Abbingdon Music Research AM-777 Owner'S Manual Download | Manualshive

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AM-777

Pre-Main Amplifier

Owner’s Manual

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Summary of Contents for AM-777

Page 1: ...AM 777 Pre Main Amplifier Owner s Manual ...

Page 2: ...adio 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 relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consu...

Page 3: ...onent should be serviced only by qualified AMR service personnel when A The power cable or the power input socket has been damaged B Objects have fallen or liquid has been spilled into the component C The component has been exposed to rain or liquids of any kind D The component does not appear to operate normally or exhibits a marked change in performance E The component has been dropped or the en...

Page 4: ...ere with its proper ventilation 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 cabinet that may impede the flow of air through its top and bottom ventilation openings Do not place the component in a location near heat sources or in a place subject to direct s...

Page 5: ...ing of the AM 777 and its subsequent setup Upon unpacking please find i AM 777 Reference Class Dual Mono Pre Main Amplifier ii RC 777 Remote Commander with 2 x AAA batteries iii Mains power cable iv AM 777 Owner s Manual v AMR Warranty Card Please ensure that all items are present Should an item be missing please contact your AMR distributor dealer Please check that all contents are present Sectio...

Page 6: ...IR Link Power On Off Interconnect Cable Interconnect Cable Speaker R HF LF HF LF Speaker L R L AC Power On Off L R M M M SERIAL NO 1 4 3 2 Pre Out USB Input IR Link L R Speaker Outputs Inputs R L No User Serviceable Components Inside For service contact your Authorised Dealer or Distributor Any modifications to this equipment will void all warranties CLASS 1 LASER PRODUCT CAUTION ATTENTION RISK OF...

Page 7: ...2 Component Overview F1 STANDBY to place the AM 777 in active or standby mode F2 SOURCE to select between the different inputs F3 VOLUME to adjust the volume level The plastic protective film covering the display may be removed F2 F3 F1 ...

Page 8: ...8 2 2 AM 777 Rear Panel Warning en sure that the correct mains voltage and speaker impedance are selected R4 R3 R2 R1 R6 R5 R8 R7 R9 R10 R11 R12 R13 ...

Page 9: ...ers R10 MODE to alternate between Stereo Monoblock Bi Amplification settings R11 INT POWER Amp to alternate between Pre Main and Power Amplification setings R12 4R 8R speaker to select the correct speaker impedance R13 Infra Red Link for connection of a wireline remote control In the majority of audio systems the AM 777 is most likely to be operated as a Pre Main Amplifier Please inspect the rear ...

Page 10: ...de 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 777 RC6 BRIGHTNESS to adjust brightness levels RC7 OK to be used in Advanced Features mode Please refer to Section 4 Menu Setting section for more details RC4 RC3 RC1 RC6 RC2 RC5 RC7 ...

Page 11: ... volume up or down to attain a comfortable level for listening 3 1 3 Rear Inputs At the rear of the AM 777 there are 4 sets of RCA inputs for the connection of source components such as the CD 777 compact disk processor or a vinyl source One XLR Input is shared with the RCA Input 1 The fifth input is USB only and can only be selected if connected to a computer If the AM 777 is used in single chann...

Page 12: ...lifier modes 3 1 6 Int Power switch At the rear of the AM 777 the Int Power switch R11 enables the AM 777 to alternate between pre main or power amplification modes 3 1 7 HiFi Pro switch At the rear of the AM 777 the HiFi Pro switch R3 allows for a source with a transformer balanced output to be connected to the AM 777 3 1 8 Preamplifier Output connector At the rear of the AM 777 the preamplifier ...

Page 13: ...ows the AM 777 to be configured to correctly match the impedance of the speakers used 3 1 10 Mains Voltage Switch At the rear of the AM 777 the 115V 230V switch R5 allows the AM 777 to be configured to correctly match the local mains voltage Warning setting this switch incorrectly may damage your AM 777 ...

Page 14: ...ses the Volume Volume to scroll through the names Press the OK key on the remote to store the new name 4 1 2 Setting Level Offset Level Offset is flashing on the 1st line of the display Use the Volume Volume to increase decrease the offset the volume will also change in realtime The range of offset available is from 18dB to 12dB Press the OK key on the remote to store the new offset 4 1 3 Setting ...

Page 15: ...ect the AM 777 has an in built speaker protection circuit This is mainly a final safeguard against equipment failure and or extreme levels of over driving the amplifier and speakers When the display shows S p e a k e r P r o t e c t i o n E n g a g e d This indicates that the AM 777 has detected an output condition that could potentially damage the speakers connected to it Normally switching the A...

Page 16: ...not adjust fitting between speaker and chassis connectors in contact with the chassis and terminal Ensure no contact between chassis and spade terminals no short circuiting Remote control does remote control batteries have replace 2 x AAA batteries not work expired object obscuring remote sensor on remove any objects directly in front of the the AM 777 no line of sight AM 777 Interference from flu...

Page 17: ...el at 2 or 4 ohm monoblock mode FTC 60 watts per channel at 4 or 8 ohm stereo mode 70 watts at 8 ohm monoblock mode 120 watts per channel at 2 or 4 ohm monoblock mode Output impedance 0 33 ohm 20 20 000 Hz Frequency Response 1dB 10Hz 30kHz Signal to noise ratio A weighted 100 dB Operational Modes Pre Main amplifier mode Power amplifier mode Monoblock option Thermionic Electron Valves amplification...

Page 18: ... Valve Stage Power consumption Standby 1 W Power on 25 W at rated output 4R 250 W Power Supply Capacitance 44 000uF in total Rated voltage 100V 120V 230V AC 50Hz 60Hz Mains Fuse 100V 120V 4A slow blow 230V 2A slow blow Colour Silver or Black Dimensions 17 7 in W by 4 7 in H by 14 6 in D 45 cm W by 12 cm H by 37 cm D 57 cm W by 49 cm H by 25 cm D shipped Weight AM 777 31 lbs 14 kg Shipped 40 lbs 18...

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