Abbingdon Music Research AM-77 Reference Class - Manual (Page 18)

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3.4. Speakon Outputs
At the rear of the AM-77 are Speakon female connectors (R2) to allow speaker cables terminated with Speakon
male connectors to be connected to the AM-77.
3.5 Synch Connectors
At the rear of the AM-77 are Synchronisation ‘In’ and ‘Out’ connection points (R8). This is for the linking of
multiple AM-77s for alternative system configurations. Please refer to Section 5 - System Configurations for a
detailed explanation.
3.6 Mode Switch
At the rear of the AM-77 the ‘Mode’ switch (R5) allows for the AM-77 to alternate between Stereo/Monoblock/Bi-
Amplifier modes. Please refer to Section 5 - System Configurations for a detailed explanation.
3.7 Int/Power Switch
At the rear of the AM-77, the ‘Int/Power’ switch (R4) enables the AM-77 to alternate between pre-main or power
amplification modes. Please refer to Section 5 - System Configurations for a detailed explanation.
3.8 HiFi/Pro Switch
At the rear of the AM-77, the ‘HiFi/Pro’ switch (R3) allows for a source with a transformer balanced output to be
connected to the AM-77. Please refer to Section 6 - Additional Connectivity for a detailed explanation.