 freq gt 100 Hz lt 0 5 305 mm 12 cone 130 mm 5 cone 25 mm 1 metal dome 43 kg 95 Ib 12 kg 27 Ib 1500 mm 59 1 16 400 mm 15 3 4 175 mm 6 7 8 133 mm 5 1 4 3 U 483 mm 19 350 mm 13 4 5 Note that the cable connectors require additional gt 100 mm 4 space behind the amplifier Bass amplifier short term output power Midrange amplifier short term
12. tronics are factory calibrated as a single unit thus eliminating the effects of component tolerances and ensuring consist ent quality and long term reliability Low frequencies are reproduced by a 305 mm 12 bass driver with a low frequency extension to 35 Hz The 130 mm 5 mid range cone and 25 mm 1 HF driver are loaded into the proprietary Directivity Control Waveguide The RAM4 amplifier unit contains an active crossover the ideal method for dividing an input signal between the driver units allow ing the overall response of the system to be optimized to an extent impossible with a passive system Variable input sensitivity as well as a balanced XLR line level input con nector provide easy connection and accurate level matching to the preamplifier or surround decoder The bass midrange and treble amplifiers of the RAM4 produce 180 W for the low frequency driver and 120 W each for the mid range and HF drivers The amplifiers are designed to operate at very low THD and IM distortion values and are capable of driving the AOW312B to peak output levels in excess of 124 dB SPL at 2m with music material Like all Genelec HT models the AOW312B system incorporates special circuitry for driver overload and amplifier thermal protection as well as an Autostart function for automatic switching between Standby and On power modes A connector for 12 V trigger or exter nal switch or relay type remote cont
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