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20 ACU16-C Amp Control Unit
ACU16-C & NHB32-C Owner’s Manual
2 ACU16-C Amp Control Unit
Introduction
The Yamaha ACU16-C Amp Control Unit is a CobraNet interface offering 24-bit D/A con-
version of up to 16 CobraNet audio channels, which are output via Euro-block connectors
for connection to up to eight 2-channel power amplifiers. Up to 16 ACU16-Cs can be used
on a single CobraNet network, providing D/A conversion of up to 256 CobraNet audio
channels. Primary and secondary CobraNet ports are provided for integration in systems
with built-in redundancy.
In addition, the ACU16-C works as an interface for Yamaha’s NetworkAmp Manager soft-
ware, which runs on standard Windows PCs and offers control and monitoring of up to 512
Yamaha PCxxxxN series power amplifiers (32 amps per ACU16-C), up to eight NHB32-Cs,
and up to 16 ACU16-Cs. A PC can be connected directly to the ACU16-C by using either
USB or RS-232C. Multiple units can be managed from a single PC connected to any
ACU16-C or NHB32-C on the CobraNet network.
As of this writing, the Yamaha PC9500N and PC4800N power amplifiers can be networked
with the ACU16-C. Please check the Yamaha Professional Audio Web site at the following
URL for news and information on networkable power amplifiers to be released in the
future, and for information on other Yamaha professional audio products:
<http://www.yamaha.co.jp/product/proaudio/homeenglish/>.
Features
•Sixteen 24-bit, 128-times oversampling D/A converters
• 110 dB typical dynamic range
•Select four CobraNet bundles (32 audio channels) in the range 0–16,383
1
•Individually patch up to 16 CobraNet audio channels to the analog outputs
1
•Primary and secondary CobraNet ports
• 16 Euro-block analog outputs
•Works as interface for the NetworkAmp Manager software
• RS-485 port for connection of up to 32 Yamaha PCxxxxN series power amplifiers
• USB and RS-232C serial ports for PC connection
•Connect up to 16 ACU16-Cs on a single CobraNet network
• PC/NetworkAmp Manager control via any ACU16-C or NHB32-C on the network
•CobraNet LINK, CONDUCT, and ERROR indicators
1. Set in NetworkAmp Manager.