Summary of AM-777
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Am-777 pre-main amplifier owner’s manual.
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2 fcc declaration of conformity - united states only this device complies with part 15 of the fcc rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that ma...
Page 3: Warnings
3 the exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying this component. Warnings component and cart combination to overturn. Any mounting of the device on a wal...
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4 precautions this equipment has been tested and found to comply with the limits set out in the emc directive using a connection cable shorter than 3 metres. On power sources the mains power cable should be routed so that it is not likely to be walked on or pinched, especially near the plug or back ...
Page 5: Section 1 - Setup
5 thank you for purchasing this amr reference class component. We hope you derive as much pleasure from using this component as we have enjoyed making it for you. 1.1 unpacking this section refers to the unpacking of the am-777 and its subsequent setup. Upon unpacking, please find: i. Am-777 referen...
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6 warning: ensure no speaker connector is in contact with the chassis to cause a short- circuit! Default pre- main mode: the am-777 as an integrated amplifier 1.2 setup pre-main stereo amplifier connection (8 ohm speakers) the following diagram illustrate the standard connection of the am-777 in pre...
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7 2.1 am-777 front fascia section 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.
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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 !.
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9 r1. Spade/banana outputs : for connection of standard termination speaker cables. R2. Usb input: to allow direct connection to a computer. R3. Hifi/pro : to allow for a source with transformer balanced output. R4. Power : to switch on mains electricity to the am-777. R5. 115v/230v : to switch to t...
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10 2.3 rc-777 remote control rc1. Menu : to enter advanced features mode*. Rc2. Standby : to place the am-777 in active or standby 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-777. Rc6...
Page 11: Section 3 - Operation
11 3.1 notes on operation 3.1.1 power on/off press the ‘power’ rocker switch (r4) at the rear of the amp to switch on mains power to the am- 777. To switch the mains power off, press again and release. Always wait at least 30 seconds before switching on again. This is to enable the am-777 circuits t...
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12 3.1.4 usb input the am-777 can be connected via a usb connection (r2) directly to a computer for sound replay. No drivers are required under windows xp sp2 or later and mac osx. Make sure the playback application is set correctly to output sound to the usb audio device. 3.1.5 mode switch at the r...
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13 3.1.9 speaker impedance switch at the rear of the am-777, the 4r/8r speaker impedance switch (r12) allows 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 con...
Page 14: Section 4 - Menu Setting
14 . 4.1 labeling of inputs and setting level offset with the am-777, in one process, it is possible to label each of the inputs with a corresponding source and to set the respective level offset. This function is recommended only after all desired sources have been connected to the am-777. Setup la...
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15 if there are any questions, please contact your nearest amr distributor/ dealer • confirm the warning message by pressing volume+ or press ok to exit without enabling bypass mode • then select one of the following settings using volume+/volume - : fixed input 4v, fixed input 2v or fixed input 1v ...
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16 appendix a - troubleshooting symptom possible cause solution with power on • poor/no power plug connection • insert the power plug firmly into the ac no power is at mains power point registered • blown fuse at mains plug • check and change mains plug fuse no sound • incorrect audio cable connecti...
Page 17: Appendix B - Specifications
17 inputs: 4 x rca 1 x xlr bal. Shared with 1 rca 1 x usb volume control: -71db – 0db in 1db steps + mute input sensitivity (ihf 2.83v out)/impedance: 20kohm power output ihf dynamic power: 60 watts per channel at 4 or 8 ohm (stereo mode) 70 watts per channel at 8 ohm (monoblock mode) 120 watts per ...
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18 abbingdon music research is a subsidiary of the abbingdon global group 22 notting hill gate; london; w11 3je; united kingdom; tel: +44 (0) 870 420 5505; fax: +44 (0) 700 596 1065 www.Amr-audio.Co.Uk power transformer: 380 va custom torroid (output stage) 32 va custom ei transformer (valve stage) ...