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APart MA246 AV receiver
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1. MA246 PROFESSIONAL PUBLIC ADORESS SYSTEM BUTPUT ZONE 1 2 GUTPUT ZONE 3 TOME 4 DUIPUT 5 OUTPUT ZONE un uL 4412 MIC OTA a e Ern dq UI EN ate LF 1 Ew p DUTPUT MORES 2 4 3 4 EUME IA DTP INFOCOAPART AUDIO COM MA246 R MR NO CD EE Main features 246 sets a new standard as a professional 6 zone PA mixing amplifier preamplifier for commercial and industrial applications either as a standalone unit or as the central device in an expandable simple but clever paging system The amplifier is equipped with 4 balanced mic line inputs each with adjustable gain and tone controls and up to 4 line level inputs and an emergency input The 246 has a six level priority system The emergency telephone input has the highest priority and is activated by switch or vox circuitry Its signal goes directly to the main amplifier bypassing any level control accessible at the front of the unit and an attenuator next to the input sets its level Microphone input 1 has the second priority level followed by the mic 2 3 and 4 and finally the line signals music Zones 2 to 6 can be individually volume controlled using the integrated speaker volume controls Please note that zones number 5 and 6 are 70 volt outputs these are compatible with
2. vox position and set the threshold level with VR13 The jumper and level adjustment are located inside the unit on the rear PCB In order to reach them you will need to open the unit For authorized persons only INFOCOAPART AUDIO COM CD EE 8 Emergency input level this is the only level control on the emergency input The emergency signal bypasses all possible level controls the MA246 unit 9 Chime level turn this knob to activate the two tone chime The chime is activated by the priority 11 12 13 14 Mic line 3 this mic has lower priority than mic 2 details see below 16 17 18 19 20 switches from mic line 1 4 Please note that the emergency input switch or vox circuitry does not activate the chime 10 Paging group 1 dipswitches click the dipswitches to the on position for zone 1 to 6 to enable zone 1 to 6 zone group paging with mic 2 4 Connect the GND and PG1 paging group connector on mic 2 3 or 4 to the microphone paging switch This will enable zone group 1 paging e g using our MICPAT 2 unit The dipswitch settings are valid for mic 2 4 inputs only Mic 1 is a higher priority mic and overrides these settings Paging group 2 dipswitches click the dipswitches to the on position for zone 1 to 6 to enable zone 1 to 6 zone group paging with mic 2 4 Connect the GND and PG2 paging group connector on mic 2 3 or 4 to the microphone paging switch This will enable z
3. OPTIONAL MODULE SLOT TO BE USED BY QUALIFIED PERSONEL ONLY 24VDC 24 0 6 COM 40 TOV 100V m TT Wire bridge in case of standalone use INFO APART AUDIO COM CDam EE 12Watts 77 t A ZZ gt gt g 2 Z 2 f P S AN 2 A 7 7 2 zx pan d 2 p J Meeti g roo p 2 I I 2 Pn Eram n 60Watts UN Office floor 2 ZON GN 80Watts AAA A Office floor 1 Toilets USE GA LINE AC 230V 50Hz MADE IN P R C 5 f OUTPUT VOLT Kj 240WATT f 0000000000 MAX 0 6A PRIORITY PROGRAM L 1 a LOUDSPE KERZ OLTPUTS ZONE EMERGENCY INPUT CHIME PAGING GROUPS PAGING INPUT 1 MIC LINE2 MIC LINE3 MIC LINE 4 ANTENNA 20 620 520 20 E2 SGLDUTPUT SGLINPUTPRIOR PRE SELECTI
4. Zone 1 output level this level control sets the output level to the zone 1 preamp output Zone 1 paging led this led lights up when zone 1 is being paged Zone 1 music selector selects the line level input for zone 1 Zone 2 paging led this led lights up when zone 2 is being paged Zone 2 level control this control is used to preset the zone 2 level in relation to the other zones Zone 3 paging led this led lights up when zone 3 is being paged Zone 3 level control this control is used to preset the zone 3 level in relation to the other zones Zone 4 paging led this led lights up when zone 4 is being paged Zone 4 level control this control is used to preset the zone 4 level in relation to the other zones 10 Zone 5 paging led this led lights up when zone 5 is being paged 11 12 13 14 15 16 17 19 20 21 22 24 Zone 5 level control this control is used to preset the zone 5 level in relation to the other zones Zone 6 paging led this led lights up when zone 6 is being paged Zone 6 level control this control is used to preset the zone 6 level in relation to the other zones Level indicators clip limit The protect led lights up during startup during a few seconds or when an error occurs such as overheating or overload The lower green LED will light to indicate that power is present The signal led indicates that a strong signal is sent to the power amp To work within normal condi
5. maintenance are not covered by warranty Mains socket connect the included mains power cord here The mains fuse is also located inside the socket Replace it if necessary with an identical fuse only Backup power input connect the 24 VDC backup power here In case the mains voltage is interrupted the backup power will automatically keep the unit operational Please note that maximum output power of the internal power amp is limited when operating on the emergency supply Priority output 24 VDC is present on this connector when priority is activated You can use the 24 VDC to switch local volume controllers relays Warning maximum 0 6 Do not exceed maximum output current do not short circuit this output and do not apply any foreign voltage to this output WWW APART AUDIO COM CD EE 21 22 23 24 25 26 27 28 29 30 31 32 33 Direct speaker outputs This is the direct amplifier output available 100V 70V low impedance For normal operation leave the 100V wire bridge between 22 and 23 in place The wire bridge connects the internal amp s output to the integrated volume control and speaker switching circuitry External paging amp in connect the 100V output from an external 500 Watt max paging amp here This is usefull in situations where you want to separate certain zones from each other e g some zones will need music only other zones will need paging and music The external amp wi
6. pageable The external paging amp e g PA240P or PA2240BP takes over the pageable zones zone 2 4 in this case while the other zones continue to hear the music without interruption from the paging messages Notes What happens if you use the MA246 as a standalone mixing amplifier without external paging amp The pageable zones 2 4 will hear the paging messages amplified by the internal MA246 power amplifier the non pageable zones 5 6 will be silent Suppose pageable zones 2 4 internal volume controls are set at a very low level or even switched off completely What happens if these zones are paged MA246 will automatically bypass the internal volume controls during paging this means that the page able zones will hear the paging message at full power even if the MA246 s internal volume controls are switched off What about external volume controls If you use additional external volume controls such as our E VOL series be sure to connect the 24 volt priority output from the MA246 to the volume control s 24 V priority input This will bypass the external volume controls allowing paging messages to be heard at full power Practical wiring example when using the PA2240BP as dedicated zone 2 6 paging amp and as ZONE1 WWW APART AUDIO COM CD EE 240watts power amp In this configuration zone1 selected sources will always be amplified by the PA2240BP channel 2 ampli fier Zone 2 6 selected music sources will be amplif
7. 5 zone 5 is 70 volt speaker line output compatible with 100 volt speaker lines Com speaker ground 70 V speaker plus connection If this zone is selected for paging it will become a normal 100 volt line Use this output for your silent zones 3 Loudspeaker output connector zone 4 zone 4 is a 100 volt speaker line output compatible with 100 volt speaker lines Com speaker ground 100 V speaker plus connection 4 Loudspeaker output connector zone 3 zone 3 is a 100 volt speaker line output compatible with 100 volt speaker lines Com speaker ground 100 V speaker plus connection 5 Loudspeaker output connector zone 2 zone 2 is a 100 volt speaker line output compatible with 100 volt speaker lines Com speaker ground 100 V speaker plus connection 6 Zone 1 balanced line level output this is the line level output for zone 1 Connect your optional external zone 1 amplifier here ceu m 7 Emergency input with priority contact the emergency input has highest priority This level can be set with knob 8 only and bypasses ALL other level controls The emergency signal is also present on the preamp out connectors You can activate the emergency input by closing a contact between the 7 F i am R GND and prior connections or alternatively activate the input by setting the automatic vox re A oe Id circuitry Set the internal jumper marked S3 to the Def
8. TUNER MA246R MR only armonic distortion FM band 0 196 at preamp and tuner output requency response FM band O Hz 15 kHz 1 3 dB at preamp and tuner output 0 FM 10 AM ZITI c 3 o a Es n 2 ct D MP3 WMA MA246MR only requency response 20 Hz 20 kHz 0 1 dB at preamp output armonic distortion lt 0 01 at preamp output upported file types CD CDR PCM 16 bit 44 1 kHz MP3 32 320 kbps variable bit rate upported file types USB CARD MP3 32 320 kbps variable bit rate WMA ile system capacity USB CARD FAT32 up to 32 gigabyte APart audio general waranty conditions APart Audio warrants this product to be free of defects in material and workmanship for a period of one year for parts and for a period of one year for labor from the date of original end user purchase This warranty is valid only for the original end user and cannot be transferred During the warranty period APart Audio or one of its authorized service partners shall either repair or replace any product free of charge that proves to be defective on inspection by APart Audio or its authorized service representative All warranty claims must be accompanied by a detailed description of the problem All returns must be sent to APart Audio or an authorized APart Audio repair centre postage prepaid insured and properly packaged Proof of purchase must be presented in the form of a valid invoice or some other positive proof that t
9. a HF ground isolation transformer when connecting the FM antenna input to an active antenna or cable network 14 WWW APART AUDIO COM CD EE Tuner operation 7 s DIGITAL AM FM TUNER 7 SCAN 5 SAVE TUNING MEMORY Display section shows various tuner parameters such as frequency band FM or AM selected frequency and preset number The tuner has 10 AM and 10 FM preset memory locations FM AM selector press to switch between FM or AM band Scan down press shortly to scroll one step down in the frequency band 9 kHz AM 50 or 100 kHz FM Press for about a second to search for the next radio station down the frequency band Scan up press shortly to scroll one step up in the frequency band 9 kHz AM 50 or 100 kHz FM Press for about a second to search for the next radio station up the frequency band Scan button press to scan all memory locations the tuner automatically selects the next memory location every 3 seconds After a full scan the tuner resumes to normal operation You can interrupt the scan cycle by pressing the scan button during the memory scan Save button press this button followed by a numeric button 1 to 5 5 to store a preset in the internal memory E g you want to store the currently selected station in memory location number 1 press the save button followed by the numeric 1 button If you want to save in locations 6 to 10 press the save butt
10. replaced by a rec out output bus Antenna connector 34 for AM wire antenna and FM antenna coax connector Please note that you must use a HF ground isolation transformer when connecting the FM antenna input to an active antenna or cable network 13 INFOCOAPART AUDIO COM CD EE MA246MR Pir ADDRESS SFSTEM o MEAD ATIE r PIT 0 7 E OUTPUT TOKE b amp Hu Be HFA had TS ii 0 55 cl MUSH 2L TRIES T TU NET miedo I Ar T IN OUTPUT TONES 2 3 4 5 6 MIC LINE I ALL CURT Tarn Music selector 3 and 15 have 2 aux source inputs internal tuner and CD MP3 section MA246 has 4 aux source inputs On the left side of the front panel you will find a digital tuner and the CD MP3 player Operation of the tuner and CD MP3 player will be explained later 11 LOUDSPEAKER JONE OUTPUTS 2 1 EMERGENCY INPUT CHIME reet LU rM UU FIM NI UO UTI TE PR RE OL SOL INPUT 4 Mm a a e of pe Te i Ar Difference in MA246MR rear panel layout Aux 3 amp 4 mono input 26 have been replaced by a rec out and tuner output bus Antenna connector 34 for AM wire antenna and FM antenna coax connector Please note that you must use
11. you can use an external amp for all paging tasks MA246 does all the switching and thinking for you The internal amp will be used for background music When a paging message is sent to other zones than zone 2 and 3 zone 2 and 3 will stay connected to the internal amplifier and will continue to enjoy the music All other zones will hear the paging message the 246 will disconnect these zones from the internal amp and will send the paging signal to the ex ternal amp The external amp will feed the signal to the selected zones via the MA246 When paging is finished the zones will automatically be switched back to the internal amp We will show an example of such application in this manual We will use a 2 channel PA2240BP amp and a 246 in an application that would normally use at least twice as much units to do all the switching and signal routing A unique new switching circuit design has been applied to ensure trouble free switching during many years Removable 19 brackets are shipped along with your amplifier The MA246 complies with the CE standards WWW APART AUDIO COM CD EE Front panel gt EM UIRTHNE 2 OUTRE TONS 4 8 OUTPUT nce A lt 2 MA246 rRoressional Pusuic ADORESS SYSTEM m iG 8 MX ug s V V 1 OV Ar T ay 4 Lr d Haag
12. 100 volt speakers but by nature these outputs will have a slightly reduced output level meant for the quiet zones in a multizone system For even more flexibility zone 1 is an independent zone with a separate line level output which turns the 246 into a true 2 zone mixing amp with integrated preamp During paging the corresponding integrated volume control will be automatically bypassed When any priority has been activated integrated 24VDC supply output max 0 6A can activate priority relays of loud speaker attenuators or other devices Even an emergency 24 VDC supply input is present on the unit The supply will automatically keep the amplifier powered when mains power is interrupted Mic input 1 is optimized to be used with our MICPAT 6 a selective paging station 6 zone microphone This mic is the master mic Maximum 5 of these mics can be switched in parallel on this single input Mic input 2 4 are designed to be used with our MICPAT 2 2 zone groups microphone or any other microphone denpending on the application On the MA246 unit you can preset 2 paging groups to be paged with mic 2 4 Please note that it is not possible to connect multiple MICPAT 2 mics on the same input That s not all If you are a professional installer you will appreciate the possibility to use an external amplifier as paging amp Why Suppose zones 2 and 3 should not receive paging messages meaning there should always be background music Then
13. 4 outputs are standard 100 Volt for both speech and back ground music Of course the level of BGM in each zone can be adjusted or even switched off paging only by the zone level controls on the front panel Using an external paging and or zone 1 amplifier The external paging amplifier must have at least the same power as the internal MA246 amplifier By con necting an external paging amp you have the possibility to create independent zones with different sound levels with a very simple setup You can use our PA240P for this purpuse or even the PA2240P 2 chan nel amp The second PA2240P channel can be used as zone 1 amplifier e g to power the speakers in a warehouse or production facility where music source and level requirements are different from the other zones such as office areas boardrooms showroom Another possibility is to use the PA240P as paging amp and use the PA2240P in bridge mode in zone 1 this offers you 480 watts in zone 1 The benefits are clear less wiring easy installation flexible routing possibility to have zones with extremely high power demands controlled by one central unit the MA246 Zone connection examples Zone 1 production facility and parking area independent source selection 480 watts from PA2240BP in bridge mode Zone 2 4 office area showroom and boardroom from internal amp pageable Zone 5 6 70 volt outs toilets hallway the most silent zones in this case powered by internal amp non
14. 46R MR only uner out MA246MR only re amp out zone 2 6 hantom power re amp out zone1 V balanced on euroblock 100 ohm output impedance aging amp out V balanced on euroblock 100 ohm output impedance riority out 4VDC max 0 6A hime tone chime activated by contact closure INPUTS MIC LINE 1 balanced input on euroblock ensitivity mic line mpedance 00 ohm mic line hantom power requency response Muting activated by contact 8 VDC 4048 priority according to priority table Ce O 3 N B o c 3 5 A e 2 v 5 m 4 D pf Music selector zone 1 elz 79 Bis 3 lt V 8 lt g WWW APART AUDIO COM CD EE EMERGENCY INPUT transformer coupled balanced input on euroblock Sensitivity V Impedance 600 ohm S N gt 80dB Frequency response 100Hz 20 kHz 1 3dB Activated by contact or vox selectable inside the unit Emergency has highest priority and mutes all other inputs by more than 40 dB The signal is also present on the preamp out HB AUX 1 2 unbalanced stereo input on RCA Signal is internally mixed to mono AUX 4 unbalanced mono input on RCA Sensitivity 500mV mpedance 22 kilo ohm gt 80dB 40 25 kHz 1 3dB impedance RR Kilo hrm Frequency response 4 5 98 requency response
15. A PRIORITY PROGRAM L ISK OF ELECTRIC SHOCK 1 DM BRIDGED BRIDGED 70W 480W 100V 480W 24V BACK UP rl PRIOR PRIOR PRIORITY PROGRAM CHANNELS POWER COM 40 35 50 70 100 24v OUTISWITCH INPUT X INPUT A ud LEVEL LEVEL BASS TREBLE 9 49 0 40 240Watts PARAR NV GR SE EG RS 005 Production hall WWW APART AUDIO COM CD EE MA246R BUC FYSTTM 7 TAT 2 Oe ee 4 OUTPUT ZONE 5 OP ZOME 8 pa DAL Bu Wisi eB PUR un ai LL Lis i LR Difference in MA246R front panel controls Music selector 3 and 15 have 3 aux source inputs internal tuner MA246 has 4 aux source inputs On the left side of the front panel you will find a digital tuner Operation of the tuner will be explained later EMEXGENCT INPUT CHIME PAGING GROUPS PAGING INPUT 1 Lu FEM Uu TEM Vi ANTENNA F APart ms 123458123454 rr SOLA gt H et ORE POWER E ae ee ae a LLL fae ooooH Py CX 18A ws Qui Difference MA246R rear panel layout Aux 4 mono input 26 has been
16. ICPAT 6 connection MICPAT 6 must be connected to the PAGING INPUT 1 connect the RJ45 plug to the selective paging station RJ45 connector The second wire the one with the blank leads must be connected to the SGL in put euroblock screen black to GND blue to brown to The MIC1 level can be set using the controls on the rear only You can connect up to 5 pcs MICPAT 6 units to this input Use one or more RJ45 split units to connect the RJ45 connectors from the mics to the RJ45 connector The SGL input of all MICPAT 6 s must be connected in parallel on the SGL input euroblock INFOCOAPART AUDIO COM 10 CD EE Speaker ZONE connections Zone 1 amplifier connection e g 480 watts in zone 1 Connect the signal output zone 1 balanced on euroblock to the external amplifier s signal input e g our PA2240BP in bridge mode providing 480 watts into 100 volt Zone 1 has independent line source selec tion and volume control The benefit of the 70 volt and 100 volt output zones The 70 volt outputs from zone 5 and 6 are fully compatible with 100 volt speakers In silent zones such as toilets or showroom areas the 100 volt speakers usually play at very low levels even far below 70 volt However when paging is needed in these zones full power at 100 volt might be required Zone outputs 5 6 are specially designed for any application where a clear louder speech paging is required above the normal background music level Zones 2 3
17. ON SELECKIVE D ial GND GND T PGI PG2 STATION A am BELGIUM DESIGN Z hus 1 123456123456 5 T 5 2 B 102 9 999595 less ol RZONE ON NOLAN SEE MANUAL ra E Q I O JN mexormscmucsHocK 7 Do MOT OPEM OPTIONAL MODULE SLOT TUNER AUXZ AUXT Jh pranon H FM AvoIncN S BEUSED BY QUALIFIED PERSONEL ONLY AMPIN OUT IN 5 ON 28 15 Etol Erol 2NVDC 2 COM 4 70V 100v TOINPUT PAGING MODE WL CY NT E E 4 4 Us co og fe AO suam EES Bree ola CD 1 P615 P615 Pat 1236 0 9 9 dieto es VA NIA I OH aa MADE N J FUSE 4 WITHEX AMP PREAMP WPRC 230 507809 T63AL250V s ENFERNAL PAGINGAMPLIFIERIA24GMRONI QUT QUT e TP e APart BELGIUM PA2240BP BACKUP PRIOR PRIOR PRIORITY ROBRAM CHASE INPUT FOR ISIN PROFESSIONAL PUBLIC ADDRESS AMPLIFIER 40 as so 70 1 24v ouT switcH INPUT INPUT 27 75 sro 27 oa Wo LEVEL LEVEL BASS TREBLE 48 429 0 0 amp 1 7 l GND LIFT 6666666 p 666606060 6 gt O dB dB dB NETS BRIDGE MAX 0 6
18. er Please note that in some cases the music level in non pageable zones can slightly vary during paging When you use an external paging amp the internal power amp will see less speakers at its output because these speakers are switched to the external amp s output during paging This can result in music levels varying depending on the speaker load variation This is not a malfunction This effect will increase depending on the speaker load variation You can avoid such situations by powering the sensitive zones with an external amplifier connected to zone 1 line level output WWW APART AUDIO COM EE Rear panel DOO 42 13 44 15 16 x COME ROT TOA AX EMERC CYINPU C E N PAGING INPUT 1 mec TEM MIC zl TIL IESU S BD 12 LY ad ANS 2 PAGING STATION ML A mer mer 56 e p amp LUIS d maani 6 POWER CM TEM TU UY ari TESTI C OOOO ES n owl 18 DEDEDE 69690969208 29 30 87 3293 17 1 Loudspeaker output connector zone 6 zone 6 is 70 volt speaker line output compatible with 100 volt speaker lines Com speaker ground 70 V speaker plus connection If this zone is selected for paging it will become a normal 100 volt line Use this output for your silent zones 2 Loudspeaker output connector zone
19. euroblock Both mic and line levels are supported For operation with micpat 6 switch to line level operation with the mic line selector switch located above the euroblock This mic has priority level 2 mic line 2 input this mic has priority level 3 for details about the mic channel strip see below mic line 3 input this mic has priority level 4 for details about the mic channel strip see below mic line 4 input this mic has priority level 5 for details about the mic channel strip see below GND screw Note please do not remove the cover labeled OPTIONAL MODULE SLOT This is meant for future expansion modules not available at this moment INFOCOAPART AUDIO COM CD EE Microphone connections Status dipswitches set to when using a microphone with a push button s connected to the paging contact s Set to mix when you want the speech to be mixed with the music this is usefull for mics without pushbuttons or switches GAIN TONE dB S a MIC LINE 3 CT L i We iit to 5 5G Phantom power set to on if your microphone needs phantom power such as condenser mics Voltage supplied is 18 VDC Signal input balanced input on euroblock This connector accepts balanced and unbalanced mic line signals For use with unbalanced mics or line level signals connect the source GND to both GND and connect the unbalanced hot wire to This can be usefull when connecting the receiver output from a wireles
20. gher than that required to drive equipment to full output e Do not run the output of any amplifier back into another input case of mal function this device should be serviced by qualified service personnel only MA246 is developed by Audioprof nv Lanteernhofstraat 90 BE 2100 Deurne BELGIUM WWW APART AUDIO COM
21. he product is within the warranty period This warranty does not cover any defects caused by faulty installation damage due to abuse neglect alteration or attempted repair by unauthorized personnel system mismatch insufficient maintenance or any damage caused by excessive mechanical stress and is strictly limited to failures arising during normal use that are due to defects in material or workmanship in the product Under no circumstance APart Audio or one of its service centres can be held responsible for the loss of data caused by a repair or exchange operation APart Audio reserves the right to change or improve the design and or specification of the product at any time without prior notice warranty period may be different for your country Please consult your local dealer INFOCOAPART AUDIO COM NO Co CD EE Safety Instructions Please check the carton box for any kind of damage on reception of the goods In case of a damaged carton please contact your dealer before opening the carton I Danger Exposure to extremely high noise levels may cause a permanent hearing loss Individuals vary considerably to noise induced hearing loss but nearly everyone will lose some hearing if exposed to suf ficiently intense noise for a sufficient amount of time Therefore it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplifier be protected by hear i
22. ied by the MA246 internal power amplifier During paging the zones that must hear the paging messages are automatically disconnected from the MA246 internal amplifier and will be switched to the PA2240BP channel 1 amplifier The internal MA246 power amplifier will continue to play the music in the non paged zones SETUP MA246 R MR MA246 R MR MA246 R MR 246 R MR PAGING ZONE1 ZONE1 PAGING AMPLIFIER AMPLIFIER AMPLIFIER 5 ZONE INDIVIDUAL YES YES YES YES VOLUME CONTROL WITH PRIORITY BYPASS 6 ZONE OPERATION WITH YES YES INDEPENDENT ZONE1 SOURCE SELECTION SELECTIVE PAGING WITH OUT BACKGROUND MUSIC INTERUPTION Selective paging without any BGM in any zone is possible using the MA246 R MR only however in this case you will have to turn the zone 2 to 6 front volume control to the off position In case a zone is being paged the MA246 R MR will bypass the volume control causing the paging message to be heard in the selected zone s If you want BGM and selective paging without music interruption in the non paged zones please use an external paging amp PA240P PA2240P From the factory there is no wire bridge as shown in the picture That s because we want to encourage you to use the MA246 as a switching centre in high quality BGM and paging systems where all zones are individually pageable without interrupting the BGM in the non paged zones Most mixing amps from other brands don t offer you this luxury
23. levels in different zones relative to each other and to switch off certain zones temporarily Zone 5 and 6 outputs are 70 volts speaker line level outputs these are fully compatible with 100 volt speakers but will produce a maximum output level about 3 dB lower than normal 100 volt lines Use these outputs in the most silent zones When using an external paging amp all speaker outputs from the selected zones are switched to maximum volume 100 volt during paging in other words the zone volume controls from zone 2 6 are bypassed A maximum of 180 watts speaker load is allowed per zone with a total maximum of 240 watts for all zones when using the internal MA246 power amplifier only Do not overload the amplifier If the amplifier is overloaded it will result in overheating the amplifier Check your total speaker load with an impedance or wattmeter before operating the amplifier Minimum total speaker impedance all zones combined is calcu lated like this 100 V x 100 V 240 W 41 66 ohms Please note that impedance can NOT be measured with a normal multimeter you need a special impedance meter or 100 volt line wattmeter for this purpose In case you need more speakers and or more power use an external power amplifier for this purpose The MA246 has a separate preamplifier circuit for zone 1 and a combined pre out amp in connector for all other zones allowing you to increase the total output power without the need of a supplementary preamplifi
24. ll take care of the power amplification of the paging messages The MA246 takes care of all switching and signal processing You will wonder why the external amplifier can be more than 240 watts Suppose you have a lot of speakers connected to zone 5 and 6 these are the 70 volts zones by default When powered by the internal MA246 amp the load on the internal amplifier is only half of the power compared to the power in 100 volt When you switch these zones to the external paging amp these silent zones will become 100 volt zones meaning that the external amp will see double the power compared to the internal amplifier External paging amp pre out the line level signal for the external paging amp is present on this balanced euroblock Paging mode switch When pushed in you can use an external paging amp The external amp takes care of the paging messages When not pushed in all signals are amplified by the MA246 internal amp only Power amp in pre out here you can connect an external signal processor e g an equalizer In all other cases leave the signal bridge in place or there will be no output from the power amplifier You can use a Y connector here to feed the line signal to an external device Aux 3 aux 4 inputs mono inputs aux 3 and aux 4 Aux 2 aux 2 stereo input stereo signals are internally mixed to mono Aux 1 aux 1 stereo input stereo signals are internally mixed to mono Paging mic 1 input for mic 1 on balanced
25. memory card operation 13 Prog button press this button to enter program mode Press a second time to quit program mode or press stop to clear all program steps Programs are not memorized after powering on and off If you enter program mode PROGRAM is displayed in the display the numeric characters show folder number track number and program step number Enter program mode select a folder and track and press shuffle to enter the selected folder track The last last characters show the program WWW APART AUDIO COM CD EE step Select another folder track and press shuffle to confirm the program step When you press shuffle twice the selected track will be played twice After programming all steps press play to start playing the program In order to clear the program press program or stop to clear the program steps Programs can not be stored or recalled 14 Mute button press once to mute the CD MP3 press again to unmute 15 Play pauze press to start playback press again to pauze playback 16 Stop eject press to stop playback or to eject the CD media if present 17 Power button press to power on or off the CD MP3 player By default the CD MP3 unit must be powered on manually after powering on the MA246MR unit Note the CD player will play normal audio CD s and CDR s containing PCM audio files or wav files MP3 s or WMA files The USB and CARD reader will only read MP3 s or WMA files ID3 tag and folder names are not dis
26. ng protection while installing or operating this unit Read all documentation before operating your equipment e Keep all documentation for future reference Save the carton and packing material even if the equipment has arrived in good condition e Should you ever need to ship the unit use only the original factory packing Do not spill water or other liquids into or on the unit Make sure power outlets conform to the power requirements listed on the back of the unit Do not use the unit if the electrical power cord is frayed or broken Have gain controls on amplifiers turned down during power up to prevent speaker damage if there are high signal levels at the inputs Do not connect the inputs outputs of amplifiers or consoles to any other voltage source such as a battery mains source or power supply regardless of whether the amplifier or console is turned on or off Power down amp disconnect units from mains voltage before making connections Do not use the unit near stoves heat registers radiators or other heat producing devices Do not operate equipment on a surface or in an environment which may distort the normal flow of air around the unit If the unit is used in an extremely dusty or smoky environment the unit should be periodi cally blown free of dust Do not remove the cover Removing the cover will expose you to potentially dangerous voltages Do not drive the inputs with a signal level hi
27. on first then the 5 button followed by a numeric button 1 to 5 gt preset 6 button 5 followed by button 1 Numeric button 1 press to select or save preset 1 8 9 Numeric button 2 press to select or save preset 2 Numeric button 3 press to select or save preset 3 10 Numeric button 4 press to select or save preset 4 11 Numeric button 5 press to select or save preset 5 12 Numeric button 5 press this button first to select or save preset stations 6 to 10 followed by a numeric button 1 to 5 Alternatively during manual frequency scan you can press this button to select a half frequency step e g FM steps are 100 kHz by default press the 5 button to step up 50 kHz in the FM band Note after powering on the MA246R MA246MR main unit the tuner is automatically powered on 15 INFOCOAPART AUDIO COM 16 CD EE CD MP3 operation REPEAT SHUFFLE lt FOLDERD gt TRACK D PLAY gt STOP MUTE PAUSE EJECTA POWER 1 Display section shows various parameters such as track number folder number if present elepased track time CD mode MP3 mode 2 CD slot insert the CD carefully in this CD slot Do not apply force you might damage the loading mechanism If the unit refuses to accept a CD press the stop eject button repeatedly to reset the loading mechanism 3 Repeat press this button to alternate between repeat 1 repeat one track repeat folder or repeat all Repeat mode is shown in the displa
28. one group 2 paging e g using our MICPAT 2 unit The dipswitch settings are valid for mic 2 4 inputs only Mic 1 is a higher priority mic and overrides these settings Selective paging connector on RJ45 connect the MICPAT 6 RJ45 connector to this connector for selective zone paging This is NOT a LAN or computer network connector so NEVER connect this to any other network Connection details Orange white cable zone 1 pin 1 Orange cable zone 2 pin 2 Green white cable zone 3 pin 3 Blue cable zone 4 pin 4 Blue white cable zone 5 pin 5 Green cable zone 6 pin 6 Brown white cable GND pin 7 Brown cable 24V pin 8 Mic 1 level tone adjustment adjust the mic 1 level and tone here For use with MICPAT 6 set the mic line push button to the line position Mic line 2 this mic has lower priority than mic 1 details see below Mic line 4 this mic has lower priority than mic 3 details see below Fan section the internal cooling fan operates when the amp temperature rises above 55 C Keep this area clear and clean Note the fan is a mechanical device and the area around it needs te be kept clean at all times If the unit is used in a dusty environment regularly clean out the entire amplifier with clean and dry compressed air Dust may collect inside the unit and prevent proper cooling causing overheating eventually causing malfunction Replace the fan if necessary Failures caused by improper
29. played For maximum compatibility avoid media containing other than the supported file types INFOCOAPART AUDIO COM CD EE Technical Specifications PECS MA246 MA246R MA246MR ENERAL SPECS Output power rating RMS 40 watt requency response 100 volt out 0 25 kHz 1 3dB otal harmonic distortion 0 396 6dB 1kHz requency response line output zone 1 0 30 kHz 1 3dB ass tone control zone 2 6 8 8dB 100Hz reble tone control zone 2 6 8 8dB 10kHz one control mic line 1 4 rom 100Hz 43dB 10kHz 6dB to 100Hz 9dB 10kHz 4dB N ratio 20Hz 20kHz o m 0 N ine in gt 80dB mic in gt 65dB ndicator leds imiter activity 1 x red led one controls usic selector zone 2 6 N A amp ia 3 E sss zh D zm 3 5 a v v Slo lt sm vs EI x RR D zzvii ource controls 3 c lt o 2 2 m n aster level control zone 2 6 aster level control zone 1 mergency level control back panel ower supply Mains fuse rating mergency supply fuse riority output fuse Weight net MA246 MA246R MA246MR hipping weight MA246 MA246R MA246MR 2 Dimensions 30 w x 88 h x 360 d 2 HE 19 brackets included hipping dimensions _ _ _ Operating temperature and humidity one 1 2 6 inimum load impedance all zones summed 41 66 ohms eparate speaker out ec out MA2
30. s microphone Connection example using an unbalanced source GAIN TONE dB 0 C Mie Lo MIC LINE 3 Alternatively you can connect the unbalanced signal ground to the connector and the hot wire to the connector By leaving the ground connection unused you can avoid a lot of ground loop problems such as hum excessive noise GAIN TONE dB 0 C UNE Me Lo MIC LINE 3 Unbalanced MIC LINE signal connection WWW APART AUDIO COM CD EE Priority levels Paging switch connector for selecting paging in zone 1 or zone 2 group MIC1 will always override the zone group preselection Paging group 1 connect GND to PG1 using a switch Do not apply external voltages to these contacts Paging group 2 connect GND to PG2 using a switch Do not apply external voltages to these contacts Note MICPAT 2 is equipped with 2 switches for paging 2 zone groups and can be connected to the euroblock connector The mic line inputs all have different priority levels according to the table below 6 PRIORITY LEVELS 1 EPA Me MICPAT 2 connection MICPAT 2 or other paging mic can be connected to MIC LINE 2 4 depending on the priority level required see priority level table Connect red wire to white wire to shield yellow wire to GND black wire to PG1 blue wire to PG2 You can preset the paging groups 1 and 2 using the dipswitches at the rear of the MA246 The paging group settings are equal for mic 2 to 4 M
31. tions the volume indicator should be kept under OdB 100 At 2 5dB a limiter will be activated This red LED indicates that the auto gain circuit keeps the level below clipping This is NOT a clip indicator but an indication of the automatic gain control Set your max levels so that the limiter led never lights up Zone 2 6 music selector selects the line level input for zones 2 6 Music bass tone control Music treble tone control Music level control turn this level knob to adjust the music level relative to the microphone signals Music muted by priority led this red led lights up when the music is muted by any priority signal or priority contact When this led lights up there is 24 VDC 0 6A available on the rear connector Mic Line 2 level control turn this knob to adjust the mic line 2 level relative to other signals Mic Line 3 level control turn this knob to adjust the mic line 3 level relative to other signals Mic Line 4 level control turn this knob to adjust the mic line 4 level relative to other signals Master level control turn this knob to set the global level in zones 2 6 Power switch switch mains power on and off This switch turns off the amplifier when connected to the mains AC supply Please note that this switch does not switch the amp off when operating from a 24 VDC emergency power supply INFOCOAPART AUDIO COM CD EE Important information Zone 2 6 level controls are used to preset
32. y 4 Shuffle press once to activate the shuffle function The unit will play a randomly selected track To exit shuffle mode press the button once again Shuffle mode is shown in the display 5 Folder press this button to select the previous folder This button has no function when no folders are present on the media MP3 CD USB or CARD slot 6 Folder gt gt press this button to select the next folder This button has no function when no folders are present on the media MP3 CD USB or CARD slot 7 Track lt lt press once short to select the previous track keep pushing to search backward in the track currently playing 8 Track gt gt press once short to select the next track keep pushing to search forward in the track currently playing 9 USB slot insert your USB memory stick here Please note that an external USB hard disk may not work on these slots File system recognized is FAT32 maximum memory size is up to 32 gigabytes Some USB sticks don t allow direct memory access These will not work on the MA246MR 10 IR eye infrared receiver eye receives IR signals from the optional IR remote This remote controls the CD MP3 player only 11 MMC SD card slot push in the card gently metal contacts first pointing down Push the card in until you hear a click Push the card again to eject File system recognized is FAT32 maximum memory size is up to 32 gigabytes 12 Select CD USB CARD press this button to select CD USB or
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