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Related Manuals for Abbingdon Music Research AM-777
Summary of Contents for Abbingdon Music Research AM-777
- Page 1 AM-777 Pre-Main Amplifier Owner’s Manual...
- Page 2 FCC Declaration of Conformity - United States only the receiver is connected. This device complies with Part 15 of the FCC rules. Operation is subject - Consult the dealer or an experienced radio/TV technician for help. to the following two conditions: (1) This device may not cause harmful Canadian Notice (Avis Canadien) interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
- Page 3 WARNINGS The exclamation point within an equilateral triangle is intended to alert Unplug the component from the wall outlet before cleaning. Never use the user to the presence of important operating and maintenance benzine, thinner or other solvents for cleaning; use only a soft damp (servicing) instructions in the literature accompanying this component.
- Page 4 AMR estimates that the AM-777 may take between 300-500 operating hours for all of the internal components to be fully-broken in. Please anticipate the sonic performance of the AM-777 to settle only after it has been used for this approximate length of time.
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Page 5: Section 1 - Setup
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: Please check that all contents AM-777 Reference Class Dual-Mono Pre-Main Amplifier. - Page 6 Pre-Main Stereo Amplifier Connection (8 Ohm Speakers) Default pre- The following diagram illustrate the standard connection of the AM-777 in pre-main stereo amplifier main mode: the mode. This is the default factory setting and is suitable for the majority of audio systems.
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Page 7: Section 2 - Component Overview
2.1 AM-777 Front Fascia The plastic protective film covering the display may be removed 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. - Page 8 2.2 AM-777 Rear Panel Warning: en- sure that the correct mains voltage and speaker impedance are selected!
- Page 9 In the majority of audio systems, the AM-777 is most likely to be operated as a Pre-Main Amplifier. Please inspect the rear panel of the AM-777 to verify that the default settings (in bold) are as follows: 1. HIFI/PRO switches are set to HiFi (left position) 2.
- Page 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.
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Page 11: Section 3 - Operation
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. - Page 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.
- Page 13 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!
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Page 14: Section 4 - Menu Setting
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. - Page 15 This indicates that the AM-777 has detected an output condition that could potentially damage the speakers connected to it. Normally switching the AM-777 off, waiting 20 seconds and switching it back on will reset the protection circuit if the cause was for example, excessive signal levels. In the extremely rare event that an internal malfunction of the AM-777 is the cause for the protection circuit to engage, the protection will re-engage on switch-on, indicating the need for the AM-777 to be serviced.
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Page 16: Appendix A - Troubleshooting
• check and change mains plug fuse No sound • incorrect audio cable connections • connect the sources to the AM-777 correctly • incorrect amplifier operation • make sure that the input selector on the AM- 777 is set to the desired source Strange “blast”... -
Page 17: Appendix B - Specifications
Appendix B - Specifications 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: < 0.05V / > 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 channel at 2 or 4 ohm (monoblock mode) - Page 18 Shipped: 40 lbs / 18 kg Information and specifications are subject to change without notice. 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...