Command line Jack clients to transmit full quality multichannel audio over a local IP network, with adaptive resampling by the receiver(s). Zita-njbridge can be used for a one-to-one connection (using UDP) or in a one-to-many system (using multicast). Sender and receiver(s) can each have their own sample rate and period size, and no word clock sync between them is assumed. Up 64 channels can be transmitted, receivers can select any combination of these. On a lightly loaded or dedicated network zita-njbridge can provide low latency (same as for an analog connection). Additional buffering can be specified in case there is significant network delay jitter. IPv6 is fully supported.