Link electronic MC-6 Stereo Amplifier User Manual
Contents
1. Left Front Full Range Loudspeaker Left Rear Loudspeaker Center Channel Loudspeaker Passive Subwoofer Right Rear Loudspeaker Right Front Full Range Loudspeaker Connect the left front channel interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that Is being used Connect the nght front channel interconnect from your pre amp or source component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that Is being used Connect the left rearchannel interconnect from your pre amp or source component to the CHANNEL 2 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 2 BAL UNBAL switch towards the connector that Is being used Connect the right rear channel interconnect from your pre amp Or source component to the CHANNEL 5 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 5 BAL UNBAL switch towards the connector that Is being used Connect the center channel interconnect from your pre amp or source component to the CHANNEL 3 balanced XLR or unbalanced RCA i2. Hi Center Channel Channel 3 gt Preamp Output gt Input L VaV Yay ni Center Channel NE Loudspeaker Link Outputs of Channels 3 and 4 Positive to Positive and Negative to Negative Channel D O 4 Input CH4 O peg a d felini gt Input gt OT Loudspeaker Link Outputs of Channels 5 and 6 Positive to Positive O and Negative to O Negative Right Front Channel E Preamp Output I 6 Input C C O Va 2 UJ Connect the left front channel interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that Is being used Connect the nght front channel interconnect from your pre amp or source component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that Is being used Connect the center channel interconnect from your pre amp or source component to the CHANNEL 3 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 3 BAL UNBAL switch towards the connector that Is being used Flip the LINK INPUT 6 TO 5 UNLINK NORMAL switch ON or up towards LINK INPUT 6 TO 5 Flip the LINK INPUT 4 TO 3 UNLINK NORMAL switc
3. amp Or source Component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that Is being used Flip the UNK INPUT 3 TO 2 UNUNK NORMAL switch ON or up towards LINK INPUT 3 TO 2 Using the output terminal linking cables of yourchoice see page 14 connect the output binding posts of CHANNEL 2 to CHANNEL 3 Connect your left font loudspeaker cable to the Channel 1 SPEAKER OUTPUT connector Connect your center channel loudspeaker cable to the Channel 3 SPEAKER OUTPUT connector 10 Connect your left rear loudspeaker cable to the Channel 4 SPEAKER OUTPUT connector 11 Connect your right rear loudspeaker cable to the Channel 5 SPEAKER OUTPUT connector 12 Connect your right front loudspeaker cable to the Channel 6 SPEAKER OUTPUT connector Please recheck your lagram for Six Channel Configuration Left Front Channel Preamp Output Channel 1 gt mu MO n Left Rear Channel Channel 2 eano Ouna ME input I T Center Channel Preamp Output ve IO Subwoofer Channel 4 Peamp IC input MO Output T Right Rear Channel 5 Channel ME input MO Preamp Output i Right Front Channel Preamp Output Channel 6 gt mut IO K O e Gai RE I L Link 1 to 2 Link 2 to 3 Link 3t0 4 Link 4to5 Link 5to 6 E E MA gt 29
4. and Negative to Negative fas Right Channel 1 Channel Em O Preamp Output gt 4 Input T Channel 5 Input Loudspeaker 2 Ful Range Right Channel 2 Channel Preamp Output gt 6 Input I Loudspeaker VeV a dales O 25 Connect the left channel 1 interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the correct balanced or unbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that is being used Connect the nght channel 1 interconnect from your pre amp or source component to the CHANNEL 4 balanced XLR or unbalanced RCA input connector Select the correct balanced or unbalanced input connector by flipping the Channel 4 BAL UNBAL switch towards the connector that is being used Connect the left channel 2 interconnect from your pre amp or source component to the CHANNEL 3 balanced XLR or unbalanced RCA input connector Select the correct balanced or unbalanced input connector by flipping the Channel 3 BAL UNBAL switch towards the connector that is being used Connect the nght channel 2 interconnect from your pre amp or source component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the correct balanced or unbalanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that is being used 26 To Configure the Amplifier for Four Channel Use 5 Flip th
5. the supporting structure via the compliant isolation interface pads This will help to attenuate the transfer of vibraton or resonant energy from the support stucture to the amplifier chassis 12 Rear Panel Power Connections Important Please strictly follow the steps in order as outlined below before operating your MC 6 Mult Channel Power Amplifier 1 Verify that the VOLTS AC input identified on the rear panel near the AC input socket is the same as the AC mains voltage in your area If the voltage does not match do not connect the amplifierto AC powerand contact your dealer immediately 2 Verify that the AC MAINS CIRCUIT BREAKER is closed green color visible 3 Install the AC Power Cable between the amplifier and your AC mains outlet 4 Verify that the circuit breakers forchannels 1 2 3 4 5 and 6 are closed no white area visible on each breaker Note If the amplifier is to be moved to another location always place the unit in Standby mode before disconnecting the AC power cable from the AC mains wall outlet Never use the AC mains circuit breaker as a power switch to connect or disconnect the amplifier from AC mains power Use Care and Signal Connections The Jeff Rowland Design Group MC 6 Power Amplifier has been designed with numerous protection circuits and to be able to operate at the highest level of performance in any nomal operating situation However there are a few important use and care principles tha
6. Channel Peamp Output 1 Input O i B Wireable Loudspeaker Ch gt SS lt 2 da N Tweeter mali D Channel gt J 3 Input Db i br A Link 3 to 4 Channel gt Y gt 2 J Eas NS 5 EE Mal U B Wireable Loudspeaker Right Channel 1 Channel ES t 6 Input i Preamp Outpu m Vav m l E e je LO Connect the left channel interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that is being used Connect the nght channel interconnect from your pre amp or source component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that Is being used Flip the LINK INPUT 2 TO 1 UNLINK NORMAL switch ON or up towards LINK INPUT 2 TO 1 Flip the UNK INPUT 3 TO 2 UNLINK NORMAL switch ON or up towards LINK INPUT 3 TO 2 Flip the LINK INPUT 6 TO 5 UNUNK NORMAL switch ON or up towards LINK INPUT 6 TO 5 Flip the UNK INPUT 5 TO 4 UNUNK NORMAL switch ON or up towards LINK INPUT 5 TO 4 20 4 6 1 The signal connections are now complete To Configure the Amplifier for Two C hannel Stereo Vertical Bi Amplific ation Use Using the output terminal li
7. MC 6 Multi Channel Power Amplifier Introduction Welcome to the J eff Rowland Design Group family and congratulations on your purchase of what is unquestionably one of the world s finest audio power amplifiers With its combination of features such as vanable multi channel configuration numerous function controls interconnect possibilities precision electronic circuitry and accurately machined chassis components throughout your MC 6 Mult Channel Power Amplifier will offer you many years of musically satisfying enjoyment Please take a few minutes to read the remainder of this Owners Manual before proceeding with the installation of the amplifier A thorough understanding of the operational features will allow you to gain the maximum performance and ease of use for which this amplifier was designed Please note that your MC 6 Mult Channel Power Amplifier senal number begins with the letters MC6 This number is recorded below and is also located on the rear panel of the chassis Please include this number with any conespondence regarding your MC 6 Mult Channel Power Amplifier It has been my joy to create an audio component of enduring value that reflects a higher ideal of musical and artistic expression It is my hope that these qualities will ennch your experience of ownership Enjoy the music Jeff Rowland President Jeff Rowland Design Group Jeff Rowland Design Group Inc 2911 North Prospect Steet Colorado Springs C
8. MC 6 is a large and heavy amplifier Due caution should be taken when unpacking and installing the amplifier to avoid injury The amplifier should be unpacked by atleast two people and there should be a portion of carpet or soft padded cloth to stand the amplifieron when unpacking it from the shipping case To unpackthe amplifier stand the shipping case upnght and unlock the top cover Remove the top coverand open the gray liner bag to reveal the handles of the amplifier Using the handles the amplifier should be lifted straight out of the case and rested on its rear handles standing upnght From this position the MC 6 can be carefully and slowly lowered and set to rest on its feet and moved into its final resting place or installation point Contents Ensure that all of the auxiliary components listed below are enclosed within the accessory box Refer to the diagrams illustrated above and venfy the components included 1 One 1 AC Power Cable 2 One setof four 4 Soiked Coupling Supports 3 One set of four 4 Compliant Isolation Pads 4 One 1 Soeaker Terminal Hand Wrench 7 16 inch 5 One 1 Wananty Card In some countries warranties are provided by the respective importer Amplifier Maintenance and Cleaning Maintenance and Cleaning All Jeff Rowland Design Group products are designed to provide a lifetime of enjoyment and listening pleasure The chassis is sealed to prevent dust from entering and the intenor of the chassis s
9. O 80907 Telephone 719 473 1181 Fax 719 633 4158 E mail jrdg jeffrowland com Web wwv jeffrowland com Product Features e XLR input connectors for balanced Differential Mode system configuration e RCA input Connectors for unbalanced system configurations e User selectable switching between balanced and unbalanced connections e Automatic temperature stabilizing circuity maintains constant operating temperature e DIN plug for remote tum on and Standby operation on rear panel e Multi Channel configuration for mono stereo three four five or six channel operation e Stereo vertical bi and ti amplification capability within a single Chassis e Unable inputs for channel selection and input configuration Automatic bias adjustment maintains optimal bias setting regardless of source signal or loudspeaker load Standby power mode reduces warm up time Fai safe operation provided by userresetable magnetic and thermal circuit breakers located on rear panel Quiet transient free operation during power and function mode switc hing Automatic input muting under anomalous input or output operating conditions Fully balanced Differential Mode circuit topology implemented from input to output Low resonance stucturally integrated chassis constucted of precision machined 6061 aircraft grade aluminum Contents AC PowerCable A Spiked Coupling Supports MC 6 Multi Channe
10. ORMAL switch ON or up towards LINK INPUT 5 TO 4 Flip the LINK INPUT 6 TO 5 UNLINK NORMAL switch ON orup towards LINK INPUT 6 TO 5 16 To Configure the Amplifier for Single Channel Monoblock Use 3 Using the output terminal linking cables of yourchoice see page 14 connect the output binding posts of CHANNEL 1 to CHANNEL 2 CHANNEL 2 to CHANNEL 3 CHANNEL 3 to CHANNEL 4 CHANNEL 4 to CHANNEL 5 and CHANNEL 5 to CHANNEL 6 Connect the conesponding left or ight loudspeaker cable to the Channel 6 SPEAKER OUTPUT connector The signal connections are now complete Please recheck your connections before operating the amplifier Diagram for Two Channel Stereo High Current Configuration Left Channel Channel E O Preamp Output LI 1 Input H CHI CA Link Outputs of Channels 1 and 2 and Channels 2 and 3 Positive to Positive and Negative to Negative Channel 2 Input Channel gt Sel Full Range 3 Input gt O Loudspeaker A Link 3 to 4 Channel 4 Input Link Outputs of Channels 4 and 5 and Channels 5 and 6 Positive to Positive Negati ive Channel 5 and Negative to Negative Input Right Channel Channel gt L Full Range Preamp Output gt 6 Input xe Dy Loudspeaker Connect the left channel interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping
11. and amplifier does not operate nomally Front panel STANDBY POWER BUTTON reverts to Standby Mode during listening but can be retumed to normal operation AC MAINS CIRCUIT BREAKER switches OFF or will not remain ON 50 60 Hz buzz noise in loudspeakers Cause Light bulb defective Incorect power connections or circuit breaker positions on rear panel of amplifier Abnomal Operation of the MC 6 intemal circ uity Excessive sub sonic or DC signals produced by source components Severe clipping of amplifier circ uity AC mains voltage too high for amplifier Abnomal operation of amplifier intemal circ uitry Ground loop condition created between Components in system 32 Remedy Remove SINADBY POWER BUTTON from front panel and replace bulb located under button Use replacement bulb kit and instuctions supplied by your dealer Review Installaton Rear Panel Power Connections section of Owners Manual Contact your dealer immediately Repair or replace source component Identify and conect abnomal conditions such as low frequency rumble and or acoustic feedback caused by phono playback if applicable Reduce volume slightly or use higher efficiency loudspeakers Consult your dealer immediately to have the amplifier reconfigured for the proper AC mains voltage Contact your dealer immediately Use balanced system configuration if possible Insoect interconnect cables for poor connection or terminatio
12. balanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that Is being used Flip the UNK INPUT 2 TO 1 UNLINK NORMAL switch ON or up towards LINK INPUT 2 TO 1 Flip the UNK INPUT 3 TO 2 UNUNK NORMAL switch ON orup towards LINK INPUT 3 TO 2 Flip the LINK INPUT 6 TO 5 UNLINK NORMAL switch ON or up towards LINK INPUT 6 TO 5 Flip the LINK INPUT 5 TO 4 UNLINK NORMAL switch ON or up towards LINK INPUT 5 TO 4 22 The signal connections are now complete connections before operating the amplifier To Configure the Amplifier for Two C hannel Stereo Vertical In Amplification Use 5 Connect your left woofer loudspeaker cable to the Channel 1 SPEAKER OUTPUT connector Connect your left midrange loudspeaker cable to the Channel 2 SPEAKER OUTPUT connector Connect your left tweeter loudspeaker cable to the Channel 3 SPEAKER OUTPUT connector Connect your nght woofer loudspeaker cable to the Channel 6 SPEAKER OUTPUT connector Connect your left midrange loudspeaker cable to the Channel 5 SPEAKER OUIPUT connector Connect your left tweeter loudspeaker cable to the Channel 4 SPEAKER OUTPUT connector Please recheck your D lagram for Three Channel Configuration Left Front Channel Channel 1 Full Range a gt al ment cr Hei VeV UJ Link Outputs of Channels 1 and 2 Channel O Positive to Positive 2 Input O 2 O and Negative to Negative Link 2 to 3
13. capability and compatibility with associated audio components When connecting or disconnecting speaker or interconnect cables it is always necessary to place the amplifier in Standby mode FRONT PANEL SIANDBY POWER BUTTON not illuminated or OFF Complete instructions for configunng and connecting the amplifier can be found in the next portion of this manual Please also note that any changes or updates to the manual will be posted on the Jeff Rowland Design Group web ste at http www jeffrowland com YA Warning Both positive and negative outputs are electrically active with respect to chassis and or system ground potential Therefore this amplifier cannot be used in certain loudspeaker switching configurations such as those used in retail demonstrations Failure to avoid these precautions can result in damage to the amplifier and will void the warranty Signal Connections Contents Directory The J eff Rowland Design Group MC 6 Mult Channel Power Amplifier features an innovative multichannel adjustment topology that allows the amplifier to be configured for mono stereo three four five or even 6 channel operation This flexibility means monoblock two channel stereo bi amplific ation ti amplification and a number of home theater applications can be realized within a single amplifier chassis with a few easy adjustments Within the amplifier there are two high curent amplifier sections and four standard amplifiersections These ampl
14. e LINK INPUT 5 TO 4 UNLINK NORMAL switch ON or up towards LINK INPUT 5 TO 4 Flip the UNK INPUT 3 TO 2 UNLINK NORMAL switch ON orup towards LINK INPUT 3 TO 2 6 Using the output terminal linking cables of yourchoice see page 14 connectthe output binding posts of CHANNEL 2 to CHANNEL 3 7 Using the outputterminal linking cables of your choice see page 14 connect the output binding posts of CHANNEL 4 to CHANNEL 5 8 Connect yourleft channel 1 loudspeakercable to the Channel 1 SPEAKER OUTPUT connector 9 Connect your right channel 1 loudspeaker cable to the Channel 5 SPEAKER OUTPUT connector 10 Connect your left channel 2 loudspeakercable to the Channel 3 SPEAKER OUTPUT connector 11 Connect your right channel 2 loudspeaker cable to the Channel 6 SPEAKER OUTPUT connector The signal connections are now complete Please recheck your connections before operating the amplifier D lagram for Five Channel Configuration Left Front Channel Il Preamp Output Channel 1 Input oC Channel 2 Center Channel gt C Preamp Output U Input W Channel 3 Input A Link 3 to 4 Left Rear Channel 4 Channel NE not 361 Preamp Output Link 4to5 Right Rear Channel 5 Channel gt Input EC Peamp Output Link 5 to 6 Right Front Channel 6 Channel gt Input i Xe Preamp Outout 27 Channels 2 and 3 Positive to Positive Left Front Full Range Loudspeaker Cente
15. h ON or up towards LINK INPUT 4 TO 3 Flip the LINK INPUT 2 TO 1 UNUNK NORMAL switch ON or up towards LINK INPUT 2 TO 1 24 To Configure the Amplifier for Three Channel Use 5 Using the outputterminal linking cables of your choice see page 14 connect the output binding posts of CHANNEL 1 to CHANNEL 2 6 Using the output terminal linking cables of your choice see page 14 connect the output binding posts of CHANNEL 3 to C HANNEL 4 7 Using the outputterminal linking cables of your choice see page 14 connect the output binding posts of CHANNEL 5 to CHANNEL 6 6 Connect your left front loudspeaker cable to the Channel 1 SPEAKER OUTPUT connector 9 Connect your right front loudspeaker cable to the Channel 5 SPEAKER OUTPUT connector 10 Connect your centerchannel loudspeaker cable to the Channel 3 SPEAKER OUTPUT connector The signal connections are now complete Please recheck your connections before operating the amplifier D lagram for Four Channel Configuration Left Channel 1 Channel fan Preamp Output gt 1 Input i Loudspeaker a Full Range L VV Link 1 to 2 gt Link Outputs of Channel e Channels 2 and 3 2 Input O CH2 DS Positive to Positive gt and Negative to i Negative Y Channel gt O 7 Full Range fears pupi put s CA Preamp Output i 3 Input IC 0 EE Loudspeaker Link 3 to 4 2 gt a x Link Outputs of Channels 4 and 5 SN Positive to Positive
16. hould not need cleaning during the lifetime of the product All intemal circuitry is self adjusting such that no adjustments or maintenance of any kind are necessary over the lifetime of the product If the amplifier is ever in need of service updating or upgrading it Should only be retumed to an authonzed repair facility or technician for servicing The MC 6 Mult Channel Power Amplifier is finely constructed from pieces of solid aluminum The front panel of the unit is cut in a unique process that uses a diamond tipped blade This process was refined over many years to produce an artistic and attractive finish Because the surface is not finished in the typical fashion of most audio and video equipment there are a few rules that must be kept in mind when cleaning the equipment e Please allow the front panel to cure for 6 months before attempting to clean it This will prevent small scratches from mamng the surface before the surface coating has had a chance to harden completely e The top cover sides and bottom covercan all be cleaned with a soft cotton cloth such as an optical lens cleaning cloth orfine fumiture polishing rag dampened with plain water Water should be applied directly to the cloth and not the chassis If a mark has been left on the chassis do not use any type of abrasive or chemical cleaner to remove the mark A very mild plastic or glass cleaner that does not contain ammonia should be tned only asa last resort P
17. ifiersections can be linked to each other to configure the amplifier for different applications The configuration procedure for the MC 6 Mult Channel Amplifier is a quickand simple procedure able to be performed within minutes with no additional tools or disassembly required For certain configurations the outputs of multiple channels must be linked using short sections of Output Terminal Linking Cable Linking Cables manufactured specifically for the MC 6 are available from J eff Rowland Design group or can be made from the same basic matenals as your selected loudspeaker cables Please have your loudspeaker cable manufacturer contact the J eff Rowland Design Group factory for proper Instruction in the construction of these linking cables Technical Note Linking paralleling multiple channels together is not similarto bridging and is an exclusive feature due to the unique circuitry of the MC 6 Linking channels together increases the maximum curent available and decreases the electrical load of each linked channel This yields improved electrical and sonic performance especially under demanding conditions For example if channels 1 through 6 are linked together the result is a single channel with a maximum output curent capability equal to the sum of the current capability of channels 1 through 6 When linking channels performance of the amplifier actually increases asa greater number of channels are linked together Input and Output Connecti
18. l Power Amplifier ay o Ko oo gt Compliant Speaker Isolation Terminal Pads Hand Wrench DN WARRANTY REGISTRATION JEFF ROWLAND DESIGN GROUP Warranty Card Initial Inspection Unpacking and Contents Initial Inspection Inspect the shipping container for damage If the shipping container packing matenal amplifier oraccessones are damaged or missing notify your dealer and the shipper if a claim is to be made immediately Note Many shippers require notification and inspection within twenty four hours of delivery to determine the nature of damages incurred Your MC 6 Mult Channel Power Amplifier has undergone extensive performance evaluations listening tests quality control inspections and a minimum seventy two hour bum in penod prior to shipment and should therefore be in perfect operating condition upon receipt If the amplifier does not operate correctly please notify your dealer immediately We strongly suggest that you save all packing matenals If the amplifier is retumed to your dealeror eff Rowland Design Group the Onginal packing matenals must be used for shipment to avoid damage Neither eff Rowland Design Group nor the shipper can be held responsible for damages incuned during transit if the original factory packing is not used All factory retums require that J eff Rowland Design Group issue a Retum Authonzation RA number prior to shipment Unpacking the Amplifier The
19. lease contact the factory before trying any type of cleanser on the chassis other than water to clean the unit e The front panel of the unit should neverbe cleaned with anything other than a very soft cotton cloth and plain water or fine oil based fumiture polish Because of the fine finish of the front panel small scratches from the use of any other agent to clean the front panel will become very visible If you have any questions about the care or cleaning of your MC 6 amplifier please contact your dealer or the J eff Rowland Design Group factory before attempting to clean the chassis The use of a cleanser or abrasive to clean the chassis that has not been approved by the factory will almost certainly damage the finish and will not be covered under wananty DC Protection System The MC 6 Multi Channel Power Amplifier is equipped with both magnetic and themal circuit breakers for protection against excessive voltage input and DC signal curent However since no protection circuitry or system can completely protect a product from every electrical hazard certain precautions Should be observed In the event of severe voltage hazards such as lightning or when the amplifier will not be used forextended periods of time such as when going on holiday the amplifier should be unplugged from the AC mains to avoid potential damage to the intemal circuitry As lightning can also be camed through other components and interconnect cables associated e
20. lectronics Should also be disconnected from the AC mains antennae or television cable if possible Amplifier Front Panel Function Control Amplifier Front Panel Front Panel Standby Power Button Amplifier Front Panel Function Control Before attempting any system interconnection please familiarize yourself with the front panel control of the MC 6 Multi Channel Power Amplifier The descnption below refers to the illustration above FRONT PANEL STANDBY POWER BUTTON Press this button to operate the amplifier Press again to place the amplifier in Standby mode This button will illuminate when the amplifier is operational When the button is not illuminated all amplifier inputs are muted and intemal circuitry reverts to power saving Standby mode Anomalous operating conditions will place the amplifier in Standby mode and will prevent the amplifier from being switched backon again until such a condition is eliminated To avoid spurious noises and possible damage to the amplifiers intemal circuitry the amplifier should be switched to Standby mode when connecting ordisconnecting any rear panel connections Note All ON OFF power switching should be initiated ONLY with this button The amplifier should not be disconnected from AC power without first placing the amplifier in Standby mode Amplifier Rear Panel Function Controls Amplifier Rear Panel HAH Ret RBT ARIE T F JERE pom AnO fed a sai SL Amplifier Rear Panel Fu
21. n Additional Information If you have any additional questions regarding the installation or operation of the MC 6 Mult Channel Power Amplifier please contact your authonzed J eff Rowland Design Group dealerorcheck the Jeff Rowland Design Group web site at http www jeffrowland com 33 Post Office Box 7231 Colorado Springs Colorado 80933 USA
22. nction Controls Before attempting any system interconnecton please familiarize yourself with the rear panel controls of the MC 6 Multi Channel Power Amplifier The descriptions below refer to the illustrations above 1 INPUT LINK SWITC HES FOR CHANNELS 1 2 3 4 5 AND 6 These switc hes allow the individual channels of the MC 6 to be linked in parallel to create single channels of great power and curent Capability THE CORRECT SWITC HES MUST BE SWITC HED ON WHEN THE APPROPRIATE JUMPERS ARE PLACED ACROSS THE CORRESPONDING OUTPUT TERMINALS N WARNING IF ANY OUTPUT TERMINALS ARE J UMPERED TOGETHER THE CORRESPONDING INPUTS MUST BE LINKED VIA THE INPUT UNK SWITCHES FAILURE TO OBSERVE THIS PROCEDURE WHEN OPERATING THE AMPUFIER WILL DAMAGE THE INTERNAL CIRCUITRY AND WILL VOID THE WARRANTY BE SURE TO SIRICTILY FOLLOW THE APPLICABLE CHANNEL CONFIGURATIONS AS SHOWN IN THE SIGNAL CONNECTIONS CONTENTS DIREC TORY ON PAGE 14 OF THIS MANUAL 10 2 INPUT SELEC T SWITC H FOR CHANNELS 1 2 3 4 5 AND 6 This switch selects either the unbalanced RCA inputs or the balanced XLR inputs This switch can be switched while the amplifier is operational and playing music Note When the RCA postion is selected pin 2 of the XR Is shorted to pin 1 signal ground REMOTE A remote connector 5 Pin DIN is provided on the rear panel for remotely switching the amplifier between operational and standby modes The pin connections on this connecto
23. nking cables of your choice see page 14 connect the output binding posts of CHANNEL 3 to CHANNEL 2 Using the output terminal linking cables of your choice see page 14 connect the output binding posts of CHANNEL 5 to CHANNEL 4 Connect your left woofer loudspeaker cable to the Channel 1 SPEAKER OUTPUT connector Connect your left tweeter loudspeaker cable to the Channel 2 SPEAKER OUTPUT connector Connect your nght tweeter loudspeaker cable to the Channel 5 SPEAKER OUTPUT connectors Connect your nght woofer loudspeaker cable to the Channel 6 SPEAKER OUTPUT connector Please recheck your connectons before operating the amplifier D lagram for Two Channel Stereo Vertical In Amplification Configuration Left Channel Channel Preamp Output gt 1 input C Channel Tn Wreable 2 Input Loudspeaker Channel 3 Input Link 3 to 4 Channel 4 Input Channel Tn Wireable 5 Input Loudspeaker Right Channel Channel be O Preamp Output gt 6 Input NO CH6 el 21 Connect the left channel interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that is being used Connect the nght channel interconnect from your pre amp or source component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the conect balanced or un
24. nput connector Select the conect balanced or unbalanced input connector by flipping the Channel 3 BAL UNBAL switch towards the connector that Is being used 30 To Configure the Amplifier for Six Channel Use 6 Connect the passive subwoofer channel interconnect from your pre amp orsource component to the CHANNEL 4 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 4 BAL UNBAL switch towards the connector that is being used 7 Verify that all of the LINK INPUT switches are in the OFF position or down towards the UNLINK NORMAL position 6 Connect your left front loudspeaker cable to the Channel 1 SPEAKER OUTPUT connector 9 Connect your right front loudspeaker cable to the Channel 6 SPEAKER OUTPUT connector 10 Connect your left rear loudspeaker cable to the Channel 2 SPEAKER OUTPUT connector 11 Connect your right rear loudspeaker cable to the Channel 5 SPEAKER OUTPUT connector 12 Connect your center channel loudspeaker cable to the Channel 3 SPEAKER OUIPUT connector 13 Connect your passive subwoofer loudspeaker cable to the Channel 4 SPEAKER OUTPUT connector The signal connections are now complete Please recheck your connectons before operating the amplifier M C 6 Multi Channel Power Amplifier Specifications PowerOutputperChannel Continuous RMS watts 8 ohms 4 ohms Power Bandwidth Slew Rate THD Noise Damping Fact
25. ons Single Channel Monoblock Use Page 15 Two Channel High Current Stereo Use Page 17 Two Channel Vertical B Amplification Use Page 19 Two Channel Vertical Tn Amplification Use Page 21 Three Channel Audio Video Use Page 23 Four Channel High Current Audio Video Use Page 25 Five Channel Audio Video Use Page 2 7 SC hannel Audio Video Use Page 29 14 Diagram for Single Channel Monoblock Configuration Left or Right Channel Channel IC 1 input MINO Preamp Output Link Outputs of Channels 1 and 2 Channels 2 and 3 Channels 3 and 4 Channels 4 and 5 and Channels 5 and 6 Positive to Positive and Negative to Negative Channel 2 Input Channel 3 Input Channel 4 Input Channel 5 Input Full Range Loudspeaker Channel 6 Input 1 Connect the left or right channel interconnect from your pre amp or source component depending on which channel of operation the amplifier is to be used for to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the correct balanced orunbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that Is being used Flip the LINK INPUT 2 TO 1 UNUNK NORMAL switch ON or up towards LINK INPUT 2 TO 1 Flip the UNK INPUT 3 TO 2 UNUNK NORMAL switch ON or up towards LINK INPUT 3 TO 2 Flip the LINK INPUT 4 TO 3 UNLINK NORMAL switch ON or up towards LINK INPUT 4 TO 3 Flip the LINK INPUT 5 TO 4 UNLINK N
26. or Gain 1 watt 8 ohms Input Impedance Common Mode Rejection Ratio Absolute Phase Monoblock Two Channel SxChannel 330 watts 250 watts 150 watts 600 watts 400 watts 250 watts 0 1 Hz to 160 kHz 3 dB 25 volts microsecond Less than 0 01 at Rated Power gt 60 Channels 1 and 6 gt 40 Channels 2 through 5 26 dB 141 mV 36k ohms per Channel gt 75 dB 20 20 kHz Phase Inverted Output Current Power Consumption Inputs O utp uts Amplifier Dimensions Amplifier Weight Shipping Dimensions Shipping Weight 60 amps peak Channels 1 and 6 30 amps peak Channels 2 5 Linked channels are cumulative 40 Watts Standby 200 Watts Idle 1200 Watts Maxmum User Selectable 6 x Balanced XLR 6 x Unbalanced RCA Six Pairs Five Way Binding Posts 17 5 Wx22 Dx11 4 H 44 5 cm Wx56 cm Dx28 5 cm H 124 Ibs 56 kg 24 Wx22 Dx13 H 61cm Wx56cm D x33cm H 164 lbs 75 kg Basic Troubleshooting A summary of fault conditions and theircauses and remedies are listed below The MC 6 Mult Channel Power Amplifier can produce high power levels that without well designed protection circuit could damage loudspeakers Therefore most fault conditions will result in the MC 6 reverting to Standby Mode Condition Front panel SIANDBY POWER BUTION does not illuminate after pressing amplifier operates nomally Front panel SIANDBY POWER BUTTON lamp does not illuminate after pressing
27. r Channel Loudspeaker Left Rear Loudspeaker Right Rear Loudspeaker Right Front Full Range Loudspeaker Connect the left front channel interconnect from your pre amp or source component to the CHANNEL 1 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 1 BAL UNBAL switch towards the connector that Is being used Connect the center channel interconnect from your pre amp or source component to the CHANNEL 2 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 2 BAL UNBAL switch towards the connector that Is being used Connect the left rearchannel interconnect from your pre amp or source component to the CHANNEL 4 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 4 BAL UNBAL switch towards the connector that is being used Connect the right rear channel interconnect from your pre amp or source component to the CHANNEL 5 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 5 BAL UNBAL switch towards the connector that Is being used 28 The signal connections are now complete connectons before operating the amplifier To Configure the Amplifier for Five Channel Use Connect the nght front channel interconnect from your pre
28. r parallel the electrical contacts of the FRONT PANEL STANDBY POWER button and lamp Contact your dealer or the Jeff Rowland Design Group factory for further information about this feature Rear Panel Power Connections Amplifier Rear Panel Pt air amani H Ha mT KRE AREA Voda fed a ise AMPLI ii L 11 Insta Ila tion locate the amplifieras close as possible to its final installation point Allow access to the rear panel for making connections The MC 6 Mult Channel Power Amplifier is convecton cooled eliminating the need for fan or forced air cooling When operating the chassis should have at least two 2 inches of air space around the heatsink areas Multiple chassis can be stacked vertically facilitating an upward flow of wam air cuments throughout the vertical heatsink areas This upward flow must not be blocked or recirculated around the chassis if proper cooling is to be maintained Typical installations allow the amplifier to be ngidly coupled to a support stucture or floor via the included spiked coupling supports In carpeted installations these supports provide excellent anchoring from the amplifier chassis to the rigid floor or sub floor below If there isconcem about damage to the structure orfloors finish a coin can be placed beneath each spiked coupling support In installations where the resonant properties of the supporting structure are poor the amplifier chassis can be loosely coupled to
29. t must be kept in mind when operating the amplifier e Do not expose the amplifier to rain moisture or excessively damp conditions e Do not disconnect the amplifier fom AC mains without first placing the amplifier in Standby mode e The MC 6 Mult Channel Power Amplifier must not be modified in any way other than according to official service bulletins from Jeff Rowland Design Group Otherwise the factory warranty will be immediately voided e The MC 6 Mult Channel Power Amplifier can be operated ata nominal 100 115 200 or 230 volts AC For this reason you Should first assure that the amplifier has been wired for the conectAC input voltage before operation e Dene MC 6 generates a significant amount of heat it should not be placed ina cabinet orarea where the heatsinks are not able to properly dissipate heat during operation Please make sure adequate ventilation is provided e To clean the MC 6 Mult Channel Power Amplifier use a soft cloth moistened with plain water Never apply water dusting sprays solvents abrasives or cleaning fluids directly to the chassis e When operating the MC 6 a properly grounded AC receptacle Should be used A potential shock hazard may result if the supplied 3 wire grounded AC cord set ground terminal is defeated or lifted or the unit is connected to a 2 wire ungrounded AC outlet 13 Signal Connections The MC 6 Multi Channel Power Amplifier offers unprecedented channel configuration
30. the Channel 1 BAL UNBAL switch towards the connector that is being used Connect the nght channel interconnect from your pre amp or source component to the CHANNEL 6 balanced XLR or unbalanced RCA input connector Select the conect balanced or unbalanced input connector by flipping the Channel 6 BAL UNBAL switch towards the connector that is being used Flip the LINK INPUT 2 TO 1 UNUNK NORMAL switch ON or up towards LINK INPUT 2 TO 1 Flip the UNK INPUT 3 TO 2 UNUNK NORMAL switch ON orup towards LINK INPUT 3 TO 2 Flip the LINK INPUT 6 TO 5 UNLINK NORMAL switch ON or up towards LINK INPUT 6 TO 5 Flip the LINK INPUT 5 TO 4 UNUNK NORMAL switch ON orup towards LINK INPUT 5 TO 4 18 To Configure the Amplifier for Two Channel Stereo High Current Use Using the output terminal linking cables of yourchoice see page 14 connectthe output binding posts of CHANNEL 1 to CHANNEL 2 and CHANNEL 2 to CHANNEL 3 Using the output terminal linking cables of yourchoice see page 14 connectthe output binding posts of CHANNEL 6 to CHANNEL 5 and CHANNEL 5 to CHANNEL 4 Connect your left loudspeaker cable to the Channel 1 SPEAKER OUIPUT connector Connect your nght loudspeaker cable to the Channel 6 SPEAKER OUIPUT connector The signal connections are now complete Please recheck your connections before operating the amplifier Diagram for Two Channel Stereo Vertical Bi Amplifica tion Use Left Channel
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