Yamaha NetworkAmp Manager Owners Manual

4 NHB Pages


NHB Pages

NetworkAmp Manager—Owner’s Manual

4  NHB Pages

This chapter explains the NHB pages, which can be selected while an NHB32-C is selected 
in the network tree.

Devices on a CobraNet network transmit and receive audio data by matching bundle num-
bers. Matching the bundle number on the transmitting and receiving devices is analogous 
to making a physical cable connection between two devices. For example, if the Transmit 
bundle assignment (CobraNet Output) on NHB32-C #1 is set to bundle #5, and the Receive 
bundle assignment (CobraNet Input) on NHB32-C #2 is also set to bundle #5, audio data 
in bundle #5 will be carried from NHB32-C #1 to NHB32-C #2.

CobraNet Page

In this page you can make CobraNet bundle assignments, and specify the audio resolution 
and CobraNet network latency for the transmitted bundles.

CobraNet distributes digital audio data in bundles. A single bundle can carry eight channels 
of 20-bit/48 kHz digital audio, or seven channels of 24-bit/48 kHz digital audio (with a 
latency of 5.33 ms). The NHB32-C supports bundles 0 through 16,383 (multicast and uni-
cast). Bundle 0 is not really a bundle as such, more of a null setting used to disable trans-
mission or reception.

Enable Unicast: 

If you do not check this check box, you can specify bundle 0 and multi-

cast bundles 1 through 225. If you check this check box, you can specify unicast bundles 256 
through 16,383, in addition to bundle 0 and multicast bundles 1 through 225.

Receive bundle assignment:  

These parameters are used to specify the bundles that 

contain the CobraNet channels you want to patch to the NHB32-C’s AES/EBU outputs. You 
can patch the individual channels in each bundle on the NHB Patch page (see 

page 17



This parameter is used to specify the latency of audio data distributed from the 

NHB32-C to the CobraNet network in msec units. In most cases, select 5.33 ms. You can 
also select 2.67 ms or 1.33 ms (low latency). However if you decrease the latency, this will