[Jack-Devel] Is JACK suitable for this?

Hi all, I'm new to this list and would like to ask the people on this list for some advise. I'm searching for a tool to transfer hundreds of audio channels from an existing application to some code of our own. The existing application is SuperCollider and as I understand it supports connections by JACK. But is JACK suitable to connect hundreds of audio channels? We need low latency. Will JACK be low latency? How many times are the samples internally copied? Is it true that all audio will be routed through some network layers? How difficult will it be to add audio input to our own application to receive audio from JACK? I hope you people can help me a little bit further with these questions. Greetings.