Following the response of JasonH, please don't hesitate to contact me if you are in need of a consultant to help you with the setup and configuration of the solution. I can also help you with any customization that your case may require. You may contact me by email, or directly on Skype (ID: karelboek)
Based on the transcoding which is a high CPU intensive process, you're going to need a high spec server to get the number of servers required to the lowest amount possible.
Please see our
Wowza Transcoder AddOn Performance Benchmark which should give you an idea on how many servers you will require based on the number of transcodes. I recommend they are at least to the minimum spec which can be found in the "System Requirements" which can be found
You're wanting to push 60 streams and have provided 4 bitrates which would indicate 15 inbound streams for transcoding, however if the inbound stream is already 2000 kbps and the correct codec (H.264/AAC) you may need less outbound streams from the transcoder itself.
Please see the
Transcoder tutorial for configuration details, note that the Wowza transcoder do not transcode video on demand content and is for live streaming only.
You will also need to take a look at our
nDVR tutorial for reference when configuring the application.