8260A Operating Manual
Contents
1. 100 200 500 1k 2k 5k 10k 20k Hz Figure 10 The curves above show the effect of the Bass Tilt Treble Tilt Desktop Low Frequency and Bass Roll Off controls on the free field response of the 8240A Genelec Oy 8250A dBr vs freq Hz 17 Jan 06 Ap 5k 10k 20k Hz Figure 12 The curves above show the effect of the Bass Tilt Treble Tilt Desktop Low Frequency and Bass Roll Off controls on the free field response of the 8250A Genelec Oy 8351A dBr vs freq Hz 20 Nov 2014 Ap DESKTOP LF 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 14 The curves above show the effect of the Bass Tilt Treble Tilt Desktop Low Frequency and Bass Roll Off controls on the free field response of the 8351A Genelec Oy 8240A horizontal off axis response level dBr vs freq Hz 17 Jan 06 E 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 11 The upper curve group shows the horizontal di rectivity characteristics of the 8240A measured at 1 m The lower curve shows the system s power response Genelec Oy 8250A dBr vs freq Hz 17 Jan 06 Q 15 or2. 20 50 5k Figure 17 The upper curve group shows the horizontal di rectivity characteristics of the 8260A measured at 1 m The lower curve shows the system s power response 8240A vertical plane directivity normalized with on axis a aS 125 250 500 1 000 2000 4000 8000 16000 Frequency Hz Figure 19 8240A vertical directivity plot 8250A vertical plane directivity normalized with on axis 125 250 500 1000 Frequency Hz Figure 21 8250A vertical directivity plot GENELEC 10 8351A June2014 C horizontal plane directivity normalized with on axis 1000 2000 4000 8000 Frequency Hz Figure 22 8351A horizontal directivity plot 8260A horizontal plane directivity normalized with on axis 250 500 1000 2000 Frequency Hz 4000 8000 Figure 24 8260A horizontal directivity plot Genelec Oy 8260A 5 5k Figure 26 8260A on axis free field response up to 40 kHz 10k 20k Hz dBr vs freq Hz 12 Jan 11 40k 8351A June2014 C vertical plane directivity normalized with on axis 1000 2000 4000 8000 Frequency Hz 16000 Figure 23 8351A vertical directivity plot 8260A vertical plane directivity normalized with on axis Frequency Hz Figure 25 8260A vertical directivity plot GENELEC SPECIFICATIONS 8240A 8250A 8351A 8260A Drivers Bass 165 mm 6 in 205 mm 8 in
3. such as near field monitoring mobile vans broadcast and TV control rooms multichannel sound systems and home studios The Minimum Diffraction Enclosure MDE advanced Di rectivity Control Waveguide DCW and Minimum Diffrac tion Coaxial MDC technologies provide excellent frequency balance even in difficult acoustic environments Amplifiers The amplifier unit is mounted in the rear of the monitor enclosure The unit incorporates special circuitry for driver thermal overload protection Variable input sensitivity allows accurate level match ing to console output section Setting Up the GLM Control Network Although the 8240A 8250A 8351A and 8260A can be used without the GLM software and control network they only reach their full potential when set up and calibrated using the GLM software The setup is fast and consists of the following steps 1 Runa CAT5 RJ45 cable from the monitor control network to the next monitor See Figure 1 2 Run the final cable to control network input of the GLM Adapter device 3 Connect the GLM Adapter device to your computer USB connector The cable is a part of the GLM User Kit 4 Place the Genelec measurement microphone at the listen Q m Zz m ez m ig s E LISTENING POSITION Figure 1 GLM control network cabling ing location of the engineer on a stand with the microphone pointing upwards and the microphone top at the height of the engineers e
4. clipping in the power amplifier and thermal overload of the power amplifier or drivers thermal protection has activated an error is detected in the AES EBU audio data If a red warning light appears turn the analog source down If the levels are already modest and a digital signal is being used GENELEC ACOUSTIC 8240A h 240 mm 9 7 16 in 8250A h 290 mm 11 1 2 in 8351A h 235 mm 9 1 4 in 8260A h 448 mm 17 5 8 in Figure 3 The location of the acoustic axis is on the cen terline of the monitor at the given height h The acoustic axis of the 8351A and 8260A is located at the center of the coaxial driver Figure 5 Recommended distances from a single wall to the front baffle of free standing monitors Correct green and not recommended red ensure that there are no bit errors in the AES EBU digital audio data Mounting Considerations Align the Monitors Correctly Place the monitors so that their acoustic axes are aimed towards the listening position see Figure 3 Vertical placement is prefer 4 Figure 4 Symmetrical layout and keeping the acoustic axis clear from obstructions minimizes reflection surfaces and maintains accurate localisation because reflections are sym metrical Figure 6 Recommended monitor positioning for 5 1 multi channel audio reproduction able as it minimises acoustical cancellation problems around the crossover frequency Maintain Symmetry Check that th
5. 240A and 8250A enclosure is an M10x10 mm threaded hole which GENELEC Figure 7 System Level rotary control SWITCH BASS TREBLE 1 ROLL OFF TILT Figure 8 Switch Group 1 can be used for securing the monitor to its base Do not use this thread for mounting the monitor on a microphone stand which has a 3 8 UNC thread A wide variety of ceiling and wall mounts are available through your Genelec dealer Setting the Input Sensitivity The monitor level sensitivity functions for both analog and digital input The sensitivity can be matched by adjusting the rotary Lev el control together with the System Level switches located in the switch group 2 switches 6 and 7 The switches provide attenua tion levels of 10 dB sw 6 ON 20 dB sw 7 ON and 30 dB both switches ON The combined attenuation ranges from 0 to 42 dB Functions On Switch Group 1 Tone Controls Switch group 1 the upper switch group comprises the tone controls that can adjust the frequency response of the system in stand alone mode to match the acoustic environment Please note that the GLM software allows a much more versatile and precise set of controls to be used and supports the fully automatic system alignment feature the Genelec AutoCal Use the tone control switches on the monitor only if GLM is not avail able for the system calibration The controls are labelled TREBLE TILT BASS TILT BASS ROLL OFF and DESKTOP T
6. A only GENELEC Stand alone user interface level control Stand alone user interface switch groups 1 and 2 Analog input connector Digital Thru connector Digital input connector Figure 2 Connectors and controls on the back panel of a 8260A The 8351A is similar 8240A and 8250A share the same layout but without the 12 V trigger voltage connector MAINS INPUT Connector Connect the mains supply to this connector DIGITAL IN AES EBU Connector Use this female XLR connector for AES EBU formatted digital audio input signals This input is selected automatically when a valid digital audio signal is present and overrides the analog in put Depending on the digital hardware transmission of a 192 kHz sample rate is achieved using a double speed single channel cable interface This is called dual wire mode In this case one cable per channel is used and no channel selection is required Dual wire mode is automatically detected by the input stage If the digital source device has a volume fader that controls the digital level it may be advantageous to lower the level control either on the computer interface or on the monitors back panel controls which in turn will force the use of more of the digital bit resolution in the volume control If the digital inputs are used all audio outputs are referenced to 0 dBFS digital Full Scale the largest level that may be represent ed in the AES EBU signal These mon
7. Dual 8 x 4 in 255 mm 10 in Midrange n a n a 120 mm 5 in Coax 120 mm 5 in Coax Treble 19 mm in metal dome 25 mm 1 in metal dome Al cone Al cone 19 mm in Coax 19 mm in Coax Al dome Al dome Free field frequency response of system 41 Hz 23 kHz 32 Hz 23 kHz 32 Hz 35 kHz 23 Hz 40 kHz 6 dB 6 dB 6 dB 6 dB Accuracy of frequency response 48 Hz 20 kHz 38 Hz 20 kHz 38 Hz 20 kHz 29 Hz 20 kHz 1 5 dB 1 5 dB 1 5 dB 1 dB Maximum peak SPL output per pair 2 115 dB SPL 2 120 dB SPL 2 121 dB SPL 2 123 dB SPL on top of console at 1 m with music material Maximum short term sine wave SPL output at from 100 Hz to 3 kHz from 100 Hz to 3 kHz from 100 Hz to 3 kHz from 100 Hz to 3 kHz 1m on axis in half space averaged as specified 2 C dB SPL 2 lt lt dB SPL 2111 aaa SPL 2 113 dB SPL Crossover frequency 3k kHz 1 48k kHz 470 Hz 2 6kHz Hz 2 6 kHz 490 Hz 2 6 kHz Self generated noise level in free lt 10 dB lt 10 dB lt 5 qB lt 5 dB field 1 mon axis A weighted Input signal Analog 1 XLR female 10 kOhm input load impedance AES EBU single wire and dual wire 1 XLR female conforms to IEC 60958 4 Output Thru signal AES EBU single wire and dual wire 1 XLR male conforms to IEC 60958 4 Digital audio Word length 16 24 bits Sample rate 32 192 kHz Analog input level for 100 dB SPL at 1 m 6 dBu Control network Type proprietary GLM network Connectio
8. ES EBU cable Turning both switches off mutes the monitor When two channels are selected 6 dB of attenuation is automatically applied to avoid overloading the monitor If the AES EBU cable is operated in dual wire mode the moni tor detects this situation automatically and the channel selection switches have no effect Driver Mute These two switches allow you to mute the treble driver marking TW and bass driver marking WF independently This may be useful to diagnose if a transducer is faulty On the 8351A and 8260A the marking TW is replaced with COAX and this switch mutes both the treble and midrange of the coaxial driver unit System Lvl These switches allow scaling down of the monitor output The signal sent to the Thru output connector is not affected The switches are additive for example 30 dB attenuation is achieved by turning on the 10 dB and 20 dB switches The effect of these switches is combined with the effect of the rotary level adjustment control This results in total possible attenuation of 42 dB 30 dB by the system level switches and another 12 dB by the rotary control Using the 7000 Series Analog Subwoofers with SAM Monitors Please follow the steps below to integrate an analog subwoofer into a system of SAM monitors e Connect cables carrying analog audio to the 7000 Series analogue subwoofer first e Connect the subwoofer outputs to the analog in
9. GENELEC Operating Manual 8260A 8351A 8250A and 8240A 0090004 OCU CC LOCC COC TOEIEOEOC CCC OCU EECECCE COC EC COCO CE EEOCEEC OEE CECE CECCECCOCE CE SEELU CEC CULL GENELEC Introduction Congratulations and a thank you for the purchase of this Genel ec SAM system All Genelec SAM systems are designed to in tegrate easily into the digital production environment There are several ways to configure and operate SAM systems for a wide variety of high quality audio applications The SAM monitors also have analog inputs making them versatile and intelligent replacements for standard analog monitors This manual addresses the setup and use of the 8240A 8250A 8351A and 8260A SAM monitors in stand alone mode without the Genelec Loudspeaker Manager GLM and the proprietary Genelec monitor control network Use with the GLM is de scribed in the GLM System Operating Manual System Genelec 8240A 8250A 8351A and 8260A are designed for precise monitoring of 24 bit 192 kHz AES EBU digital audio sig nal or line level analog audio signal They are fully compatible with Genelec Loudspeaker Manager GLM and the proprietary Genelec monitor control network and Genelec 7260A 7270A and 7271A SAM Subwoofers but can also be used indepen dently of these The 8240A 8250A 8351A and 8260A feature high SPL output low colouration and broad bandwidth in a small enclosure size They are suitable for a wide variety of tasks
10. TV technician for help Modifications not expressly approved by the manufacturer could void the users authority to operate the equipment under FCC rules Safety Considerations Although the 8240A 8250A 8351A and 8260A have been de signed in accordance with international safety standards to en sure safe operation and to maintain the monitor under safe op erating conditions the following warnings and precautions must be observed e Servicing and adjustment must only be performed by a certified Genelec service The monitor enclosure must not be opened e Do not use this product with an unearthed mains cable or a mains connection without the protective earth contact as this may lead to personal injury To prevent fire or electric shock do not expose the unit to water or moisture e Do not place any objects filled with liquid such as vases on the monitor or near it Note that the amplifier is not completely disconnected from the AC mains service unless the mains power cord is removed from the amplifier or the mains outlet Free flow of air behind the monitor is necessary to maintain sufficient cooling e Do not obstruct airflow around the monitors WARNING These monitors are capable of producing sound pressure levels in excess of 85 dB which may cause permanent hearing dam age GENELEC Genelec Oy 8240A dBr vs freq Hz 17 Jan 06 Ap BASS TILT Sa a wy fii ee BASS ROLL OFF
11. USA Phone 1 508 652 0900 Fax 1 508 652 0909 Email genelec usa genelec com In Sweden please contact Genelec Sverige Ellipsvagen 10B P O Box 5521 S 141 05 Huddinge Phone 46 8 449 5220 Fax 46 8 708 7071 Email info genelec com www genelec com In China please contact Beijing Genelec Audio Co Ltd Room 101 1st floor Building 71 B33 Universal Business Park No 10 Jiuxiangiao Road Chaoyang DistrictBeijing ChinaPhone 86 10 5823 2014 Post code 100015 Email genelec china genelec com
12. alogue on www genelec com or your local distributor dealer for up to date information Compliance to FCC Rules This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions e This device may not cause harmful interference and e This device must accept any interference received including interference that may cause undesired operation Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable pro tection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the in structions may cause harmful interference to radio communica tions However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is en couraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna GENELEC e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio
13. ange AW WA oad Figure 13 The upper curve group shows the horizontal di rectivity characteristics of the 8250A measured at 1 m The lower curve shows the system s power response Genelec Oy 8351A dBr vs freq Hz 20 Nov 2014 E 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 15 The upper curve group shows the horizontal di rectivity characteristics of the 8351A measured at 1 m The lower curve shows the system s power response Genelec Oy 8260A dBr vs freq Hz 12 Jan 11 Ap C 7 Li f HN Actes F 20 50 100 200 500 4k 2k 5k 10k 20k Hz Figure 16 The curves above show the effect of the Bass Tilt Treble Tilt Desktop Low Frequency and Bass Roll Off controls on the free field response of the 8260A 8240A horizontal plane directivity normalized with on axis 4000 2000 4000 8000 16000 Frequency Hz Figure 18 8240A horizontal directivity plot 8250A horizontal plane directivity normalized with on axis 250 500 1000 2000 4000 8000 Frequency Hz Figure 20 8250A horizontal directivity plot GENELEC Genelec Oy 8260A dBr vs freq Hz 12 Jan 11
14. ar in normal working position The microphone is a part of the GLM User Kit 5 Run the microphone cable to the microphone input in the GLM Adapter device 6 Download GLM software at the Genelec web site www genelec com Install the GLM software 7 Follow the GLM software instructions to measure and set up your monitors 8 If you plan to not use a computer for controlling the moni tors use the GLM software to write the setting into the moni tors Store the Settings Using the Monitors in Stand Alone Mode When the monitors are not connected to a Genelec monitor con trol network they operate in the stand alone mode However set tings made with the Genelec Loudspeaker Manager software can be saved into each monitor and applied even when the network is disconnected by setting switch 1 STORED MANUAL CON TROL on switch group 2 of each monitor to position STORED All issues concerning use with the network are explained in detail in the System Operating Manual provided with the GLM Loud speaker Manager software kit Connections Each monitor is supplied with a mains cable one 5 m GLM net work cable and an operating manual Before connecting up en sure that the mains switch is off Mains power switch GLM Control Network connectors Mains input connector 8260A DSP TRI AMP canine MONITORING SYSTEM MAGNETICALLY SHIELDED MADE IN FINLAND www genelec com E e 12V Remote connector 8260
15. considered Operating Environment These monitors are designed for indoor use only The permissa ble ambient temperature is 15 35 degrees Celsius 50 95 F and permissable relative humidity between 20 and 80 Humid ity condensation on the product is not allowed during use If the product has been stored or transported in a cool environment and then taken into a warm room it must be allowed to warm up completely before connecting to mains power Sufficient cooling for the amplifier and functioning of the reflex port must be ensured if the monitor is installed in a restricted space such as a cabinet or integrated into a wall structure The surroundings of the monitor must always be open to the listening room with a minimum clearance of 5 centimeters 2 behind above and on both sides of the monitor The space adjacent to the monitor must either be ventilated or sufficiently large to dis sipate heat so that the ambient temperature does not rise above 35 degrees Celsius 95 F Mounting Options The vibration insulating Isolation Positioner Decoupler lso Pod table stand allows tilting of the monitor for correct align ment of the acoustic axis The stand can be attached to three mounting points allowing vertical and symmetrical horizontal positioning Genelec 8240A 8250A 8351A and 8260A can be fitted to Konig amp Meyer monitor mounts on two sets of M6x10 mm threaded holes on the back of the enclosure On the base of the 8
16. e monitors 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 monitors are placed at an equal distance from the centerline See Figure 4 Minimise Reflections Acoustic reflections from objects close to the monitors like desks cabinets computer monitors etc can cause unwanted coloura tion and blurring of the sound image These can be minimised by placing the monitor clear of reflective surfaces For instance put ting the monitors on stands behind and above the mixing console usually gives a better result than placing them on the meter bridge Symmetrical positioning of the reflective objects is also important in order to maintain a balanced soundstage See Figure 4 Low Frequency Cancellations In general when a monitor s front baffle is more than 0 3 meters 1 foot away from the wall behind the monitor a reflection from this wall can cause a cancellation of low frequencies and hence reduction of bass output Distances between 1 and 2 2 meters 3 7 ft should be avoided See Figure 5 As a rule of thumb the lower the low frequency cut off the further away the monitor must be placed from the wall in order to avoid this phenomenon Distances to the ceiling and other walls may be shorter than the distance to the wall behind a monitor Reflections from these sur faces may be important and should also be
17. he factory settings for these con trols are all OFF to give a flat anechoic response Note that these controls have no effect when switch 1 STORED MANUAL CON TROL on switch group 2 is set to STORED or when the monitor is connected to the Genelec monitor control network The use of an acoustic measurement system is recommended to analyze 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 Start adjustment by setting all switches 5 GENELEC Monitor Mounting Position Treble Bass Bass Desktop Tilt Tilt Roll Off dB Flat anechoic response Free standing in a damped room Free standing in a reverberant room Near field on a reflective surface Table 1 Suggested Tone Control settings for some typical moni tor placement positions 2 4 to OFF position Measure or listen systematically through the different combinations of settings to find the best frequency bal ance See Table 1 for some typical settings Bass Roll Off Control Bass Roll Off control switches 1 and 2 attenuates its output near the cut off frequency Attenuation levels of 2 dB sw 1 ON 4 dB sw 2 ON or 6 dB both switches ON can be se lected Bass Tilt Control The Bass Tilt control switches swiches 3 and 4 offer three at tenuation levels for the bass response below 800 Hz usually necessary when the monito
18. itors produce 100 dB SPL at 1 meter in free space for a digital input signal of 30 dB FS DIGITAL THRU AES EBU Connector This male XLR carries an unaltered copy of the digital signal fed into the DIGITAL IN AES EBU connector It can be used for daisy chaining up to four monitors together ANALOG IN Connector Use this connector for analog audio signals The maximum input level is 7 0 dBu RMS on models 8240A and 8250A and 22 0 dBu RMS on models 8351A and 8260A When A D converter input clip occurs the front panel light turns momentarily red indi cating the overload condition CONTROL NETWORK Connectors Use these RJ 45 sockets to connect the monitor to the propri etary Genelec Loudspeaker Manager GLM network only This connector is not Ethernet LAN compatible Do not connect to Ethernet LAN 12 V REMOTE Connector 8260A only You can set up remote controlled powering up and down of the 8260A with 12 V voltage connected to this connector The mini mum current needed to actuate this function is 70 mA Front Panel Warning Light Normally the light on the front panel of a SAM monitor is green indicating that the monitor is in normal operational mode The overload light red is activated by several events exceeding the maximum input range of the analog input the digital input level is less than 0 1 dB from the digital full scale exceeding the output capacity of the power amplifier
19. n 2 RJ45 CAT5 cables GLM software frequency response adjustment Notch filters 2 LF and 2 HF 4 LF and 2 HF Shelving filters 2 LF and 2 HF 2 LF and 2 HF System calibration AutoCal GLM manual Stand alone Bass amplifier output power 90 W 150 W 150 W 150 W Midrange amplifier output power n a n a 120 W 120 W Treble amplifier output power 90 W 120 W 90 W 120 W Long term output power is limited by driver protection circuitry Power consumption Idle 14 W 17 W 20 W 26 W Full output 110 W 170 W 290 W 330 W Dimensions Height 350 mm 13 in 433 mm 17 in 433 mm 17 in 570 mm 227 y Width 237 mm 9 in 286 mm 117 in 286 mm 11 in 357 mm 14 in Depth 223 mm 8 in 278 mm 10 in 278 mm 10 in 347 mm 13 in Height with Iso Pod 365 mm 14 in 452 mm 1797 in 452 mm 17 in 593 mm 233 in Weight 9 4 kg 20 8 Ib 14 6 kg 32 Ib 19 kg 42 Ib 27 5 kg 60 5 Ib The notch and shelving filters adjustments AutoCal and GLM manual system calibration features are part of the Genelec Loudspeaker Manager GLM software 11 Genelec Document D0081R001b Copyright Genelec Oy 11 2014 All data subject to change without prior notice GENELEC International enquiries Genelec Olvitie 5 FIN 74100 lisalmi Finland Phone 358 17 83881 Fax 358 17 812 267 Email genelec genelec com In the U S please contact Genelec Inc 7 Tech Circle Natick MA 01760
20. puts of the SAM monitors e Connect the GLM Control Network to the monitors e Make a System Setup in GLM It will consist of only monitors as this is all the network can see so suitable Rapid Cabling Presets are Stereo Pair Analog and 5 0 Surround System Analog e Run AutoCal and review the results to check for large dips at or above 85 Hz Move the monitors and repeat AutoCal if there is a problem e Press Finish then in the Main Page select Menu Store Acoustic Settings to All Online Monitors and close GLM e For each SAM monitor turn it off select Stored on the back of each monitor to activate the internal Acoustic Settings and then turn it on again e To set the phase control on the subwoofer connect the Center channel output of the subwoofer to the monitor to be used to align phase e Follow the instructions in the subwoofer user manual for setting phase and level Maintenance No user serviceable parts are to be found within the monitor en closure Any maintenance or repair of the monitor should only be undertaken by a certified Genelec service Guarantee Genelec 8240A 8250A 8351A and 8260A are supplied with a two year guarantee against manufacturing faults or defects that might alter the performance of the monitors Refer to supplier for full sales and guarantee terms Accessories A wide selection of accessories is available for Genelec moni tors Consult the Accessories Cat
21. rs are placed near room boundaries The attenuation levels are 2 dB 4 dB and 6 GB Desktop Low Frequency Control The desktop low frequency control switch 5 attenuates the bass frequencies around 160 Hz by 4 dB This feature is designed to compensate for the boost often occurring at this frequency range when the monitor is placed upon a meter bridge table or similar reflective surface Treble Tilt Control Treble Tilt control switches 6 and 7 allows adjusting the treble response above 5 kHz by 2 dB 2 dB or 4 dB which can be used for correcting an excessively bright or dull sounding system or to compensate for high frequency level loss if the monitor is placed behind a screen Functions On Switch Group 2 Stored Manual Ctrl MANUAL CTRL refers to controlling the monitor using the con trols on the monitor s back panel The STORED refers to using settings stored inside the memory of the monitor These settings are made using the GLM and the GLM Control Network There is additional functionality compared to that offered by the room response correction switches on the back panel STORED J AES EBU CH JDRIVER MUTE J SYSTEMLVL SWITCH WF TW 10 20 2 A Bi RA dB ON ON OFF OFF SUM AAND B Figure 9 Switch Group 2 AES EBU CH This selects the audio channel s available on the AES EBU cable to be reproduced by the monitor Turning both switches on reproduces the sum of the two channels on the A
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