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AM-77 Reference Class

Dual-Mono Pre-Main Amplifier

Owner’s Manual

Ver 3.6.3

Summary of Contents for AM-77

Page 1: ...AM 77 Reference Class Dual Mono Pre Main Amplifier Owner s Manual Ver 3 6 3...

Page 2: ...dio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or r...

Page 3: ...point s assurance that only AMR Authorised Replacement Parts with the same characteristics as the original parts have been used and that the rou tine safety checks have been performed to guarantee th...

Page 4: ...entilation For example it should not be situated on a bed sofa rug or similar surface that may block the top or bottom ventilation openings or placed in a built in installation such as a bookcase or c...

Page 5: ...n 2 Component Overview 2 1 AM 77 Front Panel 13 2 2 AM 77 Rear Panel 14 2 3 RC 77 Remote Control 16 Section 3 Operation 3 1 Power On Off 17 3 2 Volume Adjustment 17 3 3 Rear Inputs 17 3 4 Speakon Outp...

Page 6: ...4 2 Labelling Input X 23 4 3 Setting Level Offset 23 4 4 Setting Fixed Input Level 24 4 5 OptiProtect Speaker Overload Protection 25 4 6 OptiMains Protection for Excessive Under Over Voltages 26 Secti...

Page 7: ...Pre Main Monoblock 36 Mode III Pre Main Bi Amplifier 38 Mode IV Power Stereo amplifier 40 Mode V Power Monoblock Amplifier 42 Mode VI Power Bi Amplifer 44 Section 6 Additional Connectivity 6 1 Input...

Page 8: ...8 This page has been intentionally left blank...

Page 9: ...nt setup Upon unpacking please find i AM 77 Reference Class Dual Mono Pre Main Amplifier ii RC 77 Remote Commander iii Mains power cable iv Synchronisation 3 5mm jack cable for linking up multipleAM 7...

Page 10: ...le for the majority of audio systems Figure 1 1 depicts the use of standard banana spade speaker connectors while Figure 1 2 illustrates the use of Speakon connectors Figure 1 1 System connection usin...

Page 11: ...y superior Speakon connectors i Connect the respective spade banana Speakon connectors of the speaker cables to the AM 77 ii Connect the source s via the respective left and right XLR or RCA connector...

Page 12: ...12 This page has been intentionally left blank...

Page 13: ...select between the 5 different inputs F3 VOLUME to adjust the volume level F4 iPod 3 5mm input connector for the connection of an iPod or similar portable music device F5 iPod USB charging connector...

Page 14: ...source with transformer balanced output R4 INT POWER amp switch to alternate between Pre Main and Power Amplification setings R5 MODE switch to alternate between Stereo Monoblock Bi Amplification sett...

Page 15: ...ocker switch to power on off mains electricity to the AM 77 In the majority of audio systems the AM 77 is most likely to be operated as a Pre Main Amplifier please inspect the rear panel of theAM 77 t...

Page 16: ...tandby mode RC3 SOURCE to select between the 5 different inputs RC4 VOLUME to adjust the volume level RC5 MUTE to Mute temporarily turn off sound the AM 77 RC6 BRIGHTNESS to adjust brightness levels R...

Page 17: ...rtable level for listening While adjusting volume levels there may be a very minor click fromAM 77 and the speakers This is the normal operation of the relays within the OptiLevel direct path precisio...

Page 18: ...t the rear of theAM 77 the Mode switch R5 allows for theAM 77 to alternate between Stereo Monoblock Bi Amplifier modes Please refer to Section 5 System Configurations for a detailed explanation 3 7 In...

Page 19: ...the RC 77 is for the confirmation of a desired selection within the Advanced Menu system of the AM 77 Please refer to Section 4 Advanced Features for a detailed explanation 3 12 Mute RC 77 only The MU...

Page 20: ...20 This page has been intentionally left blank...

Page 21: ...real time so that the user may adjust the offset without the need for additional equipment By using this function and selecting the desired level offset one may match the volume level of all inputs so...

Page 22: ...yer 8 DVD Recorder 9 HD Recorder 10 HDTV 11 iPod 12 LCD TV 13 Media Center 14 MP3 Player 15 PC Audio 16 Phono Stage 17 Plasma TV 18 Pre Amplifier 19 SACD Player 20 Tape Deck 21 Television 22 Tuner 23...

Page 23: ...to store the new name You will then move automatically onto Setting Level Offset 4 3 Setting Level Offset Level Offset is flashing on the 1st line of the display Use the Volume Volume to increase dec...

Page 24: ...Go to Section 4 1 and follow the instructions to select the last label H o m e T h e a t r e D i r e c t Simultaneously press volume F3 on the front panel of the AM 77 and OK RC7 on the RC 77 Having...

Page 25: ...detected an output condition that could potentially damage the speakers connect ed to it Normally switching theAM 77 off waiting 30 seconds and switching it back on will reset the protection circuit i...

Page 26: ...oduct is no longer properly served In the case of extreme power surges brown outs or other exceptional unexpected conditions that exceed the safety margins the OptiMains system will automatically swit...

Page 27: ...Pre Main Stereo amplifier setting With diverse system permutations in mind the AM 77 has built in six OptiOperation modes to seamlessly integrate into virtually any audio system configuration Mode I P...

Page 28: ...a fully active 3 way speaker system to the highest possible level of sound reproduction or 3xAM 77s synchronised for a multi channel surround sound system or 2xAM 77s synchronised in monoblock or bi a...

Page 29: ...he only amplifier L Pre Amp L 1st AM 77 Power Amp R Power Amp L Left Speaker Right Speaker Pre Amp R R The following pages provide an outline of the theoretical wiring system behind each of the six di...

Page 30: ...erminal connections 600W 2Ohm RMS and 300W 1Ohm RMS without current clipping This is best suited to driving very low impedance speakers Mode II Pre Main Monoblock L Pre Amp L 1st AM 77 Power Amp R Pow...

Page 31: ...terminal connections with improved per formance and dynamic range Virtually all the power supply power is avail able to the low frequency channel with imp proved channel separation L Pre Amp L 1st AM...

Page 32: ...IV Power Stereo Same as Mode I except the Pre Amplifier sec tion has been bypassed A separate pre amplifier is needed to control the volume L 1st AM 77 Power Amp R Power Amp L Left Speaker Right Speak...

Page 33: ...Same as Mode II except the Pre Amplifier section has been bypassed A separate pre amplifier is needed to control the volume L 1st AM 77 Power Amp R Power Amp L R 2nd AM 77 Power Amp R Power Amp L Left...

Page 34: ...e Pre Amplifier section has been bypassed A separate pre amplifier is needed to control the volume Mode VI Power Bi Amplifier L 1st AM 77 Power Amp R Power Amp L R 2nd AM 77 Power Amp R Power Amp L Le...

Page 35: ...ious modes Mode I Pre Main Stereo amplifier default This is the factory default setting the connection for which has been described in detail in Section 1 Setup We have illustrated the default switch...

Page 36: ...36 Mode II Pre Main Monoblock amplifiers...

Page 37: ...nector R8 of the slave amplifier The amplifier with the cable connected to Sync In becomes slaved to the other and will automatically follow the master AM 77 iii Using a small flat blade screwdriver m...

Page 38: ...38 Mode III Pre Main Bi amplifier horizontal bi amping...

Page 39: ...ector R8 of the slave amplifier The amplifier with the cable connected to Sync In becomes slaved to the other and will automatically follow the master AM 77 iii Using a small flat blade screwdriver mo...

Page 40: ...40 Mode IV Power Stereo amplifier...

Page 41: ...the AM 77 via the Balanced or RCA female connector of Input 1 R6 iii Using a small flat blade screwdriver move the MODE switch R5 to the centre to select L R iv Using a small flat blade screwdriver mo...

Page 42: ...42 Mode V Power Monoblock amplifier...

Page 43: ...t the rear of both AM 77s ii Using a small flat blade screwdriver move the MODE switch R5 to the left to select M iii Using a small flat blade screwdriver move the INT POWER AMP switch R4 to the left...

Page 44: ...44 Mode VI Power Bi amplifier...

Page 45: ...the rear of both AM 77s ii Using a small flat blade screwdriver move the MODE switch R5 to the right to select MM iii Using a small flat blade screwdriver move the INT POWER AMP switch R4 to the left...

Page 46: ...46 This page has been intentionally left blank...

Page 47: ...od or any other portable music device for music playback through this medium To select this source change selection to Input 4 disconnect any RCA connection to Input 4 at the rear panel The USB connec...

Page 48: ...itch needs to be set to Pro A transformer balanced output uses a floating secondary from an audio transformer unlike electronic balanced outputs of any description the signal is NOT referenced to grou...

Page 49: ...6 3 RS232 Options Connector The RS232 Options connector port R9 is for upgrading the functionality of the AM 77 in future Contact your local AMR distributor dealer for more details For future up grad...

Page 50: ...ure no contact between chassis and spade terminals no short circuiting Remote control does remote control batteries have replace 2 xAAAbatteries not work expired object obscuring remote sensor on remo...

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AMR AM-77, Owner'S Manual

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