Do you have a question about the Yamaha M-40 and is the answer not in the manual?
Read all instructions, retain them, and heed warnings for safe operation.
Proper placement regarding water, moisture, heat, and ventilation.
Power cord protection, cleaning, nonuse periods, and service requirements.
Explains safety symbols like lightning flash and exclamation point.
Important guidelines for safe operation, placement, and handling.
Details on connecting the M-40 to a control amp and grounding.
Guidance on connecting to AC power outlets and avoiding overloading.
Instructions for stripping and connecting speaker wires to terminals.
Options for connecting multiple speaker pairs and minimum impedance rules.
Explanation of Power Switch, Protection Indicator, Auto Class A, and Input Level Controls.
How to select and use the A, B, and C speaker output terminals.
A chart illustrating speaker switch combinations and their outcomes.
Optional procedure for attaching rack mounting adaptors for EIA racks.
A guide to resolving common operational issues without service.
Comprehensive list of power, performance, dimensions, and weight.