Yamaha PC4800N, Owner'S Manual

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5
Introduction
Thank you for purchasing a Yamaha PC9500N, or PC4800N Series Power Amplifier.
The PC Series of power amplifiers was developed from Yamaha’s wealth of experience in building
PA equipment and its tradition of careful attention to every detail of circuit design. These power
amplifiers feature high power and superb quality together with superior reliability and stability,
guaranteeing the highest possible audio performance.
Main features include
• Three modes are provided to support a broad range of applications: STEREO mode which
can be driven by two independent sources, PARALLEL mode in which a monaural source
drives both channels, and BRIDGE mode in which the two internal amps function as a single
mono amp.
• Balanced XLR connector and Euroblock connector inputs, and Speakon connector and five-
way binding post outputs are provided.
• A high pass filter switch that cuts frequencies below 40 Hz, and detented attenuators and
level meters for channels A and B are provided.
• Metering and indicators include easily visible two-channel level meters, a PROTECTION
indicator that shows the state of various protection systems (power on/off detection, output
protection, DC detection), a TEMP indicator that indicates heat sink overheating, and a
REMOTE indicator that indicates the external remote status.
• Variable-speed, low-noise cooling fan system ensures high reliability even under the most
demanding conditions.
This Owner’s Manual applies to the PC9500N and PC4800N power amplifier. In order to take
full advantage of your power amplifier and enjoy long and trouble-free operation, please read this
Owner’s Manual carefully before using your Power Amplifier.
Contents
Introduction ............................................................... 5
Controls and Functions ............................................. 6
Front Panel .......................................................... 6
Rear Panel ........................................................... 7
Speaker connections ........................................... 8
Connection ................................................................ 9
Using a Euroblock connector ............................... 9
Speaker Connection ............................................ 9
Air Flow ................................................................... 10
Rack Mounting ........................................................ 10
Specifications .......................................................... 11
General Specifications ....................................... 11
Block Diagram ................................................... 12
Dimensions ........................................................ 13
Troubleshooting ...................................................... 14
Performance graph ................................................. 14