Myryad M Series MA 500 Amplifier
Contents
1. The further fuse is the operative one and should be checked If it has failed replace it with the nearer spare fuse If this too fails then return the amplifier to your dealer for service e UK version only The fuse in the mains plug has failed Check and replace if necessary Sound in one channel only e Loudspeaker cable pulled loose Check all connections both at the loudspeakers and amplifier e Interconnect cable pulled loose or making poor contact Check and if necessary un plug and re plug all relevant cables e Amplifier produces less power than normal First level temperature protection activated see page 6 Reduce volume or improve ventilation to allow amplifer to cool Amplifier fails to respond to My Link remote commands from e g MDP 500 Preamplifier Processor e My Link cable is loose or not connected Check connections on all linked units Loud buzz or hum e Interconnect cable pulled partially out of its socket e Defective interconnect cable Incorrect operation some functions not working e Control processor latched Switch off POWER on rear panel and wait for about one minute Then switch POWER on Normal operation should resume SPECIFICATIONS Five channels driven Continuous average power output lt 0 05 THD 20Hz 20KHZ 0 0 ce ence eee eee e eer ee a eeees 8Q 100W EE ys bide yaa E E E E adlecwad ad aakabe Seaoabe 40 150W IHF dynamic power 8Q 150W 40 2402. output of the amplifier is reduced until the temperature falls to a safe level The amplifier s gain is unaffected so this first level protection will probably have no audible effect If the higher temperature threshold is exceeded the loudspeaker relays are opened muting all five channels as described above INTRODUCTION The Myryad MA 500 Power Amplifier has been designed to offer a combination of high quality sound reproduction and simple yet elegant styling It can be used to provide power for high quality Home Home Cinema systems of the highest Cinema or music surround systems when quality partnered by a suitable surround e Use in a multi room setup possibly preamplifier processor such as Myryad s together with other MA 500s to deliver MDP 500 It can also be used in install high power high quality audio to a situations as a high quality high powered number of different rooms with distribution amplifier minimal crosstalk between channels e Stereo bi amplifier operation with an MP 100 Stereo Preamplifier the MA 500 delivering 2 x 100 watts 8Q into each loudspeaker one MA 500 channel unused MA 500 applications include e Use in conjunction with the MDP 500 Digital Preamplifier Processor delivering five channels at 100 watts into 8Q in The MA 500 has unbalanced line inputs plus directly linked line outputs for each channel all on high quality gold plated RCA phono sockets Loudspeaker outputs are provided by a pa
3. 000 OPERATING YOUR SYSTEM STANDBY FRONT PANEL CONTROLS 1 Standby When the amplifier is plugged into a live wall socket and the POWER switched is turned ON it will power up in standby mode and the LED Light Emitting Diode in the STANDBY button will glow red In this mode the internal circuitry of the amplifier is powered up but disabled so that it consumes very little power and is isolated by relays at its outputs When the STANDBY button is pressed the amplifier circuitry will be activated and the LED will flash blue After about four seconds delay the loudspeaker outputs will be connected to the amplifier and the LED in the STANDBY button will glow blue continuously When the STANDBY button is pressed again the amplifier will be returned to standby mode The LED in the STANDBY button will change back to red PLEASE NOTE WHEN THE POWER AMPLIFIER IS REMOTELY ACTIVATED FROM ANOTHER UNIT THERE MAY BE A BRIEF DELAY BETWEEN THE CLOSING OF THE OUTPUT RELAYS OF THE TWO UNITS THIS IS NORMAL AND NO CAUSE FOR CONCERN CAUTION WHEN IN STANDBY MODE THE INTERNAL CIRCUITRY OF THE MA 500 IS STILL LIVE SO ALL SAFETY PRECAUTIONS MUST BE FOLLOWED LOUDSPEAKER OUTPUT PROTECTION AND MUTING When the amplifier is in standby mode the loudspeaker output terminals are isolated from the amplifier by a high quality relay When the amplifier is first switched on from standby mode the loudspeaker outputs remain disconnect
4. ADY MADE LEADS BE USED WHERE POSSIBLE For correct imaging it is important that all the loudspeakers are wired in phase To ensure correct phasing wire the black terminal on the amplifier to the black or terminal on the loudspeaker The red terminal on the amplifier should be wired to the red or terminal on the loudspeaker The MA 500 s five amplifier channels are numbered 1 to 5 and all are identical They may be assigned in a variety of ways in Home Cinema or multi room systems For convenience of installation in Home Cinema applications the channels are also marked as follows channel 1 left front channel 2 centre channel 3 right front channel 4 left surround channel 5 right surround However if desired the channels may be re assigned in any other way that is preferred In each case make sure all loudspeakers are wired in phase as described above 6 Line inputs The line inputs can be driven from the line outputs of any good quality processor or preamplifier such as the Myryad MDP 500 or MP 100 or any other suitable line level source The five channels are numbered 1 to 5 and also named for Home Cinema use see above High quality RCA to RCA phono to phono interconnects should be used 7 Line outputs Each channel s line output is directly connected to its line input without buffering The line output allows power amplifiers to be daisy chained so t
5. AGAIN IF THE LIQUID IS ANYTHING BUT WATER AND OR ALCOHOL A QUALIFIED SERVICE TECHNICIAN SHOULD EXAMINE THE AMPLIFIER BEFORE IT IS USED AGAIN DO NOT PLACE NAKED FLAMES SUCH AS LIGHTED CANDLES ON THIS PRODUCT DO NOT REMOVE THE COVER OR ATTEMPT TO MODIFY OR REPAIR THE AMPLIFIER YOURSELF REFER ALL SERVICING TO A QUALIFIED TECHNICIAN ACCESSORIES Your Myryad Power Amplifier is supplied complete with the following accessories e My Link interconnect 0 5m RCA RCA e Separate mains power cord to suit country of sale SETTING UP YOUR SYSTEM CHANNEL 5 CHANNEL 4 RIGHT SURROUND LOUDSPEAKER LEFT SURROUND LOUDSPEAKER CHANNEL 3 CHANNEL 2 RIGHT FRONT CENTRE LOUDSPEAKER LOUDSPEAKER LEFT FRONT CHANNEL 1 fi LOUDSPEAKER MYLINK REMOTE TRIGGER 3 5mm JACK TIP SLEEVE 4 5V 24V DC REAR PANEL CONNECTIONS 1 Power inlet Before making any connection check that the mains voltage setting printed on the rear panel is the same as your local mains supply Plug the female socket end of the power cord into the power inlet on the rear of the amplifier Plug the male plug end of the cord into a live wall socket or a suitable heavy duty extension cable UK version The mains plug is supplied fitted with a 13A fuse It should only be replaced with a fuse of the same rating 13A which complies with BS1362 2 Power switch Press one side of this rock
6. Myryad Systems Ltd 2 Piper s Wood Waterberry Drive Waterlooville PO7 7XU Tel 44 0 23 9226 5508 Fax 44 0 23 9223 1407 info myryad co uk For further information please contact Myryad direct or visit www myryad co uk STANDBY i a MYRYA D MA500 Five Channel Power Amplifier Owner s manual MA 500 Five Channel Power Amplifier i ae MYR YA D CONTENTS e Introduction 3 e Installation and safety notes 3 e Accessories 3 e Rear panel diagram e Power inlet e Power switch BS BR A A e My Link input output e Remote trigger control input output e Loudspeaker outputs e Line Inputs e Line Outputs e Front Panel Controls Nn Oo wu wo MN ua e Standby switch e Loudspeaker output protection and muting 6 e Trouble shooting guide 7 e Specifications 7 TROUBLE SHOOTING GUIDE Some of the most common problems No sound e Power turned off or system in standby mode Check that the LED in the STANDBY button is blue e The input connection is loose or missing Check that the connection is secure e Protection relay has operated because of a short circuit loudspeaker wire or amplifier overheating Carefully check all wiring after switching the amplifier POWER OFF to allow it to cool e The fuse in the power cord inlet has failed Unplug the power cord from both the wall socket and the amplifier and pull out the small receptacle below the power cord inlet Two fuses should be visible
7. W One channel driven Maximum continuous power output 1 THD 1KHZ ccccccccseuccnssseecsdeeusecnesesesainenteesteesesenseesenstens 8Q 160W E ssa shine ssadwenseadbmeetadtuetaabaned enmaiesedeauans 4Q 280W IHF dynamic power 8Q 180W Ae Di as ag aise i sie ik asa gins ice era ates eaiieats Satu nate cs oe aia T angus E sale estate penne E 40 320W Input Sensitivity for 100W mto BO jarse aprii aa arae saueespaleoos ai teapiamers 1 0V Voltage Galis cs xa ant cate cote e ara nr Ai e i ero a pe aei erep Tr e a r Earp E E aE Er En 29dB Input impedance cases csccccsivsnesee sca 25 kQ 440pF Frequency response 20HZ 20KHZ vies erene aee nnna AEE E E REEE SE ENE SE E TEERDE 0 2dB Signal Noise ratio A weighted ref 100W 110dB EMeCANPUtS 65 Viiaestiersistenenpennacdvendeonteiee 5 x RCA phono Line GUPS ca ccdas cescsenss tanands ci venes ETR is beeen EE A AE FEE AER EE a ERARA 5 x RCA phono Control MP UNS OUI PUIS spee ieaxoredteatiquntaceeattarededal A Tre TE aN My Link I O 2 x RCA phono Teor atd eitasid iosia DC trigger I O 2 x 3 5mm mono jack Loudspeaker Outputs enseden nsa EN E TOEN RENE 5 pairs of gold plated 5 way binding posts Physical specification Dimensions width x height x depth Weieht NEG ccssasernsvcadamnervnd NETE AE A AE E E EET EEEE AEE E EEEE Power requirements Voltage set by internal Witing sr 2cusecossuasiasdacargysaece iA D EE E AS TEn ERER 120 or 230 V Stock No OST0012
8. ease as an integrated amplifier If a number of MA 500s are being used in a multi room system all the amplifiers may be My Linked so that they can be controlled as one Use a short RCA to RCA phono to phono interconnect cable to connect from the MY LINK OUT socket on the preamplifier to the MY LINK IN socket on the MA 500 A suitable 0 5m long My Link cable is supplied with the MA 500 A second cable can then run from the MY LINK OUT socket on the MA 500 to the MY LINK IN socket on a third Myryad component if desired and so on in daisy chain fashion NOTE MANUALLY SWITCHING THE MA 500 INTO STANDBY WILL NOT SWITCH A MY LINKED PREAMPLIFIER OR INTEGRATED INTO STANDBY WHEN THE MY LINK IS CONNECTED IT IS RECOMMENDED THAT NO CONNECTION BE MADE TO THE REMOTE TRIGGER INPUT SEE PAGE 5 4 Remote trigger control input output If the MA 500 is being used in a system without a Myryad M Series preamplifier processor or integrated equipped with My Link the REMOTE TRIGGER input may be used to allow the MA 500 to be remotely switched into or out of STANDBY If your preamplifier or processor has a TRIGGER output which delivers a DC trigger signal when the unit is switched on or out of standby then it can be linked to the MA 500 to switch the MA 500 out of into standby also A lead must be used which is fitted with a 3 5mm mini jack plug to connect to the MA 500 s REMOTE TRIGGER input socket The lead must be
9. ed for a few seconds to allow the internal voltage levels to settle The loudspeaker outputs are immediately disconnected again when the amplifier is switched back into standby mode The same loudspeaker mute relay is used to protect both the amplifier and your loudspeakers against possible damage If any one of a number of fault modes is detected loudspeaker outputs short circuit amplifier overheating amplifier DC fault the loudspeakers will be disconnected from the amplifier to protect both In the case of a short circuit or DC fault the loudspeakers will be re connected after a few seconds but will be disconnected again if the fault persists If overheating has caused the protection system to operate then it will take some time for the heatsinks to cool sufficiently to allow the loudspeakers to be re connected probably between five and fifteen minutes depending upon the room temperature and ventilation The amplifier will cool more quickly if it is switched to standby mode or if the POWER is switched OFF MA 500 Five Channel Power Amplifier The protection circuits of each of the five channels of the MA 500 are linked together so whichever channel s protection is activated whether by short circuit overheating or any other reason all five speaker relays will open so muting all five channels The MA 500 has two levels of over temperature protection If the lower temperature threshold is exceeded the maximum power
10. er switch the side nearer the edge of the rear panel to switch amplifier ON and the other side towards the speaker terminals to switch it OFF When the POWER switch is in the OFF position all power is disconnected from the amplifier In this condition the amplifier cannot be powered up from the front panel or the My Link or remote trigger When the POWER switch is in the ON position and the power cord correctly inserted and plugged in to a live wall socket the amplifier will power up in standby mode see FRONT PANEL CONTROLS STANDBY on page 6 It is recommended that the POWER switch be turned OFF if the amplifier is not going to be used for an extended period of time 3 My Link input output When the MA 500 is used in a system with other Myryad M Series products all may be joined together via the My Link This will allow the different products to be remotely controlled via the infra red receiver on for example an MDP 500 Preamplifier Processor or any Myryad M Series Preamplifier or Integrated Amplifier or a suitable multi room controller When joined via the My Link the MA 500 will respond to STANDBY and MUTE operations on the preamplifier whether operated from the front panel or by remote control For example if both the preamplifier and the MA 500 are in STANDBY then switching the preamplifier out of standby will also bring the MA 500 out of standby In this way an MDP 500 MA 500 can be operated with the same
11. hat more complex multi room systems may be built
12. ir of solid metal gold plated 5 way binding posts Like all Myryad M Series Power Amplifiers the MA 500 may be controlled remotely via the My Link communications bus when used with other Myryad M Series products My Link allows remote control of standby and mute functions In addition to this the MA 500 power amplifier may be switched into or out of standby remotely using its DC trigger input INSTALLATION AND SAFETY NOTES This amplifier generates a modest amount of heat and thus requires ventilation Do not place it on a rug or other soft surface into which it could sink obstructing the air inlets in its underside Do not allow papers or cloth to obstruct the ventilation grille in the top cover The amplifier should not be installed in a built in situation such as a bookcase or cabinet unless proper ventilation is provided If the amplifier is moved shortly after operation take care not to touch the heatsinks which are accessible from below as they may be very hot The amplifier is designed for use in moderate climates CAUTION TO PREVENT A FIRE OR SHOCK HAZARD DO NOT PERMIT THIS PRODUCT TO BECOME WET OR EXPOSE IT TO DRIPPING OR SPLASHING DO NOT PLACE OBJECTS FILLED WITH LIQUID SUCH AS VASES ON THE AMPLIFIER IF LIQUID IS ACCIDENTALLY SPILLED ON IT IMMEDIATELY SHUT OFF ITS POWER AT THE WALL SOCKET AND UNPLUG THE AC POWER CORD ALLOW SUFFICIENT TIME FOR COMPLETE EVAPORATION TO OCCUR BEFORE OPERATING THE AMPLIFIER
13. wired according to the rules below e Connector to MA 500 REMOTE TRIGGER input 3 5mm mini jack plug e Jack plug wiring sleeve negative tip positive e Trigger voltage DC 4 5V to 24V e Nominal loading of MA 500 REMOTE TRIGGER input 2200Q e Operation TRIGGER voltage change from 0 to ve MA 500 switched from standby to active TRIGGER voltage change from ve to 0 MA 500 switched from active to standby IF YOU ARE IN ANY DOUBT ABOUT MEETING ANY OF THESE CRITERIA OR PREPARING A SUITABLE LEAD ASK YOUR DEALER OR INSTALLER TO HANDLE THIS FOR YOU NOTE IF THE TRIGGER INPUT IS ACTIVE WHEN THE REAR PANEL POWER SWITCH IS TURNED ON THEN THE AMPLIFIER WILL NOT POWER UP INTO STANDBY MODE AS USUAL IT WILL POWER UP IMMEDIATELY INTO ITS ACTIVE STATE WITH ITS NORMAL POWER ON MUTE DELAY SEE FRONT PANEL CONTROLS STANDBY BELOW The REMOTE TRIGGER output is wired directly to the input Using this output further MA 500s or other products may be connected from a single trigger source without needing any special adaptors 5 Loudspeaker outputs The five amplifiers in the MA 500 are each capable of driving any loudspeaker with a rated impedance of 4Q or greater The loudspeaker terminals are high current binding posts coded red and black CAUTION THE RED TERMINALS ARE MARKED WITH A HAZARD SYMBOL NY TO INDICATE THAT THEY CAN BE LIVE READ ALL THE LOUDSPEAKER WIRING INSTRUCTIONS CAREFULLY IT IS RECOMMENDED THAT RE
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